./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/pals_lcr.7.1.ufo.BOUNDED-14.pals+Problem12_label05.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62fa5031-aa0f-498c-90ae-ab93631f92d6/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62fa5031-aa0f-498c-90ae-ab93631f92d6/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62fa5031-aa0f-498c-90ae-ab93631f92d6/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62fa5031-aa0f-498c-90ae-ab93631f92d6/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/pals_lcr.7.1.ufo.BOUNDED-14.pals+Problem12_label05.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62fa5031-aa0f-498c-90ae-ab93631f92d6/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62fa5031-aa0f-498c-90ae-ab93631f92d6/bin/uautomizer-verify-jihMAELWvX --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 616bab40818b87d728a052729e2d9dd8669a50a14a8b23186662b937cbcc108d --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 16:20:11,173 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 16:20:11,290 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62fa5031-aa0f-498c-90ae-ab93631f92d6/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 16:20:11,296 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 16:20:11,298 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 16:20:11,332 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 16:20:11,334 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 16:20:11,334 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 16:20:11,335 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 16:20:11,336 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 16:20:11,337 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 16:20:11,337 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 16:20:11,338 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 16:20:11,338 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 16:20:11,339 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 16:20:11,341 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 16:20:11,341 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 16:20:11,341 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 16:20:11,342 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 16:20:11,342 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 16:20:11,342 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 16:20:11,346 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 16:20:11,347 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 16:20:11,347 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 16:20:11,347 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 16:20:11,347 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 16:20:11,347 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 16:20:11,348 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 16:20:11,348 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 16:20:11,348 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 16:20:11,348 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 16:20:11,349 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 16:20:11,349 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:20:11,349 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 16:20:11,349 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 16:20:11,350 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 16:20:11,350 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 16:20:11,351 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 16:20:11,352 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 16:20:11,352 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 16:20:11,352 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 16:20:11,353 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 16:20:11,353 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62fa5031-aa0f-498c-90ae-ab93631f92d6/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62fa5031-aa0f-498c-90ae-ab93631f92d6/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 616bab40818b87d728a052729e2d9dd8669a50a14a8b23186662b937cbcc108d [2024-11-08 16:20:11,667 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 16:20:11,694 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 16:20:11,697 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 16:20:11,698 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 16:20:11,699 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 16:20:11,700 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62fa5031-aa0f-498c-90ae-ab93631f92d6/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/combinations/pals_lcr.7.1.ufo.BOUNDED-14.pals+Problem12_label05.c Unable to find full path for "g++" [2024-11-08 16:20:13,727 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 16:20:14,255 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 16:20:14,256 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62fa5031-aa0f-498c-90ae-ab93631f92d6/sv-benchmarks/c/combinations/pals_lcr.7.1.ufo.BOUNDED-14.pals+Problem12_label05.c [2024-11-08 16:20:14,295 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62fa5031-aa0f-498c-90ae-ab93631f92d6/bin/uautomizer-verify-jihMAELWvX/data/aa01cab1b/941bf436a8a343729acb374b2ea063ac/FLAGa32ed8780 [2024-11-08 16:20:14,310 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62fa5031-aa0f-498c-90ae-ab93631f92d6/bin/uautomizer-verify-jihMAELWvX/data/aa01cab1b/941bf436a8a343729acb374b2ea063ac [2024-11-08 16:20:14,312 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 16:20:14,314 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 16:20:14,315 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 16:20:14,316 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 16:20:14,321 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 16:20:14,322 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:20:14" (1/1) ... [2024-11-08 16:20:14,323 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46e9cb94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:20:14, skipping insertion in model container [2024-11-08 16:20:14,324 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:20:14" (1/1) ... [2024-11-08 16:20:14,469 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 16:20:14,916 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_62fa5031-aa0f-498c-90ae-ab93631f92d6/sv-benchmarks/c/combinations/pals_lcr.7.1.ufo.BOUNDED-14.pals+Problem12_label05.c[20463,20476] [2024-11-08 16:20:15,002 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_62fa5031-aa0f-498c-90ae-ab93631f92d6/sv-benchmarks/c/combinations/pals_lcr.7.1.ufo.BOUNDED-14.pals+Problem12_label05.c[27399,27412] [2024-11-08 16:20:16,039 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:20:16,054 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 16:20:16,127 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_62fa5031-aa0f-498c-90ae-ab93631f92d6/sv-benchmarks/c/combinations/pals_lcr.7.1.ufo.BOUNDED-14.pals+Problem12_label05.c[20463,20476] [2024-11-08 16:20:16,144 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_62fa5031-aa0f-498c-90ae-ab93631f92d6/sv-benchmarks/c/combinations/pals_lcr.7.1.ufo.BOUNDED-14.pals+Problem12_label05.c[27399,27412] [2024-11-08 16:20:16,725 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:20:16,757 INFO L204 MainTranslator]: Completed translation [2024-11-08 16:20:16,758 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:20:16 WrapperNode [2024-11-08 16:20:16,758 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 16:20:16,759 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 16:20:16,759 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 16:20:16,760 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 16:20:16,767 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:20:16" (1/1) ... [2024-11-08 16:20:16,826 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:20:16" (1/1) ... [2024-11-08 16:20:17,257 INFO L138 Inliner]: procedures = 38, calls = 24, calls flagged for inlining = 19, calls inlined = 19, statements flattened = 5220 [2024-11-08 16:20:17,258 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 16:20:17,258 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 16:20:17,258 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 16:20:17,259 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 16:20:17,275 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:20:16" (1/1) ... [2024-11-08 16:20:17,275 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:20:16" (1/1) ... [2024-11-08 16:20:17,353 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:20:16" (1/1) ... [2024-11-08 16:20:17,636 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]. [2024-11-08 16:20:17,636 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:20:16" (1/1) ... [2024-11-08 16:20:17,637 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:20:16" (1/1) ... [2024-11-08 16:20:17,835 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:20:16" (1/1) ... [2024-11-08 16:20:17,870 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:20:16" (1/1) ... [2024-11-08 16:20:17,891 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:20:16" (1/1) ... [2024-11-08 16:20:17,908 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:20:16" (1/1) ... [2024-11-08 16:20:17,959 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 16:20:17,959 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 16:20:17,960 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 16:20:17,960 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 16:20:17,960 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:20:16" (1/1) ... [2024-11-08 16:20:17,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:20:17,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62fa5031-aa0f-498c-90ae-ab93631f92d6/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:20:17,999 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62fa5031-aa0f-498c-90ae-ab93631f92d6/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 16:20:18,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62fa5031-aa0f-498c-90ae-ab93631f92d6/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 16:20:18,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 16:20:18,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 16:20:18,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 16:20:18,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 16:20:18,157 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 16:20:18,161 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 16:20:23,979 INFO L? ?]: Removed 755 outVars from TransFormulas that were not future-live. [2024-11-08 16:20:23,979 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 16:20:24,010 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 16:20:24,010 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 16:20:24,010 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:20:24 BoogieIcfgContainer [2024-11-08 16:20:24,011 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 16:20:24,013 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 16:20:24,013 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 16:20:24,016 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 16:20:24,017 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 04:20:14" (1/3) ... [2024-11-08 16:20:24,017 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e533916 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:20:24, skipping insertion in model container [2024-11-08 16:20:24,018 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:20:16" (2/3) ... [2024-11-08 16:20:24,018 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e533916 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:20:24, skipping insertion in model container [2024-11-08 16:20:24,018 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:20:24" (3/3) ... [2024-11-08 16:20:24,023 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.7.1.ufo.BOUNDED-14.pals+Problem12_label05.c [2024-11-08 16:20:24,041 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 16:20:24,041 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-08 16:20:24,147 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 16:20:24,155 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;@69555cb5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 16:20:24,155 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-08 16:20:24,163 INFO L276 IsEmpty]: Start isEmpty. Operand has 931 states, 928 states have (on average 1.9030172413793103) internal successors, (1766), 930 states have internal predecessors, (1766), 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) [2024-11-08 16:20:24,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-08 16:20:24,173 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:20:24,174 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] [2024-11-08 16:20:24,175 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:20:24,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:20:24,182 INFO L85 PathProgramCache]: Analyzing trace with hash -691461076, now seen corresponding path program 1 times [2024-11-08 16:20:24,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:20:24,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604241705] [2024-11-08 16:20:24,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:20:24,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:20:24,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:20:24,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:20:24,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:20:24,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604241705] [2024-11-08 16:20:24,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604241705] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:20:24,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:20:24,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 16:20:24,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981122689] [2024-11-08 16:20:24,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:20:24,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 16:20:24,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:20:24,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 16:20:24,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 16:20:24,529 INFO L87 Difference]: Start difference. First operand has 931 states, 928 states have (on average 1.9030172413793103) internal successors, (1766), 930 states have internal predecessors, (1766), 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 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 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) [2024-11-08 16:20:24,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:20:24,625 INFO L93 Difference]: Finished difference Result 1806 states and 3424 transitions. [2024-11-08 16:20:24,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 16:20:24,627 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 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 29 [2024-11-08 16:20:24,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:20:24,644 INFO L225 Difference]: With dead ends: 1806 [2024-11-08 16:20:24,645 INFO L226 Difference]: Without dead ends: 865 [2024-11-08 16:20:24,650 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 16:20:24,653 INFO L432 NwaCegarLoop]: 1701 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1701 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:20:24,655 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1701 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:20:24,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2024-11-08 16:20:24,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 865. [2024-11-08 16:20:24,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 863 states have (on average 1.8922363847045192) internal successors, (1633), 864 states have internal predecessors, (1633), 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) [2024-11-08 16:20:24,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1633 transitions. [2024-11-08 16:20:24,767 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1633 transitions. Word has length 29 [2024-11-08 16:20:24,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:20:24,767 INFO L471 AbstractCegarLoop]: Abstraction has 865 states and 1633 transitions. [2024-11-08 16:20:24,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 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) [2024-11-08 16:20:24,768 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1633 transitions. [2024-11-08 16:20:24,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-08 16:20:24,769 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:20:24,769 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] [2024-11-08 16:20:24,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 16:20:24,770 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:20:24,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:20:24,771 INFO L85 PathProgramCache]: Analyzing trace with hash 1798067886, now seen corresponding path program 1 times [2024-11-08 16:20:24,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:20:24,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594423550] [2024-11-08 16:20:24,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:20:24,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:20:24,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:20:25,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:20:25,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:20:25,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594423550] [2024-11-08 16:20:25,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594423550] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:20:25,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:20:25,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 16:20:25,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542784999] [2024-11-08 16:20:25,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:20:25,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:20:25,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:20:25,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:20:25,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:20:25,184 INFO L87 Difference]: Start difference. First operand 865 states and 1633 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 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) [2024-11-08 16:20:25,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:20:25,369 INFO L93 Difference]: Finished difference Result 924 states and 1725 transitions. [2024-11-08 16:20:25,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:20:25,369 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 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 29 [2024-11-08 16:20:25,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:20:25,373 INFO L225 Difference]: With dead ends: 924 [2024-11-08 16:20:25,373 INFO L226 Difference]: Without dead ends: 865 [2024-11-08 16:20:25,374 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 [2024-11-08 16:20:25,375 INFO L432 NwaCegarLoop]: 1631 mSDtfsCounter, 0 mSDsluCounter, 4838 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6469 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:20:25,376 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6469 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:20:25,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2024-11-08 16:20:25,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 865. [2024-11-08 16:20:25,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 863 states have (on average 1.8342989571263035) internal successors, (1583), 864 states have internal predecessors, (1583), 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) [2024-11-08 16:20:25,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1583 transitions. [2024-11-08 16:20:25,404 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1583 transitions. Word has length 29 [2024-11-08 16:20:25,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:20:25,405 INFO L471 AbstractCegarLoop]: Abstraction has 865 states and 1583 transitions. [2024-11-08 16:20:25,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 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) [2024-11-08 16:20:25,406 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1583 transitions. [2024-11-08 16:20:25,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-08 16:20:25,411 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:20:25,411 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] [2024-11-08 16:20:25,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 16:20:25,412 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:20:25,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:20:25,413 INFO L85 PathProgramCache]: Analyzing trace with hash -1503453500, now seen corresponding path program 1 times [2024-11-08 16:20:25,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:20:25,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080614035] [2024-11-08 16:20:25,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:20:25,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:20:25,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:20:25,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:20:25,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:20:25,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080614035] [2024-11-08 16:20:25,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080614035] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:20:25,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:20:25,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:20:25,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148588414] [2024-11-08 16:20:25,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:20:25,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:20:25,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:20:25,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:20:25,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:20:25,786 INFO L87 Difference]: Start difference. First operand 865 states and 1583 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2024-11-08 16:20:34,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:20:34,005 INFO L93 Difference]: Finished difference Result 3120 states and 5892 transitions. [2024-11-08 16:20:34,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 16:20:34,006 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 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 60 [2024-11-08 16:20:34,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:20:34,023 INFO L225 Difference]: With dead ends: 3120 [2024-11-08 16:20:34,023 INFO L226 Difference]: Without dead ends: 2367 [2024-11-08 16:20:34,029 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:20:34,030 INFO L432 NwaCegarLoop]: 837 mSDtfsCounter, 2469 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 5518 mSolverCounterSat, 1100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2469 SdHoareTripleChecker+Valid, 855 SdHoareTripleChecker+Invalid, 6618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1100 IncrementalHoareTripleChecker+Valid, 5518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:20:34,031 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2469 Valid, 855 Invalid, 6618 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1100 Valid, 5518 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time] [2024-11-08 16:20:34,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2367 states. [2024-11-08 16:20:34,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2367 to 2367. [2024-11-08 16:20:34,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2367 states, 2365 states have (on average 1.5682875264270613) internal successors, (3709), 2366 states have internal predecessors, (3709), 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) [2024-11-08 16:20:34,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2367 states to 2367 states and 3709 transitions. [2024-11-08 16:20:34,136 INFO L78 Accepts]: Start accepts. Automaton has 2367 states and 3709 transitions. Word has length 60 [2024-11-08 16:20:34,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:20:34,136 INFO L471 AbstractCegarLoop]: Abstraction has 2367 states and 3709 transitions. [2024-11-08 16:20:34,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2024-11-08 16:20:34,137 INFO L276 IsEmpty]: Start isEmpty. Operand 2367 states and 3709 transitions. [2024-11-08 16:20:34,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-08 16:20:34,143 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:20:34,143 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] [2024-11-08 16:20:34,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 16:20:34,146 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:20:34,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:20:34,147 INFO L85 PathProgramCache]: Analyzing trace with hash 155952879, now seen corresponding path program 1 times [2024-11-08 16:20:34,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:20:34,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967574863] [2024-11-08 16:20:34,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:20:34,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:20:34,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:20:34,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:20:34,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:20:34,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967574863] [2024-11-08 16:20:34,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967574863] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:20:34,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:20:34,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 16:20:34,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160060075] [2024-11-08 16:20:34,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:20:34,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 16:20:34,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:20:34,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 16:20:34,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-08 16:20:34,572 INFO L87 Difference]: Start difference. First operand 2367 states and 3709 transitions. Second operand has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 9 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) [2024-11-08 16:20:35,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:20:35,140 INFO L93 Difference]: Finished difference Result 3137 states and 4941 transitions. [2024-11-08 16:20:35,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 16:20:35,141 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 9 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 [2024-11-08 16:20:35,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:20:35,152 INFO L225 Difference]: With dead ends: 3137 [2024-11-08 16:20:35,153 INFO L226 Difference]: Without dead ends: 3082 [2024-11-08 16:20:35,154 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2024-11-08 16:20:35,155 INFO L432 NwaCegarLoop]: 1579 mSDtfsCounter, 11516 mSDsluCounter, 3602 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11516 SdHoareTripleChecker+Valid, 5181 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 16:20:35,156 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11516 Valid, 5181 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 16:20:35,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3082 states. [2024-11-08 16:20:35,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3082 to 2420. [2024-11-08 16:20:35,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2420 states, 2418 states have (on average 1.5690653432588917) internal successors, (3794), 2419 states have internal predecessors, (3794), 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) [2024-11-08 16:20:35,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2420 states to 2420 states and 3794 transitions. [2024-11-08 16:20:35,216 INFO L78 Accepts]: Start accepts. Automaton has 2420 states and 3794 transitions. Word has length 78 [2024-11-08 16:20:35,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:20:35,216 INFO L471 AbstractCegarLoop]: Abstraction has 2420 states and 3794 transitions. [2024-11-08 16:20:35,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 9 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) [2024-11-08 16:20:35,217 INFO L276 IsEmpty]: Start isEmpty. Operand 2420 states and 3794 transitions. [2024-11-08 16:20:35,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-08 16:20:35,218 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:20:35,219 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] [2024-11-08 16:20:35,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 16:20:35,219 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:20:35,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:20:35,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1868830113, now seen corresponding path program 1 times [2024-11-08 16:20:35,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:20:35,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154358902] [2024-11-08 16:20:35,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:20:35,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:20:35,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:20:35,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:20:35,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:20:35,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154358902] [2024-11-08 16:20:35,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154358902] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:20:35,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:20:35,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:20:35,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643674422] [2024-11-08 16:20:35,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:20:35,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:20:35,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:20:35,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:20:35,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:20:35,338 INFO L87 Difference]: Start difference. First operand 2420 states and 3794 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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) [2024-11-08 16:20:35,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:20:35,387 INFO L93 Difference]: Finished difference Result 2625 states and 4121 transitions. [2024-11-08 16:20:35,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:20:35,388 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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 80 [2024-11-08 16:20:35,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:20:35,397 INFO L225 Difference]: With dead ends: 2625 [2024-11-08 16:20:35,397 INFO L226 Difference]: Without dead ends: 2517 [2024-11-08 16:20:35,398 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 [2024-11-08 16:20:35,399 INFO L432 NwaCegarLoop]: 1581 mSDtfsCounter, 1498 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1498 SdHoareTripleChecker+Valid, 1664 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:20:35,399 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1498 Valid, 1664 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:20:35,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2517 states. [2024-11-08 16:20:35,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2517 to 2515. [2024-11-08 16:20:35,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2515 states, 2513 states have (on average 1.5694389176283328) internal successors, (3944), 2514 states have internal predecessors, (3944), 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) [2024-11-08 16:20:35,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2515 states to 2515 states and 3944 transitions. [2024-11-08 16:20:35,458 INFO L78 Accepts]: Start accepts. Automaton has 2515 states and 3944 transitions. Word has length 80 [2024-11-08 16:20:35,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:20:35,458 INFO L471 AbstractCegarLoop]: Abstraction has 2515 states and 3944 transitions. [2024-11-08 16:20:35,459 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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) [2024-11-08 16:20:35,459 INFO L276 IsEmpty]: Start isEmpty. Operand 2515 states and 3944 transitions. [2024-11-08 16:20:35,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-08 16:20:35,460 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:20:35,460 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] [2024-11-08 16:20:35,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 16:20:35,461 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:20:35,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:20:35,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1802336601, now seen corresponding path program 1 times [2024-11-08 16:20:35,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:20:35,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994699664] [2024-11-08 16:20:35,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:20:35,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:20:35,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:20:36,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:20:36,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:20:36,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994699664] [2024-11-08 16:20:36,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994699664] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:20:36,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:20:36,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 16:20:36,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628387452] [2024-11-08 16:20:36,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:20:36,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 16:20:36,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:20:36,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 16:20:36,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-08 16:20:36,049 INFO L87 Difference]: Start difference. First operand 2515 states and 3944 transitions. Second operand has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 9 states have internal predecessors, (80), 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) [2024-11-08 16:20:36,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:20:36,518 INFO L93 Difference]: Finished difference Result 2720 states and 4268 transitions. [2024-11-08 16:20:36,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 16:20:36,518 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 9 states have internal predecessors, (80), 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 80 [2024-11-08 16:20:36,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:20:36,527 INFO L225 Difference]: With dead ends: 2720 [2024-11-08 16:20:36,528 INFO L226 Difference]: Without dead ends: 2517 [2024-11-08 16:20:36,529 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2024-11-08 16:20:36,530 INFO L432 NwaCegarLoop]: 1574 mSDtfsCounter, 9054 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9054 SdHoareTripleChecker+Valid, 2084 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:20:36,530 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9054 Valid, 2084 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:20:36,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2517 states. [2024-11-08 16:20:36,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2517 to 2515. [2024-11-08 16:20:36,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2515 states, 2513 states have (on average 1.5686430561082372) internal successors, (3942), 2514 states have internal predecessors, (3942), 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) [2024-11-08 16:20:36,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2515 states to 2515 states and 3942 transitions. [2024-11-08 16:20:36,603 INFO L78 Accepts]: Start accepts. Automaton has 2515 states and 3942 transitions. Word has length 80 [2024-11-08 16:20:36,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:20:36,603 INFO L471 AbstractCegarLoop]: Abstraction has 2515 states and 3942 transitions. [2024-11-08 16:20:36,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 9 states have internal predecessors, (80), 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) [2024-11-08 16:20:36,603 INFO L276 IsEmpty]: Start isEmpty. Operand 2515 states and 3942 transitions. [2024-11-08 16:20:36,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-08 16:20:36,604 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:20:36,605 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] [2024-11-08 16:20:36,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 16:20:36,605 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:20:36,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:20:36,605 INFO L85 PathProgramCache]: Analyzing trace with hash -452582696, now seen corresponding path program 1 times [2024-11-08 16:20:36,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:20:36,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109750854] [2024-11-08 16:20:36,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:20:36,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:20:36,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:20:37,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:20:37,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:20:37,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109750854] [2024-11-08 16:20:37,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109750854] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:20:37,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:20:37,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 16:20:37,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906856442] [2024-11-08 16:20:37,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:20:37,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 16:20:37,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:20:37,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 16:20:37,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-08 16:20:37,016 INFO L87 Difference]: Start difference. First operand 2515 states and 3942 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 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) [2024-11-08 16:20:37,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:20:37,120 INFO L93 Difference]: Finished difference Result 2523 states and 3951 transitions. [2024-11-08 16:20:37,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 16:20:37,121 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 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 [2024-11-08 16:20:37,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:20:37,130 INFO L225 Difference]: With dead ends: 2523 [2024-11-08 16:20:37,131 INFO L226 Difference]: Without dead ends: 2521 [2024-11-08 16:20:37,133 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-08 16:20:37,133 INFO L432 NwaCegarLoop]: 1577 mSDtfsCounter, 0 mSDsluCounter, 9449 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11026 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:20:37,134 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11026 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:20:37,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2521 states. [2024-11-08 16:20:37,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2521 to 2521. [2024-11-08 16:20:37,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2521 states, 2519 states have (on average 1.5668916236601826) internal successors, (3947), 2520 states have internal predecessors, (3947), 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) [2024-11-08 16:20:37,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2521 states to 2521 states and 3947 transitions. [2024-11-08 16:20:37,188 INFO L78 Accepts]: Start accepts. Automaton has 2521 states and 3947 transitions. Word has length 81 [2024-11-08 16:20:37,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:20:37,188 INFO L471 AbstractCegarLoop]: Abstraction has 2521 states and 3947 transitions. [2024-11-08 16:20:37,188 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 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) [2024-11-08 16:20:37,188 INFO L276 IsEmpty]: Start isEmpty. Operand 2521 states and 3947 transitions. [2024-11-08 16:20:37,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-08 16:20:37,190 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:20:37,190 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] [2024-11-08 16:20:37,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 16:20:37,190 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:20:37,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:20:37,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1418268327, now seen corresponding path program 1 times [2024-11-08 16:20:37,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:20:37,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085906574] [2024-11-08 16:20:37,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:20:37,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:20:37,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:20:37,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:20:37,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:20:37,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085906574] [2024-11-08 16:20:37,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085906574] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:20:37,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:20:37,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:20:37,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541116807] [2024-11-08 16:20:37,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:20:37,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:20:37,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:20:37,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:20:37,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:20:37,300 INFO L87 Difference]: Start difference. First operand 2521 states and 3947 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 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) [2024-11-08 16:20:37,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:20:37,355 INFO L93 Difference]: Finished difference Result 2744 states and 4293 transitions. [2024-11-08 16:20:37,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:20:37,356 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 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 [2024-11-08 16:20:37,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:20:37,364 INFO L225 Difference]: With dead ends: 2744 [2024-11-08 16:20:37,365 INFO L226 Difference]: Without dead ends: 2630 [2024-11-08 16:20:37,366 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 [2024-11-08 16:20:37,367 INFO L432 NwaCegarLoop]: 1655 mSDtfsCounter, 1516 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1516 SdHoareTripleChecker+Valid, 1744 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 [2024-11-08 16:20:37,367 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1516 Valid, 1744 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:20:37,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2630 states. [2024-11-08 16:20:37,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2630 to 2628. [2024-11-08 16:20:37,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2628 states, 2626 states have (on average 1.5654988575780655) internal successors, (4111), 2627 states have internal predecessors, (4111), 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) [2024-11-08 16:20:37,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2628 states to 2628 states and 4111 transitions. [2024-11-08 16:20:37,427 INFO L78 Accepts]: Start accepts. Automaton has 2628 states and 4111 transitions. Word has length 82 [2024-11-08 16:20:37,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:20:37,427 INFO L471 AbstractCegarLoop]: Abstraction has 2628 states and 4111 transitions. [2024-11-08 16:20:37,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 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) [2024-11-08 16:20:37,428 INFO L276 IsEmpty]: Start isEmpty. Operand 2628 states and 4111 transitions. [2024-11-08 16:20:37,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-08 16:20:37,429 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:20:37,429 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] [2024-11-08 16:20:37,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 16:20:37,429 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:20:37,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:20:37,430 INFO L85 PathProgramCache]: Analyzing trace with hash -934629465, now seen corresponding path program 1 times [2024-11-08 16:20:37,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:20:37,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127007817] [2024-11-08 16:20:37,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:20:37,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:20:37,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:20:37,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:20:37,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:20:37,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127007817] [2024-11-08 16:20:37,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127007817] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:20:37,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:20:37,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:20:37,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532075260] [2024-11-08 16:20:37,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:20:37,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:20:37,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:20:37,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:20:37,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:20:37,519 INFO L87 Difference]: Start difference. First operand 2628 states and 4111 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 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) [2024-11-08 16:20:37,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:20:37,579 INFO L93 Difference]: Finished difference Result 3230 states and 5043 transitions. [2024-11-08 16:20:37,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:20:37,580 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 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 [2024-11-08 16:20:37,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:20:37,589 INFO L225 Difference]: With dead ends: 3230 [2024-11-08 16:20:37,589 INFO L226 Difference]: Without dead ends: 2917 [2024-11-08 16:20:37,590 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 [2024-11-08 16:20:37,591 INFO L432 NwaCegarLoop]: 1657 mSDtfsCounter, 1514 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1514 SdHoareTripleChecker+Valid, 1750 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 [2024-11-08 16:20:37,591 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1514 Valid, 1750 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:20:37,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2917 states. [2024-11-08 16:20:37,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2917 to 2915. [2024-11-08 16:20:37,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2915 states, 2913 states have (on average 1.5616203226913834) internal successors, (4549), 2914 states have internal predecessors, (4549), 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) [2024-11-08 16:20:37,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2915 states to 2915 states and 4549 transitions. [2024-11-08 16:20:37,657 INFO L78 Accepts]: Start accepts. Automaton has 2915 states and 4549 transitions. Word has length 82 [2024-11-08 16:20:37,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:20:37,658 INFO L471 AbstractCegarLoop]: Abstraction has 2915 states and 4549 transitions. [2024-11-08 16:20:37,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 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) [2024-11-08 16:20:37,658 INFO L276 IsEmpty]: Start isEmpty. Operand 2915 states and 4549 transitions. [2024-11-08 16:20:37,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-08 16:20:37,659 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:20:37,659 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] [2024-11-08 16:20:37,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 16:20:37,660 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:20:37,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:20:37,660 INFO L85 PathProgramCache]: Analyzing trace with hash -771714905, now seen corresponding path program 1 times [2024-11-08 16:20:37,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:20:37,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719441492] [2024-11-08 16:20:37,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:20:37,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:20:37,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:20:37,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:20:37,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:20:37,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719441492] [2024-11-08 16:20:37,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719441492] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:20:37,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:20:37,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:20:37,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676650581] [2024-11-08 16:20:37,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:20:37,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:20:37,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:20:37,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:20:37,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:20:37,747 INFO L87 Difference]: Start difference. First operand 2915 states and 4549 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 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) [2024-11-08 16:20:37,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:20:37,818 INFO L93 Difference]: Finished difference Result 4067 states and 6315 transitions. [2024-11-08 16:20:37,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:20:37,819 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 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 [2024-11-08 16:20:37,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:20:37,830 INFO L225 Difference]: With dead ends: 4067 [2024-11-08 16:20:37,830 INFO L226 Difference]: Without dead ends: 3467 [2024-11-08 16:20:37,832 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 [2024-11-08 16:20:37,833 INFO L432 NwaCegarLoop]: 1655 mSDtfsCounter, 1512 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1512 SdHoareTripleChecker+Valid, 1752 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 [2024-11-08 16:20:37,837 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1512 Valid, 1752 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:20:37,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3467 states. [2024-11-08 16:20:37,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3467 to 3465. [2024-11-08 16:20:37,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3465 states, 3463 states have (on average 1.5526999711233036) internal successors, (5377), 3464 states have internal predecessors, (5377), 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) [2024-11-08 16:20:37,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3465 states to 3465 states and 5377 transitions. [2024-11-08 16:20:37,925 INFO L78 Accepts]: Start accepts. Automaton has 3465 states and 5377 transitions. Word has length 82 [2024-11-08 16:20:37,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:20:37,925 INFO L471 AbstractCegarLoop]: Abstraction has 3465 states and 5377 transitions. [2024-11-08 16:20:37,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 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) [2024-11-08 16:20:37,926 INFO L276 IsEmpty]: Start isEmpty. Operand 3465 states and 5377 transitions. [2024-11-08 16:20:37,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-08 16:20:37,927 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:20:37,927 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] [2024-11-08 16:20:37,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 16:20:37,928 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:20:37,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:20:37,929 INFO L85 PathProgramCache]: Analyzing trace with hash -507858521, now seen corresponding path program 1 times [2024-11-08 16:20:37,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:20:37,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702668950] [2024-11-08 16:20:37,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:20:37,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:20:38,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:20:38,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:20:38,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:20:38,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702668950] [2024-11-08 16:20:38,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702668950] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:20:38,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:20:38,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:20:38,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29821609] [2024-11-08 16:20:38,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:20:38,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:20:38,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:20:38,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:20:38,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:20:38,094 INFO L87 Difference]: Start difference. First operand 3465 states and 5377 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 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) [2024-11-08 16:20:38,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:20:38,179 INFO L93 Difference]: Finished difference Result 5669 states and 8715 transitions. [2024-11-08 16:20:38,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:20:38,179 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 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 [2024-11-08 16:20:38,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:20:38,190 INFO L225 Difference]: With dead ends: 5669 [2024-11-08 16:20:38,190 INFO L226 Difference]: Without dead ends: 4519 [2024-11-08 16:20:38,194 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 [2024-11-08 16:20:38,195 INFO L432 NwaCegarLoop]: 1653 mSDtfsCounter, 1510 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1510 SdHoareTripleChecker+Valid, 1754 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 [2024-11-08 16:20:38,195 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1510 Valid, 1754 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:20:38,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4519 states. [2024-11-08 16:20:38,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4519 to 4517. [2024-11-08 16:20:38,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4517 states, 4515 states have (on average 1.5364341085271318) internal successors, (6937), 4516 states have internal predecessors, (6937), 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) [2024-11-08 16:20:38,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4517 states to 4517 states and 6937 transitions. [2024-11-08 16:20:38,325 INFO L78 Accepts]: Start accepts. Automaton has 4517 states and 6937 transitions. Word has length 82 [2024-11-08 16:20:38,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:20:38,326 INFO L471 AbstractCegarLoop]: Abstraction has 4517 states and 6937 transitions. [2024-11-08 16:20:38,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 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) [2024-11-08 16:20:38,326 INFO L276 IsEmpty]: Start isEmpty. Operand 4517 states and 6937 transitions. [2024-11-08 16:20:38,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-08 16:20:38,327 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:20:38,327 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] [2024-11-08 16:20:38,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 16:20:38,328 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:20:38,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:20:38,329 INFO L85 PathProgramCache]: Analyzing trace with hash -1485065305, now seen corresponding path program 1 times [2024-11-08 16:20:38,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:20:38,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395250822] [2024-11-08 16:20:38,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:20:38,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:20:38,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:20:38,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:20:38,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:20:38,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395250822] [2024-11-08 16:20:38,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395250822] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:20:38,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:20:38,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:20:38,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769642644] [2024-11-08 16:20:38,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:20:38,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:20:38,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:20:38,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:20:38,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:20:38,416 INFO L87 Difference]: Start difference. First operand 4517 states and 6937 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 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) [2024-11-08 16:20:38,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:20:38,607 INFO L93 Difference]: Finished difference Result 8729 states and 13227 transitions. [2024-11-08 16:20:38,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:20:38,607 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 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 [2024-11-08 16:20:38,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:20:38,620 INFO L225 Difference]: With dead ends: 8729 [2024-11-08 16:20:38,620 INFO L226 Difference]: Without dead ends: 6527 [2024-11-08 16:20:38,624 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 [2024-11-08 16:20:38,624 INFO L432 NwaCegarLoop]: 1641 mSDtfsCounter, 1506 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1506 SdHoareTripleChecker+Valid, 1750 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 [2024-11-08 16:20:38,625 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1506 Valid, 1750 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:20:38,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6527 states. [2024-11-08 16:20:38,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6527 to 6525. [2024-11-08 16:20:38,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6525 states, 6523 states have (on average 1.5123409474168328) internal successors, (9865), 6524 states have internal predecessors, (9865), 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) [2024-11-08 16:20:38,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6525 states to 6525 states and 9865 transitions. [2024-11-08 16:20:38,803 INFO L78 Accepts]: Start accepts. Automaton has 6525 states and 9865 transitions. Word has length 82 [2024-11-08 16:20:38,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:20:38,804 INFO L471 AbstractCegarLoop]: Abstraction has 6525 states and 9865 transitions. [2024-11-08 16:20:38,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 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) [2024-11-08 16:20:38,804 INFO L276 IsEmpty]: Start isEmpty. Operand 6525 states and 9865 transitions. [2024-11-08 16:20:38,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-08 16:20:38,805 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:20:38,805 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] [2024-11-08 16:20:38,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 16:20:38,805 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:20:38,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:20:38,806 INFO L85 PathProgramCache]: Analyzing trace with hash 295867559, now seen corresponding path program 1 times [2024-11-08 16:20:38,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:20:38,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628878932] [2024-11-08 16:20:38,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:20:38,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:20:38,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:20:38,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:20:38,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:20:38,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628878932] [2024-11-08 16:20:38,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628878932] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:20:38,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:20:38,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:20:38,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730400338] [2024-11-08 16:20:38,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:20:38,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:20:38,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:20:38,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:20:38,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:20:38,891 INFO L87 Difference]: Start difference. First operand 6525 states and 9865 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 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) [2024-11-08 16:20:39,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:20:39,109 INFO L93 Difference]: Finished difference Result 14561 states and 21675 transitions. [2024-11-08 16:20:39,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:20:39,110 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 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 [2024-11-08 16:20:39,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:20:39,130 INFO L225 Difference]: With dead ends: 14561 [2024-11-08 16:20:39,130 INFO L226 Difference]: Without dead ends: 10351 [2024-11-08 16:20:39,137 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 [2024-11-08 16:20:39,138 INFO L432 NwaCegarLoop]: 1639 mSDtfsCounter, 1504 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1504 SdHoareTripleChecker+Valid, 1752 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 [2024-11-08 16:20:39,139 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1504 Valid, 1752 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:20:39,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10351 states. [2024-11-08 16:20:39,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10351 to 10349. [2024-11-08 16:20:39,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10349 states, 10347 states have (on average 1.4822653909345704) internal successors, (15337), 10348 states have internal predecessors, (15337), 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) [2024-11-08 16:20:39,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10349 states to 10349 states and 15337 transitions. [2024-11-08 16:20:39,587 INFO L78 Accepts]: Start accepts. Automaton has 10349 states and 15337 transitions. Word has length 82 [2024-11-08 16:20:39,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:20:39,587 INFO L471 AbstractCegarLoop]: Abstraction has 10349 states and 15337 transitions. [2024-11-08 16:20:39,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 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) [2024-11-08 16:20:39,587 INFO L276 IsEmpty]: Start isEmpty. Operand 10349 states and 15337 transitions. [2024-11-08 16:20:39,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-08 16:20:39,588 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:20:39,588 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] [2024-11-08 16:20:39,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 16:20:39,589 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:20:39,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:20:39,589 INFO L85 PathProgramCache]: Analyzing trace with hash 730403495, now seen corresponding path program 1 times [2024-11-08 16:20:39,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:20:39,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197472969] [2024-11-08 16:20:39,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:20:39,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:20:39,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:20:39,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:20:39,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:20:39,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197472969] [2024-11-08 16:20:39,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197472969] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:20:39,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:20:39,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:20:39,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89578601] [2024-11-08 16:20:39,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:20:39,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:20:39,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:20:39,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:20:39,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:20:39,680 INFO L87 Difference]: Start difference. First operand 10349 states and 15337 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 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) [2024-11-08 16:20:40,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:20:40,050 INFO L93 Difference]: Finished difference Result 25649 states and 37419 transitions. [2024-11-08 16:20:40,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:20:40,051 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 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 [2024-11-08 16:20:40,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:20:40,086 INFO L225 Difference]: With dead ends: 25649 [2024-11-08 16:20:40,087 INFO L226 Difference]: Without dead ends: 17615 [2024-11-08 16:20:40,098 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 [2024-11-08 16:20:40,099 INFO L432 NwaCegarLoop]: 1651 mSDtfsCounter, 1508 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1508 SdHoareTripleChecker+Valid, 1756 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 [2024-11-08 16:20:40,100 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1508 Valid, 1756 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:20:40,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17615 states. [2024-11-08 16:20:40,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17615 to 17613. [2024-11-08 16:20:40,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17613 states, 17611 states have (on average 1.4486968372040203) internal successors, (25513), 17612 states have internal predecessors, (25513), 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) [2024-11-08 16:20:40,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17613 states to 17613 states and 25513 transitions. [2024-11-08 16:20:40,940 INFO L78 Accepts]: Start accepts. Automaton has 17613 states and 25513 transitions. Word has length 82 [2024-11-08 16:20:40,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:20:40,941 INFO L471 AbstractCegarLoop]: Abstraction has 17613 states and 25513 transitions. [2024-11-08 16:20:40,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 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) [2024-11-08 16:20:40,941 INFO L276 IsEmpty]: Start isEmpty. Operand 17613 states and 25513 transitions. [2024-11-08 16:20:40,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-08 16:20:40,948 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:20:40,948 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 16:20:40,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 16:20:40,949 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:20:40,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:20:40,949 INFO L85 PathProgramCache]: Analyzing trace with hash -1168556832, now seen corresponding path program 1 times [2024-11-08 16:20:40,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:20:40,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960414974] [2024-11-08 16:20:40,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:20:40,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:20:41,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:20:41,379 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 16:20:41,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:20:41,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960414974] [2024-11-08 16:20:41,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960414974] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:20:41,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:20:41,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 16:20:41,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699574780] [2024-11-08 16:20:41,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:20:41,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 16:20:41,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:20:41,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 16:20:41,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-08 16:20:41,383 INFO L87 Difference]: Start difference. First operand 17613 states and 25513 transitions. Second operand has 9 states, 9 states have (on average 11.555555555555555) internal successors, (104), 9 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:20:43,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:20:43,866 INFO L93 Difference]: Finished difference Result 123293 states and 176625 transitions. [2024-11-08 16:20:43,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 16:20:43,867 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.555555555555555) internal successors, (104), 9 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2024-11-08 16:20:43,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:20:44,085 INFO L225 Difference]: With dead ends: 123293 [2024-11-08 16:20:44,085 INFO L226 Difference]: Without dead ends: 112539 [2024-11-08 16:20:44,118 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-08 16:20:44,118 INFO L432 NwaCegarLoop]: 1670 mSDtfsCounter, 9878 mSDsluCounter, 3038 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9878 SdHoareTripleChecker+Valid, 4708 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:20:44,119 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9878 Valid, 4708 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 16:20:44,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112539 states. [2024-11-08 16:20:45,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112539 to 30669. [2024-11-08 16:20:45,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30669 states, 30667 states have (on average 1.4350604884729514) internal successors, (44009), 30668 states have internal predecessors, (44009), 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) [2024-11-08 16:20:46,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30669 states to 30669 states and 44009 transitions. [2024-11-08 16:20:46,073 INFO L78 Accepts]: Start accepts. Automaton has 30669 states and 44009 transitions. Word has length 106 [2024-11-08 16:20:46,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:20:46,074 INFO L471 AbstractCegarLoop]: Abstraction has 30669 states and 44009 transitions. [2024-11-08 16:20:46,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.555555555555555) internal successors, (104), 9 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:20:46,074 INFO L276 IsEmpty]: Start isEmpty. Operand 30669 states and 44009 transitions. [2024-11-08 16:20:46,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-08 16:20:46,082 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:20:46,082 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 16:20:46,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 16:20:46,083 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:20:46,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:20:46,084 INFO L85 PathProgramCache]: Analyzing trace with hash 773512672, now seen corresponding path program 1 times [2024-11-08 16:20:46,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:20:46,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430362854] [2024-11-08 16:20:46,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:20:46,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:20:46,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:20:46,487 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-08 16:20:46,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:20:46,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430362854] [2024-11-08 16:20:46,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430362854] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:20:46,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:20:46,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 16:20:46,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863913123] [2024-11-08 16:20:46,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:20:46,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 16:20:46,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:20:46,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 16:20:46,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-08 16:20:46,493 INFO L87 Difference]: Start difference. First operand 30669 states and 44009 transitions. Second operand has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 9 states have internal predecessors, (102), 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) [2024-11-08 16:20:49,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:20:49,571 INFO L93 Difference]: Finished difference Result 138589 states and 198385 transitions. [2024-11-08 16:20:49,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 16:20:49,572 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 9 states have internal predecessors, (102), 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 106 [2024-11-08 16:20:49,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:20:49,856 INFO L225 Difference]: With dead ends: 138589 [2024-11-08 16:20:49,856 INFO L226 Difference]: Without dead ends: 123291 [2024-11-08 16:20:49,915 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-08 16:20:49,916 INFO L432 NwaCegarLoop]: 1669 mSDtfsCounter, 9882 mSDsluCounter, 2959 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9882 SdHoareTripleChecker+Valid, 4628 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:20:49,916 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9882 Valid, 4628 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 16:20:49,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123291 states. [2024-11-08 16:20:52,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123291 to 51341. [2024-11-08 16:20:52,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51341 states, 51339 states have (on average 1.4269268976801261) internal successors, (73257), 51340 states have internal predecessors, (73257), 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) [2024-11-08 16:20:52,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51341 states to 51341 states and 73257 transitions. [2024-11-08 16:20:52,887 INFO L78 Accepts]: Start accepts. Automaton has 51341 states and 73257 transitions. Word has length 106 [2024-11-08 16:20:52,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:20:52,887 INFO L471 AbstractCegarLoop]: Abstraction has 51341 states and 73257 transitions. [2024-11-08 16:20:52,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 9 states have internal predecessors, (102), 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) [2024-11-08 16:20:52,888 INFO L276 IsEmpty]: Start isEmpty. Operand 51341 states and 73257 transitions. [2024-11-08 16:20:52,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-08 16:20:52,897 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:20:52,897 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 16:20:52,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 16:20:52,897 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:20:52,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:20:52,898 INFO L85 PathProgramCache]: Analyzing trace with hash 936427232, now seen corresponding path program 1 times [2024-11-08 16:20:52,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:20:52,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015784913] [2024-11-08 16:20:52,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:20:52,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:20:52,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:20:53,183 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-08 16:20:53,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:20:53,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015784913] [2024-11-08 16:20:53,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015784913] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:20:53,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:20:53,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 16:20:53,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912823754] [2024-11-08 16:20:53,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:20:53,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 16:20:53,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:20:53,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 16:20:53,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-08 16:20:53,187 INFO L87 Difference]: Start difference. First operand 51341 states and 73257 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 9 states have internal predecessors, (100), 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) [2024-11-08 16:20:56,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:20:56,754 INFO L93 Difference]: Finished difference Result 153885 states and 220081 transitions. [2024-11-08 16:20:56,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 16:20:56,755 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 9 states have internal predecessors, (100), 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 106 [2024-11-08 16:20:56,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:20:56,999 INFO L225 Difference]: With dead ends: 153885 [2024-11-08 16:20:56,999 INFO L226 Difference]: Without dead ends: 138587 [2024-11-08 16:20:57,047 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-08 16:20:57,048 INFO L432 NwaCegarLoop]: 1667 mSDtfsCounter, 9905 mSDsluCounter, 2892 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9905 SdHoareTripleChecker+Valid, 4559 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:20:57,048 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9905 Valid, 4559 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:20:57,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138587 states. [2024-11-08 16:20:59,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138587 to 66637. [2024-11-08 16:20:59,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66637 states, 66635 states have (on average 1.4249718616342764) internal successors, (94953), 66636 states have internal predecessors, (94953), 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) [2024-11-08 16:21:00,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66637 states to 66637 states and 94953 transitions. [2024-11-08 16:21:00,033 INFO L78 Accepts]: Start accepts. Automaton has 66637 states and 94953 transitions. Word has length 106 [2024-11-08 16:21:00,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:21:00,033 INFO L471 AbstractCegarLoop]: Abstraction has 66637 states and 94953 transitions. [2024-11-08 16:21:00,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 9 states have internal predecessors, (100), 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) [2024-11-08 16:21:00,034 INFO L276 IsEmpty]: Start isEmpty. Operand 66637 states and 94953 transitions. [2024-11-08 16:21:00,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-08 16:21:00,042 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:21:00,042 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 16:21:00,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 16:21:00,042 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:21:00,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:21:00,043 INFO L85 PathProgramCache]: Analyzing trace with hash 1200283616, now seen corresponding path program 1 times [2024-11-08 16:21:00,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:21:00,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220972114] [2024-11-08 16:21:00,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:21:00,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:21:00,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:21:00,484 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-08 16:21:00,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:21:00,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220972114] [2024-11-08 16:21:00,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220972114] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:21:00,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:21:00,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 16:21:00,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840529866] [2024-11-08 16:21:00,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:21:00,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 16:21:00,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:21:00,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 16:21:00,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-08 16:21:00,487 INFO L87 Difference]: Start difference. First operand 66637 states and 94953 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 9 states have internal predecessors, (98), 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) [2024-11-08 16:21:04,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:21:04,589 INFO L93 Difference]: Finished difference Result 169181 states and 241777 transitions. [2024-11-08 16:21:04,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 16:21:04,590 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 9 states have internal predecessors, (98), 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 106 [2024-11-08 16:21:04,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:21:04,818 INFO L225 Difference]: With dead ends: 169181 [2024-11-08 16:21:04,818 INFO L226 Difference]: Without dead ends: 153883 [2024-11-08 16:21:04,848 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-08 16:21:04,849 INFO L432 NwaCegarLoop]: 1665 mSDtfsCounter, 9996 mSDsluCounter, 2858 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9996 SdHoareTripleChecker+Valid, 4523 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:21:04,849 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9996 Valid, 4523 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 16:21:04,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153883 states. [2024-11-08 16:21:08,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153883 to 81933. [2024-11-08 16:21:08,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81933 states, 81931 states have (on average 1.4237468113412506) internal successors, (116649), 81932 states have internal predecessors, (116649), 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) [2024-11-08 16:21:08,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81933 states to 81933 states and 116649 transitions. [2024-11-08 16:21:08,449 INFO L78 Accepts]: Start accepts. Automaton has 81933 states and 116649 transitions. Word has length 106 [2024-11-08 16:21:08,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:21:08,449 INFO L471 AbstractCegarLoop]: Abstraction has 81933 states and 116649 transitions. [2024-11-08 16:21:08,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 9 states have internal predecessors, (98), 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) [2024-11-08 16:21:08,450 INFO L276 IsEmpty]: Start isEmpty. Operand 81933 states and 116649 transitions. [2024-11-08 16:21:08,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-08 16:21:08,458 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:21:08,458 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 16:21:08,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 16:21:08,459 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:21:08,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:21:08,459 INFO L85 PathProgramCache]: Analyzing trace with hash 223076832, now seen corresponding path program 1 times [2024-11-08 16:21:08,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:21:08,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489542031] [2024-11-08 16:21:08,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:21:08,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:21:08,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:21:08,746 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-08 16:21:08,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:21:08,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489542031] [2024-11-08 16:21:08,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489542031] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:21:08,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:21:08,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 16:21:08,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509095494] [2024-11-08 16:21:08,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:21:08,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 16:21:08,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:21:08,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 16:21:08,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-08 16:21:08,750 INFO L87 Difference]: Start difference. First operand 81933 states and 116649 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 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) [2024-11-08 16:21:14,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:21:14,404 INFO L93 Difference]: Finished difference Result 184477 states and 263473 transitions. [2024-11-08 16:21:14,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 16:21:14,404 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 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 106 [2024-11-08 16:21:14,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:21:14,595 INFO L225 Difference]: With dead ends: 184477 [2024-11-08 16:21:14,595 INFO L226 Difference]: Without dead ends: 169179 [2024-11-08 16:21:14,626 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-08 16:21:14,627 INFO L432 NwaCegarLoop]: 1663 mSDtfsCounter, 10083 mSDsluCounter, 2900 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10083 SdHoareTripleChecker+Valid, 4563 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:21:14,627 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10083 Valid, 4563 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 16:21:14,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169179 states. [2024-11-08 16:21:18,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169179 to 97229. [2024-11-08 16:21:18,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97229 states, 97227 states have (on average 1.422907217131044) internal successors, (138345), 97228 states have internal predecessors, (138345), 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) [2024-11-08 16:21:18,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97229 states to 97229 states and 138345 transitions. [2024-11-08 16:21:18,354 INFO L78 Accepts]: Start accepts. Automaton has 97229 states and 138345 transitions. Word has length 106 [2024-11-08 16:21:18,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:21:18,354 INFO L471 AbstractCegarLoop]: Abstraction has 97229 states and 138345 transitions. [2024-11-08 16:21:18,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 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) [2024-11-08 16:21:18,355 INFO L276 IsEmpty]: Start isEmpty. Operand 97229 states and 138345 transitions. [2024-11-08 16:21:18,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-08 16:21:18,367 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:21:18,368 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 16:21:18,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-08 16:21:18,368 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:21:18,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:21:18,369 INFO L85 PathProgramCache]: Analyzing trace with hash 2004009696, now seen corresponding path program 1 times [2024-11-08 16:21:18,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:21:18,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617038158] [2024-11-08 16:21:18,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:21:18,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:21:18,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:21:18,724 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-08 16:21:18,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:21:18,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617038158] [2024-11-08 16:21:18,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617038158] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:21:18,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:21:18,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 16:21:18,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420252212] [2024-11-08 16:21:18,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:21:18,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 16:21:18,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:21:18,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 16:21:18,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-08 16:21:18,727 INFO L87 Difference]: Start difference. First operand 97229 states and 138345 transitions. Second operand has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 9 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)