./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.09.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_3999ffd6-aa93-4382-a33f-8a98428fff37/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3999ffd6-aa93-4382-a33f-8a98428fff37/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3999ffd6-aa93-4382-a33f-8a98428fff37/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3999ffd6-aa93-4382-a33f-8a98428fff37/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.09.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3999ffd6-aa93-4382-a33f-8a98428fff37/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3999ffd6-aa93-4382-a33f-8a98428fff37/bin/ukojak-verify-G8NBE6pJGL --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 Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2cb37d56f61ec273f723a733aad4526e011a3841f34b26767a03fdc541dd1ee3 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:56:43,139 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:56:43,224 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3999ffd6-aa93-4382-a33f-8a98428fff37/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 03:56:43,229 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:56:43,230 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:56:43,252 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:56:43,253 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:56:43,254 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:56:43,255 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:56:43,256 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:56:43,256 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:56:43,257 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:56:43,258 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 03:56:43,258 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:56:43,259 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 03:56:43,260 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:56:43,260 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:56:43,261 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:56:43,261 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:56:43,262 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 03:56:43,263 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:56:43,263 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:56:43,264 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:56:43,265 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:56:43,265 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:56:43,266 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:56:43,267 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:56:43,267 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:56:43,268 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:56:43,269 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:56:43,269 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:56:43,270 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:56:43,270 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:56:43,271 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_3999ffd6-aa93-4382-a33f-8a98428fff37/bin/ukojak-verify-G8NBE6pJGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3999ffd6-aa93-4382-a33f-8a98428fff37/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2cb37d56f61ec273f723a733aad4526e011a3841f34b26767a03fdc541dd1ee3 [2023-11-19 03:56:43,507 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:56:43,531 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:56:43,538 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:56:43,540 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:56:43,541 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:56:43,542 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3999ffd6-aa93-4382-a33f-8a98428fff37/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.09.cil-1.c [2023-11-19 03:56:46,701 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:56:47,039 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:56:47,039 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3999ffd6-aa93-4382-a33f-8a98428fff37/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.09.cil-1.c [2023-11-19 03:56:47,057 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3999ffd6-aa93-4382-a33f-8a98428fff37/bin/ukojak-verify-G8NBE6pJGL/data/ea128cb5a/c11939ae92b14a68bb70a01e21990546/FLAG50956b602 [2023-11-19 03:56:47,073 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3999ffd6-aa93-4382-a33f-8a98428fff37/bin/ukojak-verify-G8NBE6pJGL/data/ea128cb5a/c11939ae92b14a68bb70a01e21990546 [2023-11-19 03:56:47,076 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:56:47,077 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:56:47,079 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:56:47,079 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:56:47,084 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:56:47,085 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:56:47" (1/1) ... [2023-11-19 03:56:47,086 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77e73728 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:56:47, skipping insertion in model container [2023-11-19 03:56:47,086 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:56:47" (1/1) ... [2023-11-19 03:56:47,152 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:56:47,307 WARN L240 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_3999ffd6-aa93-4382-a33f-8a98428fff37/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.09.cil-1.c[914,927] [2023-11-19 03:56:47,385 WARN L240 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_3999ffd6-aa93-4382-a33f-8a98428fff37/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.09.cil-1.c[7115,7128] [2023-11-19 03:56:47,535 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:56:47,551 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:56:47,561 WARN L240 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_3999ffd6-aa93-4382-a33f-8a98428fff37/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.09.cil-1.c[914,927] [2023-11-19 03:56:47,580 WARN L240 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_3999ffd6-aa93-4382-a33f-8a98428fff37/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.09.cil-1.c[7115,7128] [2023-11-19 03:56:47,635 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:56:47,662 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:56:47,663 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:56:47 WrapperNode [2023-11-19 03:56:47,663 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:56:47,664 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:56:47,664 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:56:47,664 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:56:47,672 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:56:47" (1/1) ... [2023-11-19 03:56:47,686 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:56:47" (1/1) ... [2023-11-19 03:56:47,748 INFO L138 Inliner]: procedures = 71, calls = 84, calls flagged for inlining = 40, calls inlined = 40, statements flattened = 890 [2023-11-19 03:56:47,749 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:56:47,750 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:56:47,750 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:56:47,750 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:56:47,759 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:56:47" (1/1) ... [2023-11-19 03:56:47,760 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:56:47" (1/1) ... [2023-11-19 03:56:47,766 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:56:47" (1/1) ... [2023-11-19 03:56:47,766 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:56:47" (1/1) ... [2023-11-19 03:56:47,785 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:56:47" (1/1) ... [2023-11-19 03:56:47,801 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:56:47" (1/1) ... [2023-11-19 03:56:47,805 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:56:47" (1/1) ... [2023-11-19 03:56:47,809 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:56:47" (1/1) ... [2023-11-19 03:56:47,816 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:56:47,817 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:56:47,818 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:56:47,818 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:56:47,819 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:56:47" (1/1) ... [2023-11-19 03:56:47,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:56:47,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3999ffd6-aa93-4382-a33f-8a98428fff37/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:56:47,865 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3999ffd6-aa93-4382-a33f-8a98428fff37/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:56:47,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3999ffd6-aa93-4382-a33f-8a98428fff37/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:56:47,902 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:56:47,903 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-11-19 03:56:47,903 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-11-19 03:56:47,903 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2023-11-19 03:56:47,903 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2023-11-19 03:56:47,904 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2023-11-19 03:56:47,904 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2023-11-19 03:56:47,904 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2023-11-19 03:56:47,905 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2023-11-19 03:56:47,905 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2023-11-19 03:56:47,905 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2023-11-19 03:56:47,905 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2023-11-19 03:56:47,905 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2023-11-19 03:56:47,906 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2023-11-19 03:56:47,906 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2023-11-19 03:56:47,906 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2023-11-19 03:56:47,908 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2023-11-19 03:56:47,908 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2023-11-19 03:56:47,908 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2023-11-19 03:56:47,908 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2023-11-19 03:56:47,908 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2023-11-19 03:56:47,908 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2023-11-19 03:56:47,909 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2023-11-19 03:56:47,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 03:56:47,909 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2023-11-19 03:56:47,909 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2023-11-19 03:56:47,909 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2023-11-19 03:56:47,909 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2023-11-19 03:56:47,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:56:47,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:56:47,911 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2023-11-19 03:56:47,911 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2023-11-19 03:56:48,043 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:56:48,045 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:56:48,946 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:56:49,577 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:56:49,577 INFO L302 CfgBuilder]: Removed 16 assume(true) statements. [2023-11-19 03:56:49,591 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:56:49 BoogieIcfgContainer [2023-11-19 03:56:49,592 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:56:49,594 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:56:49,594 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:56:49,604 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:56:49,604 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:56:49" (1/1) ... [2023-11-19 03:56:49,617 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:56:49,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:56:49,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 237 states and 349 transitions. [2023-11-19 03:56:49,706 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 349 transitions. [2023-11-19 03:56:49,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-19 03:56:49,717 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:56:49,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:56:49,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:56:50,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:56:50,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:56:50,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 242 states and 352 transitions. [2023-11-19 03:56:50,301 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 352 transitions. [2023-11-19 03:56:50,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-19 03:56:50,304 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:56:50,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:56:50,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:56:50,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:56:51,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:56:51,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 248 states and 363 transitions. [2023-11-19 03:56:51,483 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 363 transitions. [2023-11-19 03:56:51,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-19 03:56:51,486 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:56:51,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:56:51,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:56:51,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:56:52,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:56:52,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 258 states and 383 transitions. [2023-11-19 03:56:52,039 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 383 transitions. [2023-11-19 03:56:52,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-19 03:56:52,042 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:56:52,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:56:52,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:56:52,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:56:52,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:56:52,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 270 states and 406 transitions. [2023-11-19 03:56:52,824 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 406 transitions. [2023-11-19 03:56:52,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-19 03:56:52,827 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:56:52,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:56:52,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:56:52,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:56:52,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:56:52,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 270 states and 405 transitions. [2023-11-19 03:56:52,890 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 405 transitions. [2023-11-19 03:56:52,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-19 03:56:52,891 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:56:52,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:56:52,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:56:53,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:56:53,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:56:53,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 274 states and 411 transitions. [2023-11-19 03:56:53,202 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 411 transitions. [2023-11-19 03:56:53,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-19 03:56:53,204 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:56:53,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:56:53,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:56:53,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:56:53,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:56:53,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 282 states and 427 transitions. [2023-11-19 03:56:53,656 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 427 transitions. [2023-11-19 03:56:53,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-19 03:56:53,659 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:56:53,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:56:53,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:56:53,700 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 03:56:54,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:56:54,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 289 states and 437 transitions. [2023-11-19 03:56:54,133 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 437 transitions. [2023-11-19 03:56:54,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-19 03:56:54,135 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:56:54,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:56:54,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:56:54,316 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 03:56:54,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:56:54,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 290 states and 440 transitions. [2023-11-19 03:56:54,482 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 440 transitions. [2023-11-19 03:56:54,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-19 03:56:54,483 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:56:54,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:56:54,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:56:54,665 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:56:55,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:56:55,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 300 states and 462 transitions. [2023-11-19 03:56:55,444 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 462 transitions. [2023-11-19 03:56:55,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-19 03:56:55,445 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:56:55,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:56:55,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:56:55,574 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 03:56:55,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:56:55,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 301 states and 463 transitions. [2023-11-19 03:56:55,636 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 463 transitions. [2023-11-19 03:56:55,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-19 03:56:55,637 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:56:55,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:56:55,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:56:55,959 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:56:58,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:56:58,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 323 states and 507 transitions. [2023-11-19 03:56:58,534 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 507 transitions. [2023-11-19 03:56:58,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-19 03:56:58,536 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:56:58,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:56:58,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:56:58,709 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 03:56:58,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:56:58,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 327 states and 512 transitions. [2023-11-19 03:56:58,938 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 512 transitions. [2023-11-19 03:56:58,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-19 03:56:58,943 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:56:58,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:56:58,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:56:59,005 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 03:56:59,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:56:59,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 327 states and 510 transitions. [2023-11-19 03:56:59,442 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 510 transitions. [2023-11-19 03:56:59,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-19 03:56:59,443 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:56:59,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:56:59,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:56:59,953 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 03:57:02,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:57:02,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 340 states and 537 transitions. [2023-11-19 03:57:02,411 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 537 transitions. [2023-11-19 03:57:02,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-19 03:57:02,413 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:57:02,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:57:02,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:57:02,545 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 03:57:03,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:57:03,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 647 states to 347 states and 553 transitions. [2023-11-19 03:57:03,502 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 553 transitions. [2023-11-19 03:57:03,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-19 03:57:03,506 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:57:03,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:57:03,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:57:03,859 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-19 03:57:05,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:57:05,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 346 states and 550 transitions. [2023-11-19 03:57:05,216 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 550 transitions. [2023-11-19 03:57:05,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-19 03:57:05,217 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:57:05,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:57:05,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:57:05,352 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 03:57:07,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:57:07,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 354 states and 567 transitions. [2023-11-19 03:57:07,205 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 567 transitions. [2023-11-19 03:57:07,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-19 03:57:07,207 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:57:07,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:57:07,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:57:07,333 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 03:57:07,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:57:07,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 355 states and 569 transitions. [2023-11-19 03:57:07,723 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 569 transitions. [2023-11-19 03:57:07,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-19 03:57:07,725 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:57:07,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:57:07,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:57:07,777 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 03:57:08,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:57:08,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 362 states and 593 transitions. [2023-11-19 03:57:08,811 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 593 transitions. [2023-11-19 03:57:08,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-19 03:57:08,813 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:57:08,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:57:08,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:57:08,859 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-19 03:57:09,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:57:09,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 364 states and 598 transitions. [2023-11-19 03:57:09,212 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 598 transitions. [2023-11-19 03:57:09,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-19 03:57:09,215 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:57:09,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:57:09,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:57:09,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:57:09,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:57:09,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 766 states to 394 states and 656 transitions. [2023-11-19 03:57:09,875 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 656 transitions. [2023-11-19 03:57:09,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-19 03:57:09,879 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:57:09,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:57:09,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:57:10,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:57:10,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:57:10,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 766 states to 395 states and 656 transitions. [2023-11-19 03:57:10,069 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 656 transitions. [2023-11-19 03:57:10,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-19 03:57:10,071 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:57:10,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:57:10,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:57:10,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:57:10,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:57:10,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 766 states to 396 states and 656 transitions. [2023-11-19 03:57:10,218 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 656 transitions. [2023-11-19 03:57:10,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-19 03:57:10,220 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:57:10,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:57:10,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:57:10,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:57:10,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:57:10,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 766 states to 397 states and 656 transitions. [2023-11-19 03:57:10,366 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 656 transitions. [2023-11-19 03:57:10,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-19 03:57:10,368 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:57:10,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:57:10,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:57:10,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:57:10,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:57:10,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 766 states to 398 states and 656 transitions. [2023-11-19 03:57:10,542 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 656 transitions. [2023-11-19 03:57:10,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-19 03:57:10,544 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:57:10,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:57:10,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:57:10,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:57:10,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:57:10,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 766 states to 399 states and 656 transitions. [2023-11-19 03:57:10,663 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 656 transitions. [2023-11-19 03:57:10,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-19 03:57:10,665 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:57:10,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:57:10,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:57:10,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:57:10,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:57:10,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 766 states to 400 states and 656 transitions. [2023-11-19 03:57:10,785 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 656 transitions. [2023-11-19 03:57:10,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-19 03:57:10,787 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:57:10,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:57:10,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:57:10,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:57:10,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:57:10,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 766 states to 401 states and 656 transitions. [2023-11-19 03:57:10,903 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 656 transitions. [2023-11-19 03:57:10,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-19 03:57:10,905 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:57:10,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:57:10,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:57:11,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:57:11,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:57:11,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 766 states to 402 states and 656 transitions. [2023-11-19 03:57:11,083 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 656 transitions. [2023-11-19 03:57:11,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-19 03:57:11,084 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:57:11,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:57:11,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:57:11,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:57:12,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:57:12,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 429 states and 713 transitions. [2023-11-19 03:57:12,302 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 713 transitions. [2023-11-19 03:57:12,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-19 03:57:12,304 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:57:12,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:57:12,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:57:12,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:57:12,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:57:12,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 430 states and 713 transitions. [2023-11-19 03:57:12,456 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 713 transitions. [2023-11-19 03:57:12,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-19 03:57:12,458 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:57:12,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:57:12,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:57:12,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:57:12,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:57:12,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 431 states and 713 transitions. [2023-11-19 03:57:12,616 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 713 transitions. [2023-11-19 03:57:12,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-19 03:57:12,618 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:57:12,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:57:12,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:57:12,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:57:12,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:57:12,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 432 states and 713 transitions. [2023-11-19 03:57:12,801 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 713 transitions. [2023-11-19 03:57:12,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-19 03:57:12,803 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:57:12,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:57:12,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:57:12,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:57:12,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:57:12,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 433 states and 713 transitions. [2023-11-19 03:57:12,921 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 713 transitions. [2023-11-19 03:57:12,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-19 03:57:12,923 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:57:12,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:57:12,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:57:13,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:57:13,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:57:13,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 434 states and 713 transitions. [2023-11-19 03:57:13,054 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 713 transitions. [2023-11-19 03:57:13,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-19 03:57:13,056 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:57:13,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:57:13,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:57:13,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:57:13,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:57:13,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 435 states and 713 transitions. [2023-11-19 03:57:13,183 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 713 transitions. [2023-11-19 03:57:13,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-19 03:57:13,185 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:57:13,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:57:13,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:57:13,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:57:14,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:57:14,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 456 states and 758 transitions. [2023-11-19 03:57:14,415 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 758 transitions. [2023-11-19 03:57:14,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-19 03:57:14,418 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:57:14,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:57:14,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:57:14,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:57:14,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:57:14,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 457 states and 758 transitions. [2023-11-19 03:57:14,555 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 758 transitions. [2023-11-19 03:57:14,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-19 03:57:14,557 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:57:14,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:57:14,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:57:14,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:57:14,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:57:14,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 458 states and 758 transitions. [2023-11-19 03:57:14,690 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 758 transitions. [2023-11-19 03:57:14,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-19 03:57:14,692 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:57:14,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:57:14,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:57:14,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:57:14,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:57:14,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 459 states and 758 transitions. [2023-11-19 03:57:14,808 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 758 transitions. [2023-11-19 03:57:14,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-19 03:57:14,810 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:57:14,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:57:14,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:57:14,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:57:14,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:57:14,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 460 states and 758 transitions. [2023-11-19 03:57:14,917 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 758 transitions. [2023-11-19 03:57:14,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-19 03:57:14,919 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:57:14,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:57:14,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:57:15,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:57:15,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:57:15,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 461 states and 758 transitions. [2023-11-19 03:57:15,026 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 758 transitions. [2023-11-19 03:57:15,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-19 03:57:15,028 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:57:15,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:57:15,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:57:15,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:57:16,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:57:16,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 925 states to 479 states and 797 transitions. [2023-11-19 03:57:16,295 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 797 transitions. [2023-11-19 03:57:16,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-19 03:57:16,297 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:57:16,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:57:16,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:57:16,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:57:16,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:57:16,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 925 states to 480 states and 797 transitions. [2023-11-19 03:57:16,401 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 797 transitions. [2023-11-19 03:57:16,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-19 03:57:16,403 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:57:16,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:57:16,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:57:16,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:57:16,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:57:16,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 925 states to 481 states and 797 transitions. [2023-11-19 03:57:16,510 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 797 transitions. [2023-11-19 03:57:16,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-19 03:57:16,512 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:57:16,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:57:16,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:57:16,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:57:16,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:57:16,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 925 states to 482 states and 797 transitions. [2023-11-19 03:57:16,618 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 797 transitions. [2023-11-19 03:57:16,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-19 03:57:16,620 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:57:16,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:57:16,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:57:16,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:57:17,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:57:17,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 958 states to 494 states and 824 transitions. [2023-11-19 03:57:17,895 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 824 transitions. [2023-11-19 03:57:17,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-19 03:57:17,897 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:57:17,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:57:17,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:57:17,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:57:18,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:57:18,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 958 states to 495 states and 824 transitions. [2023-11-19 03:57:18,011 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 824 transitions. [2023-11-19 03:57:18,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-19 03:57:18,013 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:57:18,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:57:18,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:57:18,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:57:18,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:57:18,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 985 states to 503 states and 838 transitions. [2023-11-19 03:57:18,883 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 838 transitions. [2023-11-19 03:57:18,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-19 03:57:18,885 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:57:18,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:57:18,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:57:18,922 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-19 03:57:19,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:57:19,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 993 states to 508 states and 846 transitions. [2023-11-19 03:57:19,365 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 846 transitions. [2023-11-19 03:57:19,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-19 03:57:19,367 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:57:19,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:57:19,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:57:19,408 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 03:57:19,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:57:19,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 996 states to 509 states and 849 transitions. [2023-11-19 03:57:19,928 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 849 transitions. [2023-11-19 03:57:19,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-19 03:57:19,930 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:57:19,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:57:19,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:57:19,991 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 03:57:21,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:57:21,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1011 states to 516 states and 864 transitions. [2023-11-19 03:57:21,208 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 864 transitions. [2023-11-19 03:57:21,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-19 03:57:21,210 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:57:21,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:57:21,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:57:21,331 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 03:57:21,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:57:21,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1023 states to 521 states and 876 transitions. [2023-11-19 03:57:21,912 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 876 transitions. [2023-11-19 03:57:21,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-19 03:57:21,914 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:57:21,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:57:21,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:57:22,197 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 03:57:23,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:57:23,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1026 states to 523 states and 879 transitions. [2023-11-19 03:57:23,775 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 879 transitions. [2023-11-19 03:57:23,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-19 03:57:23,778 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:57:23,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:57:23,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:57:23,899 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 03:57:24,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:57:24,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1029 states to 525 states and 882 transitions. [2023-11-19 03:57:24,951 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 882 transitions. [2023-11-19 03:57:24,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-19 03:57:24,953 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:57:24,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:57:24,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:57:25,012 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-19 03:57:26,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:57:26,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1040 states to 531 states and 893 transitions. [2023-11-19 03:57:26,329 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 893 transitions. [2023-11-19 03:57:26,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-19 03:57:26,331 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:57:26,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:57:26,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:57:26,388 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-19 03:57:27,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:57:27,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1057 states to 537 states and 910 transitions. [2023-11-19 03:57:27,342 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 910 transitions. [2023-11-19 03:57:27,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-19 03:57:27,343 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:57:27,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:57:27,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:57:27,394 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-19 03:57:29,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:57:29,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1075 states to 547 states and 928 transitions. [2023-11-19 03:57:29,214 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 928 transitions. [2023-11-19 03:57:29,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-19 03:57:29,215 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:57:29,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:57:29,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:57:29,250 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-19 03:57:30,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:57:30,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1092 states to 553 states and 945 transitions. [2023-11-19 03:57:30,246 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 945 transitions. [2023-11-19 03:57:30,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-19 03:57:30,247 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:57:30,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:57:30,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:57:30,345 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-19 03:57:30,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:57:30,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1096 states to 555 states and 949 transitions. [2023-11-19 03:57:30,671 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 949 transitions. [2023-11-19 03:57:30,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-19 03:57:30,673 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:57:30,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:57:30,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:57:30,727 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 03:57:31,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:57:31,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1095 states to 555 states and 948 transitions. [2023-11-19 03:57:31,091 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 948 transitions. [2023-11-19 03:57:31,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-19 03:57:31,092 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:57:31,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:57:31,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:57:31,138 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 03:57:31,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:57:31,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1105 states to 562 states and 958 transitions. [2023-11-19 03:57:31,818 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 958 transitions. [2023-11-19 03:57:31,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-19 03:57:31,820 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:57:31,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:57:31,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:57:31,956 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-11-19 03:57:32,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:57:32,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1108 states to 563 states and 961 transitions. [2023-11-19 03:57:32,426 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 961 transitions. [2023-11-19 03:57:32,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-19 03:57:32,428 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:57:32,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:57:32,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:57:32,538 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked.