./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/pals_lcr.7.ufo.UNBOUNDED.pals+Problem12_label08.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_189ce2a4-010f-46de-bbe0-25cd0a7b9b9b/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189ce2a4-010f-46de-bbe0-25cd0a7b9b9b/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_189ce2a4-010f-46de-bbe0-25cd0a7b9b9b/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189ce2a4-010f-46de-bbe0-25cd0a7b9b9b/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/pals_lcr.7.ufo.UNBOUNDED.pals+Problem12_label08.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189ce2a4-010f-46de-bbe0-25cd0a7b9b9b/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_189ce2a4-010f-46de-bbe0-25cd0a7b9b9b/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 7f21ea595eac4353ca417fd812da6cdd2e6031060e3844060c8f8fe5fbe20b17 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:20:10,223 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:20:10,310 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189ce2a4-010f-46de-bbe0-25cd0a7b9b9b/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 18:20:10,317 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:20:10,317 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:20:10,350 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:20:10,350 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:20:10,351 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:20:10,352 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:20:10,353 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:20:10,355 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:20:10,356 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:20:10,357 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:20:10,357 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:20:10,357 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:20:10,358 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:20:10,358 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:20:10,362 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 18:20:10,362 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 18:20:10,362 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 18:20:10,363 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:20:10,363 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:20:10,363 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:20:10,364 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:20:10,364 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:20:10,364 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 18:20:10,365 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:20:10,365 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:20:10,365 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:20:10,366 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:20:10,380 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:20:10,381 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:20:10,381 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:20:10,381 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:20:10,382 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:20:10,382 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:20:10,382 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 18:20:10,383 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 18:20:10,383 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:20:10,385 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:20:10,385 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:20:10,386 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:20:10,386 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_189ce2a4-010f-46de-bbe0-25cd0a7b9b9b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189ce2a4-010f-46de-bbe0-25cd0a7b9b9b/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7f21ea595eac4353ca417fd812da6cdd2e6031060e3844060c8f8fe5fbe20b17 [2024-11-08 18:20:10,688 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:20:10,715 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:20:10,718 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:20:10,720 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:20:10,720 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:20:10,721 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189ce2a4-010f-46de-bbe0-25cd0a7b9b9b/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/combinations/pals_lcr.7.ufo.UNBOUNDED.pals+Problem12_label08.c Unable to find full path for "g++" [2024-11-08 18:20:12,678 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:20:13,197 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:20:13,199 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189ce2a4-010f-46de-bbe0-25cd0a7b9b9b/sv-benchmarks/c/combinations/pals_lcr.7.ufo.UNBOUNDED.pals+Problem12_label08.c [2024-11-08 18:20:13,241 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189ce2a4-010f-46de-bbe0-25cd0a7b9b9b/bin/uautomizer-verify-jihMAELWvX/data/52f90fd5a/dc881f25a0c04171a6edf0e69aec0f4e/FLAGddce9b5ec [2024-11-08 18:20:13,258 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189ce2a4-010f-46de-bbe0-25cd0a7b9b9b/bin/uautomizer-verify-jihMAELWvX/data/52f90fd5a/dc881f25a0c04171a6edf0e69aec0f4e [2024-11-08 18:20:13,260 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:20:13,262 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:20:13,265 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:20:13,266 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:20:13,272 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:20:13,272 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:20:13" (1/1) ... [2024-11-08 18:20:13,273 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d4e4752 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:20:13, skipping insertion in model container [2024-11-08 18:20:13,273 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:20:13" (1/1) ... [2024-11-08 18:20:13,422 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:20:13,826 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_189ce2a4-010f-46de-bbe0-25cd0a7b9b9b/sv-benchmarks/c/combinations/pals_lcr.7.ufo.UNBOUNDED.pals+Problem12_label08.c[20454,20467] [2024-11-08 18:20:13,888 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_189ce2a4-010f-46de-bbe0-25cd0a7b9b9b/sv-benchmarks/c/combinations/pals_lcr.7.ufo.UNBOUNDED.pals+Problem12_label08.c[23961,23974] [2024-11-08 18:20:14,877 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:20:14,892 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:20:14,960 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_189ce2a4-010f-46de-bbe0-25cd0a7b9b9b/sv-benchmarks/c/combinations/pals_lcr.7.ufo.UNBOUNDED.pals+Problem12_label08.c[20454,20467] [2024-11-08 18:20:14,974 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_189ce2a4-010f-46de-bbe0-25cd0a7b9b9b/sv-benchmarks/c/combinations/pals_lcr.7.ufo.UNBOUNDED.pals+Problem12_label08.c[23961,23974] [2024-11-08 18:20:15,643 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:20:15,676 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:20:15,677 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:20:15 WrapperNode [2024-11-08 18:20:15,677 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:20:15,678 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:20:15,678 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:20:15,679 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:20:15,687 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:20:15" (1/1) ... [2024-11-08 18:20:15,743 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:20:15" (1/1) ... [2024-11-08 18:20:16,062 INFO L138 Inliner]: procedures = 39, calls = 24, calls flagged for inlining = 19, calls inlined = 19, statements flattened = 5217 [2024-11-08 18:20:16,063 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:20:16,064 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:20:16,064 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:20:16,064 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:20:16,075 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:20:15" (1/1) ... [2024-11-08 18:20:16,075 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:20:15" (1/1) ... [2024-11-08 18:20:16,293 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:20:15" (1/1) ... [2024-11-08 18:20:16,455 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 18:20:16,455 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:20:15" (1/1) ... [2024-11-08 18:20:16,456 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:20:15" (1/1) ... [2024-11-08 18:20:16,630 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:20:15" (1/1) ... [2024-11-08 18:20:16,656 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:20:15" (1/1) ... [2024-11-08 18:20:16,675 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:20:15" (1/1) ... [2024-11-08 18:20:16,689 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:20:15" (1/1) ... [2024-11-08 18:20:16,740 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:20:16,741 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:20:16,741 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:20:16,742 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:20:16,742 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:20:15" (1/1) ... [2024-11-08 18:20:16,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:20:16,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189ce2a4-010f-46de-bbe0-25cd0a7b9b9b/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:20:16,775 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189ce2a4-010f-46de-bbe0-25cd0a7b9b9b/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:20:16,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189ce2a4-010f-46de-bbe0-25cd0a7b9b9b/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:20:16,875 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:20:16,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 18:20:16,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:20:16,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:20:17,019 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:20:17,022 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:20:22,509 INFO L? ?]: Removed 754 outVars from TransFormulas that were not future-live. [2024-11-08 18:20:22,510 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:20:22,548 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:20:22,548 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-08 18:20:22,548 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:20:22 BoogieIcfgContainer [2024-11-08 18:20:22,549 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:20:22,551 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:20:22,551 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:20:22,554 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:20:22,555 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:20:13" (1/3) ... [2024-11-08 18:20:22,556 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7551ce74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:20:22, skipping insertion in model container [2024-11-08 18:20:22,556 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:20:15" (2/3) ... [2024-11-08 18:20:22,556 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7551ce74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:20:22, skipping insertion in model container [2024-11-08 18:20:22,557 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:20:22" (3/3) ... [2024-11-08 18:20:22,558 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.7.ufo.UNBOUNDED.pals+Problem12_label08.c [2024-11-08 18:20:22,577 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:20:22,577 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-08 18:20:22,690 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:20:22,699 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;@7fbe955, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:20:22,699 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-08 18:20:22,710 INFO L276 IsEmpty]: Start isEmpty. Operand has 932 states, 929 states have (on average 1.9031216361679224) internal successors, (1768), 931 states have internal predecessors, (1768), 0 states have call successors, (0), 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 18:20:22,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-08 18:20:22,720 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:20:22,720 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] [2024-11-08 18:20:22,721 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:20:22,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:20:22,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1682013628, now seen corresponding path program 1 times [2024-11-08 18:20:22,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:20:22,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480569277] [2024-11-08 18:20:22,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:20:22,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:20:22,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:20:23,026 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 18:20:23,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:20:23,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480569277] [2024-11-08 18:20:23,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480569277] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:20:23,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:20:23,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:20:23,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248884681] [2024-11-08 18:20:23,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:20:23,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 18:20:23,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:20:23,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 18:20:23,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 18:20:23,069 INFO L87 Difference]: Start difference. First operand has 932 states, 929 states have (on average 1.9031216361679224) internal successors, (1768), 931 states have internal predecessors, (1768), 0 states have call successors, (0), 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 14.0) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 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 18:20:23,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:20:23,188 INFO L93 Difference]: Finished difference Result 1806 states and 3426 transitions. [2024-11-08 18:20:23,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 18:20:23,190 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 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 28 [2024-11-08 18:20:23,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:20:23,216 INFO L225 Difference]: With dead ends: 1806 [2024-11-08 18:20:23,217 INFO L226 Difference]: Without dead ends: 866 [2024-11-08 18:20:23,226 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 18:20:23,230 INFO L432 NwaCegarLoop]: 1699 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, 1699 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 18:20:23,232 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1699 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:20:23,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2024-11-08 18:20:23,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 866. [2024-11-08 18:20:23,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 866 states, 864 states have (on average 1.8923611111111112) internal successors, (1635), 865 states have internal predecessors, (1635), 0 states have call successors, (0), 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 18:20:23,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 866 states to 866 states and 1635 transitions. [2024-11-08 18:20:23,339 INFO L78 Accepts]: Start accepts. Automaton has 866 states and 1635 transitions. Word has length 28 [2024-11-08 18:20:23,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:20:23,340 INFO L471 AbstractCegarLoop]: Abstraction has 866 states and 1635 transitions. [2024-11-08 18:20:23,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 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 18:20:23,341 INFO L276 IsEmpty]: Start isEmpty. Operand 866 states and 1635 transitions. [2024-11-08 18:20:23,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-08 18:20:23,343 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:20:23,343 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] [2024-11-08 18:20:23,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 18:20:23,344 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:20:23,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:20:23,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1900868346, now seen corresponding path program 1 times [2024-11-08 18:20:23,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:20:23,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855530085] [2024-11-08 18:20:23,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:20:23,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:20:23,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:20:23,690 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 18:20:23,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:20:23,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855530085] [2024-11-08 18:20:23,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855530085] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:20:23,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:20:23,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:20:23,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701675590] [2024-11-08 18:20:23,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:20:23,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:20:23,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:20:23,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:20:23,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:20:23,700 INFO L87 Difference]: Start difference. First operand 866 states and 1635 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 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 18:20:23,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:20:23,860 INFO L93 Difference]: Finished difference Result 926 states and 1729 transitions. [2024-11-08 18:20:23,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:20:23,861 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 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 28 [2024-11-08 18:20:23,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:20:23,866 INFO L225 Difference]: With dead ends: 926 [2024-11-08 18:20:23,866 INFO L226 Difference]: Without dead ends: 866 [2024-11-08 18:20:23,867 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 18:20:23,868 INFO L432 NwaCegarLoop]: 1633 mSDtfsCounter, 0 mSDsluCounter, 4844 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6477 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 18:20:23,869 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6477 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:20:23,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2024-11-08 18:20:23,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 866. [2024-11-08 18:20:23,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 866 states, 864 states have (on average 1.8344907407407407) internal successors, (1585), 865 states have internal predecessors, (1585), 0 states have call successors, (0), 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 18:20:23,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 866 states to 866 states and 1585 transitions. [2024-11-08 18:20:23,889 INFO L78 Accepts]: Start accepts. Automaton has 866 states and 1585 transitions. Word has length 28 [2024-11-08 18:20:23,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:20:23,890 INFO L471 AbstractCegarLoop]: Abstraction has 866 states and 1585 transitions. [2024-11-08 18:20:23,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 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 18:20:23,890 INFO L276 IsEmpty]: Start isEmpty. Operand 866 states and 1585 transitions. [2024-11-08 18:20:23,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-08 18:20:23,892 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:20:23,892 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:20:23,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 18:20:23,894 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:20:23,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:20:23,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1251760820, now seen corresponding path program 1 times [2024-11-08 18:20:23,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:20:23,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44238624] [2024-11-08 18:20:23,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:20:23,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:20:23,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:20:24,042 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 18:20:24,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:20:24,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44238624] [2024-11-08 18:20:24,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44238624] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:20:24,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:20:24,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:20:24,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25098129] [2024-11-08 18:20:24,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:20:24,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:20:24,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:20:24,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:20:24,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:20:24,047 INFO L87 Difference]: Start difference. First operand 866 states and 1585 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:20:28,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:20:28,078 INFO L93 Difference]: Finished difference Result 2370 states and 4458 transitions. [2024-11-08 18:20:28,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:20:28,079 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2024-11-08 18:20:28,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:20:28,091 INFO L225 Difference]: With dead ends: 2370 [2024-11-08 18:20:28,091 INFO L226 Difference]: Without dead ends: 1617 [2024-11-08 18:20:28,093 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:20:28,094 INFO L432 NwaCegarLoop]: 254 mSDtfsCounter, 985 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2377 mSolverCounterSat, 711 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 985 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 3088 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 711 IncrementalHoareTripleChecker+Valid, 2377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-08 18:20:28,095 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [985 Valid, 261 Invalid, 3088 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [711 Valid, 2377 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-08 18:20:28,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1617 states. [2024-11-08 18:20:28,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1617 to 1617. [2024-11-08 18:20:28,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1617 states, 1615 states have (on average 1.8105263157894738) internal successors, (2924), 1616 states have internal predecessors, (2924), 0 states have call successors, (0), 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 18:20:28,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1617 states to 1617 states and 2924 transitions. [2024-11-08 18:20:28,178 INFO L78 Accepts]: Start accepts. Automaton has 1617 states and 2924 transitions. Word has length 30 [2024-11-08 18:20:28,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:20:28,178 INFO L471 AbstractCegarLoop]: Abstraction has 1617 states and 2924 transitions. [2024-11-08 18:20:28,179 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:20:28,179 INFO L276 IsEmpty]: Start isEmpty. Operand 1617 states and 2924 transitions. [2024-11-08 18:20:28,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-08 18:20:28,181 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:20:28,182 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] [2024-11-08 18:20:28,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 18:20:28,182 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:20:28,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:20:28,184 INFO L85 PathProgramCache]: Analyzing trace with hash 600970905, now seen corresponding path program 1 times [2024-11-08 18:20:28,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:20:28,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733797154] [2024-11-08 18:20:28,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:20:28,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:20:28,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:20:28,536 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 18:20:28,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:20:28,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733797154] [2024-11-08 18:20:28,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733797154] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:20:28,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:20:28,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 18:20:28,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814788491] [2024-11-08 18:20:28,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:20:28,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 18:20:28,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:20:28,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 18:20:28,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:20:28,540 INFO L87 Difference]: Start difference. First operand 1617 states and 2924 transitions. Second operand has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 0 states have call successors, (0), 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 18:20:29,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:20:29,133 INFO L93 Difference]: Finished difference Result 2401 states and 4184 transitions. [2024-11-08 18:20:29,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 18:20:29,134 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2024-11-08 18:20:29,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:20:29,144 INFO L225 Difference]: With dead ends: 2401 [2024-11-08 18:20:29,144 INFO L226 Difference]: Without dead ends: 2345 [2024-11-08 18:20:29,146 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2024-11-08 18:20:29,147 INFO L432 NwaCegarLoop]: 1579 mSDtfsCounter, 11612 mSDsluCounter, 3037 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11612 SdHoareTripleChecker+Valid, 4616 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:20:29,147 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11612 Valid, 4616 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:20:29,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2345 states. [2024-11-08 18:20:29,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2345 to 1671. [2024-11-08 18:20:29,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1671 states, 1669 states have (on average 1.8040742959856202) internal successors, (3011), 1670 states have internal predecessors, (3011), 0 states have call successors, (0), 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 18:20:29,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1671 states to 1671 states and 3011 transitions. [2024-11-08 18:20:29,200 INFO L78 Accepts]: Start accepts. Automaton has 1671 states and 3011 transitions. Word has length 77 [2024-11-08 18:20:29,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:20:29,201 INFO L471 AbstractCegarLoop]: Abstraction has 1671 states and 3011 transitions. [2024-11-08 18:20:29,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 0 states have call successors, (0), 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 18:20:29,201 INFO L276 IsEmpty]: Start isEmpty. Operand 1671 states and 3011 transitions. [2024-11-08 18:20:29,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-08 18:20:29,203 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:20:29,203 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] [2024-11-08 18:20:29,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 18:20:29,204 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:20:29,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:20:29,205 INFO L85 PathProgramCache]: Analyzing trace with hash 591730761, now seen corresponding path program 1 times [2024-11-08 18:20:29,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:20:29,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437699041] [2024-11-08 18:20:29,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:20:29,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:20:29,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:20:29,359 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 18:20:29,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:20:29,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437699041] [2024-11-08 18:20:29,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437699041] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:20:29,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:20:29,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:20:29,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977279087] [2024-11-08 18:20:29,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:20:29,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:20:29,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:20:29,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:20:29,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:20:29,362 INFO L87 Difference]: Start difference. First operand 1671 states and 3011 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 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 18:20:29,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:20:29,423 INFO L93 Difference]: Finished difference Result 1880 states and 3346 transitions. [2024-11-08 18:20:29,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:20:29,423 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2024-11-08 18:20:29,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:20:29,431 INFO L225 Difference]: With dead ends: 1880 [2024-11-08 18:20:29,431 INFO L226 Difference]: Without dead ends: 1770 [2024-11-08 18:20:29,432 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 18:20:29,433 INFO L432 NwaCegarLoop]: 1581 mSDtfsCounter, 1500 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1500 SdHoareTripleChecker+Valid, 1664 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:20:29,434 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1500 Valid, 1664 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:20:29,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1770 states. [2024-11-08 18:20:29,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1770 to 1766. [2024-11-08 18:20:29,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1766 states, 1764 states have (on average 1.7919501133786848) internal successors, (3161), 1765 states have internal predecessors, (3161), 0 states have call successors, (0), 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 18:20:29,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1766 states to 1766 states and 3161 transitions. [2024-11-08 18:20:29,484 INFO L78 Accepts]: Start accepts. Automaton has 1766 states and 3161 transitions. Word has length 79 [2024-11-08 18:20:29,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:20:29,485 INFO L471 AbstractCegarLoop]: Abstraction has 1766 states and 3161 transitions. [2024-11-08 18:20:29,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 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 18:20:29,486 INFO L276 IsEmpty]: Start isEmpty. Operand 1766 states and 3161 transitions. [2024-11-08 18:20:29,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-08 18:20:29,487 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:20:29,487 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] [2024-11-08 18:20:29,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 18:20:29,488 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:20:29,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:20:29,488 INFO L85 PathProgramCache]: Analyzing trace with hash 658224273, now seen corresponding path program 1 times [2024-11-08 18:20:29,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:20:29,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020496347] [2024-11-08 18:20:29,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:20:29,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:20:29,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:20:30,107 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 18:20:30,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:20:30,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020496347] [2024-11-08 18:20:30,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020496347] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:20:30,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:20:30,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 18:20:30,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619724124] [2024-11-08 18:20:30,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:20:30,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 18:20:30,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:20:30,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 18:20:30,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:20:30,110 INFO L87 Difference]: Start difference. First operand 1766 states and 3161 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 0 states have call successors, (0), 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 18:20:30,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:20:30,601 INFO L93 Difference]: Finished difference Result 1973 states and 3489 transitions. [2024-11-08 18:20:30,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:20:30,602 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2024-11-08 18:20:30,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:20:30,609 INFO L225 Difference]: With dead ends: 1973 [2024-11-08 18:20:30,609 INFO L226 Difference]: Without dead ends: 1768 [2024-11-08 18:20:30,610 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2024-11-08 18:20:30,611 INFO L432 NwaCegarLoop]: 1577 mSDtfsCounter, 3064 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3064 SdHoareTripleChecker+Valid, 2108 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:20:30,611 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3064 Valid, 2108 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:20:30,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1768 states. [2024-11-08 18:20:30,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1768 to 1766. [2024-11-08 18:20:30,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1766 states, 1764 states have (on average 1.7908163265306123) internal successors, (3159), 1765 states have internal predecessors, (3159), 0 states have call successors, (0), 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 18:20:30,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1766 states to 1766 states and 3159 transitions. [2024-11-08 18:20:30,648 INFO L78 Accepts]: Start accepts. Automaton has 1766 states and 3159 transitions. Word has length 79 [2024-11-08 18:20:30,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:20:30,649 INFO L471 AbstractCegarLoop]: Abstraction has 1766 states and 3159 transitions. [2024-11-08 18:20:30,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 0 states have call successors, (0), 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 18:20:30,649 INFO L276 IsEmpty]: Start isEmpty. Operand 1766 states and 3159 transitions. [2024-11-08 18:20:30,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-08 18:20:30,650 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:20:30,651 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 18:20:30,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 18:20:30,651 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:20:30,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:20:30,652 INFO L85 PathProgramCache]: Analyzing trace with hash -1484606924, now seen corresponding path program 1 times [2024-11-08 18:20:30,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:20:30,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164363004] [2024-11-08 18:20:30,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:20:30,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:20:30,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:20:31,053 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 18:20:31,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:20:31,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164363004] [2024-11-08 18:20:31,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164363004] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:20:31,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:20:31,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 18:20:31,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993299078] [2024-11-08 18:20:31,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:20:31,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 18:20:31,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:20:31,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 18:20:31,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:20:31,056 INFO L87 Difference]: Start difference. First operand 1766 states and 3159 transitions. Second operand has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 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 18:20:31,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:20:31,163 INFO L93 Difference]: Finished difference Result 1774 states and 3168 transitions. [2024-11-08 18:20:31,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 18:20:31,164 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 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 18:20:31,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:20:31,171 INFO L225 Difference]: With dead ends: 1774 [2024-11-08 18:20:31,171 INFO L226 Difference]: Without dead ends: 1772 [2024-11-08 18:20:31,172 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 18:20:31,173 INFO L432 NwaCegarLoop]: 1579 mSDtfsCounter, 0 mSDsluCounter, 9461 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11040 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 18:20:31,173 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11040 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:20:31,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1772 states. [2024-11-08 18:20:31,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1772 to 1772. [2024-11-08 18:20:31,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1772 states, 1770 states have (on average 1.7875706214689266) internal successors, (3164), 1771 states have internal predecessors, (3164), 0 states have call successors, (0), 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 18:20:31,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1772 states to 1772 states and 3164 transitions. [2024-11-08 18:20:31,212 INFO L78 Accepts]: Start accepts. Automaton has 1772 states and 3164 transitions. Word has length 80 [2024-11-08 18:20:31,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:20:31,213 INFO L471 AbstractCegarLoop]: Abstraction has 1772 states and 3164 transitions. [2024-11-08 18:20:31,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 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 18:20:31,213 INFO L276 IsEmpty]: Start isEmpty. Operand 1772 states and 3164 transitions. [2024-11-08 18:20:31,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-08 18:20:31,214 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:20:31,214 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 18:20:31,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 18:20:31,215 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:20:31,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:20:31,215 INFO L85 PathProgramCache]: Analyzing trace with hash 1432357841, now seen corresponding path program 1 times [2024-11-08 18:20:31,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:20:31,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238911159] [2024-11-08 18:20:31,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:20:31,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:20:31,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:20:31,290 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 18:20:31,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:20:31,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238911159] [2024-11-08 18:20:31,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238911159] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:20:31,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:20:31,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:20:31,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457023322] [2024-11-08 18:20:31,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:20:31,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:20:31,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:20:31,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:20:31,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:20:31,293 INFO L87 Difference]: Start difference. First operand 1772 states and 3164 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 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 18:20:31,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:20:31,338 INFO L93 Difference]: Finished difference Result 2178 states and 3796 transitions. [2024-11-08 18:20:31,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:20:31,339 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 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 18:20:31,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:20:31,346 INFO L225 Difference]: With dead ends: 2178 [2024-11-08 18:20:31,346 INFO L226 Difference]: Without dead ends: 1967 [2024-11-08 18:20:31,347 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 18:20:31,348 INFO L432 NwaCegarLoop]: 1652 mSDtfsCounter, 1517 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1517 SdHoareTripleChecker+Valid, 1747 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 18:20:31,349 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1517 Valid, 1747 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:20:31,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1967 states. [2024-11-08 18:20:31,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1967 to 1965. [2024-11-08 18:20:31,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1965 states, 1963 states have (on average 1.7631176770249617) internal successors, (3461), 1964 states have internal predecessors, (3461), 0 states have call successors, (0), 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 18:20:31,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1965 states to 1965 states and 3461 transitions. [2024-11-08 18:20:31,392 INFO L78 Accepts]: Start accepts. Automaton has 1965 states and 3461 transitions. Word has length 81 [2024-11-08 18:20:31,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:20:31,393 INFO L471 AbstractCegarLoop]: Abstraction has 1965 states and 3461 transitions. [2024-11-08 18:20:31,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 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 18:20:31,393 INFO L276 IsEmpty]: Start isEmpty. Operand 1965 states and 3461 transitions. [2024-11-08 18:20:31,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-08 18:20:31,394 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:20:31,394 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 18:20:31,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 18:20:31,395 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:20:31,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:20:31,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1595272401, now seen corresponding path program 1 times [2024-11-08 18:20:31,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:20:31,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575425781] [2024-11-08 18:20:31,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:20:31,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:20:31,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:20:31,469 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 18:20:31,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:20:31,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575425781] [2024-11-08 18:20:31,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575425781] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:20:31,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:20:31,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:20:31,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591362785] [2024-11-08 18:20:31,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:20:31,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:20:31,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:20:31,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:20:31,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:20:31,471 INFO L87 Difference]: Start difference. First operand 1965 states and 3461 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 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 18:20:31,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:20:31,527 INFO L93 Difference]: Finished difference Result 2741 states and 4659 transitions. [2024-11-08 18:20:31,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:20:31,527 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 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 18:20:31,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:20:31,535 INFO L225 Difference]: With dead ends: 2741 [2024-11-08 18:20:31,535 INFO L226 Difference]: Without dead ends: 2337 [2024-11-08 18:20:31,537 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 18:20:31,537 INFO L432 NwaCegarLoop]: 1650 mSDtfsCounter, 1515 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1515 SdHoareTripleChecker+Valid, 1749 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 18:20:31,538 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1515 Valid, 1749 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:20:31,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2337 states. [2024-11-08 18:20:31,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2337 to 2335. [2024-11-08 18:20:31,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2335 states, 2333 states have (on average 1.7243891984569224) internal successors, (4023), 2334 states have internal predecessors, (4023), 0 states have call successors, (0), 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 18:20:31,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2335 states to 2335 states and 4023 transitions. [2024-11-08 18:20:31,591 INFO L78 Accepts]: Start accepts. Automaton has 2335 states and 4023 transitions. Word has length 81 [2024-11-08 18:20:31,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:20:31,592 INFO L471 AbstractCegarLoop]: Abstraction has 2335 states and 4023 transitions. [2024-11-08 18:20:31,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 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 18:20:31,592 INFO L276 IsEmpty]: Start isEmpty. Operand 2335 states and 4023 transitions. [2024-11-08 18:20:31,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-08 18:20:31,593 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:20:31,593 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 18:20:31,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 18:20:31,594 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:20:31,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:20:31,594 INFO L85 PathProgramCache]: Analyzing trace with hash 1859128785, now seen corresponding path program 1 times [2024-11-08 18:20:31,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:20:31,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478938652] [2024-11-08 18:20:31,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:20:31,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:20:31,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:20:31,671 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 18:20:31,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:20:31,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478938652] [2024-11-08 18:20:31,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478938652] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:20:31,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:20:31,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:20:31,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896241711] [2024-11-08 18:20:31,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:20:31,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:20:31,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:20:31,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:20:31,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:20:31,674 INFO L87 Difference]: Start difference. First operand 2335 states and 4023 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 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 18:20:31,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:20:31,741 INFO L93 Difference]: Finished difference Result 3819 states and 6289 transitions. [2024-11-08 18:20:31,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:20:31,741 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 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 18:20:31,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:20:31,752 INFO L225 Difference]: With dead ends: 3819 [2024-11-08 18:20:31,752 INFO L226 Difference]: Without dead ends: 3045 [2024-11-08 18:20:31,754 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 18:20:31,754 INFO L432 NwaCegarLoop]: 1648 mSDtfsCounter, 1513 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1513 SdHoareTripleChecker+Valid, 1751 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 18:20:31,755 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1513 Valid, 1751 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:20:31,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3045 states. [2024-11-08 18:20:31,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3045 to 3043. [2024-11-08 18:20:31,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3043 states, 3041 states have (on average 1.6714896415652747) internal successors, (5083), 3042 states have internal predecessors, (5083), 0 states have call successors, (0), 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 18:20:31,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3043 states to 3043 states and 5083 transitions. [2024-11-08 18:20:31,836 INFO L78 Accepts]: Start accepts. Automaton has 3043 states and 5083 transitions. Word has length 81 [2024-11-08 18:20:31,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:20:31,836 INFO L471 AbstractCegarLoop]: Abstraction has 3043 states and 5083 transitions. [2024-11-08 18:20:31,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 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 18:20:31,837 INFO L276 IsEmpty]: Start isEmpty. Operand 3043 states and 5083 transitions. [2024-11-08 18:20:31,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-08 18:20:31,838 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:20:31,838 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 18:20:31,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 18:20:31,838 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:20:31,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:20:31,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1197576495, now seen corresponding path program 1 times [2024-11-08 18:20:31,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:20:31,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910235590] [2024-11-08 18:20:31,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:20:31,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:20:31,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:20:31,915 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 18:20:31,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:20:31,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910235590] [2024-11-08 18:20:31,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910235590] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:20:31,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:20:31,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:20:31,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622182295] [2024-11-08 18:20:31,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:20:31,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:20:31,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:20:31,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:20:31,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:20:31,918 INFO L87 Difference]: Start difference. First operand 3043 states and 5083 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 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 18:20:32,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:20:32,010 INFO L93 Difference]: Finished difference Result 5879 states and 9357 transitions. [2024-11-08 18:20:32,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:20:32,010 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 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 18:20:32,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:20:32,026 INFO L225 Difference]: With dead ends: 5879 [2024-11-08 18:20:32,026 INFO L226 Difference]: Without dead ends: 4397 [2024-11-08 18:20:32,029 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 18:20:32,029 INFO L432 NwaCegarLoop]: 1646 mSDtfsCounter, 1511 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1511 SdHoareTripleChecker+Valid, 1753 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 18:20:32,030 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1511 Valid, 1753 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:20:32,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4397 states. [2024-11-08 18:20:32,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4397 to 4395. [2024-11-08 18:20:32,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4395 states, 4393 states have (on average 1.6105167311632143) internal successors, (7075), 4394 states have internal predecessors, (7075), 0 states have call successors, (0), 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 18:20:32,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4395 states to 4395 states and 7075 transitions. [2024-11-08 18:20:32,214 INFO L78 Accepts]: Start accepts. Automaton has 4395 states and 7075 transitions. Word has length 81 [2024-11-08 18:20:32,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:20:32,214 INFO L471 AbstractCegarLoop]: Abstraction has 4395 states and 7075 transitions. [2024-11-08 18:20:32,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 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 18:20:32,215 INFO L276 IsEmpty]: Start isEmpty. Operand 4395 states and 7075 transitions. [2024-11-08 18:20:32,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-08 18:20:32,216 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:20:32,216 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 18:20:32,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 18:20:32,216 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:20:32,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:20:32,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1632112431, now seen corresponding path program 1 times [2024-11-08 18:20:32,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:20:32,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236751753] [2024-11-08 18:20:32,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:20:32,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:20:32,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:20:32,297 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 18:20:32,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:20:32,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236751753] [2024-11-08 18:20:32,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236751753] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:20:32,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:20:32,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:20:32,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750521656] [2024-11-08 18:20:32,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:20:32,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:20:32,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:20:32,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:20:32,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:20:32,299 INFO L87 Difference]: Start difference. First operand 4395 states and 7075 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 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 18:20:32,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:20:32,448 INFO L93 Difference]: Finished difference Result 9807 states and 15109 transitions. [2024-11-08 18:20:32,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:20:32,449 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 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 18:20:32,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:20:32,466 INFO L225 Difference]: With dead ends: 9807 [2024-11-08 18:20:32,466 INFO L226 Difference]: Without dead ends: 6973 [2024-11-08 18:20:32,471 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 18:20:32,471 INFO L432 NwaCegarLoop]: 1634 mSDtfsCounter, 1507 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1507 SdHoareTripleChecker+Valid, 1749 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 18:20:32,472 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1507 Valid, 1749 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:20:32,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6973 states. [2024-11-08 18:20:32,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6973 to 6971. [2024-11-08 18:20:32,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6971 states, 6969 states have (on average 1.550150667240637) internal successors, (10803), 6970 states have internal predecessors, (10803), 0 states have call successors, (0), 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 18:20:32,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6971 states to 6971 states and 10803 transitions. [2024-11-08 18:20:32,704 INFO L78 Accepts]: Start accepts. Automaton has 6971 states and 10803 transitions. Word has length 81 [2024-11-08 18:20:32,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:20:32,704 INFO L471 AbstractCegarLoop]: Abstraction has 6971 states and 10803 transitions. [2024-11-08 18:20:32,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 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 18:20:32,705 INFO L276 IsEmpty]: Start isEmpty. Operand 6971 states and 10803 transitions. [2024-11-08 18:20:32,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-08 18:20:32,708 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:20:32,708 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 18:20:32,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 18:20:32,709 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:20:32,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:20:32,709 INFO L85 PathProgramCache]: Analyzing trace with hash 881922001, now seen corresponding path program 1 times [2024-11-08 18:20:32,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:20:32,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373958583] [2024-11-08 18:20:32,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:20:32,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:20:32,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:20:32,793 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 18:20:32,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:20:32,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373958583] [2024-11-08 18:20:32,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373958583] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:20:32,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:20:32,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:20:32,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885545361] [2024-11-08 18:20:32,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:20:32,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:20:32,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:20:32,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:20:32,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:20:32,796 INFO L87 Difference]: Start difference. First operand 6971 states and 10803 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 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 18:20:33,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:20:33,039 INFO L93 Difference]: Finished difference Result 17279 states and 25845 transitions. [2024-11-08 18:20:33,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:20:33,040 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 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 18:20:33,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:20:33,063 INFO L225 Difference]: With dead ends: 17279 [2024-11-08 18:20:33,064 INFO L226 Difference]: Without dead ends: 11869 [2024-11-08 18:20:33,071 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 18:20:33,072 INFO L432 NwaCegarLoop]: 1644 mSDtfsCounter, 1509 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1509 SdHoareTripleChecker+Valid, 1755 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 18:20:33,072 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1509 Valid, 1755 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:20:33,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11869 states. [2024-11-08 18:20:33,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11869 to 11867. [2024-11-08 18:20:33,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11867 states, 11865 states have (on average 1.4957437842393595) internal successors, (17747), 11866 states have internal predecessors, (17747), 0 states have call successors, (0), 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 18:20:33,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11867 states to 11867 states and 17747 transitions. [2024-11-08 18:20:33,537 INFO L78 Accepts]: Start accepts. Automaton has 11867 states and 17747 transitions. Word has length 81 [2024-11-08 18:20:33,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:20:33,538 INFO L471 AbstractCegarLoop]: Abstraction has 11867 states and 17747 transitions. [2024-11-08 18:20:33,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 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 18:20:33,538 INFO L276 IsEmpty]: Start isEmpty. Operand 11867 states and 17747 transitions. [2024-11-08 18:20:33,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-08 18:20:33,539 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:20:33,539 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:20:33,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 18:20:33,540 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:20:33,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:20:33,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1014046484, now seen corresponding path program 1 times [2024-11-08 18:20:33,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:20:33,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684099448] [2024-11-08 18:20:33,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:20:33,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:20:33,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:20:33,615 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 18:20:33,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:20:33,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684099448] [2024-11-08 18:20:33,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684099448] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:20:33,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:20:33,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:20:33,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894092286] [2024-11-08 18:20:33,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:20:33,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:20:33,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:20:33,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:20:33,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:20:33,618 INFO L87 Difference]: Start difference. First operand 11867 states and 17747 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 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 18:20:33,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:20:33,942 INFO L93 Difference]: Finished difference Result 22626 states and 33497 transitions. [2024-11-08 18:20:33,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:20:33,943 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2024-11-08 18:20:33,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:20:33,974 INFO L225 Difference]: With dead ends: 22626 [2024-11-08 18:20:33,975 INFO L226 Difference]: Without dead ends: 16863 [2024-11-08 18:20:33,984 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 18:20:33,985 INFO L432 NwaCegarLoop]: 1657 mSDtfsCounter, 1516 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1516 SdHoareTripleChecker+Valid, 1748 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 18:20:33,985 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1516 Valid, 1748 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:20:34,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16863 states. [2024-11-08 18:20:34,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16863 to 16861. [2024-11-08 18:20:34,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16861 states, 16859 states have (on average 1.4741681001245626) internal successors, (24853), 16860 states have internal predecessors, (24853), 0 states have call successors, (0), 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 18:20:34,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16861 states to 16861 states and 24853 transitions. [2024-11-08 18:20:34,501 INFO L78 Accepts]: Start accepts. Automaton has 16861 states and 24853 transitions. Word has length 83 [2024-11-08 18:20:34,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:20:34,502 INFO L471 AbstractCegarLoop]: Abstraction has 16861 states and 24853 transitions. [2024-11-08 18:20:34,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 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 18:20:34,502 INFO L276 IsEmpty]: Start isEmpty. Operand 16861 states and 24853 transitions. [2024-11-08 18:20:34,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-08 18:20:34,504 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:20:34,504 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:20:34,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 18:20:34,505 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:20:34,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:20:34,505 INFO L85 PathProgramCache]: Analyzing trace with hash -366226910, now seen corresponding path program 1 times [2024-11-08 18:20:34,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:20:34,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711486062] [2024-11-08 18:20:34,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:20:34,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:20:34,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:20:34,896 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:20:34,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:20:34,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711486062] [2024-11-08 18:20:34,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711486062] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:20:34,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:20:34,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:20:34,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843874221] [2024-11-08 18:20:34,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:20:34,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:20:34,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:20:34,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:20:34,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:20:34,899 INFO L87 Difference]: Start difference. First operand 16861 states and 24853 transitions. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:20:42,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:20:42,593 INFO L93 Difference]: Finished difference Result 20618 states and 31743 transitions. [2024-11-08 18:20:42,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:20:42,594 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2024-11-08 18:20:42,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:20:42,625 INFO L225 Difference]: With dead ends: 20618 [2024-11-08 18:20:42,625 INFO L226 Difference]: Without dead ends: 19114 [2024-11-08 18:20:42,630 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 18:20:42,630 INFO L432 NwaCegarLoop]: 839 mSDtfsCounter, 2467 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 5154 mSolverCounterSat, 1148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2467 SdHoareTripleChecker+Valid, 857 SdHoareTripleChecker+Invalid, 6302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1148 IncrementalHoareTripleChecker+Valid, 5154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:20:42,631 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2467 Valid, 857 Invalid, 6302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1148 Valid, 5154 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2024-11-08 18:20:42,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19114 states. [2024-11-08 18:20:43,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19114 to 19114. [2024-11-08 18:20:43,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19114 states, 19112 states have (on average 1.4641063206362495) internal successors, (27982), 19113 states have internal predecessors, (27982), 0 states have call successors, (0), 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 18:20:43,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19114 states to 19114 states and 27982 transitions. [2024-11-08 18:20:43,239 INFO L78 Accepts]: Start accepts. Automaton has 19114 states and 27982 transitions. Word has length 99 [2024-11-08 18:20:43,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:20:43,239 INFO L471 AbstractCegarLoop]: Abstraction has 19114 states and 27982 transitions. [2024-11-08 18:20:43,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:20:43,239 INFO L276 IsEmpty]: Start isEmpty. Operand 19114 states and 27982 transitions. [2024-11-08 18:20:43,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-08 18:20:43,242 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:20:43,242 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:20:43,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 18:20:43,243 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:20:43,243 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:20:43,243 INFO L85 PathProgramCache]: Analyzing trace with hash -1171367897, now seen corresponding path program 1 times [2024-11-08 18:20:43,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:20:43,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116792560] [2024-11-08 18:20:43,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:20:43,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:20:43,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:20:43,358 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-08 18:20:43,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:20:43,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116792560] [2024-11-08 18:20:43,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116792560] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:20:43,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:20:43,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:20:43,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916285956] [2024-11-08 18:20:43,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:20:43,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:20:43,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:20:43,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:20:43,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:20:43,363 INFO L87 Difference]: Start difference. First operand 19114 states and 27982 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 2 states have internal predecessors, (76), 0 states have call successors, (0), 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 18:20:47,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:20:47,431 INFO L93 Difference]: Finished difference Result 25875 states and 39034 transitions. [2024-11-08 18:20:47,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:20:47,432 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 2 states have internal predecessors, (76), 0 states have call successors, (0), 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 101 [2024-11-08 18:20:47,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:20:47,462 INFO L225 Difference]: With dead ends: 25875 [2024-11-08 18:20:47,462 INFO L226 Difference]: Without dead ends: 22118 [2024-11-08 18:20:47,468 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:20:47,469 INFO L432 NwaCegarLoop]: 613 mSDtfsCounter, 871 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2261 mSolverCounterSat, 652 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 871 SdHoareTripleChecker+Valid, 620 SdHoareTripleChecker+Invalid, 2913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 652 IncrementalHoareTripleChecker+Valid, 2261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-08 18:20:47,469 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [871 Valid, 620 Invalid, 2913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [652 Valid, 2261 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-08 18:20:47,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22118 states. [2024-11-08 18:20:47,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22118 to 22118. [2024-11-08 18:20:47,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22118 states, 22116 states have (on average 1.4336227165852777) internal successors, (31706), 22117 states have internal predecessors, (31706), 0 states have call successors, (0), 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 18:20:48,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22118 states to 22118 states and 31706 transitions. [2024-11-08 18:20:48,036 INFO L78 Accepts]: Start accepts. Automaton has 22118 states and 31706 transitions. Word has length 101 [2024-11-08 18:20:48,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:20:48,036 INFO L471 AbstractCegarLoop]: Abstraction has 22118 states and 31706 transitions. [2024-11-08 18:20:48,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 2 states have internal predecessors, (76), 0 states have call successors, (0), 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 18:20:48,037 INFO L276 IsEmpty]: Start isEmpty. Operand 22118 states and 31706 transitions. [2024-11-08 18:20:48,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-08 18:20:48,041 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:20:48,041 INFO L215 NwaCegarLoop]: trace histogram [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 18:20:48,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 18:20:48,042 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:20:48,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:20:48,042 INFO L85 PathProgramCache]: Analyzing trace with hash -754979372, now seen corresponding path program 1 times [2024-11-08 18:20:48,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:20:48,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742483843] [2024-11-08 18:20:48,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:20:48,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:20:48,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:20:48,438 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 18:20:48,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:20:48,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742483843] [2024-11-08 18:20:48,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742483843] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:20:48,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:20:48,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 18:20:48,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786708316] [2024-11-08 18:20:48,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:20:48,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 18:20:48,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:20:48,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 18:20:48,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:20:48,441 INFO L87 Difference]: Start difference. First operand 22118 states and 31706 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 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 18:20:51,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:20:51,048 INFO L93 Difference]: Finished difference Result 132342 states and 190178 transitions. [2024-11-08 18:20:51,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:20:51,049 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 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 104 [2024-11-08 18:20:51,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:20:51,206 INFO L225 Difference]: With dead ends: 132342 [2024-11-08 18:20:51,206 INFO L226 Difference]: Without dead ends: 117044 [2024-11-08 18:20:51,235 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 18:20:51,235 INFO L432 NwaCegarLoop]: 1675 mSDtfsCounter, 9905 mSDsluCounter, 2861 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9905 SdHoareTripleChecker+Valid, 4536 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:20:51,236 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9905 Valid, 4536 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:20:51,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117044 states. [2024-11-08 18:20:53,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117044 to 37414. [2024-11-08 18:20:53,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37414 states, 37412 states have (on average 1.4308243344381482) internal successors, (53530), 37413 states have internal predecessors, (53530), 0 states have call successors, (0), 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 18:20:53,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37414 states to 37414 states and 53530 transitions. [2024-11-08 18:20:53,148 INFO L78 Accepts]: Start accepts. Automaton has 37414 states and 53530 transitions. Word has length 104 [2024-11-08 18:20:53,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:20:53,149 INFO L471 AbstractCegarLoop]: Abstraction has 37414 states and 53530 transitions. [2024-11-08 18:20:53,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 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 18:20:53,149 INFO L276 IsEmpty]: Start isEmpty. Operand 37414 states and 53530 transitions. [2024-11-08 18:20:53,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-08 18:20:53,154 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:20:53,154 INFO L215 NwaCegarLoop]: trace histogram [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 18:20:53,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 18:20:53,155 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:20:53,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:20:53,155 INFO L85 PathProgramCache]: Analyzing trace with hash -592064812, now seen corresponding path program 1 times [2024-11-08 18:20:53,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:20:53,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477708457] [2024-11-08 18:20:53,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:20:53,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:20:53,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:20:53,457 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-08 18:20:53,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:20:53,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477708457] [2024-11-08 18:20:53,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477708457] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:20:53,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:20:53,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 18:20:53,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362771470] [2024-11-08 18:20:53,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:20:53,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 18:20:53,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:20:53,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 18:20:53,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:20:53,460 INFO L87 Difference]: Start difference. First operand 37414 states and 53530 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:20:56,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:20:56,496 INFO L93 Difference]: Finished difference Result 147638 states and 212002 transitions. [2024-11-08 18:20:56,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:20:56,497 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2024-11-08 18:20:56,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:20:56,701 INFO L225 Difference]: With dead ends: 147638 [2024-11-08 18:20:56,701 INFO L226 Difference]: Without dead ends: 132340 [2024-11-08 18:20:56,740 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 18:20:56,740 INFO L432 NwaCegarLoop]: 1672 mSDtfsCounter, 9926 mSDsluCounter, 2757 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9926 SdHoareTripleChecker+Valid, 4429 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:20:56,741 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9926 Valid, 4429 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:20:56,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132340 states. [2024-11-08 18:20:59,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132340 to 60390. [2024-11-08 18:20:59,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60390 states, 60388 states have (on average 1.4258793137709478) internal successors, (86106), 60389 states have internal predecessors, (86106), 0 states have call successors, (0), 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 18:20:59,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60390 states to 60390 states and 86106 transitions. [2024-11-08 18:20:59,440 INFO L78 Accepts]: Start accepts. Automaton has 60390 states and 86106 transitions. Word has length 104 [2024-11-08 18:20:59,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:20:59,441 INFO L471 AbstractCegarLoop]: Abstraction has 60390 states and 86106 transitions. [2024-11-08 18:20:59,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:20:59,441 INFO L276 IsEmpty]: Start isEmpty. Operand 60390 states and 86106 transitions. [2024-11-08 18:20:59,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-08 18:20:59,449 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:20:59,449 INFO L215 NwaCegarLoop]: trace histogram [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 18:20:59,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 18:20:59,450 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:20:59,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:20:59,450 INFO L85 PathProgramCache]: Analyzing trace with hash -328208428, now seen corresponding path program 1 times [2024-11-08 18:20:59,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:20:59,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781446697] [2024-11-08 18:20:59,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:20:59,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:20:59,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:20:59,741 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-08 18:20:59,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:20:59,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781446697] [2024-11-08 18:20:59,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781446697] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:20:59,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:20:59,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 18:20:59,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663698987] [2024-11-08 18:20:59,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:20:59,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 18:20:59,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:20:59,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 18:20:59,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:20:59,745 INFO L87 Difference]: Start difference. First operand 60390 states and 86106 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 states have internal predecessors, (97), 0 states have call successors, (0), 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 18:21:03,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:21:03,367 INFO L93 Difference]: Finished difference Result 162934 states and 233826 transitions. [2024-11-08 18:21:03,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:21:03,367 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 states have internal predecessors, (97), 0 states have call successors, (0), 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 104 [2024-11-08 18:21:03,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:21:03,518 INFO L225 Difference]: With dead ends: 162934 [2024-11-08 18:21:03,518 INFO L226 Difference]: Without dead ends: 147636 [2024-11-08 18:21:03,545 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 18:21:03,546 INFO L432 NwaCegarLoop]: 1669 mSDtfsCounter, 9971 mSDsluCounter, 2656 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9971 SdHoareTripleChecker+Valid, 4325 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:21:03,546 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9971 Valid, 4325 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:21:03,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147636 states. [2024-11-08 18:21:06,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147636 to 75686. [2024-11-08 18:21:06,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75686 states, 75684 states have (on average 1.4260609904339094) internal successors, (107930), 75685 states have internal predecessors, (107930), 0 states have call successors, (0), 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 18:21:06,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75686 states to 75686 states and 107930 transitions. [2024-11-08 18:21:06,553 INFO L78 Accepts]: Start accepts. Automaton has 75686 states and 107930 transitions. Word has length 104 [2024-11-08 18:21:06,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:21:06,554 INFO L471 AbstractCegarLoop]: Abstraction has 75686 states and 107930 transitions. [2024-11-08 18:21:06,554 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 states have internal predecessors, (97), 0 states have call successors, (0), 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 18:21:06,554 INFO L276 IsEmpty]: Start isEmpty. Operand 75686 states and 107930 transitions. [2024-11-08 18:21:06,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-08 18:21:06,561 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:21:06,561 INFO L215 NwaCegarLoop]: trace histogram [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 18:21:06,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-08 18:21:06,561 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:21:06,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:21:06,562 INFO L85 PathProgramCache]: Analyzing trace with hash 910053588, now seen corresponding path program 1 times [2024-11-08 18:21:06,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:21:06,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103966350] [2024-11-08 18:21:06,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:21:06,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:21:06,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:21:06,837 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-08 18:21:06,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:21:06,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103966350] [2024-11-08 18:21:06,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103966350] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:21:06,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:21:06,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 18:21:06,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72912352] [2024-11-08 18:21:06,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:21:06,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 18:21:06,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:21:06,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 18:21:06,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:21:06,839 INFO L87 Difference]: Start difference. First operand 75686 states and 107930 transitions. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 9 states have internal predecessors, (95), 0 states have call successors, (0), 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 18:21:11,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:21:11,739 INFO L93 Difference]: Finished difference Result 178230 states and 255650 transitions. [2024-11-08 18:21:11,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:21:11,739 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 9 states have internal predecessors, (95), 0 states have call successors, (0), 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 104 [2024-11-08 18:21:11,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:21:12,066 INFO L225 Difference]: With dead ends: 178230 [2024-11-08 18:21:12,066 INFO L226 Difference]: Without dead ends: 162932 [2024-11-08 18:21:12,090 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-08 18:21:12,090 INFO L432 NwaCegarLoop]: 1666 mSDtfsCounter, 10121 mSDsluCounter, 2649 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10121 SdHoareTripleChecker+Valid, 4315 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:21:12,091 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10121 Valid, 4315 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:21:12,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162932 states. [2024-11-08 18:21:15,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162932 to 90982. [2024-11-08 18:21:15,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90982 states, 90980 states have (on average 1.4261815783688723) internal successors, (129754), 90981 states have internal predecessors, (129754), 0 states have call successors, (0), 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 18:21:15,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90982 states to 90982 states and 129754 transitions. [2024-11-08 18:21:15,775 INFO L78 Accepts]: Start accepts. Automaton has 90982 states and 129754 transitions. Word has length 104 [2024-11-08 18:21:15,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:21:15,776 INFO L471 AbstractCegarLoop]: Abstraction has 90982 states and 129754 transitions. [2024-11-08 18:21:15,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 9 states have internal predecessors, (95), 0 states have call successors, (0), 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 18:21:15,776 INFO L276 IsEmpty]: Start isEmpty. Operand 90982 states and 129754 transitions. [2024-11-08 18:21:15,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-08 18:21:15,784 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:21:15,784 INFO L215 NwaCegarLoop]: trace histogram [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 18:21:15,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-08 18:21:15,785 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:21:15,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:21:15,785 INFO L85 PathProgramCache]: Analyzing trace with hash 475517652, now seen corresponding path program 1 times [2024-11-08 18:21:15,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:21:15,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285601524] [2024-11-08 18:21:15,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:21:15,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:21:15,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:21:16,057 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-08 18:21:16,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:21:16,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285601524] [2024-11-08 18:21:16,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285601524] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:21:16,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:21:16,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 18:21:16,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469549560] [2024-11-08 18:21:16,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:21:16,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 18:21:16,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:21:16,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 18:21:16,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:21:16,061 INFO L87 Difference]: Start difference. First operand 90982 states and 129754 transitions. Second operand has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 9 states have internal predecessors, (91), 0 states have call successors, (0), 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 18:21:21,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:21:21,194 INFO L93 Difference]: Finished difference Result 193526 states and 277474 transitions. [2024-11-08 18:21:21,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:21:21,194 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 9 states have internal predecessors, (91), 0 states have call successors, (0), 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 104 [2024-11-08 18:21:21,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:21:21,393 INFO L225 Difference]: With dead ends: 193526 [2024-11-08 18:21:21,393 INFO L226 Difference]: Without dead ends: 178228 [2024-11-08 18:21:21,426 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 18:21:21,427 INFO L432 NwaCegarLoop]: 1665 mSDtfsCounter, 10016 mSDsluCounter, 2722 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10016 SdHoareTripleChecker+Valid, 4387 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:21:21,427 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10016 Valid, 4387 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:21:21,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178228 states.