./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.c -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 6f8a234fc2a7dd634bd03f872a0d7e8707283ecf0f996c6ed729f53ab07d6660 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 09:36:25,205 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 09:36:25,261 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-20 09:36:25,266 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 09:36:25,267 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 09:36:25,288 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 09:36:25,290 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 09:36:25,290 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 09:36:25,291 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 09:36:25,292 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 09:36:25,292 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 09:36:25,293 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 09:36:25,293 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 09:36:25,294 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 09:36:25,294 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 09:36:25,295 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 09:36:25,295 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 09:36:25,296 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 09:36:25,296 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 09:36:25,296 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 09:36:25,296 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 09:36:25,297 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 09:36:25,297 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 09:36:25,298 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 09:36:25,298 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 09:36:25,298 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 09:36:25,298 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 09:36:25,298 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 09:36:25,299 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 09:36:25,299 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 09:36:25,299 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 09:36:25,300 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 09:36:25,300 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 09:36:25,300 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 09:36:25,300 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 09:36:25,301 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 09:36:25,301 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 09:36:25,301 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 09:36:25,301 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 09:36:25,301 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 09:36:25,301 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 09:36:25,302 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 09:36:25,302 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6f8a234fc2a7dd634bd03f872a0d7e8707283ecf0f996c6ed729f53ab07d6660 [2024-11-20 09:36:25,505 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 09:36:25,526 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 09:36:25,529 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 09:36:25,530 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 09:36:25,531 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 09:36:25,531 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.c [2024-11-20 09:36:26,771 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 09:36:26,784 ERROR L? ?]: Error during toolchain job processing: java.lang.NullPointerException at org.eclipse.cdt.internal.core.model.PathEntry.kindFromString(PathEntry.java:80) at org.eclipse.cdt.internal.core.model.DefaultPathEntryStore.decodePathEntry(DefaultPathEntryStore.java:127) at org.eclipse.cdt.internal.core.model.DefaultPathEntryStore.getRawPathEntries(DefaultPathEntryStore.java:97) at org.eclipse.cdt.internal.core.model.PathEntryStoreProxy.getRawPathEntries(PathEntryStoreProxy.java:102) at org.eclipse.cdt.internal.core.model.PathEntryManager.getRawPathEntries(PathEntryManager.java:666) at org.eclipse.cdt.core.model.CoreModel.getRawPathEntries(CoreModel.java:937) at org.eclipse.cdt.core.model.CoreModel.oldIsScannerInformationEmpty(CoreModel.java:1307) at org.eclipse.cdt.core.model.CoreModel.isScannerInformationEmpty(CoreModel.java:1252) at org.eclipse.cdt.internal.core.pdom.indexer.ProjectIndexerInputAdapter.isFileBuildConfigured(ProjectIndexerInputAdapter.java:267) at org.eclipse.cdt.internal.core.pdom.AbstractIndexerTask.isRequiredInIndex(AbstractIndexerTask.java:748) at org.eclipse.cdt.internal.core.pdom.AbstractIndexerTask.extractFiles(AbstractIndexerTask.java:667) at org.eclipse.cdt.internal.core.pdom.AbstractIndexerTask.runTask(AbstractIndexerTask.java:558) at org.eclipse.cdt.internal.core.pdom.indexer.PDOMIndexerTask.run(PDOMIndexerTask.java:164) at org.eclipse.cdt.internal.core.pdom.PDOMIndexerJob.run(PDOMIndexerJob.java:160) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-20 09:36:26,938 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 09:36:26,938 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.c [2024-11-20 09:36:26,947 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91df8cbef/32554d46aadf4c17af3ff8bd70ca6fd3/FLAGfe8d45083 [2024-11-20 09:36:27,325 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91df8cbef/32554d46aadf4c17af3ff8bd70ca6fd3 [2024-11-20 09:36:27,327 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 09:36:27,328 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 09:36:27,329 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 09:36:27,329 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 09:36:27,334 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 09:36:27,334 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:36:27" (1/1) ... [2024-11-20 09:36:27,336 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@103df69e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:36:27, skipping insertion in model container [2024-11-20 09:36:27,336 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:36:27" (1/1) ... [2024-11-20 09:36:27,362 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 09:36:27,617 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/weaver/chl-poker-hand-symm.wvr.c[12847,12860] [2024-11-20 09:36:27,625 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 09:36:27,648 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 09:36:27,714 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/weaver/chl-poker-hand-symm.wvr.c[12847,12860] [2024-11-20 09:36:27,716 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 09:36:27,731 INFO L204 MainTranslator]: Completed translation [2024-11-20 09:36:27,732 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:36:27 WrapperNode [2024-11-20 09:36:27,732 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 09:36:27,733 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 09:36:27,735 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 09:36:27,735 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 09:36:27,740 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:36:27" (1/1) ... [2024-11-20 09:36:27,757 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:36:27" (1/1) ... [2024-11-20 09:36:27,813 INFO L138 Inliner]: procedures = 24, calls = 297, calls flagged for inlining = 69, calls inlined = 97, statements flattened = 1559 [2024-11-20 09:36:27,813 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 09:36:27,814 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 09:36:27,814 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 09:36:27,814 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 09:36:27,824 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:36:27" (1/1) ... [2024-11-20 09:36:27,824 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:36:27" (1/1) ... [2024-11-20 09:36:27,831 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:36:27" (1/1) ... [2024-11-20 09:36:27,859 INFO L175 MemorySlicer]: Split 186 memory accesses to 2 slices as follows [2, 184]. 99 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 8 writes are split as follows [0, 8]. [2024-11-20 09:36:27,859 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:36:27" (1/1) ... [2024-11-20 09:36:27,860 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:36:27" (1/1) ... [2024-11-20 09:36:27,912 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:36:27" (1/1) ... [2024-11-20 09:36:27,934 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:36:27" (1/1) ... [2024-11-20 09:36:27,942 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:36:27" (1/1) ... [2024-11-20 09:36:27,949 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:36:27" (1/1) ... [2024-11-20 09:36:27,960 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 09:36:27,962 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 09:36:27,962 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 09:36:27,962 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 09:36:27,963 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:36:27" (1/1) ... [2024-11-20 09:36:27,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 09:36:27,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 09:36:27,994 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) [2024-11-20 09:36:27,996 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 [2024-11-20 09:36:28,032 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 09:36:28,032 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-20 09:36:28,032 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-20 09:36:28,032 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-20 09:36:28,032 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-20 09:36:28,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 09:36:28,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-20 09:36:28,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-20 09:36:28,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-20 09:36:28,033 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-20 09:36:28,033 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-20 09:36:28,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-20 09:36:28,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 09:36:28,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 09:36:28,033 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-20 09:36:28,033 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-20 09:36:28,036 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-20 09:36:28,192 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 09:36:28,194 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 09:36:29,552 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-20 09:36:29,552 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 09:36:30,829 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 09:36:30,829 INFO L316 CfgBuilder]: Removed 12 assume(true) statements. [2024-11-20 09:36:30,830 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:36:30 BoogieIcfgContainer [2024-11-20 09:36:30,830 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 09:36:30,834 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 09:36:30,834 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 09:36:30,837 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 09:36:30,837 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:36:27" (1/3) ... [2024-11-20 09:36:30,838 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7921c0ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:36:30, skipping insertion in model container [2024-11-20 09:36:30,839 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:36:27" (2/3) ... [2024-11-20 09:36:30,839 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7921c0ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:36:30, skipping insertion in model container [2024-11-20 09:36:30,839 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:36:30" (3/3) ... [2024-11-20 09:36:30,841 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-poker-hand-symm.wvr.c [2024-11-20 09:36:30,855 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 09:36:30,856 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-20 09:36:30,856 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-20 09:36:31,147 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-20 09:36:31,183 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 73 places, 94 transitions, 202 flow [2024-11-20 09:36:31,224 INFO L124 PetriNetUnfolderBase]: 28/92 cut-off events. [2024-11-20 09:36:31,224 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-20 09:36:31,228 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 92 events. 28/92 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 242 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 71. Up to 7 conditions per place. [2024-11-20 09:36:31,228 INFO L82 GeneralOperation]: Start removeDead. Operand has 73 places, 94 transitions, 202 flow [2024-11-20 09:36:31,231 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 70 places, 91 transitions, 194 flow [2024-11-20 09:36:31,239 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 09:36:31,246 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;@5f8cf4fa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 09:36:31,246 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-11-20 09:36:31,278 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 09:36:31,279 INFO L124 PetriNetUnfolderBase]: 28/90 cut-off events. [2024-11-20 09:36:31,279 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-20 09:36:31,279 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:36:31,280 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] [2024-11-20 09:36:31,280 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-20 09:36:31,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:36:31,284 INFO L85 PathProgramCache]: Analyzing trace with hash -901911410, now seen corresponding path program 1 times [2024-11-20 09:36:31,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:36:31,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043139078] [2024-11-20 09:36:31,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:36:31,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:36:31,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:36:31,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 09:36:31,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:36:31,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043139078] [2024-11-20 09:36:31,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043139078] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:36:31,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:36:31,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 09:36:31,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935009733] [2024-11-20 09:36:31,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:36:31,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 09:36:31,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:36:31,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 09:36:31,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 09:36:31,748 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 94 [2024-11-20 09:36:31,750 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 91 transitions, 194 flow. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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) [2024-11-20 09:36:31,750 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:36:31,750 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 94 [2024-11-20 09:36:31,751 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:36:32,748 INFO L124 PetriNetUnfolderBase]: 2502/3740 cut-off events. [2024-11-20 09:36:32,749 INFO L125 PetriNetUnfolderBase]: For 87/87 co-relation queries the response was YES. [2024-11-20 09:36:32,754 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7558 conditions, 3740 events. 2502/3740 cut-off events. For 87/87 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 17699 event pairs, 1702 based on Foata normal form. 0/2940 useless extension candidates. Maximal degree in co-relation 7372. Up to 3738 conditions per place. [2024-11-20 09:36:32,767 INFO L140 encePairwiseOnDemand]: 85/94 looper letters, 84 selfloop transitions, 4 changer transitions 0/89 dead transitions. [2024-11-20 09:36:32,768 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 89 transitions, 366 flow [2024-11-20 09:36:32,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 09:36:32,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 09:36:32,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 103 transitions. [2024-11-20 09:36:32,778 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.36524822695035464 [2024-11-20 09:36:32,779 INFO L175 Difference]: Start difference. First operand has 70 places, 91 transitions, 194 flow. Second operand 3 states and 103 transitions. [2024-11-20 09:36:32,780 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 89 transitions, 366 flow [2024-11-20 09:36:32,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 89 transitions, 358 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-20 09:36:32,789 INFO L231 Difference]: Finished difference. Result has 69 places, 89 transitions, 200 flow [2024-11-20 09:36:32,791 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=200, PETRI_PLACES=69, PETRI_TRANSITIONS=89} [2024-11-20 09:36:32,795 INFO L277 CegarLoopForPetriNet]: 70 programPoint places, -1 predicate places. [2024-11-20 09:36:32,795 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 89 transitions, 200 flow [2024-11-20 09:36:32,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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) [2024-11-20 09:36:32,795 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:36:32,796 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:36:32,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 09:36:32,796 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-20 09:36:32,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:36:32,797 INFO L85 PathProgramCache]: Analyzing trace with hash -1016506388, now seen corresponding path program 1 times [2024-11-20 09:36:32,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:36:32,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065722369] [2024-11-20 09:36:32,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:36:32,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:36:32,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:36:32,950 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-20 09:36:32,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:36:32,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065722369] [2024-11-20 09:36:32,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065722369] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:36:32,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:36:32,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 09:36:32,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546691137] [2024-11-20 09:36:32,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:36:32,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 09:36:32,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:36:32,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 09:36:32,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 09:36:32,954 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 94 [2024-11-20 09:36:32,954 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 89 transitions, 200 flow. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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) [2024-11-20 09:36:32,954 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:36:32,954 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 94 [2024-11-20 09:36:32,954 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:36:33,670 INFO L124 PetriNetUnfolderBase]: 2502/3742 cut-off events. [2024-11-20 09:36:33,671 INFO L125 PetriNetUnfolderBase]: For 21/21 co-relation queries the response was YES. [2024-11-20 09:36:33,674 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7521 conditions, 3742 events. 2502/3742 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 17721 event pairs, 1702 based on Foata normal form. 0/2944 useless extension candidates. Maximal degree in co-relation 7472. Up to 3738 conditions per place. [2024-11-20 09:36:33,684 INFO L140 encePairwiseOnDemand]: 85/94 looper letters, 82 selfloop transitions, 8 changer transitions 0/91 dead transitions. [2024-11-20 09:36:33,684 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 91 transitions, 384 flow [2024-11-20 09:36:33,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 09:36:33,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 09:36:33,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 101 transitions. [2024-11-20 09:36:33,688 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.35815602836879434 [2024-11-20 09:36:33,688 INFO L175 Difference]: Start difference. First operand has 69 places, 89 transitions, 200 flow. Second operand 3 states and 101 transitions. [2024-11-20 09:36:33,688 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 91 transitions, 384 flow [2024-11-20 09:36:33,688 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 91 transitions, 380 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 09:36:33,690 INFO L231 Difference]: Finished difference. Result has 71 places, 91 transitions, 230 flow [2024-11-20 09:36:33,690 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=230, PETRI_PLACES=71, PETRI_TRANSITIONS=91} [2024-11-20 09:36:33,691 INFO L277 CegarLoopForPetriNet]: 70 programPoint places, 1 predicate places. [2024-11-20 09:36:33,691 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 91 transitions, 230 flow [2024-11-20 09:36:33,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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) [2024-11-20 09:36:33,692 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:36:33,692 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] [2024-11-20 09:36:33,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 09:36:33,693 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-20 09:36:33,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:36:33,694 INFO L85 PathProgramCache]: Analyzing trace with hash -1952730255, now seen corresponding path program 1 times [2024-11-20 09:36:33,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:36:33,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861407817] [2024-11-20 09:36:33,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:36:33,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:36:33,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:36:33,883 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-20 09:36:33,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:36:33,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861407817] [2024-11-20 09:36:33,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861407817] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 09:36:33,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [805043708] [2024-11-20 09:36:33,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:36:33,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 09:36:33,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 09:36:33,888 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 09:36:33,889 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-20 09:36:34,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:36:34,217 INFO L255 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-20 09:36:34,223 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 09:36:34,267 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-20 09:36:34,267 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 09:36:34,291 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-20 09:36:34,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [805043708] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 09:36:34,292 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 09:36:34,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 8 [2024-11-20 09:36:34,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156266313] [2024-11-20 09:36:34,292 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 09:36:34,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 09:36:34,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:36:34,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 09:36:34,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2024-11-20 09:36:34,294 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 94 [2024-11-20 09:36:34,294 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 91 transitions, 230 flow. Second operand has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 09:36:34,294 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:36:34,294 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 94 [2024-11-20 09:36:34,294 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:36:35,124 INFO L124 PetriNetUnfolderBase]: 2502/3762 cut-off events. [2024-11-20 09:36:35,124 INFO L125 PetriNetUnfolderBase]: For 32/32 co-relation queries the response was YES. [2024-11-20 09:36:35,127 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7587 conditions, 3762 events. 2502/3762 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 17721 event pairs, 1702 based on Foata normal form. 8/2973 useless extension candidates. Maximal degree in co-relation 7481. Up to 3738 conditions per place. [2024-11-20 09:36:35,137 INFO L140 encePairwiseOnDemand]: 77/94 looper letters, 78 selfloop transitions, 32 changer transitions 0/111 dead transitions. [2024-11-20 09:36:35,137 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 111 transitions, 514 flow [2024-11-20 09:36:35,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 09:36:35,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-20 09:36:35,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 154 transitions. [2024-11-20 09:36:35,139 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.2047872340425532 [2024-11-20 09:36:35,139 INFO L175 Difference]: Start difference. First operand has 71 places, 91 transitions, 230 flow. Second operand 8 states and 154 transitions. [2024-11-20 09:36:35,139 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 111 transitions, 514 flow [2024-11-20 09:36:35,140 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 111 transitions, 506 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 09:36:35,141 INFO L231 Difference]: Finished difference. Result has 80 places, 111 transitions, 408 flow [2024-11-20 09:36:35,141 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=408, PETRI_PLACES=80, PETRI_TRANSITIONS=111} [2024-11-20 09:36:35,142 INFO L277 CegarLoopForPetriNet]: 70 programPoint places, 10 predicate places. [2024-11-20 09:36:35,142 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 111 transitions, 408 flow [2024-11-20 09:36:35,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 09:36:35,142 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:36:35,143 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 2, 2, 2, 2, 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] [2024-11-20 09:36:35,151 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-20 09:36:35,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 09:36:35,344 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-20 09:36:35,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:36:35,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1433088952, now seen corresponding path program 1 times [2024-11-20 09:36:35,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:36:35,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112470937] [2024-11-20 09:36:35,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:36:35,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:36:35,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:36:35,564 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-20 09:36:35,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:36:35,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112470937] [2024-11-20 09:36:35,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112470937] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 09:36:35,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [230688606] [2024-11-20 09:36:35,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:36:35,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 09:36:35,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 09:36:35,569 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 09:36:35,569 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-20 09:36:35,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:36:35,901 INFO L255 TraceCheckSpWp]: Trace formula consists of 584 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-20 09:36:35,903 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 09:36:35,956 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-20 09:36:35,956 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 09:36:35,997 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-20 09:36:35,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [230688606] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 09:36:35,999 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 09:36:36,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2024-11-20 09:36:36,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196062223] [2024-11-20 09:36:36,000 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 09:36:36,000 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-20 09:36:36,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:36:36,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-20 09:36:36,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2024-11-20 09:36:36,001 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 94 [2024-11-20 09:36:36,001 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 111 transitions, 408 flow. Second operand has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 13 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 09:36:36,002 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:36:36,002 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 94 [2024-11-20 09:36:36,002 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:36:36,919 INFO L124 PetriNetUnfolderBase]: 2502/3774 cut-off events. [2024-11-20 09:36:36,920 INFO L125 PetriNetUnfolderBase]: For 27/27 co-relation queries the response was YES. [2024-11-20 09:36:36,924 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7687 conditions, 3774 events. 2502/3774 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 17720 event pairs, 1702 based on Foata normal form. 11/2992 useless extension candidates. Maximal degree in co-relation 7495. Up to 3738 conditions per place. [2024-11-20 09:36:36,936 INFO L140 encePairwiseOnDemand]: 77/94 looper letters, 78 selfloop transitions, 44 changer transitions 0/123 dead transitions. [2024-11-20 09:36:36,936 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 123 transitions, 708 flow [2024-11-20 09:36:36,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-20 09:36:36,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-20 09:36:36,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 167 transitions. [2024-11-20 09:36:36,938 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.16150870406189555 [2024-11-20 09:36:36,938 INFO L175 Difference]: Start difference. First operand has 80 places, 111 transitions, 408 flow. Second operand 11 states and 167 transitions. [2024-11-20 09:36:36,938 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 123 transitions, 708 flow [2024-11-20 09:36:36,941 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 123 transitions, 654 flow, removed 17 selfloop flow, removed 3 redundant places. [2024-11-20 09:36:36,943 INFO L231 Difference]: Finished difference. Result has 88 places, 123 transitions, 524 flow [2024-11-20 09:36:36,943 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=358, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=524, PETRI_PLACES=88, PETRI_TRANSITIONS=123} [2024-11-20 09:36:36,944 INFO L277 CegarLoopForPetriNet]: 70 programPoint places, 18 predicate places. [2024-11-20 09:36:36,944 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 123 transitions, 524 flow [2024-11-20 09:36:36,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 13 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 09:36:36,944 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:36:36,945 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 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] [2024-11-20 09:36:36,955 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-20 09:36:37,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2024-11-20 09:36:37,146 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-20 09:36:37,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:36:37,147 INFO L85 PathProgramCache]: Analyzing trace with hash 719978097, now seen corresponding path program 2 times [2024-11-20 09:36:37,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:36:37,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733913597] [2024-11-20 09:36:37,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:36:37,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:36:37,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:36:37,517 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-11-20 09:36:37,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:36:37,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733913597] [2024-11-20 09:36:37,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733913597] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 09:36:37,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [78677077] [2024-11-20 09:36:37,518 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-20 09:36:37,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 09:36:37,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 09:36:37,520 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 09:36:37,521 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-20 09:36:37,831 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-20 09:36:37,831 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 09:36:37,835 INFO L255 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-20 09:36:37,839 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 09:36:37,893 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 09:36:37,894 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 23 [2024-11-20 09:36:37,924 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-20 09:36:37,925 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 09:36:37,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [78677077] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:36:37,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 09:36:37,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2024-11-20 09:36:37,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621838145] [2024-11-20 09:36:37,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:36:37,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 09:36:37,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:36:37,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 09:36:37,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-11-20 09:36:37,929 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 94 [2024-11-20 09:36:37,930 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 123 transitions, 524 flow. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 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) [2024-11-20 09:36:37,930 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:36:37,930 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 94 [2024-11-20 09:36:37,930 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:36:39,182 INFO L124 PetriNetUnfolderBase]: 3916/5918 cut-off events. [2024-11-20 09:36:39,182 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-20 09:36:39,189 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12015 conditions, 5918 events. 3916/5918 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 251. Compared 30625 event pairs, 1413 based on Foata normal form. 1/4715 useless extension candidates. Maximal degree in co-relation 11775. Up to 3014 conditions per place. [2024-11-20 09:36:39,212 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 197 selfloop transitions, 22 changer transitions 9/229 dead transitions. [2024-11-20 09:36:39,213 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 229 transitions, 1198 flow [2024-11-20 09:36:39,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 09:36:39,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 09:36:39,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 209 transitions. [2024-11-20 09:36:39,215 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.44468085106382976 [2024-11-20 09:36:39,216 INFO L175 Difference]: Start difference. First operand has 88 places, 123 transitions, 524 flow. Second operand 5 states and 209 transitions. [2024-11-20 09:36:39,217 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 229 transitions, 1198 flow [2024-11-20 09:36:39,219 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 229 transitions, 1122 flow, removed 14 selfloop flow, removed 4 redundant places. [2024-11-20 09:36:39,221 INFO L231 Difference]: Finished difference. Result has 91 places, 141 transitions, 591 flow [2024-11-20 09:36:39,222 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=448, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=591, PETRI_PLACES=91, PETRI_TRANSITIONS=141} [2024-11-20 09:36:39,222 INFO L277 CegarLoopForPetriNet]: 70 programPoint places, 21 predicate places. [2024-11-20 09:36:39,222 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 141 transitions, 591 flow [2024-11-20 09:36:39,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 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) [2024-11-20 09:36:39,223 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:36:39,223 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 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] [2024-11-20 09:36:39,231 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-20 09:36:39,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 09:36:39,425 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-20 09:36:39,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:36:39,426 INFO L85 PathProgramCache]: Analyzing trace with hash -489758041, now seen corresponding path program 3 times [2024-11-20 09:36:39,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:36:39,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445659503] [2024-11-20 09:36:39,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:36:39,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:36:39,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:36:39,770 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-11-20 09:36:39,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:36:39,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445659503] [2024-11-20 09:36:39,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445659503] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 09:36:39,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1643871898] [2024-11-20 09:36:39,771 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-20 09:36:39,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 09:36:39,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 09:36:39,773 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 09:36:39,793 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-20 09:36:40,120 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-20 09:36:40,121 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 09:36:40,123 INFO L255 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-20 09:36:40,126 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 09:36:40,160 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 09:36:40,160 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 23 [2024-11-20 09:36:40,180 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-20 09:36:40,180 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 09:36:40,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1643871898] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:36:40,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 09:36:40,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2024-11-20 09:36:40,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673907016] [2024-11-20 09:36:40,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:36:40,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 09:36:40,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:36:40,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 09:36:40,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-11-20 09:36:40,182 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 94 [2024-11-20 09:36:40,183 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 141 transitions, 591 flow. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 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) [2024-11-20 09:36:40,183 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:36:40,183 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 94 [2024-11-20 09:36:40,183 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:36:41,654 INFO L124 PetriNetUnfolderBase]: 4031/6134 cut-off events. [2024-11-20 09:36:41,654 INFO L125 PetriNetUnfolderBase]: For 884/884 co-relation queries the response was YES. [2024-11-20 09:36:41,663 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14752 conditions, 6134 events. 4031/6134 cut-off events. For 884/884 co-relation queries the response was YES. Maximal size of possible extension queue 268. Compared 32437 event pairs, 1419 based on Foata normal form. 1/4899 useless extension candidates. Maximal degree in co-relation 14718. Up to 3289 conditions per place. [2024-11-20 09:36:41,681 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 195 selfloop transitions, 22 changer transitions 9/227 dead transitions. [2024-11-20 09:36:41,681 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 227 transitions, 1242 flow [2024-11-20 09:36:41,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 09:36:41,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 09:36:41,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 207 transitions. [2024-11-20 09:36:41,682 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.44042553191489364 [2024-11-20 09:36:41,682 INFO L175 Difference]: Start difference. First operand has 91 places, 141 transitions, 591 flow. Second operand 5 states and 207 transitions. [2024-11-20 09:36:41,682 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 227 transitions, 1242 flow [2024-11-20 09:36:41,691 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 227 transitions, 1234 flow, removed 3 selfloop flow, removed 1 redundant places. [2024-11-20 09:36:41,693 INFO L231 Difference]: Finished difference. Result has 96 places, 141 transitions, 641 flow [2024-11-20 09:36:41,694 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=585, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=641, PETRI_PLACES=96, PETRI_TRANSITIONS=141} [2024-11-20 09:36:41,694 INFO L277 CegarLoopForPetriNet]: 70 programPoint places, 26 predicate places. [2024-11-20 09:36:41,694 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 141 transitions, 641 flow [2024-11-20 09:36:41,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 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) [2024-11-20 09:36:41,695 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:36:41,695 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 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] [2024-11-20 09:36:41,703 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-20 09:36:41,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 09:36:41,896 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-20 09:36:41,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:36:41,896 INFO L85 PathProgramCache]: Analyzing trace with hash 2113688169, now seen corresponding path program 1 times [2024-11-20 09:36:41,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:36:41,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104303647] [2024-11-20 09:36:41,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:36:41,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:36:41,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:36:42,242 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-11-20 09:36:42,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:36:42,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104303647] [2024-11-20 09:36:42,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104303647] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 09:36:42,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [751647954] [2024-11-20 09:36:42,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:36:42,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 09:36:42,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 09:36:42,245 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 09:36:42,247 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-20 09:36:42,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:36:42,623 INFO L255 TraceCheckSpWp]: Trace formula consists of 690 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-20 09:36:42,625 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 09:36:42,712 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-11-20 09:36:42,715 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 09:36:42,821 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-11-20 09:36:42,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [751647954] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 09:36:42,821 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 09:36:42,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 20 [2024-11-20 09:36:42,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418050588] [2024-11-20 09:36:42,822 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 09:36:42,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-20 09:36:42,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:36:42,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-20 09:36:42,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=175, Invalid=205, Unknown=0, NotChecked=0, Total=380 [2024-11-20 09:36:42,823 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 94 [2024-11-20 09:36:42,827 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 141 transitions, 641 flow. Second operand has 20 states, 20 states have (on average 5.8) internal successors, (116), 20 states have internal predecessors, (116), 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) [2024-11-20 09:36:42,827 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:36:42,827 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 94 [2024-11-20 09:36:42,827 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:36:44,080 INFO L124 PetriNetUnfolderBase]: 4018/6124 cut-off events. [2024-11-20 09:36:44,080 INFO L125 PetriNetUnfolderBase]: For 2584/2584 co-relation queries the response was YES. [2024-11-20 09:36:44,090 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15661 conditions, 6124 events. 4018/6124 cut-off events. For 2584/2584 co-relation queries the response was YES. Maximal size of possible extension queue 266. Compared 31911 event pairs, 2847 based on Foata normal form. 14/4902 useless extension candidates. Maximal degree in co-relation 15624. Up to 6072 conditions per place. [2024-11-20 09:36:44,106 INFO L140 encePairwiseOnDemand]: 77/94 looper letters, 96 selfloop transitions, 58 changer transitions 0/155 dead transitions. [2024-11-20 09:36:44,106 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 155 transitions, 1061 flow [2024-11-20 09:36:44,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-20 09:36:44,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-20 09:36:44,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 192 transitions. [2024-11-20 09:36:44,109 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.1458966565349544 [2024-11-20 09:36:44,109 INFO L175 Difference]: Start difference. First operand has 96 places, 141 transitions, 641 flow. Second operand 14 states and 192 transitions. [2024-11-20 09:36:44,109 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 155 transitions, 1061 flow [2024-11-20 09:36:44,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 155 transitions, 1036 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-11-20 09:36:44,121 INFO L231 Difference]: Finished difference. Result has 113 places, 155 transitions, 942 flow [2024-11-20 09:36:44,122 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=616, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=942, PETRI_PLACES=113, PETRI_TRANSITIONS=155} [2024-11-20 09:36:44,123 INFO L277 CegarLoopForPetriNet]: 70 programPoint places, 43 predicate places. [2024-11-20 09:36:44,123 INFO L471 AbstractCegarLoop]: Abstraction has has 113 places, 155 transitions, 942 flow [2024-11-20 09:36:44,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 5.8) internal successors, (116), 20 states have internal predecessors, (116), 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) [2024-11-20 09:36:44,124 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:36:44,124 INFO L204 CegarLoopForPetriNet]: trace histogram [12, 12, 5, 5, 4, 4, 4, 4, 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] [2024-11-20 09:36:44,136 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-20 09:36:44,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 09:36:44,325 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-20 09:36:44,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:36:44,327 INFO L85 PathProgramCache]: Analyzing trace with hash 642830997, now seen corresponding path program 2 times [2024-11-20 09:36:44,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:36:44,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625926085] [2024-11-20 09:36:44,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:36:44,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:36:44,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:36:44,848 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-20 09:36:44,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:36:44,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625926085] [2024-11-20 09:36:44,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625926085] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 09:36:44,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [710450018] [2024-11-20 09:36:44,849 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-20 09:36:44,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 09:36:44,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 09:36:44,851 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 09:36:44,853 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-20 09:36:45,175 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-20 09:36:45,175 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 09:36:45,177 INFO L255 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-20 09:36:45,181 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 09:36:45,332 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2024-11-20 09:36:45,332 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 9 [2024-11-20 09:36:45,353 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2024-11-20 09:36:45,353 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 09:36:45,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [710450018] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:36:45,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 09:36:45,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [15] total 19 [2024-11-20 09:36:45,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8509475] [2024-11-20 09:36:45,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:36:45,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 09:36:45,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:36:45,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 09:36:45,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=225, Unknown=0, NotChecked=0, Total=342 [2024-11-20 09:36:45,355 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 94 [2024-11-20 09:36:45,355 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 155 transitions, 942 flow. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 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) [2024-11-20 09:36:45,355 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:36:45,356 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 94 [2024-11-20 09:36:45,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:36:47,240 INFO L124 PetriNetUnfolderBase]: 4949/7803 cut-off events. [2024-11-20 09:36:47,240 INFO L125 PetriNetUnfolderBase]: For 1677/1677 co-relation queries the response was YES. [2024-11-20 09:36:47,256 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19341 conditions, 7803 events. 4949/7803 cut-off events. For 1677/1677 co-relation queries the response was YES. Maximal size of possible extension queue 346. Compared 45898 event pairs, 919 based on Foata normal form. 64/6387 useless extension candidates. Maximal degree in co-relation 19005. Up to 2348 conditions per place. [2024-11-20 09:36:47,274 INFO L140 encePairwiseOnDemand]: 71/94 looper letters, 288 selfloop transitions, 65 changer transitions 11/365 dead transitions. [2024-11-20 09:36:47,274 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 365 transitions, 2247 flow [2024-11-20 09:36:47,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 09:36:47,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-20 09:36:47,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 322 transitions. [2024-11-20 09:36:47,276 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42819148936170215 [2024-11-20 09:36:47,277 INFO L175 Difference]: Start difference. First operand has 113 places, 155 transitions, 942 flow. Second operand 8 states and 322 transitions. [2024-11-20 09:36:47,277 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 365 transitions, 2247 flow [2024-11-20 09:36:47,286 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 365 transitions, 2175 flow, removed 32 selfloop flow, removed 2 redundant places. [2024-11-20 09:36:47,289 INFO L231 Difference]: Finished difference. Result has 122 places, 199 transitions, 1298 flow [2024-11-20 09:36:47,289 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=863, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1298, PETRI_PLACES=122, PETRI_TRANSITIONS=199} [2024-11-20 09:36:47,290 INFO L277 CegarLoopForPetriNet]: 70 programPoint places, 52 predicate places. [2024-11-20 09:36:47,290 INFO L471 AbstractCegarLoop]: Abstraction has has 122 places, 199 transitions, 1298 flow [2024-11-20 09:36:47,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 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) [2024-11-20 09:36:47,290 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:36:47,290 INFO L204 CegarLoopForPetriNet]: trace histogram [12, 12, 5, 5, 4, 4, 4, 4, 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] [2024-11-20 09:36:47,299 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-20 09:36:47,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 09:36:47,491 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-20 09:36:47,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:36:47,491 INFO L85 PathProgramCache]: Analyzing trace with hash 499129417, now seen corresponding path program 3 times [2024-11-20 09:36:47,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:36:47,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026654711] [2024-11-20 09:36:47,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:36:47,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:36:47,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:36:47,965 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-20 09:36:47,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:36:47,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026654711] [2024-11-20 09:36:47,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026654711] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 09:36:47,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [109640140] [2024-11-20 09:36:47,965 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-20 09:36:47,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 09:36:47,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 09:36:47,968 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 09:36:47,970 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-20 09:36:48,377 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-20 09:36:48,377 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 09:36:48,380 INFO L255 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-20 09:36:48,384 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 09:36:48,428 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2024-11-20 09:36:48,428 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 09:36:48,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [109640140] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:36:48,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 09:36:48,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [15] total 16 [2024-11-20 09:36:48,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097269100] [2024-11-20 09:36:48,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:36:48,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 09:36:48,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:36:48,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 09:36:48,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=133, Unknown=0, NotChecked=0, Total=240 [2024-11-20 09:36:48,431 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 94 [2024-11-20 09:36:48,431 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 199 transitions, 1298 flow. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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) [2024-11-20 09:36:48,432 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:36:48,432 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 94 [2024-11-20 09:36:48,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:36:49,882 INFO L124 PetriNetUnfolderBase]: 4849/7650 cut-off events. [2024-11-20 09:36:49,882 INFO L125 PetriNetUnfolderBase]: For 4720/4720 co-relation queries the response was YES. [2024-11-20 09:36:49,898 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21841 conditions, 7650 events. 4849/7650 cut-off events. For 4720/4720 co-relation queries the response was YES. Maximal size of possible extension queue 327. Compared 44105 event pairs, 3416 based on Foata normal form. 45/6225 useless extension candidates. Maximal degree in co-relation 21517. Up to 7229 conditions per place. [2024-11-20 09:36:49,913 INFO L140 encePairwiseOnDemand]: 82/94 looper letters, 205 selfloop transitions, 1 changer transitions 31/238 dead transitions. [2024-11-20 09:36:49,913 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 238 transitions, 1850 flow [2024-11-20 09:36:49,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 09:36:49,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 09:36:49,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 149 transitions. [2024-11-20 09:36:49,914 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5283687943262412 [2024-11-20 09:36:49,914 INFO L175 Difference]: Start difference. First operand has 122 places, 199 transitions, 1298 flow. Second operand 3 states and 149 transitions. [2024-11-20 09:36:49,914 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 238 transitions, 1850 flow [2024-11-20 09:36:49,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 238 transitions, 1850 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-20 09:36:49,935 INFO L231 Difference]: Finished difference. Result has 125 places, 191 transitions, 1257 flow [2024-11-20 09:36:49,935 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=1267, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=193, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1257, PETRI_PLACES=125, PETRI_TRANSITIONS=191} [2024-11-20 09:36:49,936 INFO L277 CegarLoopForPetriNet]: 70 programPoint places, 55 predicate places. [2024-11-20 09:36:49,936 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 191 transitions, 1257 flow [2024-11-20 09:36:49,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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) [2024-11-20 09:36:49,937 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:36:49,937 INFO L204 CegarLoopForPetriNet]: trace histogram [12, 12, 5, 5, 4, 4, 4, 4, 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] [2024-11-20 09:36:49,946 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-20 09:36:50,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 09:36:50,141 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-20 09:36:50,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:36:50,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1456462089, now seen corresponding path program 1 times [2024-11-20 09:36:50,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:36:50,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461872766] [2024-11-20 09:36:50,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:36:50,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:36:50,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:36:50,604 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-20 09:36:50,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:36:50,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461872766] [2024-11-20 09:36:50,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461872766] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 09:36:50,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1200418403] [2024-11-20 09:36:50,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:36:50,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 09:36:50,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 09:36:50,607 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 09:36:50,608 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-20 09:36:51,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:36:51,036 INFO L255 TraceCheckSpWp]: Trace formula consists of 829 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-20 09:36:51,039 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 09:36:51,251 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-20 09:36:51,251 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 09:36:51,513 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-20 09:36:51,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1200418403] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 09:36:51,514 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 09:36:51,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 41 [2024-11-20 09:36:51,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579479316] [2024-11-20 09:36:51,514 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 09:36:51,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2024-11-20 09:36:51,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:36:51,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2024-11-20 09:36:51,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=586, Invalid=1054, Unknown=0, NotChecked=0, Total=1640 [2024-11-20 09:36:51,517 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 94 [2024-11-20 09:36:51,517 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 191 transitions, 1257 flow. Second operand has 41 states, 41 states have (on average 4.878048780487805) internal successors, (200), 41 states have internal predecessors, (200), 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) [2024-11-20 09:36:51,517 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:36:51,517 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 94 [2024-11-20 09:36:51,517 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:36:53,223 INFO L124 PetriNetUnfolderBase]: 4550/7149 cut-off events. [2024-11-20 09:36:53,223 INFO L125 PetriNetUnfolderBase]: For 4824/4824 co-relation queries the response was YES. [2024-11-20 09:36:53,238 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20630 conditions, 7149 events. 4550/7149 cut-off events. For 4824/4824 co-relation queries the response was YES. Maximal size of possible extension queue 313. Compared 40324 event pairs, 3355 based on Foata normal form. 2/5829 useless extension candidates. Maximal degree in co-relation 20425. Up to 7093 conditions per place. [2024-11-20 09:36:53,253 INFO L140 encePairwiseOnDemand]: 77/94 looper letters, 132 selfloop transitions, 60 changer transitions 0/193 dead transitions. [2024-11-20 09:36:53,254 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 193 transitions, 1661 flow [2024-11-20 09:36:53,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-20 09:36:53,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2024-11-20 09:36:53,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 198 transitions. [2024-11-20 09:36:53,256 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.10531914893617021 [2024-11-20 09:36:53,256 INFO L175 Difference]: Start difference. First operand has 125 places, 191 transitions, 1257 flow. Second operand 20 states and 198 transitions. [2024-11-20 09:36:53,257 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 193 transitions, 1661 flow [2024-11-20 09:36:53,281 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 193 transitions, 1647 flow, removed 6 selfloop flow, removed 3 redundant places. [2024-11-20 09:36:53,286 INFO L231 Difference]: Finished difference. Result has 140 places, 193 transitions, 1393 flow [2024-11-20 09:36:53,286 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=1243, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=1393, PETRI_PLACES=140, PETRI_TRANSITIONS=193} [2024-11-20 09:36:53,286 INFO L277 CegarLoopForPetriNet]: 70 programPoint places, 70 predicate places. [2024-11-20 09:36:53,287 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 193 transitions, 1393 flow [2024-11-20 09:36:53,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 4.878048780487805) internal successors, (200), 41 states have internal predecessors, (200), 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) [2024-11-20 09:36:53,287 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:36:53,287 INFO L204 CegarLoopForPetriNet]: trace histogram [13, 13, 5, 5, 4, 4, 4, 4, 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] [2024-11-20 09:36:53,296 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-20 09:36:53,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-20 09:36:53,491 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-20 09:36:53,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:36:53,491 INFO L85 PathProgramCache]: Analyzing trace with hash -239019205, now seen corresponding path program 2 times [2024-11-20 09:36:53,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:36:53,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602682208] [2024-11-20 09:36:53,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:36:53,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:36:53,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:36:54,213 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2024-11-20 09:36:54,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:36:54,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602682208] [2024-11-20 09:36:54,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602682208] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:36:54,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:36:54,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 09:36:54,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133375952] [2024-11-20 09:36:54,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:36:54,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 09:36:54,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:36:54,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 09:36:54,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 09:36:54,215 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 94 [2024-11-20 09:36:54,216 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 193 transitions, 1393 flow. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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) [2024-11-20 09:36:54,216 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:36:54,216 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 94 [2024-11-20 09:36:54,216 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:36:55,924 INFO L124 PetriNetUnfolderBase]: 4716/7503 cut-off events. [2024-11-20 09:36:55,925 INFO L125 PetriNetUnfolderBase]: For 4401/4401 co-relation queries the response was YES. [2024-11-20 09:36:55,943 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21226 conditions, 7503 events. 4716/7503 cut-off events. For 4401/4401 co-relation queries the response was YES. Maximal size of possible extension queue 333. Compared 44018 event pairs, 2005 based on Foata normal form. 63/6185 useless extension candidates. Maximal degree in co-relation 20841. Up to 4093 conditions per place. [2024-11-20 09:36:55,958 INFO L140 encePairwiseOnDemand]: 81/94 looper letters, 222 selfloop transitions, 34 changer transitions 3/260 dead transitions. [2024-11-20 09:36:55,958 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 260 transitions, 2187 flow [2024-11-20 09:36:55,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 09:36:55,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 09:36:55,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 149 transitions. [2024-11-20 09:36:55,959 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5283687943262412 [2024-11-20 09:36:55,959 INFO L175 Difference]: Start difference. First operand has 140 places, 193 transitions, 1393 flow. Second operand 3 states and 149 transitions. [2024-11-20 09:36:55,959 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 260 transitions, 2187 flow [2024-11-20 09:36:55,976 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 260 transitions, 2035 flow, removed 18 selfloop flow, removed 14 redundant places. [2024-11-20 09:36:55,979 INFO L231 Difference]: Finished difference. Result has 130 places, 211 transitions, 1547 flow [2024-11-20 09:36:55,979 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=1241, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=193, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1547, PETRI_PLACES=130, PETRI_TRANSITIONS=211} [2024-11-20 09:36:55,980 INFO L277 CegarLoopForPetriNet]: 70 programPoint places, 60 predicate places. [2024-11-20 09:36:55,980 INFO L471 AbstractCegarLoop]: Abstraction has has 130 places, 211 transitions, 1547 flow [2024-11-20 09:36:55,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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) [2024-11-20 09:36:55,981 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:36:55,981 INFO L204 CegarLoopForPetriNet]: trace histogram [13, 13, 5, 5, 4, 4, 4, 4, 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] [2024-11-20 09:36:55,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-20 09:36:55,981 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-20 09:36:55,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:36:55,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1002001847, now seen corresponding path program 1 times [2024-11-20 09:36:55,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:36:55,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477447269] [2024-11-20 09:36:55,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:36:55,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:36:56,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:36:56,211 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2024-11-20 09:36:56,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:36:56,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477447269] [2024-11-20 09:36:56,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477447269] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:36:56,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:36:56,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 09:36:56,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075975675] [2024-11-20 09:36:56,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:36:56,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 09:36:56,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:36:56,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 09:36:56,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 09:36:56,214 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 94 [2024-11-20 09:36:56,214 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 211 transitions, 1547 flow. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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) [2024-11-20 09:36:56,215 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:36:56,215 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 94 [2024-11-20 09:36:56,215 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:36:57,577 INFO L124 PetriNetUnfolderBase]: 4456/7087 cut-off events. [2024-11-20 09:36:57,577 INFO L125 PetriNetUnfolderBase]: For 7922/7922 co-relation queries the response was YES. [2024-11-20 09:36:57,592 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21278 conditions, 7087 events. 4456/7087 cut-off events. For 7922/7922 co-relation queries the response was YES. Maximal size of possible extension queue 306. Compared 40726 event pairs, 2964 based on Foata normal form. 78/5829 useless extension candidates. Maximal degree in co-relation 20952. Up to 5958 conditions per place. [2024-11-20 09:36:57,604 INFO L140 encePairwiseOnDemand]: 91/94 looper letters, 234 selfloop transitions, 4 changer transitions 1/240 dead transitions. [2024-11-20 09:36:57,604 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 240 transitions, 2074 flow [2024-11-20 09:36:57,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 09:36:57,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 09:36:57,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 135 transitions. [2024-11-20 09:36:57,605 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4787234042553192 [2024-11-20 09:36:57,605 INFO L175 Difference]: Start difference. First operand has 130 places, 211 transitions, 1547 flow. Second operand 3 states and 135 transitions. [2024-11-20 09:36:57,605 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 240 transitions, 2074 flow [2024-11-20 09:36:57,627 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 240 transitions, 2026 flow, removed 8 selfloop flow, removed 1 redundant places. [2024-11-20 09:36:57,630 INFO L231 Difference]: Finished difference. Result has 132 places, 204 transitions, 1456 flow [2024-11-20 09:36:57,630 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=1442, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=204, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=200, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1456, PETRI_PLACES=132, PETRI_TRANSITIONS=204} [2024-11-20 09:36:57,630 INFO L277 CegarLoopForPetriNet]: 70 programPoint places, 62 predicate places. [2024-11-20 09:36:57,631 INFO L471 AbstractCegarLoop]: Abstraction has has 132 places, 204 transitions, 1456 flow [2024-11-20 09:36:57,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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) [2024-11-20 09:36:57,631 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:36:57,631 INFO L204 CegarLoopForPetriNet]: trace histogram [13, 13, 5, 5, 4, 4, 4, 4, 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] [2024-11-20 09:36:57,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-20 09:36:57,631 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-20 09:36:57,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:36:57,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1737112089, now seen corresponding path program 1 times [2024-11-20 09:36:57,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:36:57,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326495615] [2024-11-20 09:36:57,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:36:57,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:36:57,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:36:57,872 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2024-11-20 09:36:57,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:36:57,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326495615] [2024-11-20 09:36:57,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326495615] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:36:57,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:36:57,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 09:36:57,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191627508] [2024-11-20 09:36:57,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:36:57,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 09:36:57,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:36:57,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 09:36:57,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 09:36:57,875 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 94 [2024-11-20 09:36:57,875 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 204 transitions, 1456 flow. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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) [2024-11-20 09:36:57,875 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:36:57,875 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 94 [2024-11-20 09:36:57,875 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:36:59,307 INFO L124 PetriNetUnfolderBase]: 4498/7196 cut-off events. [2024-11-20 09:36:59,308 INFO L125 PetriNetUnfolderBase]: For 6049/6049 co-relation queries the response was YES. [2024-11-20 09:36:59,324 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21516 conditions, 7196 events. 4498/7196 cut-off events. For 6049/6049 co-relation queries the response was YES. Maximal size of possible extension queue 293. Compared 41226 event pairs, 2936 based on Foata normal form. 73/5911 useless extension candidates. Maximal degree in co-relation 21188. Up to 5962 conditions per place. [2024-11-20 09:36:59,337 INFO L140 encePairwiseOnDemand]: 91/94 looper letters, 229 selfloop transitions, 5 changer transitions 1/236 dead transitions. [2024-11-20 09:36:59,337 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 236 transitions, 2008 flow [2024-11-20 09:36:59,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 09:36:59,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 09:36:59,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 132 transitions. [2024-11-20 09:36:59,339 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.46808510638297873 [2024-11-20 09:36:59,339 INFO L175 Difference]: Start difference. First operand has 132 places, 204 transitions, 1456 flow. Second operand 3 states and 132 transitions. [2024-11-20 09:36:59,339 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 236 transitions, 2008 flow [2024-11-20 09:36:59,355 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 236 transitions, 1994 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-20 09:36:59,357 INFO L231 Difference]: Finished difference. Result has 133 places, 201 transitions, 1437 flow [2024-11-20 09:36:59,357 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=1410, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=200, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1437, PETRI_PLACES=133, PETRI_TRANSITIONS=201} [2024-11-20 09:36:59,358 INFO L277 CegarLoopForPetriNet]: 70 programPoint places, 63 predicate places. [2024-11-20 09:36:59,358 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 201 transitions, 1437 flow [2024-11-20 09:36:59,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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) [2024-11-20 09:36:59,358 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:36:59,358 INFO L204 CegarLoopForPetriNet]: trace histogram [13, 13, 5, 5, 4, 4, 4, 4, 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] [2024-11-20 09:36:59,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-20 09:36:59,358 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-20 09:36:59,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:36:59,359 INFO L85 PathProgramCache]: Analyzing trace with hash -101330679, now seen corresponding path program 1 times [2024-11-20 09:36:59,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:36:59,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564367783] [2024-11-20 09:36:59,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:36:59,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:36:59,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:36:59,885 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2024-11-20 09:36:59,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:36:59,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564367783] [2024-11-20 09:36:59,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564367783] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:36:59,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:36:59,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 09:36:59,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739991840] [2024-11-20 09:36:59,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:36:59,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 09:36:59,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:36:59,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 09:36:59,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 09:36:59,886 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 94 [2024-11-20 09:36:59,887 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 201 transitions, 1437 flow. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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) [2024-11-20 09:36:59,887 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:36:59,887 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 94 [2024-11-20 09:36:59,887 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:37:01,460 INFO L124 PetriNetUnfolderBase]: 4675/7557 cut-off events. [2024-11-20 09:37:01,461 INFO L125 PetriNetUnfolderBase]: For 6614/6614 co-relation queries the response was YES. [2024-11-20 09:37:01,481 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22597 conditions, 7557 events. 4675/7557 cut-off events. For 6614/6614 co-relation queries the response was YES. Maximal size of possible extension queue 315. Compared 44795 event pairs, 3512 based on Foata normal form. 6/6160 useless extension candidates. Maximal degree in co-relation 22268. Up to 7114 conditions per place. [2024-11-20 09:37:01,497 INFO L140 encePairwiseOnDemand]: 90/94 looper letters, 225 selfloop transitions, 6 changer transitions 10/242 dead transitions. [2024-11-20 09:37:01,497 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 242 transitions, 2066 flow [2024-11-20 09:37:01,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 09:37:01,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-20 09:37:01,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 138 transitions. [2024-11-20 09:37:01,499 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3670212765957447 [2024-11-20 09:37:01,499 INFO L175 Difference]: Start difference. First operand has 133 places, 201 transitions, 1437 flow. Second operand 4 states and 138 transitions. [2024-11-20 09:37:01,499 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 242 transitions, 2066 flow [2024-11-20 09:37:01,519 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 242 transitions, 2052 flow, removed 4 selfloop flow, removed 1 redundant places. [2024-11-20 09:37:01,522 INFO L231 Difference]: Finished difference. Result has 137 places, 201 transitions, 1452 flow [2024-11-20 09:37:01,522 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=1428, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1452, PETRI_PLACES=137, PETRI_TRANSITIONS=201} [2024-11-20 09:37:01,523 INFO L277 CegarLoopForPetriNet]: 70 programPoint places, 67 predicate places. [2024-11-20 09:37:01,523 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 201 transitions, 1452 flow [2024-11-20 09:37:01,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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) [2024-11-20 09:37:01,523 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:37:01,523 INFO L204 CegarLoopForPetriNet]: trace histogram [13, 13, 5, 5, 4, 4, 4, 4, 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] [2024-11-20 09:37:01,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-20 09:37:01,524 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-20 09:37:01,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:37:01,525 INFO L85 PathProgramCache]: Analyzing trace with hash -310640127, now seen corresponding path program 2 times [2024-11-20 09:37:01,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:37:01,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837254744] [2024-11-20 09:37:01,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:37:01,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:37:01,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:37:02,100 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2024-11-20 09:37:02,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:37:02,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837254744] [2024-11-20 09:37:02,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837254744] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:37:02,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:37:02,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 09:37:02,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359700521] [2024-11-20 09:37:02,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:37:02,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 09:37:02,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:37:02,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 09:37:02,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 09:37:02,102 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 94 [2024-11-20 09:37:02,103 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 201 transitions, 1452 flow. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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) [2024-11-20 09:37:02,103 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:37:02,103 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 94 [2024-11-20 09:37:02,103 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:37:03,721 INFO L124 PetriNetUnfolderBase]: 4829/7866 cut-off events. [2024-11-20 09:37:03,722 INFO L125 PetriNetUnfolderBase]: For 6981/6981 co-relation queries the response was YES. [2024-11-20 09:37:03,746 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23209 conditions, 7866 events. 4829/7866 cut-off events. For 6981/6981 co-relation queries the response was YES. Maximal size of possible extension queue 331. Compared 47838 event pairs, 1633 based on Foata normal form. 1/6428 useless extension candidates. Maximal degree in co-relation 23115. Up to 5092 conditions per place. [2024-11-20 09:37:03,763 INFO L140 encePairwiseOnDemand]: 77/94 looper letters, 238 selfloop transitions, 38 changer transitions 10/287 dead transitions. [2024-11-20 09:37:03,764 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 287 transitions, 2282 flow [2024-11-20 09:37:03,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 09:37:03,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 09:37:03,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 197 transitions. [2024-11-20 09:37:03,765 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.41914893617021276 [2024-11-20 09:37:03,765 INFO L175 Difference]: Start difference. First operand has 137 places, 201 transitions, 1452 flow. Second operand 5 states and 197 transitions. [2024-11-20 09:37:03,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 287 transitions, 2282 flow [2024-11-20 09:37:03,789 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 287 transitions, 2271 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-20 09:37:03,792 INFO L231 Difference]: Finished difference. Result has 140 places, 201 transitions, 1532 flow [2024-11-20 09:37:03,792 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=1444, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1532, PETRI_PLACES=140, PETRI_TRANSITIONS=201} [2024-11-20 09:37:03,792 INFO L277 CegarLoopForPetriNet]: 70 programPoint places, 70 predicate places. [2024-11-20 09:37:03,792 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 201 transitions, 1532 flow [2024-11-20 09:37:03,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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) [2024-11-20 09:37:03,793 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:37:03,793 INFO L204 CegarLoopForPetriNet]: trace histogram [13, 13, 5, 5, 4, 4, 4, 4, 2, 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] [2024-11-20 09:37:03,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-20 09:37:03,796 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-20 09:37:03,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:37:03,797 INFO L85 PathProgramCache]: Analyzing trace with hash -825460671, now seen corresponding path program 1 times [2024-11-20 09:37:03,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:37:03,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611535799] [2024-11-20 09:37:03,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:37:03,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:37:03,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:37:04,169 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2024-11-20 09:37:04,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:37:04,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611535799] [2024-11-20 09:37:04,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611535799] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:37:04,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:37:04,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 09:37:04,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977127833] [2024-11-20 09:37:04,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:37:04,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 09:37:04,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:37:04,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 09:37:04,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 09:37:04,172 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 94 [2024-11-20 09:37:04,172 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 201 transitions, 1532 flow. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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) [2024-11-20 09:37:04,172 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:37:04,172 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 94 [2024-11-20 09:37:04,172 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:37:05,910 INFO L124 PetriNetUnfolderBase]: 4782/7779 cut-off events. [2024-11-20 09:37:05,910 INFO L125 PetriNetUnfolderBase]: For 9118/9118 co-relation queries the response was YES. [2024-11-20 09:37:05,933 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23601 conditions, 7779 events. 4782/7779 cut-off events. For 9118/9118 co-relation queries the response was YES. Maximal size of possible extension queue 321. Compared 47501 event pairs, 1400 based on Foata normal form. 13/6357 useless extension candidates. Maximal degree in co-relation 23495. Up to 6790 conditions per place. [2024-11-20 09:37:05,949 INFO L140 encePairwiseOnDemand]: 79/94 looper letters, 211 selfloop transitions, 14 changer transitions 2/228 dead transitions. [2024-11-20 09:37:05,949 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 228 transitions, 2031 flow [2024-11-20 09:37:05,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 09:37:05,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 09:37:05,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 134 transitions. [2024-11-20 09:37:05,951 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.475177304964539 [2024-11-20 09:37:05,951 INFO L175 Difference]: Start difference. First operand has 140 places, 201 transitions, 1532 flow. Second operand 3 states and 134 transitions. [2024-11-20 09:37:05,951 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 228 transitions, 2031 flow [2024-11-20 09:37:05,980 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 228 transitions, 1989 flow, removed 2 selfloop flow, removed 3 redundant places. [2024-11-20 09:37:05,983 INFO L231 Difference]: Finished difference. Result has 138 places, 199 transitions, 1504 flow [2024-11-20 09:37:05,983 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=1478, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=200, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=186, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1504, PETRI_PLACES=138, PETRI_TRANSITIONS=199} [2024-11-20 09:37:05,983 INFO L277 CegarLoopForPetriNet]: 70 programPoint places, 68 predicate places. [2024-11-20 09:37:05,984 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 199 transitions, 1504 flow [2024-11-20 09:37:05,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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) [2024-11-20 09:37:05,984 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:37:05,984 INFO L204 CegarLoopForPetriNet]: trace histogram [13, 13, 5, 5, 4, 4, 4, 4, 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] [2024-11-20 09:37:05,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-20 09:37:05,984 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-20 09:37:05,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:37:05,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1436507131, now seen corresponding path program 1 times [2024-11-20 09:37:05,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:37:05,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627279390] [2024-11-20 09:37:05,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:37:05,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:37:06,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:37:06,688 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2024-11-20 09:37:06,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:37:06,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627279390] [2024-11-20 09:37:06,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627279390] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:37:06,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:37:06,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 09:37:06,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405054464] [2024-11-20 09:37:06,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:37:06,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 09:37:06,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:37:06,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 09:37:06,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 09:37:06,690 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 94 [2024-11-20 09:37:06,691 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 199 transitions, 1504 flow. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2024-11-20 09:37:06,691 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:37:06,691 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 94 [2024-11-20 09:37:06,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:37:08,126 INFO L124 PetriNetUnfolderBase]: 4820/7997 cut-off events. [2024-11-20 09:37:08,126 INFO L125 PetriNetUnfolderBase]: For 8240/8240 co-relation queries the response was YES. [2024-11-20 09:37:08,148 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24006 conditions, 7997 events. 4820/7997 cut-off events. For 8240/8240 co-relation queries the response was YES. Maximal size of possible extension queue 344. Compared 50243 event pairs, 2367 based on Foata normal form. 100/6695 useless extension candidates. Maximal degree in co-relation 23672. Up to 4019 conditions per place. [2024-11-20 09:37:08,163 INFO L140 encePairwiseOnDemand]: 84/94 looper letters, 213 selfloop transitions, 26 changer transitions 7/247 dead transitions. [2024-11-20 09:37:08,163 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 247 transitions, 2148 flow [2024-11-20 09:37:08,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 09:37:08,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 09:37:08,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 143 transitions. [2024-11-20 09:37:08,164 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5070921985815603 [2024-11-20 09:37:08,165 INFO L175 Difference]: Start difference. First operand has 138 places, 199 transitions, 1504 flow. Second operand 3 states and 143 transitions. [2024-11-20 09:37:08,165 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 247 transitions, 2148 flow [2024-11-20 09:37:08,194 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 247 transitions, 2120 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 09:37:08,196 INFO L231 Difference]: Finished difference. Result has 139 places, 201 transitions, 1609 flow [2024-11-20 09:37:08,197 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=1434, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=195, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1609, PETRI_PLACES=139, PETRI_TRANSITIONS=201} [2024-11-20 09:37:08,197 INFO L277 CegarLoopForPetriNet]: 70 programPoint places, 69 predicate places. [2024-11-20 09:37:08,197 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 201 transitions, 1609 flow [2024-11-20 09:37:08,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2024-11-20 09:37:08,197 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:37:08,197 INFO L204 CegarLoopForPetriNet]: trace histogram [13, 13, 5, 5, 4, 4, 4, 4, 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] [2024-11-20 09:37:08,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-20 09:37:08,198 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-20 09:37:08,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:37:08,198 INFO L85 PathProgramCache]: Analyzing trace with hash -1883375367, now seen corresponding path program 2 times [2024-11-20 09:37:08,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:37:08,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343256309] [2024-11-20 09:37:08,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:37:08,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:37:08,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:37:08,880 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2024-11-20 09:37:08,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:37:08,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343256309] [2024-11-20 09:37:08,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343256309] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:37:08,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:37:08,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 09:37:08,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130000126] [2024-11-20 09:37:08,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:37:08,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 09:37:08,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:37:08,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 09:37:08,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 09:37:08,882 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 94 [2024-11-20 09:37:08,882 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 201 transitions, 1609 flow. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2024-11-20 09:37:08,882 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:37:08,883 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 94 [2024-11-20 09:37:08,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:37:10,278 INFO L124 PetriNetUnfolderBase]: 4656/7709 cut-off events. [2024-11-20 09:37:10,278 INFO L125 PetriNetUnfolderBase]: For 9533/9533 co-relation queries the response was YES. [2024-11-20 09:37:10,304 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23530 conditions, 7709 events. 4656/7709 cut-off events. For 9533/9533 co-relation queries the response was YES. Maximal size of possible extension queue 336. Compared 47692 event pairs, 3361 based on Foata normal form. 54/6379 useless extension candidates. Maximal degree in co-relation 23197. Up to 6591 conditions per place. [2024-11-20 09:37:10,320 INFO L140 encePairwiseOnDemand]: 84/94 looper letters, 210 selfloop transitions, 12 changer transitions 8/231 dead transitions. [2024-11-20 09:37:10,320 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 231 transitions, 2033 flow [2024-11-20 09:37:10,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 09:37:10,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 09:37:10,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 143 transitions. [2024-11-20 09:37:10,321 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5070921985815603 [2024-11-20 09:37:10,321 INFO L175 Difference]: Start difference. First operand has 139 places, 201 transitions, 1609 flow. Second operand 3 states and 143 transitions. [2024-11-20 09:37:10,321 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 231 transitions, 2033 flow [2024-11-20 09:37:10,354 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 231 transitions, 2017 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 09:37:10,356 INFO L231 Difference]: Finished difference. Result has 140 places, 187 transitions, 1461 flow [2024-11-20 09:37:10,356 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=1437, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1461, PETRI_PLACES=140, PETRI_TRANSITIONS=187} [2024-11-20 09:37:10,356 INFO L277 CegarLoopForPetriNet]: 70 programPoint places, 70 predicate places. [2024-11-20 09:37:10,356 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 187 transitions, 1461 flow [2024-11-20 09:37:10,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2024-11-20 09:37:10,357 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:37:10,357 INFO L204 CegarLoopForPetriNet]: trace histogram [13, 13, 5, 5, 4, 4, 4, 4, 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] [2024-11-20 09:37:10,357 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-20 09:37:10,357 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-20 09:37:10,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:37:10,357 INFO L85 PathProgramCache]: Analyzing trace with hash -526379136, now seen corresponding path program 1 times [2024-11-20 09:37:10,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:37:10,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701148411] [2024-11-20 09:37:10,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:37:10,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:37:10,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:37:11,000 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2024-11-20 09:37:11,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:37:11,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701148411] [2024-11-20 09:37:11,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701148411] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:37:11,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:37:11,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 09:37:11,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192175093] [2024-11-20 09:37:11,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:37:11,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 09:37:11,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:37:11,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 09:37:11,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 09:37:11,003 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 94 [2024-11-20 09:37:11,003 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 187 transitions, 1461 flow. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2024-11-20 09:37:11,003 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:37:11,003 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 94 [2024-11-20 09:37:11,003 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:37:12,525 INFO L124 PetriNetUnfolderBase]: 4937/8300 cut-off events. [2024-11-20 09:37:12,526 INFO L125 PetriNetUnfolderBase]: For 8724/8724 co-relation queries the response was YES. [2024-11-20 09:37:12,548 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25034 conditions, 8300 events. 4937/8300 cut-off events. For 8724/8724 co-relation queries the response was YES. Maximal size of possible extension queue 371. Compared 53496 event pairs, 3631 based on Foata normal form. 27/6867 useless extension candidates. Maximal degree in co-relation 24701. Up to 6985 conditions per place. [2024-11-20 09:37:12,562 INFO L140 encePairwiseOnDemand]: 84/94 looper letters, 213 selfloop transitions, 16 changer transitions 13/243 dead transitions. [2024-11-20 09:37:12,562 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 243 transitions, 2121 flow [2024-11-20 09:37:12,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 09:37:12,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 09:37:12,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 151 transitions. [2024-11-20 09:37:12,564 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5354609929078015 [2024-11-20 09:37:12,564 INFO L175 Difference]: Start difference. First operand has 140 places, 187 transitions, 1461 flow. Second operand 3 states and 151 transitions. [2024-11-20 09:37:12,564 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 243 transitions, 2121 flow [2024-11-20 09:37:12,592 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 243 transitions, 2109 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 09:37:12,594 INFO L231 Difference]: Finished difference. Result has 143 places, 185 transitions, 1497 flow [2024-11-20 09:37:12,594 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=1433, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1497, PETRI_PLACES=143, PETRI_TRANSITIONS=185} [2024-11-20 09:37:12,595 INFO L277 CegarLoopForPetriNet]: 70 programPoint places, 73 predicate places. [2024-11-20 09:37:12,595 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 185 transitions, 1497 flow [2024-11-20 09:37:12,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2024-11-20 09:37:12,595 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:37:12,595 INFO L204 CegarLoopForPetriNet]: trace histogram [13, 13, 5, 5, 4, 4, 4, 4, 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] [2024-11-20 09:37:12,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-20 09:37:12,595 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-20 09:37:12,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:37:12,595 INFO L85 PathProgramCache]: Analyzing trace with hash 609915800, now seen corresponding path program 2 times [2024-11-20 09:37:12,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:37:12,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838553029] [2024-11-20 09:37:12,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:37:12,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:37:12,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:37:13,247 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2024-11-20 09:37:13,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:37:13,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838553029] [2024-11-20 09:37:13,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838553029] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:37:13,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:37:13,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 09:37:13,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979659201] [2024-11-20 09:37:13,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:37:13,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 09:37:13,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:37:13,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 09:37:13,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 09:37:13,249 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 94 [2024-11-20 09:37:13,250 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 185 transitions, 1497 flow. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2024-11-20 09:37:13,250 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:37:13,250 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 94 [2024-11-20 09:37:13,250 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:37:14,673 INFO L124 PetriNetUnfolderBase]: 4629/7767 cut-off events. [2024-11-20 09:37:14,674 INFO L125 PetriNetUnfolderBase]: For 9230/9230 co-relation queries the response was YES. [2024-11-20 09:37:14,693 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23493 conditions, 7767 events. 4629/7767 cut-off events. For 9230/9230 co-relation queries the response was YES. Maximal size of possible extension queue 346. Compared 49448 event pairs, 2173 based on Foata normal form. 59/6424 useless extension candidates. Maximal degree in co-relation 23159. Up to 4129 conditions per place. [2024-11-20 09:37:14,703 INFO L140 encePairwiseOnDemand]: 84/94 looper letters, 201 selfloop transitions, 15 changer transitions 8/225 dead transitions. [2024-11-20 09:37:14,703 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 225 transitions, 1998 flow [2024-11-20 09:37:14,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 09:37:14,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 09:37:14,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 143 transitions. [2024-11-20 09:37:14,704 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5070921985815603 [2024-11-20 09:37:14,704 INFO L175 Difference]: Start difference. First operand has 143 places, 185 transitions, 1497 flow. Second operand 3 states and 143 transitions. [2024-11-20 09:37:14,705 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 225 transitions, 1998 flow [2024-11-20 09:37:14,737 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 225 transitions, 1980 flow, removed 2 selfloop flow, removed 3 redundant places. [2024-11-20 09:37:14,739 INFO L231 Difference]: Finished difference. Result has 142 places, 178 transitions, 1401 flow [2024-11-20 09:37:14,739 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=1389, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=164, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1401, PETRI_PLACES=142, PETRI_TRANSITIONS=178} [2024-11-20 09:37:14,739 INFO L277 CegarLoopForPetriNet]: 70 programPoint places, 72 predicate places. [2024-11-20 09:37:14,739 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 178 transitions, 1401 flow [2024-11-20 09:37:14,739 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2024-11-20 09:37:14,739 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:37:14,740 INFO L204 CegarLoopForPetriNet]: trace histogram [13, 13, 5, 5, 4, 4, 4, 4, 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] [2024-11-20 09:37:14,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-20 09:37:14,740 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-20 09:37:14,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:37:14,740 INFO L85 PathProgramCache]: Analyzing trace with hash 495274041, now seen corresponding path program 1 times [2024-11-20 09:37:14,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:37:14,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95143086] [2024-11-20 09:37:14,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:37:14,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:37:14,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:37:14,836 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2024-11-20 09:37:14,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:37:14,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95143086] [2024-11-20 09:37:14,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95143086] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:37:14,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:37:14,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 09:37:14,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57295592] [2024-11-20 09:37:14,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:37:14,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 09:37:14,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:37:14,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 09:37:14,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 09:37:14,838 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 94 [2024-11-20 09:37:14,838 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 178 transitions, 1401 flow. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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) [2024-11-20 09:37:14,838 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:37:14,839 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 94 [2024-11-20 09:37:14,839 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:37:16,158 INFO L124 PetriNetUnfolderBase]: 4468/7504 cut-off events. [2024-11-20 09:37:16,159 INFO L125 PetriNetUnfolderBase]: For 8008/8008 co-relation queries the response was YES. [2024-11-20 09:37:16,178 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22587 conditions, 7504 events. 4468/7504 cut-off events. For 8008/8008 co-relation queries the response was YES. Maximal size of possible extension queue 329. Compared 47294 event pairs, 2547 based on Foata normal form. 41/6173 useless extension candidates. Maximal degree in co-relation 22255. Up to 4515 conditions per place. [2024-11-20 09:37:16,188 INFO L140 encePairwiseOnDemand]: 88/94 looper letters, 197 selfloop transitions, 7 changer transitions 16/221 dead transitions. [2024-11-20 09:37:16,188 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 221 transitions, 1934 flow [2024-11-20 09:37:16,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 09:37:16,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 09:37:16,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 138 transitions. [2024-11-20 09:37:16,189 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.48936170212765956 [2024-11-20 09:37:16,189 INFO L175 Difference]: Start difference. First operand has 142 places, 178 transitions, 1401 flow. Second operand 3 states and 138 transitions. [2024-11-20 09:37:16,189 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 221 transitions, 1934 flow [2024-11-20 09:37:16,211 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 221 transitions, 1906 flow, removed 4 selfloop flow, removed 3 redundant places. [2024-11-20 09:37:16,213 INFO L231 Difference]: Finished difference. Result has 142 places, 175 transitions, 1346 flow [2024-11-20 09:37:16,213 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=1317, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1346, PETRI_PLACES=142, PETRI_TRANSITIONS=175} [2024-11-20 09:37:16,213 INFO L277 CegarLoopForPetriNet]: 70 programPoint places, 72 predicate places. [2024-11-20 09:37:16,213 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 175 transitions, 1346 flow [2024-11-20 09:37:16,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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) [2024-11-20 09:37:16,214 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:37:16,214 INFO L204 CegarLoopForPetriNet]: trace histogram [13, 13, 5, 5, 4, 4, 4, 4, 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] [2024-11-20 09:37:16,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-20 09:37:16,214 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-20 09:37:16,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:37:16,214 INFO L85 PathProgramCache]: Analyzing trace with hash 455528441, now seen corresponding path program 2 times [2024-11-20 09:37:16,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:37:16,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676512858] [2024-11-20 09:37:16,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:37:16,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:37:16,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:37:16,319 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2024-11-20 09:37:16,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:37:16,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676512858] [2024-11-20 09:37:16,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676512858] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:37:16,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:37:16,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 09:37:16,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542798479] [2024-11-20 09:37:16,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:37:16,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 09:37:16,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:37:16,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 09:37:16,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 09:37:16,321 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 94 [2024-11-20 09:37:16,321 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 175 transitions, 1346 flow. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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) [2024-11-20 09:37:16,321 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:37:16,321 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 94 [2024-11-20 09:37:16,321 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:37:17,860 INFO L124 PetriNetUnfolderBase]: 4419/7410 cut-off events. [2024-11-20 09:37:17,860 INFO L125 PetriNetUnfolderBase]: For 6203/6203 co-relation queries the response was YES. [2024-11-20 09:37:17,880 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22505 conditions, 7410 events. 4419/7410 cut-off events. For 6203/6203 co-relation queries the response was YES. Maximal size of possible extension queue 325. Compared 46189 event pairs, 3676 based on Foata normal form. 4/6050 useless extension candidates. Maximal degree in co-relation 22172. Up to 7043 conditions per place. [2024-11-20 09:37:17,894 INFO L140 encePairwiseOnDemand]: 91/94 looper letters, 186 selfloop transitions, 4 changer transitions 13/204 dead transitions. [2024-11-20 09:37:17,894 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 204 transitions, 1834 flow [2024-11-20 09:37:17,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 09:37:17,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 09:37:17,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 120 transitions. [2024-11-20 09:37:17,895 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.425531914893617 [2024-11-20 09:37:17,895 INFO L175 Difference]: Start difference. First operand has 142 places, 175 transitions, 1346 flow. Second operand 3 states and 120 transitions. [2024-11-20 09:37:17,895 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 204 transitions, 1834 flow [2024-11-20 09:37:17,917 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 204 transitions, 1828 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 09:37:17,919 INFO L231 Difference]: Finished difference. Result has 143 places, 173 transitions, 1322 flow [2024-11-20 09:37:17,920 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=1331, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1322, PETRI_PLACES=143, PETRI_TRANSITIONS=173} [2024-11-20 09:37:17,920 INFO L277 CegarLoopForPetriNet]: 70 programPoint places, 73 predicate places. [2024-11-20 09:37:17,920 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 173 transitions, 1322 flow [2024-11-20 09:37:17,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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) [2024-11-20 09:37:17,920 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:37:17,920 INFO L204 CegarLoopForPetriNet]: trace histogram [13, 13, 5, 5, 4, 4, 4, 4, 2, 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] [2024-11-20 09:37:17,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-20 09:37:17,921 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-20 09:37:17,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:37:17,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1624082221, now seen corresponding path program 1 times [2024-11-20 09:37:17,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:37:17,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287862641] [2024-11-20 09:37:17,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:37:17,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:37:18,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:37:18,463 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2024-11-20 09:37:18,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:37:18,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287862641] [2024-11-20 09:37:18,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287862641] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:37:18,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:37:18,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 09:37:18,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489466350] [2024-11-20 09:37:18,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:37:18,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 09:37:18,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:37:18,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 09:37:18,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 09:37:18,467 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 94 [2024-11-20 09:37:18,467 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 173 transitions, 1322 flow. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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) [2024-11-20 09:37:18,468 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:37:18,468 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 94 [2024-11-20 09:37:18,468 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:37:19,342 INFO L124 PetriNetUnfolderBase]: 3204/5377 cut-off events. [2024-11-20 09:37:19,342 INFO L125 PetriNetUnfolderBase]: For 5449/5449 co-relation queries the response was YES. [2024-11-20 09:37:19,358 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15318 conditions, 5377 events. 3204/5377 cut-off events. For 5449/5449 co-relation queries the response was YES. Maximal size of possible extension queue 229. Compared 31728 event pairs, 1984 based on Foata normal form. 205/4453 useless extension candidates. Maximal degree in co-relation 15284. Up to 3432 conditions per place. [2024-11-20 09:37:19,365 INFO L140 encePairwiseOnDemand]: 82/94 looper letters, 156 selfloop transitions, 2 changer transitions 24/183 dead transitions. [2024-11-20 09:37:19,365 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 183 transitions, 1442 flow [2024-11-20 09:37:19,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 09:37:19,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 09:37:19,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 131 transitions. [2024-11-20 09:37:19,366 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4645390070921986 [2024-11-20 09:37:19,366 INFO L175 Difference]: Start difference. First operand has 143 places, 173 transitions, 1322 flow. Second operand 3 states and 131 transitions. [2024-11-20 09:37:19,366 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 183 transitions, 1442 flow [2024-11-20 09:37:19,383 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 183 transitions, 1375 flow, removed 9 selfloop flow, removed 5 redundant places. [2024-11-20 09:37:19,384 INFO L231 Difference]: Finished difference. Result has 135 places, 147 transitions, 940 flow [2024-11-20 09:37:19,384 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=944, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=940, PETRI_PLACES=135, PETRI_TRANSITIONS=147} [2024-11-20 09:37:19,385 INFO L277 CegarLoopForPetriNet]: 70 programPoint places, 65 predicate places. [2024-11-20 09:37:19,385 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 147 transitions, 940 flow [2024-11-20 09:37:19,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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) [2024-11-20 09:37:19,385 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:37:19,385 INFO L204 CegarLoopForPetriNet]: trace histogram [13, 13, 5, 5, 4, 4, 4, 4, 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] [2024-11-20 09:37:19,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-20 09:37:19,385 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-20 09:37:19,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:37:19,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1279691771, now seen corresponding path program 1 times [2024-11-20 09:37:19,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:37:19,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864188763] [2024-11-20 09:37:19,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:37:19,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:37:19,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:37:19,605 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2024-11-20 09:37:19,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:37:19,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864188763] [2024-11-20 09:37:19,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864188763] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:37:19,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:37:19,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 09:37:19,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837917704] [2024-11-20 09:37:19,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:37:19,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 09:37:19,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:37:19,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 09:37:19,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-20 09:37:19,606 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 94 [2024-11-20 09:37:19,606 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 147 transitions, 940 flow. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2024-11-20 09:37:19,606 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:37:19,606 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 94 [2024-11-20 09:37:19,606 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:37:20,355 INFO L124 PetriNetUnfolderBase]: 2749/4633 cut-off events. [2024-11-20 09:37:20,356 INFO L125 PetriNetUnfolderBase]: For 2451/2451 co-relation queries the response was YES. [2024-11-20 09:37:20,370 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12198 conditions, 4633 events. 2749/4633 cut-off events. For 2451/2451 co-relation queries the response was YES. Maximal size of possible extension queue 194. Compared 26188 event pairs, 2334 based on Foata normal form. 1/3869 useless extension candidates. Maximal degree in co-relation 12168. Up to 4453 conditions per place. [2024-11-20 09:37:20,376 INFO L140 encePairwiseOnDemand]: 91/94 looper letters, 149 selfloop transitions, 1 changer transitions 19/170 dead transitions. [2024-11-20 09:37:20,376 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 170 transitions, 1329 flow [2024-11-20 09:37:20,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 09:37:20,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-20 09:37:20,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 111 transitions. [2024-11-20 09:37:20,377 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.29521276595744683 [2024-11-20 09:37:20,377 INFO L175 Difference]: Start difference. First operand has 135 places, 147 transitions, 940 flow. Second operand 4 states and 111 transitions. [2024-11-20 09:37:20,377 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 170 transitions, 1329 flow [2024-11-20 09:37:20,384 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 170 transitions, 1327 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 09:37:20,386 INFO L231 Difference]: Finished difference. Result has 134 places, 145 transitions, 920 flow [2024-11-20 09:37:20,386 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=938, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=920, PETRI_PLACES=134, PETRI_TRANSITIONS=145} [2024-11-20 09:37:20,386 INFO L277 CegarLoopForPetriNet]: 70 programPoint places, 64 predicate places. [2024-11-20 09:37:20,387 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 145 transitions, 920 flow [2024-11-20 09:37:20,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2024-11-20 09:37:20,387 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:37:20,387 INFO L204 CegarLoopForPetriNet]: trace histogram [13, 13, 5, 5, 4, 4, 4, 4, 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] [2024-11-20 09:37:20,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-20 09:37:20,387 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-20 09:37:20,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:37:20,388 INFO L85 PathProgramCache]: Analyzing trace with hash -253074113, now seen corresponding path program 2 times [2024-11-20 09:37:20,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:37:20,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640080041] [2024-11-20 09:37:20,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:37:20,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:37:20,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:37:20,568 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2024-11-20 09:37:20,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:37:20,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640080041] [2024-11-20 09:37:20,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640080041] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:37:20,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:37:20,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 09:37:20,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002069977] [2024-11-20 09:37:20,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:37:20,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 09:37:20,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:37:20,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 09:37:20,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-20 09:37:20,569 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 94 [2024-11-20 09:37:20,569 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 145 transitions, 920 flow. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2024-11-20 09:37:20,569 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:37:20,570 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 94 [2024-11-20 09:37:20,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:37:21,311 INFO L124 PetriNetUnfolderBase]: 2663/4475 cut-off events. [2024-11-20 09:37:21,311 INFO L125 PetriNetUnfolderBase]: For 2235/2235 co-relation queries the response was YES. [2024-11-20 09:37:21,324 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11701 conditions, 4475 events. 2663/4475 cut-off events. For 2235/2235 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 24982 event pairs, 2272 based on Foata normal form. 1/3726 useless extension candidates. Maximal degree in co-relation 11670. Up to 4347 conditions per place. [2024-11-20 09:37:21,330 INFO L140 encePairwiseOnDemand]: 91/94 looper letters, 139 selfloop transitions, 0 changer transitions 22/162 dead transitions. [2024-11-20 09:37:21,330 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 162 transitions, 1278 flow [2024-11-20 09:37:21,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 09:37:21,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-20 09:37:21,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 104 transitions. [2024-11-20 09:37:21,331 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.2765957446808511 [2024-11-20 09:37:21,331 INFO L175 Difference]: Start difference. First operand has 134 places, 145 transitions, 920 flow. Second operand 4 states and 104 transitions. [2024-11-20 09:37:21,331 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 162 transitions, 1278 flow [2024-11-20 09:37:21,338 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 162 transitions, 1275 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-20 09:37:21,339 INFO L231 Difference]: Finished difference. Result has 135 places, 140 transitions, 890 flow [2024-11-20 09:37:21,339 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=917, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=890, PETRI_PLACES=135, PETRI_TRANSITIONS=140} [2024-11-20 09:37:21,339 INFO L277 CegarLoopForPetriNet]: 70 programPoint places, 65 predicate places. [2024-11-20 09:37:21,340 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 140 transitions, 890 flow [2024-11-20 09:37:21,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2024-11-20 09:37:21,340 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:37:21,340 INFO L204 CegarLoopForPetriNet]: trace histogram [13, 13, 5, 5, 4, 4, 4, 4, 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] [2024-11-20 09:37:21,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-20 09:37:21,340 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-20 09:37:21,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:37:21,340 INFO L85 PathProgramCache]: Analyzing trace with hash 954372552, now seen corresponding path program 1 times [2024-11-20 09:37:21,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:37:21,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645244834] [2024-11-20 09:37:21,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:37:21,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:37:21,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:37:21,543 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2024-11-20 09:37:21,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:37:21,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645244834] [2024-11-20 09:37:21,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645244834] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:37:21,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:37:21,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 09:37:21,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109216835] [2024-11-20 09:37:21,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:37:21,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 09:37:21,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:37:21,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 09:37:21,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-20 09:37:21,545 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 94 [2024-11-20 09:37:21,545 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 140 transitions, 890 flow. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2024-11-20 09:37:21,545 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:37:21,545 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 94 [2024-11-20 09:37:21,545 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:37:22,227 INFO L124 PetriNetUnfolderBase]: 2287/3854 cut-off events. [2024-11-20 09:37:22,227 INFO L125 PetriNetUnfolderBase]: For 1952/1952 co-relation queries the response was YES. [2024-11-20 09:37:22,237 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10079 conditions, 3854 events. 2287/3854 cut-off events. For 1952/1952 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 20675 event pairs, 1901 based on Foata normal form. 1/3290 useless extension candidates. Maximal degree in co-relation 10048. Up to 3687 conditions per place. [2024-11-20 09:37:22,242 INFO L140 encePairwiseOnDemand]: 91/94 looper letters, 142 selfloop transitions, 1 changer transitions 18/162 dead transitions. [2024-11-20 09:37:22,243 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 162 transitions, 1263 flow [2024-11-20 09:37:22,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 09:37:22,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-20 09:37:22,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 105 transitions. [2024-11-20 09:37:22,243 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.27925531914893614 [2024-11-20 09:37:22,243 INFO L175 Difference]: Start difference. First operand has 135 places, 140 transitions, 890 flow. Second operand 4 states and 105 transitions. [2024-11-20 09:37:22,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 162 transitions, 1263 flow [2024-11-20 09:37:22,249 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 162 transitions, 1255 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-20 09:37:22,250 INFO L231 Difference]: Finished difference. Result has 130 places, 138 transitions, 867 flow [2024-11-20 09:37:22,251 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=884, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=867, PETRI_PLACES=130, PETRI_TRANSITIONS=138} [2024-11-20 09:37:22,251 INFO L277 CegarLoopForPetriNet]: 70 programPoint places, 60 predicate places. [2024-11-20 09:37:22,251 INFO L471 AbstractCegarLoop]: Abstraction has has 130 places, 138 transitions, 867 flow [2024-11-20 09:37:22,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2024-11-20 09:37:22,251 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:37:22,251 INFO L204 CegarLoopForPetriNet]: trace histogram [13, 13, 5, 5, 4, 4, 4, 4, 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] [2024-11-20 09:37:22,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-20 09:37:22,251 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-20 09:37:22,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:37:22,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1710011116, now seen corresponding path program 2 times [2024-11-20 09:37:22,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:37:22,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688972293] [2024-11-20 09:37:22,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:37:22,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:37:22,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:37:22,467 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2024-11-20 09:37:22,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:37:22,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688972293] [2024-11-20 09:37:22,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688972293] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:37:22,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:37:22,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 09:37:22,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959350681] [2024-11-20 09:37:22,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:37:22,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 09:37:22,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:37:22,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 09:37:22,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-20 09:37:22,470 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 94 [2024-11-20 09:37:22,471 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 138 transitions, 867 flow. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2024-11-20 09:37:22,471 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:37:22,471 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 94 [2024-11-20 09:37:22,471 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:37:23,148 INFO L124 PetriNetUnfolderBase]: 2208/3708 cut-off events. [2024-11-20 09:37:23,149 INFO L125 PetriNetUnfolderBase]: For 1511/1511 co-relation queries the response was YES. [2024-11-20 09:37:23,164 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9581 conditions, 3708 events. 2208/3708 cut-off events. For 1511/1511 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 19568 event pairs, 1851 based on Foata normal form. 1/3154 useless extension candidates. Maximal degree in co-relation 9550. Up to 3601 conditions per place. [2024-11-20 09:37:23,169 INFO L140 encePairwiseOnDemand]: 91/94 looper letters, 128 selfloop transitions, 0 changer transitions 24/153 dead transitions. [2024-11-20 09:37:23,169 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 153 transitions, 1203 flow [2024-11-20 09:37:23,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 09:37:23,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-20 09:37:23,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 97 transitions. [2024-11-20 09:37:23,170 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.2579787234042553 [2024-11-20 09:37:23,170 INFO L175 Difference]: Start difference. First operand has 130 places, 138 transitions, 867 flow. Second operand 4 states and 97 transitions. [2024-11-20 09:37:23,170 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 153 transitions, 1203 flow [2024-11-20 09:37:23,176 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 153 transitions, 1198 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-20 09:37:23,177 INFO L231 Difference]: Finished difference. Result has 131 places, 129 transitions, 828 flow [2024-11-20 09:37:23,177 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=862, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=828, PETRI_PLACES=131, PETRI_TRANSITIONS=129} [2024-11-20 09:37:23,177 INFO L277 CegarLoopForPetriNet]: 70 programPoint places, 61 predicate places. [2024-11-20 09:37:23,177 INFO L471 AbstractCegarLoop]: Abstraction has has 131 places, 129 transitions, 828 flow [2024-11-20 09:37:23,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2024-11-20 09:37:23,178 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:37:23,178 INFO L204 CegarLoopForPetriNet]: trace histogram [13, 13, 5, 5, 4, 4, 4, 4, 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] [2024-11-20 09:37:23,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-20 09:37:23,178 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-20 09:37:23,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:37:23,178 INFO L85 PathProgramCache]: Analyzing trace with hash 698782065, now seen corresponding path program 1 times [2024-11-20 09:37:23,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:37:23,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525648569] [2024-11-20 09:37:23,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:37:23,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:37:23,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:37:23,375 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2024-11-20 09:37:23,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:37:23,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525648569] [2024-11-20 09:37:23,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525648569] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:37:23,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:37:23,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 09:37:23,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093556201] [2024-11-20 09:37:23,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:37:23,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 09:37:23,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:37:23,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 09:37:23,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 09:37:23,378 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 94 [2024-11-20 09:37:23,378 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 129 transitions, 828 flow. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) [2024-11-20 09:37:23,378 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:37:23,378 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 94 [2024-11-20 09:37:23,378 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:37:23,882 INFO L124 PetriNetUnfolderBase]: 1491/2542 cut-off events. [2024-11-20 09:37:23,882 INFO L125 PetriNetUnfolderBase]: For 1085/1085 co-relation queries the response was YES. [2024-11-20 09:37:23,889 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6623 conditions, 2542 events. 1491/2542 cut-off events. For 1085/1085 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 12107 event pairs, 1072 based on Foata normal form. 34/2221 useless extension candidates. Maximal degree in co-relation 6592. Up to 2096 conditions per place. [2024-11-20 09:37:23,892 INFO L140 encePairwiseOnDemand]: 91/94 looper letters, 143 selfloop transitions, 3 changer transitions 2/149 dead transitions. [2024-11-20 09:37:23,892 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 149 transitions, 1167 flow [2024-11-20 09:37:23,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 09:37:23,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 09:37:23,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 93 transitions. [2024-11-20 09:37:23,893 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.32978723404255317 [2024-11-20 09:37:23,893 INFO L175 Difference]: Start difference. First operand has 131 places, 129 transitions, 828 flow. Second operand 3 states and 93 transitions. [2024-11-20 09:37:23,893 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 149 transitions, 1167 flow [2024-11-20 09:37:23,897 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 149 transitions, 1155 flow, removed 4 selfloop flow, removed 3 redundant places. [2024-11-20 09:37:23,898 INFO L231 Difference]: Finished difference. Result has 118 places, 127 transitions, 812 flow [2024-11-20 09:37:23,898 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=806, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=812, PETRI_PLACES=118, PETRI_TRANSITIONS=127} [2024-11-20 09:37:23,899 INFO L277 CegarLoopForPetriNet]: 70 programPoint places, 48 predicate places. [2024-11-20 09:37:23,899 INFO L471 AbstractCegarLoop]: Abstraction has has 118 places, 127 transitions, 812 flow [2024-11-20 09:37:23,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) [2024-11-20 09:37:23,899 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:37:23,899 INFO L204 CegarLoopForPetriNet]: trace histogram [13, 13, 5, 5, 4, 4, 4, 4, 2, 2, 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] [2024-11-20 09:37:23,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-20 09:37:23,900 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-20 09:37:23,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:37:23,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1582672416, now seen corresponding path program 1 times [2024-11-20 09:37:23,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:37:23,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540505830] [2024-11-20 09:37:23,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:37:23,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:37:24,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:37:30,900 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2024-11-20 09:37:30,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:37:30,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540505830] [2024-11-20 09:37:30,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540505830] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 09:37:30,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1666235068] [2024-11-20 09:37:30,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:37:30,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 09:37:30,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 09:37:30,902 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 09:37:30,903 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-20 09:37:31,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:37:31,426 INFO L255 TraceCheckSpWp]: Trace formula consists of 860 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-20 09:37:31,433 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 09:37:35,340 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 09:37:35,341 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 17 select indices, 17 select index equivalence classes, 0 disjoint index pairs (out of 136 index pairs), introduced 17 new quantified variables, introduced 136 case distinctions, treesize of input 265 treesize of output 1810