./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--asb100.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 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_8efe8df7-3df9-42c5-bbab-11a354475704/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efe8df7-3df9-42c5-bbab-11a354475704/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efe8df7-3df9-42c5-bbab-11a354475704/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efe8df7-3df9-42c5-bbab-11a354475704/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--asb100.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efe8df7-3df9-42c5-bbab-11a354475704/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efe8df7-3df9-42c5-bbab-11a354475704/bin/utaipan-verify-mE87zJ7Ire --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a172742698d01ea3d6a7e277a97e7636a1425e62fd3035feb511b810f7b798f5 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:27:44,111 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:27:44,252 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efe8df7-3df9-42c5-bbab-11a354475704/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 21:27:44,262 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:27:44,263 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:27:44,326 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:27:44,327 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:27:44,328 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:27:44,329 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:27:44,335 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:27:44,335 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:27:44,336 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:27:44,336 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:27:44,338 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:27:44,339 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:27:44,339 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:27:44,340 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:27:44,340 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:27:44,341 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:27:44,341 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:27:44,342 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:27:44,342 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:27:44,343 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:27:44,344 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:27:44,344 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:27:44,345 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:27:44,345 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:27:44,346 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:27:44,362 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:27:44,362 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:27:44,364 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:27:44,364 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:27:44,364 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:27:44,365 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:27:44,366 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:27:44,366 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:27:44,366 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:27:44,367 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:27:44,367 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:27:44,367 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:27:44,367 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:27:44,368 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:27:44,368 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:27:44,368 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:27:44,369 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_8efe8df7-3df9-42c5-bbab-11a354475704/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efe8df7-3df9-42c5-bbab-11a354475704/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a172742698d01ea3d6a7e277a97e7636a1425e62fd3035feb511b810f7b798f5 [2023-11-23 21:27:44,699 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:27:44,744 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:27:44,748 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:27:44,749 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:27:44,750 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:27:44,751 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efe8df7-3df9-42c5-bbab-11a354475704/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--asb100.ko-main.cil.out.i [2023-11-23 21:27:48,068 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:27:48,750 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:27:48,751 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efe8df7-3df9-42c5-bbab-11a354475704/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--asb100.ko-main.cil.out.i [2023-11-23 21:27:48,811 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efe8df7-3df9-42c5-bbab-11a354475704/bin/utaipan-verify-mE87zJ7Ire/data/45fadb571/aa894fbe18f2477a9445c21118233601/FLAGd45806a5e [2023-11-23 21:27:48,843 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efe8df7-3df9-42c5-bbab-11a354475704/bin/utaipan-verify-mE87zJ7Ire/data/45fadb571/aa894fbe18f2477a9445c21118233601 [2023-11-23 21:27:48,850 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:27:48,853 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:27:48,857 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:27:48,858 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:27:48,864 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:27:48,864 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:27:48" (1/1) ... [2023-11-23 21:27:48,866 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2174b5b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:48, skipping insertion in model container [2023-11-23 21:27:48,866 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:27:48" (1/1) ... [2023-11-23 21:27:49,005 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:27:50,764 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_8efe8df7-3df9-42c5-bbab-11a354475704/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--asb100.ko-main.cil.out.i[168612,168625] [2023-11-23 21:27:51,019 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:27:51,129 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:27:51,442 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_8efe8df7-3df9-42c5-bbab-11a354475704/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--asb100.ko-main.cil.out.i[168612,168625] [2023-11-23 21:27:51,471 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:27:51,809 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:27:51,817 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:27:51,818 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:51 WrapperNode [2023-11-23 21:27:51,818 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:27:51,819 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:27:51,820 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:27:51,820 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:27:51,828 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:51" (1/1) ... [2023-11-23 21:27:51,949 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:51" (1/1) ... [2023-11-23 21:27:52,246 INFO L138 Inliner]: procedures = 184, calls = 2071, calls flagged for inlining = 74, calls inlined = 66, statements flattened = 5448 [2023-11-23 21:27:52,247 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:27:52,249 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:27:52,249 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:27:52,249 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:27:52,262 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:51" (1/1) ... [2023-11-23 21:27:52,262 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:51" (1/1) ... [2023-11-23 21:27:52,325 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:51" (1/1) ... [2023-11-23 21:27:52,326 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:51" (1/1) ... [2023-11-23 21:27:52,478 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:51" (1/1) ... [2023-11-23 21:27:52,506 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:51" (1/1) ... [2023-11-23 21:27:52,552 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:51" (1/1) ... [2023-11-23 21:27:52,580 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:51" (1/1) ... [2023-11-23 21:27:52,617 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:27:52,620 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:27:52,621 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:27:52,621 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:27:52,623 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:51" (1/1) ... [2023-11-23 21:27:52,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:27:52,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efe8df7-3df9-42c5-bbab-11a354475704/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:27:52,663 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efe8df7-3df9-42c5-bbab-11a354475704/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:27:52,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efe8df7-3df9-42c5-bbab-11a354475704/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:27:52,715 INFO L130 BoogieDeclarations]: Found specification of procedure show_fan [2023-11-23 21:27:52,716 INFO L138 BoogieDeclarations]: Found implementation of procedure show_fan [2023-11-23 21:27:52,716 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2023-11-23 21:27:52,716 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2023-11-23 21:27:52,716 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_read_word_swapped [2023-11-23 21:27:52,717 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_read_word_swapped [2023-11-23 21:27:52,717 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_update_lock_of_asb100_data [2023-11-23 21:27:52,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_update_lock_of_asb100_data [2023-11-23 21:27:52,717 INFO L130 BoogieDeclarations]: Found specification of procedure show_in_max [2023-11-23 21:27:52,718 INFO L138 BoogieDeclarations]: Found implementation of procedure show_in_max [2023-11-23 21:27:52,718 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_update_lock_of_asb100_data [2023-11-23 21:27:52,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_update_lock_of_asb100_data [2023-11-23 21:27:52,718 INFO L130 BoogieDeclarations]: Found specification of procedure set_in_max [2023-11-23 21:27:52,718 INFO L138 BoogieDeclarations]: Found implementation of procedure set_in_max [2023-11-23 21:27:52,719 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:27:52,719 INFO L130 BoogieDeclarations]: Found specification of procedure set_temp_hyst [2023-11-23 21:27:52,719 INFO L138 BoogieDeclarations]: Found implementation of procedure set_temp_hyst [2023-11-23 21:27:52,719 INFO L130 BoogieDeclarations]: Found specification of procedure FAN_TO_REG [2023-11-23 21:27:52,720 INFO L138 BoogieDeclarations]: Found implementation of procedure FAN_TO_REG [2023-11-23 21:27:52,720 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2023-11-23 21:27:52,720 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2023-11-23 21:27:52,720 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_get_clientdata [2023-11-23 21:27:52,721 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_get_clientdata [2023-11-23 21:27:52,721 INFO L130 BoogieDeclarations]: Found specification of procedure show_temp_hyst [2023-11-23 21:27:52,721 INFO L138 BoogieDeclarations]: Found implementation of procedure show_temp_hyst [2023-11-23 21:27:52,721 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf_temp_from_reg [2023-11-23 21:27:52,721 INFO L138 BoogieDeclarations]: Found implementation of procedure sprintf_temp_from_reg [2023-11-23 21:27:52,722 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 21:27:52,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 21:27:52,722 INFO L130 BoogieDeclarations]: Found specification of procedure asb100_update_device [2023-11-23 21:27:52,722 INFO L138 BoogieDeclarations]: Found implementation of procedure asb100_update_device [2023-11-23 21:27:52,723 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_write_word_swapped [2023-11-23 21:27:52,723 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_write_word_swapped [2023-11-23 21:27:52,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_asb100_data [2023-11-23 21:27:52,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_asb100_data [2023-11-23 21:27:52,723 INFO L130 BoogieDeclarations]: Found specification of procedure show_fan_div [2023-11-23 21:27:52,724 INFO L138 BoogieDeclarations]: Found implementation of procedure show_fan_div [2023-11-23 21:27:52,724 INFO L130 BoogieDeclarations]: Found specification of procedure set_fan_div [2023-11-23 21:27:52,724 INFO L138 BoogieDeclarations]: Found implementation of procedure set_fan_div [2023-11-23 21:27:52,724 INFO L130 BoogieDeclarations]: Found specification of procedure LM75_TEMP_TO_REG [2023-11-23 21:27:52,724 INFO L138 BoogieDeclarations]: Found implementation of procedure LM75_TEMP_TO_REG [2023-11-23 21:27:52,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:27:52,725 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-23 21:27:52,725 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-23 21:27:52,725 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-23 21:27:52,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-23 21:27:52,726 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2023-11-23 21:27:52,726 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2023-11-23 21:27:52,726 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2023-11-23 21:27:52,726 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2023-11-23 21:27:52,727 INFO L130 BoogieDeclarations]: Found specification of procedure show_temp [2023-11-23 21:27:52,727 INFO L138 BoogieDeclarations]: Found implementation of procedure show_temp [2023-11-23 21:27:52,727 INFO L130 BoogieDeclarations]: Found specification of procedure set_temp_max [2023-11-23 21:27:52,727 INFO L138 BoogieDeclarations]: Found implementation of procedure set_temp_max [2023-11-23 21:27:52,727 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 21:27:52,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 21:27:52,728 INFO L130 BoogieDeclarations]: Found specification of procedure IN_TO_REG [2023-11-23 21:27:52,728 INFO L138 BoogieDeclarations]: Found implementation of procedure IN_TO_REG [2023-11-23 21:27:52,728 INFO L130 BoogieDeclarations]: Found specification of procedure set_in_min [2023-11-23 21:27:52,728 INFO L138 BoogieDeclarations]: Found implementation of procedure set_in_min [2023-11-23 21:27:52,729 INFO L130 BoogieDeclarations]: Found specification of procedure asb100_write_value [2023-11-23 21:27:52,729 INFO L138 BoogieDeclarations]: Found implementation of procedure asb100_write_value [2023-11-23 21:27:52,729 INFO L130 BoogieDeclarations]: Found specification of procedure TEMP_TO_REG [2023-11-23 21:27:52,729 INFO L138 BoogieDeclarations]: Found implementation of procedure TEMP_TO_REG [2023-11-23 21:27:52,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:27:52,730 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-11-23 21:27:52,730 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-11-23 21:27:52,730 INFO L130 BoogieDeclarations]: Found specification of procedure show_in_min [2023-11-23 21:27:52,730 INFO L138 BoogieDeclarations]: Found implementation of procedure show_in_min [2023-11-23 21:27:52,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:27:52,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:27:52,731 INFO L130 BoogieDeclarations]: Found specification of procedure set_fan_min [2023-11-23 21:27:52,731 INFO L138 BoogieDeclarations]: Found implementation of procedure set_fan_min [2023-11-23 21:27:52,731 INFO L130 BoogieDeclarations]: Found specification of procedure show_fan_min [2023-11-23 21:27:52,731 INFO L138 BoogieDeclarations]: Found implementation of procedure show_fan_min [2023-11-23 21:27:52,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:27:52,732 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-23 21:27:52,732 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_asb100_data [2023-11-23 21:27:52,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_asb100_data [2023-11-23 21:27:52,732 INFO L130 BoogieDeclarations]: Found specification of procedure show_temp_max [2023-11-23 21:27:52,733 INFO L138 BoogieDeclarations]: Found implementation of procedure show_temp_max [2023-11-23 21:27:52,733 INFO L130 BoogieDeclarations]: Found specification of procedure show_alarm [2023-11-23 21:27:52,733 INFO L138 BoogieDeclarations]: Found implementation of procedure show_alarm [2023-11-23 21:27:52,733 INFO L130 BoogieDeclarations]: Found specification of procedure SENSORS_LIMIT [2023-11-23 21:27:52,733 INFO L138 BoogieDeclarations]: Found implementation of procedure SENSORS_LIMIT [2023-11-23 21:27:52,734 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_read_byte_data [2023-11-23 21:27:52,734 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_read_byte_data [2023-11-23 21:27:52,734 INFO L130 BoogieDeclarations]: Found specification of procedure show_in [2023-11-23 21:27:52,734 INFO L138 BoogieDeclarations]: Found implementation of procedure show_in [2023-11-23 21:27:52,734 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:27:52,735 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtol [2023-11-23 21:27:52,735 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtol [2023-11-23 21:27:52,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:27:52,735 INFO L130 BoogieDeclarations]: Found specification of procedure IN_FROM_REG [2023-11-23 21:27:52,735 INFO L138 BoogieDeclarations]: Found implementation of procedure IN_FROM_REG [2023-11-23 21:27:52,736 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtoul [2023-11-23 21:27:52,736 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtoul [2023-11-23 21:27:52,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:27:52,736 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_unregister_device [2023-11-23 21:27:52,736 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_unregister_device [2023-11-23 21:27:52,737 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-23 21:27:52,737 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-23 21:27:52,737 INFO L130 BoogieDeclarations]: Found specification of procedure asb100_detect [2023-11-23 21:27:52,737 INFO L138 BoogieDeclarations]: Found implementation of procedure asb100_detect [2023-11-23 21:27:52,737 INFO L130 BoogieDeclarations]: Found specification of procedure asb100_read_value [2023-11-23 21:27:52,738 INFO L138 BoogieDeclarations]: Found implementation of procedure asb100_read_value [2023-11-23 21:27:52,738 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2023-11-23 21:27:52,738 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2023-11-23 21:27:52,738 INFO L130 BoogieDeclarations]: Found specification of procedure FAN_FROM_REG [2023-11-23 21:27:52,738 INFO L138 BoogieDeclarations]: Found implementation of procedure FAN_FROM_REG [2023-11-23 21:27:52,739 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2023-11-23 21:27:52,739 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2023-11-23 21:27:52,739 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_new_dummy [2023-11-23 21:27:52,739 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_new_dummy [2023-11-23 21:27:52,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:27:52,740 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_write_byte_data [2023-11-23 21:27:52,740 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_write_byte_data [2023-11-23 21:27:52,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:27:52,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:27:52,740 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-23 21:27:52,740 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-23 21:27:53,474 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:27:53,478 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:27:59,839 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:28:02,101 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:28:02,101 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 21:28:02,104 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:28:02 BoogieIcfgContainer [2023-11-23 21:28:02,104 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:28:02,109 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:28:02,110 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:28:02,114 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:28:02,115 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:27:48" (1/3) ... [2023-11-23 21:28:02,118 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d7f2cf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:28:02, skipping insertion in model container [2023-11-23 21:28:02,118 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:51" (2/3) ... [2023-11-23 21:28:02,119 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d7f2cf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:28:02, skipping insertion in model container [2023-11-23 21:28:02,120 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:28:02" (3/3) ... [2023-11-23 21:28:02,122 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--hwmon--asb100.ko-main.cil.out.i [2023-11-23 21:28:02,151 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:28:02,151 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:28:02,309 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:28:02,322 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, 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;@4b3803d4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:28:02,323 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:28:02,340 INFO L276 IsEmpty]: Start isEmpty. Operand has 1049 states, 708 states have (on average 1.5254237288135593) internal successors, (1080), 722 states have internal predecessors, (1080), 285 states have call successors, (285), 54 states have call predecessors, (285), 54 states have return successors, (285), 283 states have call predecessors, (285), 285 states have call successors, (285) [2023-11-23 21:28:02,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-23 21:28:02,364 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:28:02,366 INFO L195 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] [2023-11-23 21:28:02,367 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:28:02,377 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:28:02,383 INFO L85 PathProgramCache]: Analyzing trace with hash 594961159, now seen corresponding path program 1 times [2023-11-23 21:28:02,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:28:02,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355535550] [2023-11-23 21:28:02,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:28:02,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:28:03,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:28:03,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:28:03,579 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:28:03,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355535550] [2023-11-23 21:28:03,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355535550] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:28:03,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:28:03,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:28:03,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065866591] [2023-11-23 21:28:03,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:28:03,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:28:03,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:28:03,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:28:03,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:28:03,644 INFO L87 Difference]: Start difference. First operand has 1049 states, 708 states have (on average 1.5254237288135593) internal successors, (1080), 722 states have internal predecessors, (1080), 285 states have call successors, (285), 54 states have call predecessors, (285), 54 states have return successors, (285), 283 states have call predecessors, (285), 285 states have call successors, (285) Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-23 21:28:04,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:28:04,740 INFO L93 Difference]: Finished difference Result 3138 states and 5242 transitions. [2023-11-23 21:28:04,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:28:04,745 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 32 [2023-11-23 21:28:04,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:28:04,788 INFO L225 Difference]: With dead ends: 3138 [2023-11-23 21:28:04,788 INFO L226 Difference]: Without dead ends: 2086 [2023-11-23 21:28:04,906 INFO L412 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 [2023-11-23 21:28:04,911 INFO L413 NwaCegarLoop]: 1476 mSDtfsCounter, 1623 mSDsluCounter, 1472 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1623 SdHoareTripleChecker+Valid, 2948 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-23 21:28:04,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1623 Valid, 2948 Invalid, 331 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-23 21:28:04,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2086 states. [2023-11-23 21:28:05,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2086 to 2069. [2023-11-23 21:28:05,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2069 states, 1402 states have (on average 1.522111269614836) internal successors, (2134), 1418 states have internal predecessors, (2134), 560 states have call successors, (560), 107 states have call predecessors, (560), 106 states have return successors, (551), 547 states have call predecessors, (551), 551 states have call successors, (551) [2023-11-23 21:28:05,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2069 states to 2069 states and 3245 transitions. [2023-11-23 21:28:05,146 INFO L78 Accepts]: Start accepts. Automaton has 2069 states and 3245 transitions. Word has length 32 [2023-11-23 21:28:05,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:28:05,147 INFO L495 AbstractCegarLoop]: Abstraction has 2069 states and 3245 transitions. [2023-11-23 21:28:05,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-23 21:28:05,147 INFO L276 IsEmpty]: Start isEmpty. Operand 2069 states and 3245 transitions. [2023-11-23 21:28:05,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-23 21:28:05,151 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:28:05,151 INFO L195 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] [2023-11-23 21:28:05,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:28:05,152 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:28:05,152 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:28:05,152 INFO L85 PathProgramCache]: Analyzing trace with hash -262443056, now seen corresponding path program 1 times [2023-11-23 21:28:05,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:28:05,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386415736] [2023-11-23 21:28:05,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:28:05,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:28:05,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:28:05,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:28:05,779 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:28:05,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386415736] [2023-11-23 21:28:05,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386415736] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:28:05,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:28:05,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:28:05,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573686094] [2023-11-23 21:28:05,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:28:05,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:28:05,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:28:05,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:28:05,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:28:05,789 INFO L87 Difference]: Start difference. First operand 2069 states and 3245 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-23 21:28:06,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:28:06,815 INFO L93 Difference]: Finished difference Result 6188 states and 9703 transitions. [2023-11-23 21:28:06,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:28:06,816 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 31 [2023-11-23 21:28:06,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:28:06,868 INFO L225 Difference]: With dead ends: 6188 [2023-11-23 21:28:06,869 INFO L226 Difference]: Without dead ends: 4120 [2023-11-23 21:28:06,888 INFO L412 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 [2023-11-23 21:28:06,889 INFO L413 NwaCegarLoop]: 1576 mSDtfsCounter, 1616 mSDsluCounter, 1468 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1616 SdHoareTripleChecker+Valid, 3044 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-23 21:28:06,890 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1616 Valid, 3044 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-23 21:28:06,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4120 states. [2023-11-23 21:28:07,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4120 to 4103. [2023-11-23 21:28:07,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4103 states, 2783 states have (on average 1.5206611570247934) internal successors, (4232), 2807 states have internal predecessors, (4232), 1107 states have call successors, (1107), 213 states have call predecessors, (1107), 212 states have return successors, (1098), 1090 states have call predecessors, (1098), 1098 states have call successors, (1098) [2023-11-23 21:28:07,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4103 states to 4103 states and 6437 transitions. [2023-11-23 21:28:07,241 INFO L78 Accepts]: Start accepts. Automaton has 4103 states and 6437 transitions. Word has length 31 [2023-11-23 21:28:07,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:28:07,242 INFO L495 AbstractCegarLoop]: Abstraction has 4103 states and 6437 transitions. [2023-11-23 21:28:07,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-23 21:28:07,242 INFO L276 IsEmpty]: Start isEmpty. Operand 4103 states and 6437 transitions. [2023-11-23 21:28:07,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-23 21:28:07,245 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:28:07,245 INFO L195 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] [2023-11-23 21:28:07,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:28:07,246 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:28:07,246 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:28:07,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1684901878, now seen corresponding path program 1 times [2023-11-23 21:28:07,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:28:07,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012445429] [2023-11-23 21:28:07,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:28:07,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:28:07,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:28:07,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:28:07,845 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:28:07,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012445429] [2023-11-23 21:28:07,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012445429] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:28:07,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:28:07,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:28:07,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865663975] [2023-11-23 21:28:07,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:28:07,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:28:07,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:28:07,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:28:07,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:28:07,853 INFO L87 Difference]: Start difference. First operand 4103 states and 6437 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-23 21:28:09,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:28:09,005 INFO L93 Difference]: Finished difference Result 12274 states and 19251 transitions. [2023-11-23 21:28:09,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:28:09,006 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 34 [2023-11-23 21:28:09,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:28:09,073 INFO L225 Difference]: With dead ends: 12274 [2023-11-23 21:28:09,074 INFO L226 Difference]: Without dead ends: 8172 [2023-11-23 21:28:09,102 INFO L412 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 [2023-11-23 21:28:09,103 INFO L413 NwaCegarLoop]: 1590 mSDtfsCounter, 1613 mSDsluCounter, 1468 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1613 SdHoareTripleChecker+Valid, 3058 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-23 21:28:09,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1613 Valid, 3058 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-23 21:28:09,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8172 states. [2023-11-23 21:28:09,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8172 to 8155. [2023-11-23 21:28:09,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8155 states, 5533 states have (on average 1.5192481474787638) internal successors, (8406), 5573 states have internal predecessors, (8406), 2197 states have call successors, (2197), 425 states have call predecessors, (2197), 424 states have return successors, (2188), 2172 states have call predecessors, (2188), 2188 states have call successors, (2188) [2023-11-23 21:28:09,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8155 states to 8155 states and 12791 transitions. [2023-11-23 21:28:09,639 INFO L78 Accepts]: Start accepts. Automaton has 8155 states and 12791 transitions. Word has length 34 [2023-11-23 21:28:09,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:28:09,640 INFO L495 AbstractCegarLoop]: Abstraction has 8155 states and 12791 transitions. [2023-11-23 21:28:09,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-23 21:28:09,640 INFO L276 IsEmpty]: Start isEmpty. Operand 8155 states and 12791 transitions. [2023-11-23 21:28:09,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-23 21:28:09,642 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:28:09,642 INFO L195 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] [2023-11-23 21:28:09,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 21:28:09,643 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:28:09,643 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:28:09,643 INFO L85 PathProgramCache]: Analyzing trace with hash 177153447, now seen corresponding path program 1 times [2023-11-23 21:28:09,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:28:09,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049120028] [2023-11-23 21:28:09,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:28:09,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:28:09,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:28:10,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:28:10,067 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:28:10,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049120028] [2023-11-23 21:28:10,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049120028] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:28:10,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:28:10,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:28:10,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113148594] [2023-11-23 21:28:10,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:28:10,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:28:10,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:28:10,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:28:10,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:28:10,070 INFO L87 Difference]: Start difference. First operand 8155 states and 12791 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-23 21:28:11,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:28:11,483 INFO L93 Difference]: Finished difference Result 24398 states and 38257 transitions. [2023-11-23 21:28:11,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:28:11,484 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 32 [2023-11-23 21:28:11,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:28:11,627 INFO L225 Difference]: With dead ends: 24398 [2023-11-23 21:28:11,627 INFO L226 Difference]: Without dead ends: 16244 [2023-11-23 21:28:11,689 INFO L412 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 [2023-11-23 21:28:11,696 INFO L413 NwaCegarLoop]: 1604 mSDtfsCounter, 1615 mSDsluCounter, 1468 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1615 SdHoareTripleChecker+Valid, 3072 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-23 21:28:11,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1615 Valid, 3072 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-23 21:28:11,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16244 states. [2023-11-23 21:28:12,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16244 to 16227. [2023-11-23 21:28:12,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16227 states, 11009 states have (on average 1.517849032609683) internal successors, (16710), 11081 states have internal predecessors, (16710), 4369 states have call successors, (4369), 849 states have call predecessors, (4369), 848 states have return successors, (4360), 4328 states have call predecessors, (4360), 4360 states have call successors, (4360) [2023-11-23 21:28:13,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16227 states to 16227 states and 25439 transitions. [2023-11-23 21:28:13,060 INFO L78 Accepts]: Start accepts. Automaton has 16227 states and 25439 transitions. Word has length 32 [2023-11-23 21:28:13,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:28:13,060 INFO L495 AbstractCegarLoop]: Abstraction has 16227 states and 25439 transitions. [2023-11-23 21:28:13,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-23 21:28:13,062 INFO L276 IsEmpty]: Start isEmpty. Operand 16227 states and 25439 transitions. [2023-11-23 21:28:13,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-11-23 21:28:13,065 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:28:13,066 INFO L195 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] [2023-11-23 21:28:13,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 21:28:13,066 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:28:13,067 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:28:13,067 INFO L85 PathProgramCache]: Analyzing trace with hash 123591213, now seen corresponding path program 1 times [2023-11-23 21:28:13,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:28:13,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244688331] [2023-11-23 21:28:13,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:28:13,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:28:13,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:28:13,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:28:13,658 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:28:13,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244688331] [2023-11-23 21:28:13,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244688331] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:28:13,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:28:13,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:28:13,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604906412] [2023-11-23 21:28:13,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:28:13,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:28:13,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:28:13,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:28:13,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:28:13,662 INFO L87 Difference]: Start difference. First operand 16227 states and 25439 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-23 21:28:15,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:28:15,996 INFO L93 Difference]: Finished difference Result 48614 states and 76201 transitions. [2023-11-23 21:28:15,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:28:15,997 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 37 [2023-11-23 21:28:15,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:28:16,215 INFO L225 Difference]: With dead ends: 48614 [2023-11-23 21:28:16,215 INFO L226 Difference]: Without dead ends: 32388 [2023-11-23 21:28:16,520 INFO L412 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 [2023-11-23 21:28:16,521 INFO L413 NwaCegarLoop]: 1618 mSDtfsCounter, 1614 mSDsluCounter, 1472 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1614 SdHoareTripleChecker+Valid, 3090 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-23 21:28:16,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1614 Valid, 3090 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-23 21:28:16,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32388 states. [2023-11-23 21:28:18,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32388 to 32371. [2023-11-23 21:28:18,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32371 states, 21961 states have (on average 1.5167797459132097) internal successors, (33310), 22097 states have internal predecessors, (33310), 8713 states have call successors, (8713), 1697 states have call predecessors, (8713), 1696 states have return successors, (8704), 8640 states have call predecessors, (8704), 8704 states have call successors, (8704) [2023-11-23 21:28:18,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32371 states to 32371 states and 50727 transitions. [2023-11-23 21:28:18,952 INFO L78 Accepts]: Start accepts. Automaton has 32371 states and 50727 transitions. Word has length 37 [2023-11-23 21:28:18,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:28:18,953 INFO L495 AbstractCegarLoop]: Abstraction has 32371 states and 50727 transitions. [2023-11-23 21:28:18,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-23 21:28:18,953 INFO L276 IsEmpty]: Start isEmpty. Operand 32371 states and 50727 transitions. [2023-11-23 21:28:18,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-23 21:28:18,956 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:28:18,956 INFO L195 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] [2023-11-23 21:28:18,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 21:28:18,956 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:28:18,957 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:28:18,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1896798034, now seen corresponding path program 1 times [2023-11-23 21:28:18,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:28:18,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568889559] [2023-11-23 21:28:18,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:28:18,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:28:19,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:28:19,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:28:19,345 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:28:19,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568889559] [2023-11-23 21:28:19,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568889559] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:28:19,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:28:19,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:28:19,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396552002] [2023-11-23 21:28:19,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:28:19,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:28:19,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:28:19,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:28:19,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:28:19,347 INFO L87 Difference]: Start difference. First operand 32371 states and 50727 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-23 21:28:22,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:28:22,329 INFO L93 Difference]: Finished difference Result 96470 states and 151121 transitions. [2023-11-23 21:28:22,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:28:22,329 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 35 [2023-11-23 21:28:22,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:28:22,958 INFO L225 Difference]: With dead ends: 96470 [2023-11-23 21:28:22,959 INFO L226 Difference]: Without dead ends: 64100 [2023-11-23 21:28:23,125 INFO L412 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 [2023-11-23 21:28:23,126 INFO L413 NwaCegarLoop]: 1624 mSDtfsCounter, 1591 mSDsluCounter, 1469 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1591 SdHoareTripleChecker+Valid, 3093 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-23 21:28:23,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1591 Valid, 3093 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-23 21:28:23,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64100 states. [2023-11-23 21:28:26,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64100 to 64083. [2023-11-23 21:28:26,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64083 states, 43529 states have (on average 1.5169197546463278) internal successors, (66030), 43793 states have internal predecessors, (66030), 17161 states have call successors, (17161), 3393 states have call predecessors, (17161), 3392 states have return successors, (17152), 17024 states have call predecessors, (17152), 17152 states have call successors, (17152) [2023-11-23 21:28:27,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64083 states to 64083 states and 100343 transitions. [2023-11-23 21:28:27,336 INFO L78 Accepts]: Start accepts. Automaton has 64083 states and 100343 transitions. Word has length 35 [2023-11-23 21:28:27,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:28:27,337 INFO L495 AbstractCegarLoop]: Abstraction has 64083 states and 100343 transitions. [2023-11-23 21:28:27,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-23 21:28:27,338 INFO L276 IsEmpty]: Start isEmpty. Operand 64083 states and 100343 transitions. [2023-11-23 21:28:27,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-23 21:28:27,339 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:28:27,339 INFO L195 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] [2023-11-23 21:28:27,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-23 21:28:27,340 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:28:27,340 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:28:27,340 INFO L85 PathProgramCache]: Analyzing trace with hash 475470788, now seen corresponding path program 1 times [2023-11-23 21:28:27,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:28:27,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502155334] [2023-11-23 21:28:27,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:28:27,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:28:27,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:28:27,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:28:27,765 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:28:27,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502155334] [2023-11-23 21:28:27,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502155334] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:28:27,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:28:27,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:28:27,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317948242] [2023-11-23 21:28:27,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:28:27,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:28:27,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:28:27,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:28:27,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:28:27,768 INFO L87 Difference]: Start difference. First operand 64083 states and 100343 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)