./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label07.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fb280a-538c-480b-b649-828625dea274/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fb280a-538c-480b-b649-828625dea274/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fb280a-538c-480b-b649-828625dea274/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fb280a-538c-480b-b649-828625dea274/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label07.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fb280a-538c-480b-b649-828625dea274/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fb280a-538c-480b-b649-828625dea274/bin/uautomizer-verify-qhAvR1uOyd --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 4d62395951f99c0a3c43b690318a4d5480f589d72fceef9ee8ca741a4c7ef736 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 16:12:19,327 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 16:12:19,401 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fb280a-538c-480b-b649-828625dea274/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 16:12:19,407 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 16:12:19,407 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 16:12:19,435 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 16:12:19,436 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 16:12:19,436 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 16:12:19,437 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 16:12:19,437 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 16:12:19,437 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 16:12:19,438 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 16:12:19,438 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 16:12:19,438 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 16:12:19,438 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 16:12:19,439 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 16:12:19,439 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 16:12:19,439 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 16:12:19,439 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 16:12:19,440 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 16:12:19,440 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 16:12:19,440 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 16:12:19,440 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 16:12:19,440 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 16:12:19,440 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 16:12:19,441 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 16:12:19,441 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 16:12:19,441 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 16:12:19,441 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 16:12:19,442 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 16:12:19,442 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 16:12:19,442 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 16:12:19,442 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:12:19,442 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 16:12:19,442 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 16:12:19,442 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 16:12:19,442 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 16:12:19,442 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 16:12:19,443 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 16:12:19,443 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 16:12:19,443 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 16:12:19,443 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 16:12:19,443 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fb280a-538c-480b-b649-828625dea274/bin/uautomizer-verify-qhAvR1uOyd 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 -> 4d62395951f99c0a3c43b690318a4d5480f589d72fceef9ee8ca741a4c7ef736 [2024-11-13 16:12:19,845 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 16:12:19,854 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 16:12:19,858 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 16:12:19,859 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 16:12:19,859 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 16:12:19,861 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fb280a-538c-480b-b649-828625dea274/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label07.c Unable to find full path for "g++" [2024-11-13 16:12:22,064 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 16:12:22,085 ERROR L? ?]: Error during toolchain job processing: java.lang.NullPointerException: Cannot invoke "String.equalsIgnoreCase(String)" because "kindStr" is null 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) [2024-11-13 16:12:22,755 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 16:12:22,756 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fb280a-538c-480b-b649-828625dea274/sv-benchmarks/c/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label07.c [2024-11-13 16:12:22,792 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fb280a-538c-480b-b649-828625dea274/bin/uautomizer-verify-qhAvR1uOyd/data/ea130465c/069040926087411bac81285faa8e9693/FLAG43a9e8c8d [2024-11-13 16:12:22,813 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fb280a-538c-480b-b649-828625dea274/bin/uautomizer-verify-qhAvR1uOyd/data/ea130465c/069040926087411bac81285faa8e9693 [2024-11-13 16:12:22,817 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 16:12:22,819 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 16:12:22,822 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 16:12:22,823 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 16:12:22,833 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 16:12:22,834 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:12:22" (1/1) ... [2024-11-13 16:12:22,835 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3898e877 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:12:22, skipping insertion in model container [2024-11-13 16:12:22,835 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:12:22" (1/1) ... [2024-11-13 16:12:22,998 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 16:12:23,492 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fb280a-538c-480b-b649-828625dea274/sv-benchmarks/c/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label07.c[26888,26901] [2024-11-13 16:12:23,535 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fb280a-538c-480b-b649-828625dea274/sv-benchmarks/c/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label07.c[27730,27743] [2024-11-13 16:12:24,489 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:12:24,512 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 16:12:24,587 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fb280a-538c-480b-b649-828625dea274/sv-benchmarks/c/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label07.c[26888,26901] [2024-11-13 16:12:24,594 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fb280a-538c-480b-b649-828625dea274/sv-benchmarks/c/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label07.c[27730,27743] [2024-11-13 16:12:25,197 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:12:25,240 INFO L204 MainTranslator]: Completed translation [2024-11-13 16:12:25,241 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:12:25 WrapperNode [2024-11-13 16:12:25,241 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 16:12:25,242 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 16:12:25,242 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 16:12:25,243 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 16:12:25,250 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:12:25" (1/1) ... [2024-11-13 16:12:25,339 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:12:25" (1/1) ... [2024-11-13 16:12:25,833 INFO L138 Inliner]: procedures = 40, calls = 25, calls flagged for inlining = 20, calls inlined = 20, statements flattened = 5289 [2024-11-13 16:12:25,833 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 16:12:25,835 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 16:12:25,835 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 16:12:25,836 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 16:12:25,847 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:12:25" (1/1) ... [2024-11-13 16:12:25,848 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:12:25" (1/1) ... [2024-11-13 16:12:25,951 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:12:25" (1/1) ... [2024-11-13 16:12:26,225 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-13 16:12:26,226 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:12:25" (1/1) ... [2024-11-13 16:12:26,226 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:12:25" (1/1) ... [2024-11-13 16:12:26,468 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:12:25" (1/1) ... [2024-11-13 16:12:26,523 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:12:25" (1/1) ... [2024-11-13 16:12:26,605 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:12:25" (1/1) ... [2024-11-13 16:12:26,704 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:12:25" (1/1) ... [2024-11-13 16:12:26,773 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 16:12:26,776 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 16:12:26,776 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 16:12:26,776 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 16:12:26,779 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:12:25" (1/1) ... [2024-11-13 16:12:26,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:12:26,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fb280a-538c-480b-b649-828625dea274/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:12:26,829 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fb280a-538c-480b-b649-828625dea274/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 16:12:26,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fb280a-538c-480b-b649-828625dea274/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 16:12:26,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 16:12:26,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 16:12:26,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 16:12:26,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 16:12:27,105 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 16:12:27,107 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 16:12:34,608 INFO L? ?]: Removed 759 outVars from TransFormulas that were not future-live. [2024-11-13 16:12:34,609 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 16:12:34,644 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 16:12:34,645 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-13 16:12:34,645 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:12:34 BoogieIcfgContainer [2024-11-13 16:12:34,645 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 16:12:34,648 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 16:12:34,649 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 16:12:34,655 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 16:12:34,655 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 04:12:22" (1/3) ... [2024-11-13 16:12:34,656 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4342de30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:12:34, skipping insertion in model container [2024-11-13 16:12:34,656 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:12:25" (2/3) ... [2024-11-13 16:12:34,656 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4342de30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:12:34, skipping insertion in model container [2024-11-13 16:12:34,656 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:12:34" (3/3) ... [2024-11-13 16:12:34,658 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label07.c [2024-11-13 16:12:34,677 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 16:12:34,680 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label07.c that has 1 procedures, 949 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2024-11-13 16:12:34,804 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 16:12:34,824 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;@43af28bb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 16:12:34,826 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-13 16:12:34,838 INFO L276 IsEmpty]: Start isEmpty. Operand has 949 states, 946 states have (on average 1.9027484143763214) internal successors, (1800), 948 states have internal predecessors, (1800), 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) [2024-11-13 16:12:34,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-13 16:12:34,846 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:12:34,847 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:12:34,847 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:12:34,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:12:34,854 INFO L85 PathProgramCache]: Analyzing trace with hash -1870531854, now seen corresponding path program 1 times [2024-11-13 16:12:34,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:12:34,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260368285] [2024-11-13 16:12:34,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:12:34,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:12:35,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:12:35,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:12:35,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:12:35,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260368285] [2024-11-13 16:12:35,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260368285] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:12:35,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:12:35,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 16:12:35,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233259998] [2024-11-13 16:12:35,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:12:35,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:12:35,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:12:35,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:12:35,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:12:35,275 INFO L87 Difference]: Start difference. First operand has 949 states, 946 states have (on average 1.9027484143763214) internal successors, (1800), 948 states have internal predecessors, (1800), 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) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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) [2024-11-13 16:12:40,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:12:40,906 INFO L93 Difference]: Finished difference Result 2584 states and 4970 transitions. [2024-11-13 16:12:40,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:12:40,908 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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) Word has length 7 [2024-11-13 16:12:40,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:12:40,931 INFO L225 Difference]: With dead ends: 2584 [2024-11-13 16:12:40,932 INFO L226 Difference]: Without dead ends: 1634 [2024-11-13 16:12:40,938 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:12:40,942 INFO L432 NwaCegarLoop]: 700 mSDtfsCounter, 1056 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 2334 mSolverCounterSat, 651 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1056 SdHoareTripleChecker+Valid, 711 SdHoareTripleChecker+Invalid, 2985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 651 IncrementalHoareTripleChecker+Valid, 2334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2024-11-13 16:12:40,943 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1056 Valid, 711 Invalid, 2985 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [651 Valid, 2334 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2024-11-13 16:12:40,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1634 states. [2024-11-13 16:12:41,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1634 to 1634. [2024-11-13 16:12:41,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1634 states, 1632 states have (on average 1.650735294117647) internal successors, (2694), 1633 states have internal predecessors, (2694), 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) [2024-11-13 16:12:41,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1634 states to 1634 states and 2694 transitions. [2024-11-13 16:12:41,114 INFO L78 Accepts]: Start accepts. Automaton has 1634 states and 2694 transitions. Word has length 7 [2024-11-13 16:12:41,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:12:41,115 INFO L471 AbstractCegarLoop]: Abstraction has 1634 states and 2694 transitions. [2024-11-13 16:12:41,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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) [2024-11-13 16:12:41,116 INFO L276 IsEmpty]: Start isEmpty. Operand 1634 states and 2694 transitions. [2024-11-13 16:12:41,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-13 16:12:41,120 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:12:41,121 INFO L215 NwaCegarLoop]: 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] [2024-11-13 16:12:41,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 16:12:41,121 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:12:41,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:12:41,122 INFO L85 PathProgramCache]: Analyzing trace with hash 1435866643, now seen corresponding path program 1 times [2024-11-13 16:12:41,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:12:41,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411491824] [2024-11-13 16:12:41,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:12:41,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:12:41,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:12:41,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:12:41,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:12:41,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411491824] [2024-11-13 16:12:41,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411491824] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:12:41,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:12:41,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 16:12:41,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097025557] [2024-11-13 16:12:41,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:12:41,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 16:12:41,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:12:41,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 16:12:41,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 16:12:41,656 INFO L87 Difference]: Start difference. First operand 1634 states and 2694 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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) [2024-11-13 16:12:41,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:12:41,823 INFO L93 Difference]: Finished difference Result 1700 states and 2798 transitions. [2024-11-13 16:12:41,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 16:12:41,824 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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) Word has length 30 [2024-11-13 16:12:41,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:12:41,833 INFO L225 Difference]: With dead ends: 1700 [2024-11-13 16:12:41,833 INFO L226 Difference]: Without dead ends: 1634 [2024-11-13 16:12:41,835 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 16:12:41,836 INFO L432 NwaCegarLoop]: 1665 mSDtfsCounter, 0 mSDsluCounter, 4929 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6594 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 16:12:41,836 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6594 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 16:12:41,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1634 states. [2024-11-13 16:12:41,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1634 to 1634. [2024-11-13 16:12:41,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1634 states, 1632 states have (on average 1.6133578431372548) internal successors, (2633), 1633 states have internal predecessors, (2633), 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) [2024-11-13 16:12:41,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1634 states to 1634 states and 2633 transitions. [2024-11-13 16:12:41,890 INFO L78 Accepts]: Start accepts. Automaton has 1634 states and 2633 transitions. Word has length 30 [2024-11-13 16:12:41,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:12:41,891 INFO L471 AbstractCegarLoop]: Abstraction has 1634 states and 2633 transitions. [2024-11-13 16:12:41,891 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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) [2024-11-13 16:12:41,891 INFO L276 IsEmpty]: Start isEmpty. Operand 1634 states and 2633 transitions. [2024-11-13 16:12:41,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-13 16:12:41,893 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:12:41,894 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:12:41,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 16:12:41,894 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:12:41,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:12:41,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1002168708, now seen corresponding path program 1 times [2024-11-13 16:12:41,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:12:41,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774835408] [2024-11-13 16:12:41,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:12:41,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:12:41,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:12:42,179 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:12:42,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:12:42,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774835408] [2024-11-13 16:12:42,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774835408] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:12:42,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:12:42,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 16:12:42,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176886613] [2024-11-13 16:12:42,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:12:42,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:12:42,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:12:42,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:12:42,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:12:42,186 INFO L87 Difference]: Start difference. First operand 1634 states and 2633 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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) [2024-11-13 16:12:47,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:12:47,776 INFO L93 Difference]: Finished difference Result 4640 states and 7560 transitions. [2024-11-13 16:12:47,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:12:47,776 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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) Word has length 78 [2024-11-13 16:12:47,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:12:47,792 INFO L225 Difference]: With dead ends: 4640 [2024-11-13 16:12:47,792 INFO L226 Difference]: Without dead ends: 3136 [2024-11-13 16:12:47,795 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:12:47,797 INFO L432 NwaCegarLoop]: 1316 mSDtfsCounter, 762 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 2412 mSolverCounterSat, 681 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 762 SdHoareTripleChecker+Valid, 1491 SdHoareTripleChecker+Invalid, 3093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 681 IncrementalHoareTripleChecker+Valid, 2412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2024-11-13 16:12:47,797 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [762 Valid, 1491 Invalid, 3093 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [681 Valid, 2412 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2024-11-13 16:12:47,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3136 states. [2024-11-13 16:12:47,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3136 to 3136. [2024-11-13 16:12:47,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3136 states, 3134 states have (on average 1.5280791320995533) internal successors, (4789), 3135 states have internal predecessors, (4789), 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) [2024-11-13 16:12:47,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3136 states to 3136 states and 4789 transitions. [2024-11-13 16:12:47,887 INFO L78 Accepts]: Start accepts. Automaton has 3136 states and 4789 transitions. Word has length 78 [2024-11-13 16:12:47,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:12:47,887 INFO L471 AbstractCegarLoop]: Abstraction has 3136 states and 4789 transitions. [2024-11-13 16:12:47,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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) [2024-11-13 16:12:47,888 INFO L276 IsEmpty]: Start isEmpty. Operand 3136 states and 4789 transitions. [2024-11-13 16:12:47,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-13 16:12:47,891 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:12:47,891 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:12:47,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 16:12:47,891 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:12:47,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:12:47,894 INFO L85 PathProgramCache]: Analyzing trace with hash -534472619, now seen corresponding path program 1 times [2024-11-13 16:12:47,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:12:47,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244645212] [2024-11-13 16:12:47,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:12:47,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:12:47,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:12:48,214 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:12:48,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:12:48,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244645212] [2024-11-13 16:12:48,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244645212] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:12:48,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:12:48,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 16:12:48,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699809660] [2024-11-13 16:12:48,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:12:48,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:12:48,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:12:48,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:12:48,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:12:48,219 INFO L87 Difference]: Start difference. First operand 3136 states and 4789 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:12:52,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:12:52,789 INFO L93 Difference]: Finished difference Result 7644 states and 11872 transitions. [2024-11-13 16:12:52,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:12:52,790 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-11-13 16:12:52,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:12:52,810 INFO L225 Difference]: With dead ends: 7644 [2024-11-13 16:12:52,810 INFO L226 Difference]: Without dead ends: 4638 [2024-11-13 16:12:52,814 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:12:52,815 INFO L432 NwaCegarLoop]: 315 mSDtfsCounter, 891 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2305 mSolverCounterSat, 962 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 891 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 3267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 962 IncrementalHoareTripleChecker+Valid, 2305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-13 16:12:52,816 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [891 Valid, 322 Invalid, 3267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [962 Valid, 2305 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-11-13 16:12:52,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4638 states. [2024-11-13 16:12:52,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4638 to 4638. [2024-11-13 16:12:52,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4638 states, 4636 states have (on average 1.5459447799827437) internal successors, (7167), 4637 states have internal predecessors, (7167), 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) [2024-11-13 16:12:53,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4638 states to 4638 states and 7167 transitions. [2024-11-13 16:12:53,002 INFO L78 Accepts]: Start accepts. Automaton has 4638 states and 7167 transitions. Word has length 81 [2024-11-13 16:12:53,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:12:53,003 INFO L471 AbstractCegarLoop]: Abstraction has 4638 states and 7167 transitions. [2024-11-13 16:12:53,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:12:53,003 INFO L276 IsEmpty]: Start isEmpty. Operand 4638 states and 7167 transitions. [2024-11-13 16:12:53,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-13 16:12:53,009 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:12:53,009 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:12:53,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 16:12:53,010 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:12:53,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:12:53,010 INFO L85 PathProgramCache]: Analyzing trace with hash -420947918, now seen corresponding path program 1 times [2024-11-13 16:12:53,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:12:53,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781115694] [2024-11-13 16:12:53,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:12:53,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:12:53,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:12:53,314 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:12:53,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:12:53,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781115694] [2024-11-13 16:12:53,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781115694] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:12:53,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:12:53,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 16:12:53,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79279222] [2024-11-13 16:12:53,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:12:53,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:12:53,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:12:53,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:12:53,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:12:53,317 INFO L87 Difference]: Start difference. First operand 4638 states and 7167 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 2 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:12:57,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:12:57,923 INFO L93 Difference]: Finished difference Result 13652 states and 21162 transitions. [2024-11-13 16:12:57,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:12:57,924 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 2 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-11-13 16:12:57,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:12:57,950 INFO L225 Difference]: With dead ends: 13652 [2024-11-13 16:12:57,950 INFO L226 Difference]: Without dead ends: 9144 [2024-11-13 16:12:57,957 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:12:57,958 INFO L432 NwaCegarLoop]: 608 mSDtfsCounter, 940 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1995 mSolverCounterSat, 935 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 940 SdHoareTripleChecker+Valid, 614 SdHoareTripleChecker+Invalid, 2930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 935 IncrementalHoareTripleChecker+Valid, 1995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-13 16:12:57,962 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [940 Valid, 614 Invalid, 2930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [935 Valid, 1995 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-13 16:12:57,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9144 states. [2024-11-13 16:12:58,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9144 to 9144. [2024-11-13 16:12:58,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9144 states, 9142 states have (on average 1.3845985561146357) internal successors, (12658), 9143 states have internal predecessors, (12658), 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) [2024-11-13 16:12:58,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9144 states to 9144 states and 12658 transitions. [2024-11-13 16:12:58,183 INFO L78 Accepts]: Start accepts. Automaton has 9144 states and 12658 transitions. Word has length 82 [2024-11-13 16:12:58,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:12:58,184 INFO L471 AbstractCegarLoop]: Abstraction has 9144 states and 12658 transitions. [2024-11-13 16:12:58,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 2 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:12:58,184 INFO L276 IsEmpty]: Start isEmpty. Operand 9144 states and 12658 transitions. [2024-11-13 16:12:58,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-13 16:12:58,185 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:12:58,186 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:12:58,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 16:12:58,187 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:12:58,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:12:58,187 INFO L85 PathProgramCache]: Analyzing trace with hash 2075955395, now seen corresponding path program 1 times [2024-11-13 16:12:58,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:12:58,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188545261] [2024-11-13 16:12:58,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:12:58,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:12:58,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:12:59,001 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:12:59,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:12:59,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188545261] [2024-11-13 16:12:59,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188545261] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:12:59,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:12:59,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 16:12:59,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119124813] [2024-11-13 16:12:59,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:12:59,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 16:12:59,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:12:59,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 16:12:59,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 16:12:59,006 INFO L87 Difference]: Start difference. First operand 9144 states and 12658 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 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) [2024-11-13 16:13:08,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:13:08,082 INFO L93 Difference]: Finished difference Result 25668 states and 35587 transitions. [2024-11-13 16:13:08,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 16:13:08,083 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 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) Word has length 88 [2024-11-13 16:13:08,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:13:08,137 INFO L225 Difference]: With dead ends: 25668 [2024-11-13 16:13:08,137 INFO L226 Difference]: Without dead ends: 16654 [2024-11-13 16:13:08,144 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-13 16:13:08,145 INFO L432 NwaCegarLoop]: 825 mSDtfsCounter, 4776 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 5301 mSolverCounterSat, 958 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4776 SdHoareTripleChecker+Valid, 851 SdHoareTripleChecker+Invalid, 6259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 958 IncrementalHoareTripleChecker+Valid, 5301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2024-11-13 16:13:08,146 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4776 Valid, 851 Invalid, 6259 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [958 Valid, 5301 Invalid, 0 Unknown, 0 Unchecked, 8.7s Time] [2024-11-13 16:13:08,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16654 states. [2024-11-13 16:13:08,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16654 to 14401. [2024-11-13 16:13:08,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14401 states, 14399 states have (on average 1.2696020556983123) internal successors, (18281), 14400 states have internal predecessors, (18281), 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) [2024-11-13 16:13:08,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14401 states to 14401 states and 18281 transitions. [2024-11-13 16:13:08,487 INFO L78 Accepts]: Start accepts. Automaton has 14401 states and 18281 transitions. Word has length 88 [2024-11-13 16:13:08,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:13:08,489 INFO L471 AbstractCegarLoop]: Abstraction has 14401 states and 18281 transitions. [2024-11-13 16:13:08,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 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) [2024-11-13 16:13:08,490 INFO L276 IsEmpty]: Start isEmpty. Operand 14401 states and 18281 transitions. [2024-11-13 16:13:08,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-13 16:13:08,491 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:13:08,491 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:13:08,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 16:13:08,495 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:13:08,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:13:08,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1886064963, now seen corresponding path program 1 times [2024-11-13 16:13:08,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:13:08,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814169053] [2024-11-13 16:13:08,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:13:08,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:13:08,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:13:08,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:13:08,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:13:08,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814169053] [2024-11-13 16:13:08,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814169053] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:13:08,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:13:08,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-13 16:13:08,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009096326] [2024-11-13 16:13:08,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:13:08,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 16:13:08,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:13:08,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 16:13:08,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-13 16:13:08,983 INFO L87 Difference]: Start difference. First operand 14401 states and 18281 transitions. Second operand has 10 states, 10 states have (on average 9.0) internal successors, (90), 10 states have internal predecessors, (90), 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) [2024-11-13 16:13:09,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:13:09,863 INFO L93 Difference]: Finished difference Result 15393 states and 19881 transitions. [2024-11-13 16:13:09,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-13 16:13:09,863 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.0) internal successors, (90), 10 states have internal predecessors, (90), 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) Word has length 90 [2024-11-13 16:13:09,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:13:09,903 INFO L225 Difference]: With dead ends: 15393 [2024-11-13 16:13:09,904 INFO L226 Difference]: Without dead ends: 15331 [2024-11-13 16:13:09,910 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2024-11-13 16:13:09,911 INFO L432 NwaCegarLoop]: 1600 mSDtfsCounter, 13495 mSDsluCounter, 4051 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13495 SdHoareTripleChecker+Valid, 5651 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 16:13:09,912 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13495 Valid, 5651 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 16:13:09,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15331 states. [2024-11-13 16:13:10,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15331 to 14461. [2024-11-13 16:13:10,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14461 states, 14459 states have (on average 1.2710422574175255) internal successors, (18378), 14460 states have internal predecessors, (18378), 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) [2024-11-13 16:13:10,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14461 states to 14461 states and 18378 transitions. [2024-11-13 16:13:10,161 INFO L78 Accepts]: Start accepts. Automaton has 14461 states and 18378 transitions. Word has length 90 [2024-11-13 16:13:10,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:13:10,162 INFO L471 AbstractCegarLoop]: Abstraction has 14461 states and 18378 transitions. [2024-11-13 16:13:10,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.0) internal successors, (90), 10 states have internal predecessors, (90), 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) [2024-11-13 16:13:10,163 INFO L276 IsEmpty]: Start isEmpty. Operand 14461 states and 18378 transitions. [2024-11-13 16:13:10,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-13 16:13:10,164 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:13:10,164 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:13:10,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 16:13:10,165 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:13:10,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:13:10,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1383457805, now seen corresponding path program 1 times [2024-11-13 16:13:10,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:13:10,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040584720] [2024-11-13 16:13:10,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:13:10,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:13:10,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:13:10,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:13:10,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:13:10,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040584720] [2024-11-13 16:13:10,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040584720] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:13:10,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:13:10,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 16:13:10,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897916052] [2024-11-13 16:13:10,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:13:10,437 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:13:10,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:13:10,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:13:10,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:13:10,440 INFO L87 Difference]: Start difference. First operand 14461 states and 18378 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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) [2024-11-13 16:13:10,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:13:10,545 INFO L93 Difference]: Finished difference Result 14694 states and 18753 transitions. [2024-11-13 16:13:10,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:13:10,546 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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) Word has length 92 [2024-11-13 16:13:10,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:13:10,581 INFO L225 Difference]: With dead ends: 14694 [2024-11-13 16:13:10,581 INFO L226 Difference]: Without dead ends: 14572 [2024-11-13 16:13:10,586 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:13:10,587 INFO L432 NwaCegarLoop]: 1602 mSDtfsCounter, 1508 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1508 SdHoareTripleChecker+Valid, 1695 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 16:13:10,587 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1508 Valid, 1695 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 16:13:10,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14572 states. [2024-11-13 16:13:10,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14572 to 14568. [2024-11-13 16:13:10,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14568 states, 14566 states have (on average 1.273376355897295) internal successors, (18548), 14567 states have internal predecessors, (18548), 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) [2024-11-13 16:13:10,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14568 states to 14568 states and 18548 transitions. [2024-11-13 16:13:10,948 INFO L78 Accepts]: Start accepts. Automaton has 14568 states and 18548 transitions. Word has length 92 [2024-11-13 16:13:10,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:13:10,949 INFO L471 AbstractCegarLoop]: Abstraction has 14568 states and 18548 transitions. [2024-11-13 16:13:10,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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) [2024-11-13 16:13:10,949 INFO L276 IsEmpty]: Start isEmpty. Operand 14568 states and 18548 transitions. [2024-11-13 16:13:10,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-13 16:13:10,951 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:13:10,951 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:13:10,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 16:13:10,951 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:13:10,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:13:10,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1316964293, now seen corresponding path program 1 times [2024-11-13 16:13:10,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:13:10,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353074144] [2024-11-13 16:13:10,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:13:10,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:13:11,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:13:11,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:13:11,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:13:11,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353074144] [2024-11-13 16:13:11,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353074144] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:13:11,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:13:11,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-13 16:13:11,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629691553] [2024-11-13 16:13:11,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:13:11,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 16:13:11,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:13:11,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 16:13:11,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-13 16:13:11,775 INFO L87 Difference]: Start difference. First operand 14568 states and 18548 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2024-11-13 16:13:13,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:13:13,204 INFO L93 Difference]: Finished difference Result 14799 states and 18916 transitions. [2024-11-13 16:13:13,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 16:13:13,205 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) Word has length 92 [2024-11-13 16:13:13,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:13:13,241 INFO L225 Difference]: With dead ends: 14799 [2024-11-13 16:13:13,241 INFO L226 Difference]: Without dead ends: 14570 [2024-11-13 16:13:13,247 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2024-11-13 16:13:13,249 INFO L432 NwaCegarLoop]: 1597 mSDtfsCounter, 12156 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12156 SdHoareTripleChecker+Valid, 2279 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 16:13:13,250 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12156 Valid, 2279 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 16:13:13,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14570 states. [2024-11-13 16:13:13,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14570 to 14568. [2024-11-13 16:13:13,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14568 states, 14566 states have (on average 1.273239049842098) internal successors, (18546), 14567 states have internal predecessors, (18546), 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) [2024-11-13 16:13:13,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14568 states to 14568 states and 18546 transitions. [2024-11-13 16:13:13,473 INFO L78 Accepts]: Start accepts. Automaton has 14568 states and 18546 transitions. Word has length 92 [2024-11-13 16:13:13,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:13:13,474 INFO L471 AbstractCegarLoop]: Abstraction has 14568 states and 18546 transitions. [2024-11-13 16:13:13,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2024-11-13 16:13:13,474 INFO L276 IsEmpty]: Start isEmpty. Operand 14568 states and 18546 transitions. [2024-11-13 16:13:13,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-13 16:13:13,480 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:13:13,480 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:13:13,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 16:13:13,481 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:13:13,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:13:13,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1709057062, now seen corresponding path program 1 times [2024-11-13 16:13:13,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:13:13,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720392248] [2024-11-13 16:13:13,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:13:13,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:13:13,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:13:13,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:13:13,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:13:13,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720392248] [2024-11-13 16:13:13,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720392248] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:13:13,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:13:13,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 16:13:13,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668061618] [2024-11-13 16:13:13,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:13:13,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 16:13:13,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:13:13,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 16:13:13,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 16:13:13,909 INFO L87 Difference]: Start difference. First operand 14568 states and 18546 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 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) [2024-11-13 16:13:14,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:13:14,095 INFO L93 Difference]: Finished difference Result 14576 states and 18555 transitions. [2024-11-13 16:13:14,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 16:13:14,096 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 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) Word has length 93 [2024-11-13 16:13:14,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:13:14,131 INFO L225 Difference]: With dead ends: 14576 [2024-11-13 16:13:14,131 INFO L226 Difference]: Without dead ends: 14574 [2024-11-13 16:13:14,134 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 16:13:14,135 INFO L432 NwaCegarLoop]: 1603 mSDtfsCounter, 0 mSDsluCounter, 4800 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6403 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 16:13:14,139 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6403 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 16:13:14,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14574 states. [2024-11-13 16:13:14,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14574 to 14574. [2024-11-13 16:13:14,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14574 states, 14572 states have (on average 1.2730579192972824) internal successors, (18551), 14573 states have internal predecessors, (18551), 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) [2024-11-13 16:13:14,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14574 states to 14574 states and 18551 transitions. [2024-11-13 16:13:14,352 INFO L78 Accepts]: Start accepts. Automaton has 14574 states and 18551 transitions. Word has length 93 [2024-11-13 16:13:14,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:13:14,353 INFO L471 AbstractCegarLoop]: Abstraction has 14574 states and 18551 transitions. [2024-11-13 16:13:14,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 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) [2024-11-13 16:13:14,353 INFO L276 IsEmpty]: Start isEmpty. Operand 14574 states and 18551 transitions. [2024-11-13 16:13:14,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-13 16:13:14,358 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:13:14,359 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:13:14,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-13 16:13:14,359 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:13:14,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:13:14,360 INFO L85 PathProgramCache]: Analyzing trace with hash -290375813, now seen corresponding path program 1 times [2024-11-13 16:13:14,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:13:14,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501033049] [2024-11-13 16:13:14,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:13:14,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:13:14,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:13:14,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:13:14,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:13:14,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501033049] [2024-11-13 16:13:14,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501033049] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:13:14,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:13:14,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 16:13:14,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516838497] [2024-11-13 16:13:14,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:13:14,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:13:14,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:13:14,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:13:14,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:13:14,500 INFO L87 Difference]: Start difference. First operand 14574 states and 18551 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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) [2024-11-13 16:13:14,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:13:14,595 INFO L93 Difference]: Finished difference Result 15028 states and 19263 transitions. [2024-11-13 16:13:14,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:13:14,596 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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) Word has length 94 [2024-11-13 16:13:14,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:13:14,631 INFO L225 Difference]: With dead ends: 15028 [2024-11-13 16:13:14,631 INFO L226 Difference]: Without dead ends: 14793 [2024-11-13 16:13:14,636 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:13:14,637 INFO L432 NwaCegarLoop]: 1683 mSDtfsCounter, 1527 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1527 SdHoareTripleChecker+Valid, 1788 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 16:13:14,637 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1527 Valid, 1788 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 16:13:14,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14793 states. [2024-11-13 16:13:14,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14793 to 14791. [2024-11-13 16:13:14,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14791 states, 14789 states have (on average 1.277165460815471) internal successors, (18888), 14790 states have internal predecessors, (18888), 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) [2024-11-13 16:13:14,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14791 states to 14791 states and 18888 transitions. [2024-11-13 16:13:14,855 INFO L78 Accepts]: Start accepts. Automaton has 14791 states and 18888 transitions. Word has length 94 [2024-11-13 16:13:14,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:13:14,855 INFO L471 AbstractCegarLoop]: Abstraction has 14791 states and 18888 transitions. [2024-11-13 16:13:14,855 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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) [2024-11-13 16:13:14,856 INFO L276 IsEmpty]: Start isEmpty. Operand 14791 states and 18888 transitions. [2024-11-13 16:13:14,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-13 16:13:14,857 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:13:14,857 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:13:14,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-13 16:13:14,858 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:13:14,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:13:14,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1651693691, now seen corresponding path program 1 times [2024-11-13 16:13:14,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:13:14,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490812361] [2024-11-13 16:13:14,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:13:14,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:13:14,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:13:15,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:13:15,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:13:15,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490812361] [2024-11-13 16:13:15,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490812361] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:13:15,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:13:15,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 16:13:15,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712951812] [2024-11-13 16:13:15,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:13:15,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:13:15,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:13:15,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:13:15,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:13:15,067 INFO L87 Difference]: Start difference. First operand 14791 states and 18888 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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) [2024-11-13 16:13:15,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:13:15,175 INFO L93 Difference]: Finished difference Result 15663 states and 20246 transitions. [2024-11-13 16:13:15,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:13:15,176 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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) Word has length 94 [2024-11-13 16:13:15,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:13:15,214 INFO L225 Difference]: With dead ends: 15663 [2024-11-13 16:13:15,214 INFO L226 Difference]: Without dead ends: 15211 [2024-11-13 16:13:15,219 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:13:15,220 INFO L432 NwaCegarLoop]: 1681 mSDtfsCounter, 1525 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1525 SdHoareTripleChecker+Valid, 1790 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 16:13:15,221 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1525 Valid, 1790 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 16:13:15,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15211 states. [2024-11-13 16:13:15,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15211 to 15209. [2024-11-13 16:13:15,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15209 states, 15207 states have (on average 1.2842769777076346) internal successors, (19530), 15208 states have internal predecessors, (19530), 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) [2024-11-13 16:13:15,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15209 states to 15209 states and 19530 transitions. [2024-11-13 16:13:15,455 INFO L78 Accepts]: Start accepts. Automaton has 15209 states and 19530 transitions. Word has length 94 [2024-11-13 16:13:15,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:13:15,455 INFO L471 AbstractCegarLoop]: Abstraction has 15209 states and 19530 transitions. [2024-11-13 16:13:15,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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) [2024-11-13 16:13:15,456 INFO L276 IsEmpty]: Start isEmpty. Operand 15209 states and 19530 transitions. [2024-11-13 16:13:15,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-13 16:13:15,457 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:13:15,457 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:13:15,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-13 16:13:15,458 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:13:15,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:13:15,458 INFO L85 PathProgramCache]: Analyzing trace with hash 2078464635, now seen corresponding path program 1 times [2024-11-13 16:13:15,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:13:15,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138648368] [2024-11-13 16:13:15,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:13:15,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:13:15,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:13:15,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:13:15,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:13:15,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138648368] [2024-11-13 16:13:15,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138648368] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:13:15,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:13:15,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 16:13:15,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593944494] [2024-11-13 16:13:15,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:13:15,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:13:15,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:13:15,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:13:15,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:13:15,587 INFO L87 Difference]: Start difference. First operand 15209 states and 19530 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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) [2024-11-13 16:13:15,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:13:15,700 INFO L93 Difference]: Finished difference Result 16885 states and 22116 transitions. [2024-11-13 16:13:15,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:13:15,701 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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) Word has length 94 [2024-11-13 16:13:15,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:13:15,738 INFO L225 Difference]: With dead ends: 16885 [2024-11-13 16:13:15,738 INFO L226 Difference]: Without dead ends: 16015 [2024-11-13 16:13:15,744 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:13:15,746 INFO L432 NwaCegarLoop]: 1669 mSDtfsCounter, 1521 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1521 SdHoareTripleChecker+Valid, 1786 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 16:13:15,746 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1521 Valid, 1786 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 16:13:15,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16015 states. [2024-11-13 16:13:16,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16015 to 16013. [2024-11-13 16:13:16,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16013 states, 16011 states have (on average 1.2959840109924428) internal successors, (20750), 16012 states have internal predecessors, (20750), 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) [2024-11-13 16:13:16,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16013 states to 16013 states and 20750 transitions. [2024-11-13 16:13:16,119 INFO L78 Accepts]: Start accepts. Automaton has 16013 states and 20750 transitions. Word has length 94 [2024-11-13 16:13:16,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:13:16,120 INFO L471 AbstractCegarLoop]: Abstraction has 16013 states and 20750 transitions. [2024-11-13 16:13:16,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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) [2024-11-13 16:13:16,120 INFO L276 IsEmpty]: Start isEmpty. Operand 16013 states and 20750 transitions. [2024-11-13 16:13:16,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-13 16:13:16,122 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:13:16,122 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:13:16,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-13 16:13:16,123 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:13:16,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:13:16,123 INFO L85 PathProgramCache]: Analyzing trace with hash -978240645, now seen corresponding path program 1 times [2024-11-13 16:13:16,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:13:16,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813639562] [2024-11-13 16:13:16,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:13:16,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:13:16,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:13:16,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:13:16,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:13:16,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813639562] [2024-11-13 16:13:16,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813639562] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:13:16,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:13:16,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 16:13:16,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096103938] [2024-11-13 16:13:16,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:13:16,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:13:16,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:13:16,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:13:16,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:13:16,380 INFO L87 Difference]: Start difference. First operand 16013 states and 20750 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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) [2024-11-13 16:13:16,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:13:16,714 INFO L93 Difference]: Finished difference Result 19233 states and 25664 transitions. [2024-11-13 16:13:16,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:13:16,715 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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) Word has length 94 [2024-11-13 16:13:16,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:13:16,783 INFO L225 Difference]: With dead ends: 19233 [2024-11-13 16:13:16,783 INFO L226 Difference]: Without dead ends: 17559 [2024-11-13 16:13:16,789 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:13:16,790 INFO L432 NwaCegarLoop]: 1667 mSDtfsCounter, 1519 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1519 SdHoareTripleChecker+Valid, 1788 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 16:13:16,790 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1519 Valid, 1788 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 16:13:16,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17559 states. [2024-11-13 16:13:17,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17559 to 17557. [2024-11-13 16:13:17,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17557 states, 17555 states have (on average 1.313699800626602) internal successors, (23062), 17556 states have internal predecessors, (23062), 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) [2024-11-13 16:13:17,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17557 states to 17557 states and 23062 transitions. [2024-11-13 16:13:17,210 INFO L78 Accepts]: Start accepts. Automaton has 17557 states and 23062 transitions. Word has length 94 [2024-11-13 16:13:17,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:13:17,211 INFO L471 AbstractCegarLoop]: Abstraction has 17557 states and 23062 transitions. [2024-11-13 16:13:17,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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) [2024-11-13 16:13:17,211 INFO L276 IsEmpty]: Start isEmpty. Operand 17557 states and 23062 transitions. [2024-11-13 16:13:17,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-13 16:13:17,213 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:13:17,213 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:13:17,213 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-13 16:13:17,213 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:13:17,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:13:17,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1101257851, now seen corresponding path program 1 times [2024-11-13 16:13:17,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:13:17,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403126181] [2024-11-13 16:13:17,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:13:17,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:13:17,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:13:17,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:13:17,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:13:17,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403126181] [2024-11-13 16:13:17,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403126181] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:13:17,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:13:17,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 16:13:17,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56115206] [2024-11-13 16:13:17,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:13:17,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:13:17,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:13:17,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:13:17,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:13:17,343 INFO L87 Difference]: Start difference. First operand 17557 states and 23062 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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) [2024-11-13 16:13:17,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:13:17,595 INFO L93 Difference]: Finished difference Result 23737 states and 32376 transitions. [2024-11-13 16:13:17,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:13:17,596 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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) Word has length 94 [2024-11-13 16:13:17,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:13:17,647 INFO L225 Difference]: With dead ends: 23737 [2024-11-13 16:13:17,648 INFO L226 Difference]: Without dead ends: 20519 [2024-11-13 16:13:17,658 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:13:17,659 INFO L432 NwaCegarLoop]: 1665 mSDtfsCounter, 1517 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1517 SdHoareTripleChecker+Valid, 1790 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 16:13:17,662 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1517 Valid, 1790 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 16:13:17,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20519 states. [2024-11-13 16:13:18,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20519 to 20517. [2024-11-13 16:13:18,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20517 states, 20515 states have (on average 1.3370704362661467) internal successors, (27430), 20516 states have internal predecessors, (27430), 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) [2024-11-13 16:13:18,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20517 states to 20517 states and 27430 transitions. [2024-11-13 16:13:18,237 INFO L78 Accepts]: Start accepts. Automaton has 20517 states and 27430 transitions. Word has length 94 [2024-11-13 16:13:18,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:13:18,238 INFO L471 AbstractCegarLoop]: Abstraction has 20517 states and 27430 transitions. [2024-11-13 16:13:18,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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) [2024-11-13 16:13:18,238 INFO L276 IsEmpty]: Start isEmpty. Operand 20517 states and 27430 transitions. [2024-11-13 16:13:18,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-13 16:13:18,239 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:13:18,240 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:13:18,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-13 16:13:18,240 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:13:18,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:13:18,241 INFO L85 PathProgramCache]: Analyzing trace with hash -1412776581, now seen corresponding path program 1 times [2024-11-13 16:13:18,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:13:18,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321298020] [2024-11-13 16:13:18,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:13:18,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:13:18,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:13:18,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:13:18,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:13:18,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321298020] [2024-11-13 16:13:18,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321298020] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:13:18,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:13:18,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 16:13:18,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133531324] [2024-11-13 16:13:18,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:13:18,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:13:18,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:13:18,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:13:18,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:13:18,367 INFO L87 Difference]: Start difference. First operand 20517 states and 27430 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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) [2024-11-13 16:13:19,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:13:19,220 INFO L93 Difference]: Finished difference Result 32361 states and 45032 transitions. [2024-11-13 16:13:19,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:13:19,221 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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) Word has length 94 [2024-11-13 16:13:19,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:13:19,330 INFO L225 Difference]: With dead ends: 32361 [2024-11-13 16:13:19,330 INFO L226 Difference]: Without dead ends: 26183 [2024-11-13 16:13:19,344 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:13:19,345 INFO L432 NwaCegarLoop]: 1663 mSDtfsCounter, 1515 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1515 SdHoareTripleChecker+Valid, 1792 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 16:13:19,345 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1515 Valid, 1792 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 16:13:19,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26183 states. [2024-11-13 16:13:20,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26183 to 26181. [2024-11-13 16:13:20,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26181 states, 26179 states have (on average 1.361931318996142) internal successors, (35654), 26180 states have internal predecessors, (35654), 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) [2024-11-13 16:13:20,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26181 states to 26181 states and 35654 transitions. [2024-11-13 16:13:20,378 INFO L78 Accepts]: Start accepts. Automaton has 26181 states and 35654 transitions. Word has length 94 [2024-11-13 16:13:20,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:13:20,379 INFO L471 AbstractCegarLoop]: Abstraction has 26181 states and 35654 transitions. [2024-11-13 16:13:20,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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) [2024-11-13 16:13:20,379 INFO L276 IsEmpty]: Start isEmpty. Operand 26181 states and 35654 transitions. [2024-11-13 16:13:20,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-13 16:13:20,381 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:13:20,381 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:13:20,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-13 16:13:20,381 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:13:20,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:13:20,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1814608251, now seen corresponding path program 1 times [2024-11-13 16:13:20,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:13:20,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760589386] [2024-11-13 16:13:20,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:13:20,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:13:20,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:13:20,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:13:20,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:13:20,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760589386] [2024-11-13 16:13:20,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760589386] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:13:20,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:13:20,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 16:13:20,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038722383] [2024-11-13 16:13:20,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:13:20,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:13:20,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:13:20,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:13:20,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:13:20,526 INFO L87 Difference]: Start difference. First operand 26181 states and 35654 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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) [2024-11-13 16:13:21,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:13:21,370 INFO L93 Difference]: Finished difference Result 48841 states and 68808 transitions. [2024-11-13 16:13:21,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:13:21,371 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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) Word has length 94 [2024-11-13 16:13:21,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:13:21,434 INFO L225 Difference]: With dead ends: 48841 [2024-11-13 16:13:21,434 INFO L226 Difference]: Without dead ends: 36999 [2024-11-13 16:13:21,446 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:13:21,447 INFO L432 NwaCegarLoop]: 1679 mSDtfsCounter, 1523 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1523 SdHoareTripleChecker+Valid, 1792 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 16:13:21,448 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1523 Valid, 1792 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 16:13:21,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36999 states. [2024-11-13 16:13:22,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36999 to 36997. [2024-11-13 16:13:22,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36997 states, 36995 states have (on average 1.3806730639275577) internal successors, (51078), 36996 states have internal predecessors, (51078), 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) [2024-11-13 16:13:22,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36997 states to 36997 states and 51078 transitions. [2024-11-13 16:13:22,688 INFO L78 Accepts]: Start accepts. Automaton has 36997 states and 51078 transitions. Word has length 94 [2024-11-13 16:13:22,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:13:22,688 INFO L471 AbstractCegarLoop]: Abstraction has 36997 states and 51078 transitions. [2024-11-13 16:13:22,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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) [2024-11-13 16:13:22,689 INFO L276 IsEmpty]: Start isEmpty. Operand 36997 states and 51078 transitions. [2024-11-13 16:13:22,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-13 16:13:22,690 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:13:22,691 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:13:22,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-13 16:13:22,691 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:13:22,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:13:22,692 INFO L85 PathProgramCache]: Analyzing trace with hash -1683181226, now seen corresponding path program 1 times [2024-11-13 16:13:22,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:13:22,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828039748] [2024-11-13 16:13:22,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:13:22,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:13:22,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:13:22,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:13:22,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:13:22,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828039748] [2024-11-13 16:13:22,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828039748] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:13:22,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:13:22,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 16:13:22,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673777517] [2024-11-13 16:13:22,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:13:22,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:13:22,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:13:22,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:13:22,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:13:22,861 INFO L87 Difference]: Start difference. First operand 36997 states and 51078 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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) [2024-11-13 16:13:24,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:13:24,203 INFO L93 Difference]: Finished difference Result 60556 states and 85644 transitions. [2024-11-13 16:13:24,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:13:24,203 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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) Word has length 96 [2024-11-13 16:13:24,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:13:24,280 INFO L225 Difference]: With dead ends: 60556 [2024-11-13 16:13:24,280 INFO L226 Difference]: Without dead ends: 48009 [2024-11-13 16:13:24,294 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:13:24,295 INFO L432 NwaCegarLoop]: 1688 mSDtfsCounter, 1526 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1526 SdHoareTripleChecker+Valid, 1789 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 16:13:24,295 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1526 Valid, 1789 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 16:13:24,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48009 states. [2024-11-13 16:13:25,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48009 to 48007. [2024-11-13 16:13:25,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48007 states, 48005 states have (on average 1.3920216644099572) internal successors, (66824), 48006 states have internal predecessors, (66824), 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) [2024-11-13 16:13:25,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48007 states to 48007 states and 66824 transitions. [2024-11-13 16:13:25,988 INFO L78 Accepts]: Start accepts. Automaton has 48007 states and 66824 transitions. Word has length 96 [2024-11-13 16:13:25,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:13:25,989 INFO L471 AbstractCegarLoop]: Abstraction has 48007 states and 66824 transitions. [2024-11-13 16:13:25,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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) [2024-11-13 16:13:25,989 INFO L276 IsEmpty]: Start isEmpty. Operand 48007 states and 66824 transitions. [2024-11-13 16:13:26,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-13 16:13:26,001 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:13:26,002 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:13:26,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-13 16:13:26,002 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:13:26,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:13:26,003 INFO L85 PathProgramCache]: Analyzing trace with hash 2033252381, now seen corresponding path program 1 times [2024-11-13 16:13:26,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:13:26,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611765548] [2024-11-13 16:13:26,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:13:26,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:13:26,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:13:26,580 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:13:26,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:13:26,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611765548] [2024-11-13 16:13:26,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611765548] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:13:26,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:13:26,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-13 16:13:26,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627667765] [2024-11-13 16:13:26,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:13:26,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 16:13:26,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:13:26,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 16:13:26,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-13 16:13:26,584 INFO L87 Difference]: Start difference. First operand 48007 states and 66824 transitions. Second operand has 10 states, 10 states have (on average 11.6) internal successors, (116), 10 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) [2024-11-13 16:13:33,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:13:33,155 INFO L93 Difference]: Finished difference Result 324121 states and 465425 transitions. [2024-11-13 16:13:33,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 16:13:33,156 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.6) internal successors, (116), 10 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) Word has length 119 [2024-11-13 16:13:33,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:13:33,622 INFO L225 Difference]: With dead ends: 324121 [2024-11-13 16:13:33,622 INFO L226 Difference]: Without dead ends: 290455 [2024-11-13 16:13:33,682 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-13 16:13:33,683 INFO L432 NwaCegarLoop]: 1709 mSDtfsCounter, 11756 mSDsluCounter, 3338 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11756 SdHoareTripleChecker+Valid, 5047 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 16:13:33,683 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11756 Valid, 5047 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 16:13:33,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290455 states. [2024-11-13 16:13:37,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290455 to 81671. [2024-11-13 16:13:37,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81671 states, 81669 states have (on average 1.4091025970686553) internal successors, (115080), 81670 states have internal predecessors, (115080), 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) [2024-11-13 16:13:38,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81671 states to 81671 states and 115080 transitions. [2024-11-13 16:13:38,234 INFO L78 Accepts]: Start accepts. Automaton has 81671 states and 115080 transitions. Word has length 119 [2024-11-13 16:13:38,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:13:38,235 INFO L471 AbstractCegarLoop]: Abstraction has 81671 states and 115080 transitions. [2024-11-13 16:13:38,235 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.6) internal successors, (116), 10 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) [2024-11-13 16:13:38,235 INFO L276 IsEmpty]: Start isEmpty. Operand 81671 states and 115080 transitions. [2024-11-13 16:13:38,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-13 16:13:38,246 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:13:38,246 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:13:38,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-13 16:13:38,246 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:13:38,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:13:38,247 INFO L85 PathProgramCache]: Analyzing trace with hash -319645411, now seen corresponding path program 1 times [2024-11-13 16:13:38,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:13:38,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512791200] [2024-11-13 16:13:38,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:13:38,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:13:38,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:13:38,665 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 16:13:38,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:13:38,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512791200] [2024-11-13 16:13:38,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512791200] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:13:38,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:13:38,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-13 16:13:38,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364738891] [2024-11-13 16:13:38,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:13:38,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 16:13:38,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:13:38,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 16:13:38,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-13 16:13:38,667 INFO L87 Difference]: Start difference. First operand 81671 states and 115080 transitions. Second operand has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 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) [2024-11-13 16:13:46,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:13:46,838 INFO L93 Difference]: Finished difference Result 357785 states and 513681 transitions. [2024-11-13 16:13:46,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 16:13:46,839 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 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) Word has length 119 [2024-11-13 16:13:46,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:13:47,427 INFO L225 Difference]: With dead ends: 357785 [2024-11-13 16:13:47,427 INFO L226 Difference]: Without dead ends: 324119 [2024-11-13 16:13:47,499 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-13 16:13:47,500 INFO L432 NwaCegarLoop]: 1706 mSDtfsCounter, 11802 mSDsluCounter, 3174 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11802 SdHoareTripleChecker+Valid, 4880 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 16:13:47,500 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11802 Valid, 4880 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 16:13:47,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324119 states. [2024-11-13 16:13:54,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324119 to 132231. [2024-11-13 16:13:54,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132231 states, 132229 states have (on average 1.4153022408095046) internal successors, (187144), 132230 states have internal predecessors, (187144), 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) [2024-11-13 16:13:54,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132231 states to 132231 states and 187144 transitions. [2024-11-13 16:13:54,364 INFO L78 Accepts]: Start accepts. Automaton has 132231 states and 187144 transitions. Word has length 119 [2024-11-13 16:13:54,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:13:54,364 INFO L471 AbstractCegarLoop]: Abstraction has 132231 states and 187144 transitions. [2024-11-13 16:13:54,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 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) [2024-11-13 16:13:54,364 INFO L276 IsEmpty]: Start isEmpty. Operand 132231 states and 187144 transitions. [2024-11-13 16:13:54,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-13 16:13:54,375 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:13:54,375 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:13:54,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-13 16:13:54,376 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:13:54,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:13:54,377 INFO L85 PathProgramCache]: Analyzing trace with hash 107125533, now seen corresponding path program 1 times [2024-11-13 16:13:54,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:13:54,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338277201] [2024-11-13 16:13:54,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:13:54,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:13:54,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:13:55,123 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-13 16:13:55,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:13:55,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338277201] [2024-11-13 16:13:55,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338277201] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:13:55,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:13:55,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-13 16:13:55,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485657014] [2024-11-13 16:13:55,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:13:55,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 16:13:55,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:13:55,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 16:13:55,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-13 16:13:55,126 INFO L87 Difference]: Start difference. First operand 132231 states and 187144 transitions. Second operand has 10 states, 10 states have (on average 11.0) internal successors, (110), 10 states have internal predecessors, (110), 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)