./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--amc6821.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbc9c174-28f2-4bc3-8601-c26d4c010c7d/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbc9c174-28f2-4bc3-8601-c26d4c010c7d/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbc9c174-28f2-4bc3-8601-c26d4c010c7d/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbc9c174-28f2-4bc3-8601-c26d4c010c7d/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--amc6821.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbc9c174-28f2-4bc3-8601-c26d4c010c7d/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbc9c174-28f2-4bc3-8601-c26d4c010c7d/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --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 b4ab5f9a609d808b1cc730f70e246b6cee2b77e8055db2b71a14eb45eb69a8df --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 09:25:41,460 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 09:25:41,461 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 09:25:41,474 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 09:25:41,474 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 09:25:41,475 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 09:25:41,476 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 09:25:41,477 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 09:25:41,478 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 09:25:41,479 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 09:25:41,479 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 09:25:41,480 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 09:25:41,480 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 09:25:41,481 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 09:25:41,482 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 09:25:41,483 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 09:25:41,483 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 09:25:41,484 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 09:25:41,485 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 09:25:41,486 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 09:25:41,487 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 09:25:41,488 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 09:25:41,489 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 09:25:41,489 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 09:25:41,492 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 09:25:41,492 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 09:25:41,492 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 09:25:41,493 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 09:25:41,493 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 09:25:41,493 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 09:25:41,494 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 09:25:41,494 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 09:25:41,495 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 09:25:41,495 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 09:25:41,496 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 09:25:41,496 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 09:25:41,496 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 09:25:41,497 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 09:25:41,497 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 09:25:41,497 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 09:25:41,498 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 09:25:41,498 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbc9c174-28f2-4bc3-8601-c26d4c010c7d/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 09:25:41,513 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 09:25:41,514 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 09:25:41,514 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 09:25:41,514 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 09:25:41,514 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 09:25:41,515 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 09:25:41,515 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 09:25:41,515 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 09:25:41,515 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 09:25:41,515 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 09:25:41,515 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 09:25:41,515 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 09:25:41,515 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 09:25:41,516 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 09:25:41,516 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 09:25:41,516 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 09:25:41,516 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 09:25:41,516 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 09:25:41,517 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 09:25:41,517 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 09:25:41,517 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 09:25:41,517 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 09:25:41,517 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 09:25:41,517 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 09:25:41,517 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 09:25:41,517 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 09:25:41,518 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 09:25:41,518 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 09:25:41,518 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 09:25:41,518 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:25:41,518 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 09:25:41,518 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 09:25:41,518 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 09:25:41,518 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 09:25:41,518 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 09:25:41,519 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 09:25:41,519 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 09:25:41,519 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 09:25:41,519 INFO L138 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_cbc9c174-28f2-4bc3-8601-c26d4c010c7d/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbc9c174-28f2-4bc3-8601-c26d4c010c7d/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b4ab5f9a609d808b1cc730f70e246b6cee2b77e8055db2b71a14eb45eb69a8df [2022-12-14 09:25:41,690 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 09:25:41,707 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 09:25:41,709 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 09:25:41,710 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 09:25:41,710 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 09:25:41,711 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbc9c174-28f2-4bc3-8601-c26d4c010c7d/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--amc6821.ko-main.cil.out.i [2022-12-14 09:25:44,367 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 09:25:44,660 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 09:25:44,660 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbc9c174-28f2-4bc3-8601-c26d4c010c7d/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--amc6821.ko-main.cil.out.i [2022-12-14 09:25:44,676 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbc9c174-28f2-4bc3-8601-c26d4c010c7d/bin/utaipan-gh47qXpMRh/data/2a13868f4/33b66300532e41c2b3f198f152beb2d6/FLAGf7f031011 [2022-12-14 09:25:44,686 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbc9c174-28f2-4bc3-8601-c26d4c010c7d/bin/utaipan-gh47qXpMRh/data/2a13868f4/33b66300532e41c2b3f198f152beb2d6 [2022-12-14 09:25:44,688 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 09:25:44,689 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 09:25:44,690 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 09:25:44,690 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 09:25:44,692 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 09:25:44,693 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:25:44" (1/1) ... [2022-12-14 09:25:44,693 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b7e2873 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:25:44, skipping insertion in model container [2022-12-14 09:25:44,694 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:25:44" (1/1) ... [2022-12-14 09:25:44,699 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 09:25:44,751 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 09:25:44,970 WARN L623 FunctionHandler]: Unknown extern function kstrtoll [2022-12-14 09:25:45,099 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-12-14 09:25:45,103 WARN L623 FunctionHandler]: Unknown extern function dev_set_drvdata [2022-12-14 09:25:45,151 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 09:25:45,156 WARN L623 FunctionHandler]: Unknown extern function i2c_smbus_write_byte_data [2022-12-14 09:25:45,158 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 09:25:45,165 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 09:25:45,166 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 09:25:45,166 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 09:25:45,170 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 09:25:45,170 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 09:25:45,174 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 09:25:45,178 WARN L623 FunctionHandler]: Unknown extern function i2c_smbus_write_byte_data [2022-12-14 09:25:45,181 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 09:25:45,185 WARN L623 FunctionHandler]: Unknown extern function i2c_smbus_read_byte_data [2022-12-14 09:25:45,186 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 09:25:45,188 WARN L623 FunctionHandler]: Unknown extern function i2c_smbus_write_byte_data [2022-12-14 09:25:45,189 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 09:25:45,192 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 09:25:45,196 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 09:25:45,197 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 09:25:45,199 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 09:25:45,202 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 09:25:45,207 WARN L623 FunctionHandler]: Unknown extern function i2c_smbus_write_byte_data [2022-12-14 09:25:45,208 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 09:25:45,214 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 09:25:45,215 WARN L623 FunctionHandler]: Unknown extern function i2c_smbus_write_byte_data [2022-12-14 09:25:45,216 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 09:25:45,219 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 09:25:45,224 WARN L623 FunctionHandler]: Unknown extern function i2c_smbus_write_byte_data [2022-12-14 09:25:45,225 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 09:25:45,230 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 09:25:45,230 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 09:25:45,234 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 09:25:45,234 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 09:25:45,239 WARN L623 FunctionHandler]: Unknown extern function i2c_smbus_write_byte_data [2022-12-14 09:25:45,239 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 09:25:45,240 WARN L623 FunctionHandler]: Unknown extern function i2c_smbus_write_byte_data [2022-12-14 09:25:45,240 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 09:25:45,243 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 09:25:45,247 WARN L623 FunctionHandler]: Unknown extern function i2c_smbus_read_byte_data [2022-12-14 09:25:45,248 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 09:25:45,249 WARN L623 FunctionHandler]: Unknown extern function i2c_smbus_write_byte_data [2022-12-14 09:25:45,249 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 09:25:45,267 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 09:25:45,268 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 09:25:45,269 WARN L623 FunctionHandler]: Unknown extern function i2c_smbus_read_byte_data [2022-12-14 09:25:45,269 WARN L623 FunctionHandler]: Unknown extern function i2c_smbus_read_byte_data [2022-12-14 09:25:45,271 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 09:25:45,271 WARN L623 FunctionHandler]: Unknown extern function i2c_smbus_read_byte_data [2022-12-14 09:25:45,271 WARN L623 FunctionHandler]: Unknown extern function i2c_smbus_read_byte_data [2022-12-14 09:25:45,273 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 09:25:45,273 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 09:25:45,274 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 09:25:45,275 WARN L623 FunctionHandler]: Unknown extern function devm_kzalloc [2022-12-14 09:25:45,275 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-14 09:25:45,276 WARN L623 FunctionHandler]: Unknown extern function sysfs_create_group [2022-12-14 09:25:45,276 WARN L623 FunctionHandler]: Unknown extern function hwmon_device_register [2022-12-14 09:25:45,277 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 09:25:45,277 WARN L623 FunctionHandler]: Unknown extern function sysfs_remove_group [2022-12-14 09:25:45,278 WARN L623 FunctionHandler]: Unknown extern function hwmon_device_unregister [2022-12-14 09:25:45,278 WARN L623 FunctionHandler]: Unknown extern function sysfs_remove_group [2022-12-14 09:25:45,278 WARN L623 FunctionHandler]: Unknown extern function i2c_smbus_read_byte_data [2022-12-14 09:25:45,279 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 09:25:45,279 WARN L623 FunctionHandler]: Unknown extern function i2c_smbus_write_byte_data [2022-12-14 09:25:45,280 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 09:25:45,280 WARN L623 FunctionHandler]: Unknown extern function i2c_smbus_read_byte_data [2022-12-14 09:25:45,280 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 09:25:45,281 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 09:25:45,281 WARN L623 FunctionHandler]: Unknown extern function i2c_smbus_write_byte_data [2022-12-14 09:25:45,281 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 09:25:45,282 WARN L623 FunctionHandler]: Unknown extern function i2c_smbus_read_byte_data [2022-12-14 09:25:45,282 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 09:25:45,283 WARN L623 FunctionHandler]: Unknown extern function i2c_smbus_write_byte_data [2022-12-14 09:25:45,283 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 09:25:45,284 WARN L623 FunctionHandler]: Unknown extern function i2c_smbus_read_byte_data [2022-12-14 09:25:45,284 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 09:25:45,285 WARN L623 FunctionHandler]: Unknown extern function i2c_smbus_write_byte_data [2022-12-14 09:25:45,285 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 09:25:45,287 WARN L623 FunctionHandler]: Unknown extern function i2c_smbus_read_byte_data [2022-12-14 09:25:45,288 WARN L623 FunctionHandler]: Unknown extern function i2c_smbus_read_byte_data [2022-12-14 09:25:45,288 WARN L623 FunctionHandler]: Unknown extern function i2c_smbus_read_byte_data [2022-12-14 09:25:45,288 WARN L623 FunctionHandler]: Unknown extern function i2c_smbus_read_byte_data [2022-12-14 09:25:45,289 WARN L623 FunctionHandler]: Unknown extern function i2c_smbus_read_byte_data [2022-12-14 09:25:45,289 WARN L623 FunctionHandler]: Unknown extern function i2c_smbus_read_byte_data [2022-12-14 09:25:45,290 WARN L623 FunctionHandler]: Unknown extern function i2c_smbus_read_byte_data [2022-12-14 09:25:45,290 WARN L623 FunctionHandler]: Unknown extern function i2c_smbus_read_byte_data [2022-12-14 09:25:45,291 WARN L623 FunctionHandler]: Unknown extern function i2c_smbus_read_byte_data [2022-12-14 09:25:45,291 WARN L623 FunctionHandler]: Unknown extern function i2c_smbus_read_byte_data [2022-12-14 09:25:45,293 WARN L623 FunctionHandler]: Unknown extern function i2c_smbus_read_byte_data [2022-12-14 09:25:45,294 WARN L623 FunctionHandler]: Unknown extern function i2c_smbus_read_byte_data [2022-12-14 09:25:45,298 WARN L623 FunctionHandler]: Unknown extern function i2c_register_driver [2022-12-14 09:25:45,300 WARN L623 FunctionHandler]: Unknown extern function i2c_del_driver [2022-12-14 09:25:45,327 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 09:25:45,328 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 09:25:45,328 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 09:25:45,328 WARN L623 FunctionHandler]: Unknown extern function mutex_trylock [2022-12-14 09:25:45,329 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 09:25:45,329 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 09:25:45,330 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 09:25:45,330 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 09:25:45,330 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 09:25:45,331 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 09:25:45,331 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 09:25:45,331 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 09:25:45,331 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 09:25:45,332 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 09:25:45,332 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 09:25:45,332 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 09:25:45,332 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 09:25:45,333 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 09:25:45,333 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 09:25:45,333 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 09:25:45,333 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 09:25:45,334 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 09:25:45,334 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 09:25:45,337 WARN L237 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_cbc9c174-28f2-4bc3-8601-c26d4c010c7d/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--amc6821.ko-main.cil.out.i[139464,139477] [2022-12-14 09:25:45,411 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:25:45,449 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 09:25:45,498 WARN L623 FunctionHandler]: Unknown extern function kstrtoll [2022-12-14 09:25:45,500 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-12-14 09:25:45,501 WARN L623 FunctionHandler]: Unknown extern function dev_set_drvdata [2022-12-14 09:25:45,508 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 09:25:45,510 WARN L623 FunctionHandler]: Unknown extern function i2c_smbus_write_byte_data [2022-12-14 09:25:45,511 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 09:25:45,514 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 09:25:45,515 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 09:25:45,515 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 09:25:45,516 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 09:25:45,517 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 09:25:45,517 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 09:25:45,518 WARN L623 FunctionHandler]: Unknown extern function i2c_smbus_write_byte_data [2022-12-14 09:25:45,519 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 09:25:45,520 WARN L623 FunctionHandler]: Unknown extern function i2c_smbus_read_byte_data [2022-12-14 09:25:45,520 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 09:25:45,521 WARN L623 FunctionHandler]: Unknown extern function i2c_smbus_write_byte_data [2022-12-14 09:25:45,521 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 09:25:45,522 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 09:25:45,523 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 09:25:45,523 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 09:25:45,525 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 09:25:45,526 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 09:25:45,527 WARN L623 FunctionHandler]: Unknown extern function i2c_smbus_write_byte_data [2022-12-14 09:25:45,527 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 09:25:45,531 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 09:25:45,532 WARN L623 FunctionHandler]: Unknown extern function i2c_smbus_write_byte_data [2022-12-14 09:25:45,533 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 09:25:45,536 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 09:25:45,538 WARN L623 FunctionHandler]: Unknown extern function i2c_smbus_write_byte_data [2022-12-14 09:25:45,539 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 09:25:45,540 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 09:25:45,541 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 09:25:45,542 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 09:25:45,542 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 09:25:45,543 WARN L623 FunctionHandler]: Unknown extern function i2c_smbus_write_byte_data [2022-12-14 09:25:45,544 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 09:25:45,545 WARN L623 FunctionHandler]: Unknown extern function i2c_smbus_write_byte_data [2022-12-14 09:25:45,545 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 09:25:45,546 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 09:25:45,548 WARN L623 FunctionHandler]: Unknown extern function i2c_smbus_read_byte_data [2022-12-14 09:25:45,548 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 09:25:45,549 WARN L623 FunctionHandler]: Unknown extern function i2c_smbus_write_byte_data [2022-12-14 09:25:45,549 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 09:25:45,573 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 09:25:45,575 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 09:25:45,576 WARN L623 FunctionHandler]: Unknown extern function i2c_smbus_read_byte_data [2022-12-14 09:25:45,576 WARN L623 FunctionHandler]: Unknown extern function i2c_smbus_read_byte_data [2022-12-14 09:25:45,577 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 09:25:45,578 WARN L623 FunctionHandler]: Unknown extern function i2c_smbus_read_byte_data [2022-12-14 09:25:45,578 WARN L623 FunctionHandler]: Unknown extern function i2c_smbus_read_byte_data [2022-12-14 09:25:45,579 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 09:25:45,580 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 09:25:45,580 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 09:25:45,581 WARN L623 FunctionHandler]: Unknown extern function devm_kzalloc [2022-12-14 09:25:45,582 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-14 09:25:45,582 WARN L623 FunctionHandler]: Unknown extern function sysfs_create_group [2022-12-14 09:25:45,582 WARN L623 FunctionHandler]: Unknown extern function hwmon_device_register [2022-12-14 09:25:45,583 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 09:25:45,583 WARN L623 FunctionHandler]: Unknown extern function sysfs_remove_group [2022-12-14 09:25:45,583 WARN L623 FunctionHandler]: Unknown extern function hwmon_device_unregister [2022-12-14 09:25:45,584 WARN L623 FunctionHandler]: Unknown extern function sysfs_remove_group [2022-12-14 09:25:45,584 WARN L623 FunctionHandler]: Unknown extern function i2c_smbus_read_byte_data [2022-12-14 09:25:45,584 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 09:25:45,585 WARN L623 FunctionHandler]: Unknown extern function i2c_smbus_write_byte_data [2022-12-14 09:25:45,585 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 09:25:45,585 WARN L623 FunctionHandler]: Unknown extern function i2c_smbus_read_byte_data [2022-12-14 09:25:45,585 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 09:25:45,586 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 09:25:45,586 WARN L623 FunctionHandler]: Unknown extern function i2c_smbus_write_byte_data [2022-12-14 09:25:45,586 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 09:25:45,587 WARN L623 FunctionHandler]: Unknown extern function i2c_smbus_read_byte_data [2022-12-14 09:25:45,587 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 09:25:45,587 WARN L623 FunctionHandler]: Unknown extern function i2c_smbus_write_byte_data [2022-12-14 09:25:45,588 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 09:25:45,588 WARN L623 FunctionHandler]: Unknown extern function i2c_smbus_read_byte_data [2022-12-14 09:25:45,588 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 09:25:45,589 WARN L623 FunctionHandler]: Unknown extern function i2c_smbus_write_byte_data [2022-12-14 09:25:45,590 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 09:25:45,591 WARN L623 FunctionHandler]: Unknown extern function i2c_smbus_read_byte_data [2022-12-14 09:25:45,591 WARN L623 FunctionHandler]: Unknown extern function i2c_smbus_read_byte_data [2022-12-14 09:25:45,592 WARN L623 FunctionHandler]: Unknown extern function i2c_smbus_read_byte_data [2022-12-14 09:25:45,592 WARN L623 FunctionHandler]: Unknown extern function i2c_smbus_read_byte_data [2022-12-14 09:25:45,592 WARN L623 FunctionHandler]: Unknown extern function i2c_smbus_read_byte_data [2022-12-14 09:25:45,592 WARN L623 FunctionHandler]: Unknown extern function i2c_smbus_read_byte_data [2022-12-14 09:25:45,593 WARN L623 FunctionHandler]: Unknown extern function i2c_smbus_read_byte_data [2022-12-14 09:25:45,594 WARN L623 FunctionHandler]: Unknown extern function i2c_smbus_read_byte_data [2022-12-14 09:25:45,594 WARN L623 FunctionHandler]: Unknown extern function i2c_smbus_read_byte_data [2022-12-14 09:25:45,594 WARN L623 FunctionHandler]: Unknown extern function i2c_smbus_read_byte_data [2022-12-14 09:25:45,595 WARN L623 FunctionHandler]: Unknown extern function i2c_smbus_read_byte_data [2022-12-14 09:25:45,596 WARN L623 FunctionHandler]: Unknown extern function i2c_smbus_read_byte_data [2022-12-14 09:25:45,597 WARN L623 FunctionHandler]: Unknown extern function i2c_register_driver [2022-12-14 09:25:45,598 WARN L623 FunctionHandler]: Unknown extern function i2c_del_driver [2022-12-14 09:25:45,611 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 09:25:45,611 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 09:25:45,611 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 09:25:45,611 WARN L623 FunctionHandler]: Unknown extern function mutex_trylock [2022-12-14 09:25:45,612 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 09:25:45,612 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 09:25:45,612 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 09:25:45,612 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 09:25:45,613 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 09:25:45,613 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 09:25:45,613 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 09:25:45,613 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 09:25:45,614 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 09:25:45,614 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 09:25:45,614 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 09:25:45,614 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 09:25:45,615 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 09:25:45,615 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 09:25:45,615 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 09:25:45,615 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 09:25:45,615 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 09:25:45,616 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 09:25:45,616 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 09:25:45,616 WARN L237 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_cbc9c174-28f2-4bc3-8601-c26d4c010c7d/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--amc6821.ko-main.cil.out.i[139464,139477] [2022-12-14 09:25:45,624 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:25:45,682 INFO L208 MainTranslator]: Completed translation [2022-12-14 09:25:45,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:25:45 WrapperNode [2022-12-14 09:25:45,683 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 09:25:45,683 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 09:25:45,683 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 09:25:45,684 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 09:25:45,700 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:25:45" (1/1) ... [2022-12-14 09:25:45,738 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:25:45" (1/1) ... [2022-12-14 09:25:45,820 INFO L138 Inliner]: procedures = 138, calls = 1444, calls flagged for inlining = 60, calls inlined = 52, statements flattened = 3765 [2022-12-14 09:25:45,820 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 09:25:45,821 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 09:25:45,821 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 09:25:45,821 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 09:25:45,831 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:25:45" (1/1) ... [2022-12-14 09:25:45,831 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:25:45" (1/1) ... [2022-12-14 09:25:45,847 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:25:45" (1/1) ... [2022-12-14 09:25:45,847 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:25:45" (1/1) ... [2022-12-14 09:25:45,889 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:25:45" (1/1) ... [2022-12-14 09:25:45,897 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:25:45" (1/1) ... [2022-12-14 09:25:45,906 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:25:45" (1/1) ... [2022-12-14 09:25:45,913 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:25:45" (1/1) ... [2022-12-14 09:25:45,924 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 09:25:45,924 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 09:25:45,925 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 09:25:45,925 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 09:25:45,925 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:25:45" (1/1) ... [2022-12-14 09:25:45,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:25:45,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbc9c174-28f2-4bc3-8601-c26d4c010c7d/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:25:45,948 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbc9c174-28f2-4bc3-8601-c26d4c010c7d/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 09:25:45,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbc9c174-28f2-4bc3-8601-c26d4c010c7d/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 09:25:45,977 INFO L130 BoogieDeclarations]: Found specification of procedure get_pwm1_auto_point_pwm [2022-12-14 09:25:45,978 INFO L138 BoogieDeclarations]: Found implementation of procedure get_pwm1_auto_point_pwm [2022-12-14 09:25:45,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 09:25:45,978 INFO L130 BoogieDeclarations]: Found specification of procedure get_fan [2022-12-14 09:25:45,978 INFO L138 BoogieDeclarations]: Found implementation of procedure get_fan [2022-12-14 09:25:45,978 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2022-12-14 09:25:45,978 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2022-12-14 09:25:45,978 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_get_clientdata [2022-12-14 09:25:45,978 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_get_clientdata [2022-12-14 09:25:45,978 INFO L130 BoogieDeclarations]: Found specification of procedure amc6821_detect [2022-12-14 09:25:45,978 INFO L138 BoogieDeclarations]: Found implementation of procedure amc6821_detect [2022-12-14 09:25:45,978 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-14 09:25:45,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-14 09:25:45,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 09:25:45,978 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-12-14 09:25:45,978 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-12-14 09:25:45,978 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-12-14 09:25:45,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-12-14 09:25:45,979 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-12-14 09:25:45,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-12-14 09:25:45,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 09:25:45,979 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_update_lock_of_amc6821_data [2022-12-14 09:25:45,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_update_lock_of_amc6821_data [2022-12-14 09:25:45,979 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-12-14 09:25:45,979 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-12-14 09:25:45,979 INFO L130 BoogieDeclarations]: Found specification of procedure get_temp_auto_point_temp [2022-12-14 09:25:45,979 INFO L138 BoogieDeclarations]: Found implementation of procedure get_temp_auto_point_temp [2022-12-14 09:25:45,979 INFO L130 BoogieDeclarations]: Found specification of procedure set_slope_register [2022-12-14 09:25:45,979 INFO L138 BoogieDeclarations]: Found implementation of procedure set_slope_register [2022-12-14 09:25:45,979 INFO L130 BoogieDeclarations]: Found specification of procedure get_temp_alarm [2022-12-14 09:25:45,979 INFO L138 BoogieDeclarations]: Found implementation of procedure get_temp_alarm [2022-12-14 09:25:45,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 09:25:45,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 09:25:45,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 09:25:45,980 INFO L130 BoogieDeclarations]: Found specification of procedure SENSORS_LIMIT [2022-12-14 09:25:45,980 INFO L138 BoogieDeclarations]: Found implementation of procedure SENSORS_LIMIT [2022-12-14 09:25:45,980 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_read_byte_data [2022-12-14 09:25:45,980 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_read_byte_data [2022-12-14 09:25:45,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 09:25:45,980 INFO L130 BoogieDeclarations]: Found specification of procedure amc6821_update_device [2022-12-14 09:25:45,980 INFO L138 BoogieDeclarations]: Found implementation of procedure amc6821_update_device [2022-12-14 09:25:45,980 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtol [2022-12-14 09:25:45,980 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtol [2022-12-14 09:25:45,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 09:25:45,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 09:25:45,981 INFO L130 BoogieDeclarations]: Found specification of procedure get_temp [2022-12-14 09:25:45,981 INFO L138 BoogieDeclarations]: Found implementation of procedure get_temp [2022-12-14 09:25:45,981 INFO L130 BoogieDeclarations]: Found specification of procedure set_temp [2022-12-14 09:25:45,981 INFO L138 BoogieDeclarations]: Found implementation of procedure set_temp [2022-12-14 09:25:45,981 INFO L130 BoogieDeclarations]: Found specification of procedure set_fan [2022-12-14 09:25:45,981 INFO L138 BoogieDeclarations]: Found implementation of procedure set_fan [2022-12-14 09:25:45,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 09:25:45,981 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_write_byte_data [2022-12-14 09:25:45,981 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_write_byte_data [2022-12-14 09:25:45,981 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_update_lock_of_amc6821_data [2022-12-14 09:25:45,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_update_lock_of_amc6821_data [2022-12-14 09:25:45,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 09:25:45,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 09:25:45,982 INFO L130 BoogieDeclarations]: Found specification of procedure set_temp_auto_point_temp [2022-12-14 09:25:45,982 INFO L138 BoogieDeclarations]: Found implementation of procedure set_temp_auto_point_temp [2022-12-14 09:25:45,982 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-12-14 09:25:45,982 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-12-14 09:25:46,344 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 09:25:46,346 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 09:25:48,604 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 09:25:49,283 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 09:25:49,283 INFO L300 CfgBuilder]: Removed 11 assume(true) statements. [2022-12-14 09:25:49,285 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:25:49 BoogieIcfgContainer [2022-12-14 09:25:49,286 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 09:25:49,287 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 09:25:49,287 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 09:25:49,289 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 09:25:49,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 09:25:44" (1/3) ... [2022-12-14 09:25:49,290 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6479d6b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:25:49, skipping insertion in model container [2022-12-14 09:25:49,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:25:45" (2/3) ... [2022-12-14 09:25:49,290 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6479d6b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:25:49, skipping insertion in model container [2022-12-14 09:25:49,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:25:49" (3/3) ... [2022-12-14 09:25:49,291 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--hwmon--amc6821.ko-main.cil.out.i [2022-12-14 09:25:49,306 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 09:25:49,306 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 09:25:49,352 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 09:25:49,357 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=LoopsAndPotentialCycles, 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;@5cfcc6bf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 09:25:49,357 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 09:25:49,363 INFO L276 IsEmpty]: Start isEmpty. Operand has 642 states, 445 states have (on average 1.5460674157303371) internal successors, (688), 452 states have internal predecessors, (688), 170 states have call successors, (170), 25 states have call predecessors, (170), 25 states have return successors, (170), 170 states have call predecessors, (170), 170 states have call successors, (170) [2022-12-14 09:25:49,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-12-14 09:25:49,371 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:25:49,372 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] [2022-12-14 09:25:49,372 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:25:49,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:25:49,376 INFO L85 PathProgramCache]: Analyzing trace with hash -686863281, now seen corresponding path program 1 times [2022-12-14 09:25:49,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:25:49,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005884016] [2022-12-14 09:25:49,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:25:49,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:25:49,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:25:49,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:25:49,811 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:25:49,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005884016] [2022-12-14 09:25:49,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005884016] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:25:49,812 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:25:49,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:25:49,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798632477] [2022-12-14 09:25:49,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:25:49,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:25:49,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:25:49,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:25:49,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:25:49,843 INFO L87 Difference]: Start difference. First operand has 642 states, 445 states have (on average 1.5460674157303371) internal successors, (688), 452 states have internal predecessors, (688), 170 states have call successors, (170), 25 states have call predecessors, (170), 25 states have return successors, (170), 170 states have call predecessors, (170), 170 states have call successors, (170) Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:25:50,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:25:50,553 INFO L93 Difference]: Finished difference Result 1917 states and 3206 transitions. [2022-12-14 09:25:50,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:25:50,555 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 26 [2022-12-14 09:25:50,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:25:50,568 INFO L225 Difference]: With dead ends: 1917 [2022-12-14 09:25:50,568 INFO L226 Difference]: Without dead ends: 1272 [2022-12-14 09:25:50,576 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 [2022-12-14 09:25:50,578 INFO L413 NwaCegarLoop]: 1072 mSDtfsCounter, 1004 mSDsluCounter, 906 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1004 SdHoareTripleChecker+Valid, 1978 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-14 09:25:50,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1004 Valid, 1978 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-14 09:25:50,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1272 states. [2022-12-14 09:25:50,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1272 to 1259. [2022-12-14 09:25:50,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1259 states, 877 states have (on average 1.541619156214367) internal successors, (1352), 882 states have internal predecessors, (1352), 333 states have call successors, (333), 49 states have call predecessors, (333), 48 states have return successors, (327), 327 states have call predecessors, (327), 327 states have call successors, (327) [2022-12-14 09:25:50,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1259 states to 1259 states and 2012 transitions. [2022-12-14 09:25:50,705 INFO L78 Accepts]: Start accepts. Automaton has 1259 states and 2012 transitions. Word has length 26 [2022-12-14 09:25:50,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:25:50,706 INFO L495 AbstractCegarLoop]: Abstraction has 1259 states and 2012 transitions. [2022-12-14 09:25:50,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:25:50,706 INFO L276 IsEmpty]: Start isEmpty. Operand 1259 states and 2012 transitions. [2022-12-14 09:25:50,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-12-14 09:25:50,709 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:25:50,709 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] [2022-12-14 09:25:50,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 09:25:50,709 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:25:50,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:25:50,710 INFO L85 PathProgramCache]: Analyzing trace with hash 801726678, now seen corresponding path program 1 times [2022-12-14 09:25:50,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:25:50,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245142360] [2022-12-14 09:25:50,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:25:50,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:25:50,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:25:50,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:25:50,952 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:25:50,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245142360] [2022-12-14 09:25:50,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245142360] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:25:50,953 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:25:50,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:25:50,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179052219] [2022-12-14 09:25:50,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:25:50,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:25:50,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:25:50,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:25:50,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:25:50,955 INFO L87 Difference]: Start difference. First operand 1259 states and 2012 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:25:51,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:25:51,579 INFO L93 Difference]: Finished difference Result 3766 states and 6018 transitions. [2022-12-14 09:25:51,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:25:51,580 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 26 [2022-12-14 09:25:51,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:25:51,589 INFO L225 Difference]: With dead ends: 3766 [2022-12-14 09:25:51,589 INFO L226 Difference]: Without dead ends: 2508 [2022-12-14 09:25:51,594 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 [2022-12-14 09:25:51,594 INFO L413 NwaCegarLoop]: 1076 mSDtfsCounter, 1004 mSDsluCounter, 904 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1004 SdHoareTripleChecker+Valid, 1980 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-14 09:25:51,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1004 Valid, 1980 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-14 09:25:51,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2508 states. [2022-12-14 09:25:51,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2508 to 2495. [2022-12-14 09:25:51,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2495 states, 1740 states have (on average 1.5402298850574712) internal successors, (2680), 1745 states have internal predecessors, (2680), 658 states have call successors, (658), 97 states have call predecessors, (658), 96 states have return successors, (652), 652 states have call predecessors, (652), 652 states have call successors, (652) [2022-12-14 09:25:51,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2495 states to 2495 states and 3990 transitions. [2022-12-14 09:25:51,702 INFO L78 Accepts]: Start accepts. Automaton has 2495 states and 3990 transitions. Word has length 26 [2022-12-14 09:25:51,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:25:51,702 INFO L495 AbstractCegarLoop]: Abstraction has 2495 states and 3990 transitions. [2022-12-14 09:25:51,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:25:51,703 INFO L276 IsEmpty]: Start isEmpty. Operand 2495 states and 3990 transitions. [2022-12-14 09:25:51,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-12-14 09:25:51,704 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:25:51,705 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] [2022-12-14 09:25:51,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 09:25:51,705 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:25:51,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:25:51,706 INFO L85 PathProgramCache]: Analyzing trace with hash -947538575, now seen corresponding path program 1 times [2022-12-14 09:25:51,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:25:51,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964017134] [2022-12-14 09:25:51,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:25:51,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:25:51,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:25:52,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:25:52,000 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:25:52,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964017134] [2022-12-14 09:25:52,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964017134] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:25:52,001 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:25:52,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:25:52,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501581944] [2022-12-14 09:25:52,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:25:52,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:25:52,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:25:52,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:25:52,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:25:52,003 INFO L87 Difference]: Start difference. First operand 2495 states and 3990 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, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:25:52,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:25:52,809 INFO L93 Difference]: Finished difference Result 7466 states and 11938 transitions. [2022-12-14 09:25:52,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:25:52,809 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, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 29 [2022-12-14 09:25:52,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:25:52,825 INFO L225 Difference]: With dead ends: 7466 [2022-12-14 09:25:52,826 INFO L226 Difference]: Without dead ends: 4972 [2022-12-14 09:25:52,832 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 [2022-12-14 09:25:52,833 INFO L413 NwaCegarLoop]: 1082 mSDtfsCounter, 1001 mSDsluCounter, 904 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1001 SdHoareTripleChecker+Valid, 1986 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-14 09:25:52,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1001 Valid, 1986 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-14 09:25:52,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4972 states. [2022-12-14 09:25:52,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4972 to 4959. [2022-12-14 09:25:52,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4959 states, 3460 states have (on average 1.538728323699422) internal successors, (5324), 3465 states have internal predecessors, (5324), 1306 states have call successors, (1306), 193 states have call predecessors, (1306), 192 states have return successors, (1300), 1300 states have call predecessors, (1300), 1300 states have call successors, (1300) [2022-12-14 09:25:52,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4959 states to 4959 states and 7930 transitions. [2022-12-14 09:25:52,988 INFO L78 Accepts]: Start accepts. Automaton has 4959 states and 7930 transitions. Word has length 29 [2022-12-14 09:25:52,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:25:52,989 INFO L495 AbstractCegarLoop]: Abstraction has 4959 states and 7930 transitions. [2022-12-14 09:25:52,989 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, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:25:52,989 INFO L276 IsEmpty]: Start isEmpty. Operand 4959 states and 7930 transitions. [2022-12-14 09:25:52,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 09:25:52,990 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:25:52,990 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] [2022-12-14 09:25:52,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 09:25:52,990 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:25:52,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:25:52,990 INFO L85 PathProgramCache]: Analyzing trace with hash 390573379, now seen corresponding path program 1 times [2022-12-14 09:25:52,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:25:52,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661558177] [2022-12-14 09:25:52,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:25:52,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:25:53,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:25:53,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:25:53,146 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:25:53,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661558177] [2022-12-14 09:25:53,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661558177] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:25:53,147 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:25:53,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:25:53,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173525084] [2022-12-14 09:25:53,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:25:53,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:25:53,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:25:53,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:25:53,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:25:53,148 INFO L87 Difference]: Start difference. First operand 4959 states and 7930 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:25:53,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:25:53,916 INFO L93 Difference]: Finished difference Result 14810 states and 23674 transitions. [2022-12-14 09:25:53,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:25:53,917 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 31 [2022-12-14 09:25:53,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:25:53,962 INFO L225 Difference]: With dead ends: 14810 [2022-12-14 09:25:53,962 INFO L226 Difference]: Without dead ends: 9852 [2022-12-14 09:25:53,979 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 [2022-12-14 09:25:53,980 INFO L413 NwaCegarLoop]: 1087 mSDtfsCounter, 992 mSDsluCounter, 901 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 992 SdHoareTripleChecker+Valid, 1988 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-14 09:25:53,980 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [992 Valid, 1988 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-14 09:25:53,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9852 states. [2022-12-14 09:25:54,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9852 to 9839. [2022-12-14 09:25:54,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9839 states, 6864 states have (on average 1.5367132867132867) internal successors, (10548), 6869 states have internal predecessors, (10548), 2590 states have call successors, (2590), 385 states have call predecessors, (2590), 384 states have return successors, (2584), 2584 states have call predecessors, (2584), 2584 states have call successors, (2584) [2022-12-14 09:25:54,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9839 states to 9839 states and 15722 transitions. [2022-12-14 09:25:54,393 INFO L78 Accepts]: Start accepts. Automaton has 9839 states and 15722 transitions. Word has length 31 [2022-12-14 09:25:54,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:25:54,394 INFO L495 AbstractCegarLoop]: Abstraction has 9839 states and 15722 transitions. [2022-12-14 09:25:54,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:25:54,394 INFO L276 IsEmpty]: Start isEmpty. Operand 9839 states and 15722 transitions. [2022-12-14 09:25:54,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-12-14 09:25:54,395 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:25:54,395 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] [2022-12-14 09:25:54,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 09:25:54,395 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:25:54,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:25:54,396 INFO L85 PathProgramCache]: Analyzing trace with hash -1019238027, now seen corresponding path program 1 times [2022-12-14 09:25:54,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:25:54,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448570188] [2022-12-14 09:25:54,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:25:54,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:25:54,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:25:54,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:25:54,591 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:25:54,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448570188] [2022-12-14 09:25:54,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448570188] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:25:54,591 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:25:54,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:25:54,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005425718] [2022-12-14 09:25:54,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:25:54,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:25:54,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:25:54,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:25:54,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:25:54,593 INFO L87 Difference]: Start difference. First operand 9839 states and 15722 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, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:25:55,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:25:55,584 INFO L93 Difference]: Finished difference Result 29450 states and 47050 transitions. [2022-12-14 09:25:55,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:25:55,584 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, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 30 [2022-12-14 09:25:55,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:25:55,676 INFO L225 Difference]: With dead ends: 29450 [2022-12-14 09:25:55,676 INFO L226 Difference]: Without dead ends: 19612 [2022-12-14 09:25:55,705 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 [2022-12-14 09:25:55,705 INFO L413 NwaCegarLoop]: 1100 mSDtfsCounter, 1000 mSDsluCounter, 904 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1000 SdHoareTripleChecker+Valid, 2004 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-14 09:25:55,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1000 Valid, 2004 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-14 09:25:55,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19612 states. [2022-12-14 09:25:56,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19612 to 19599. [2022-12-14 09:25:56,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19599 states, 13672 states have (on average 1.5351082504388531) internal successors, (20988), 13677 states have internal predecessors, (20988), 5158 states have call successors, (5158), 769 states have call predecessors, (5158), 768 states have return successors, (5152), 5152 states have call predecessors, (5152), 5152 states have call successors, (5152) [2022-12-14 09:25:56,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19599 states to 19599 states and 31298 transitions. [2022-12-14 09:25:56,363 INFO L78 Accepts]: Start accepts. Automaton has 19599 states and 31298 transitions. Word has length 30 [2022-12-14 09:25:56,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:25:56,364 INFO L495 AbstractCegarLoop]: Abstraction has 19599 states and 31298 transitions. [2022-12-14 09:25:56,364 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, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:25:56,364 INFO L276 IsEmpty]: Start isEmpty. Operand 19599 states and 31298 transitions. [2022-12-14 09:25:56,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-12-14 09:25:56,365 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:25:56,365 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] [2022-12-14 09:25:56,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 09:25:56,365 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:25:56,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:25:56,366 INFO L85 PathProgramCache]: Analyzing trace with hash 1738482620, now seen corresponding path program 1 times [2022-12-14 09:25:56,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:25:56,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546970382] [2022-12-14 09:25:56,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:25:56,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:25:56,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:25:56,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:25:56,573 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:25:56,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546970382] [2022-12-14 09:25:56,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546970382] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:25:56,573 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:25:56,574 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:25:56,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394396700] [2022-12-14 09:25:56,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:25:56,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:25:56,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:25:56,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:25:56,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:25:56,575 INFO L87 Difference]: Start difference. First operand 19599 states and 31298 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:25:57,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:25:57,825 INFO L93 Difference]: Finished difference Result 58666 states and 93666 transitions. [2022-12-14 09:25:57,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:25:57,825 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 25 [2022-12-14 09:25:57,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:25:57,935 INFO L225 Difference]: With dead ends: 58666 [2022-12-14 09:25:57,935 INFO L226 Difference]: Without dead ends: 39068 [2022-12-14 09:25:57,983 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 [2022-12-14 09:25:57,984 INFO L413 NwaCegarLoop]: 1106 mSDtfsCounter, 1003 mSDsluCounter, 905 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1003 SdHoareTripleChecker+Valid, 2011 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 09:25:57,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1003 Valid, 2011 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 09:25:58,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39068 states. [2022-12-14 09:25:59,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39068 to 39055. [2022-12-14 09:25:59,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39055 states, 27240 states have (on average 1.5334801762114538) internal successors, (41772), 27245 states have internal predecessors, (41772), 10278 states have call successors, (10278), 1537 states have call predecessors, (10278), 1536 states have return successors, (10272), 10272 states have call predecessors, (10272), 10272 states have call successors, (10272) [2022-12-14 09:25:59,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39055 states to 39055 states and 62322 transitions. [2022-12-14 09:25:59,401 INFO L78 Accepts]: Start accepts. Automaton has 39055 states and 62322 transitions. Word has length 25 [2022-12-14 09:25:59,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:25:59,401 INFO L495 AbstractCegarLoop]: Abstraction has 39055 states and 62322 transitions. [2022-12-14 09:25:59,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:25:59,402 INFO L276 IsEmpty]: Start isEmpty. Operand 39055 states and 62322 transitions. [2022-12-14 09:25:59,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-12-14 09:25:59,403 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:25:59,403 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] [2022-12-14 09:25:59,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 09:25:59,403 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:25:59,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:25:59,403 INFO L85 PathProgramCache]: Analyzing trace with hash 2016154041, now seen corresponding path program 1 times [2022-12-14 09:25:59,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:25:59,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214745569] [2022-12-14 09:25:59,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:25:59,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:25:59,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:25:59,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:25:59,537 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:25:59,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214745569] [2022-12-14 09:25:59,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214745569] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:25:59,537 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:25:59,537 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:25:59,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214256319] [2022-12-14 09:25:59,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:25:59,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:25:59,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:25:59,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:25:59,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:25:59,538 INFO L87 Difference]: Start difference. First operand 39055 states and 62322 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, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:26:01,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:26:01,959 INFO L93 Difference]: Finished difference Result 116650 states and 186066 transitions. [2022-12-14 09:26:01,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:26:01,959 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 33 [2022-12-14 09:26:01,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:26:02,270 INFO L225 Difference]: With dead ends: 116650 [2022-12-14 09:26:02,271 INFO L226 Difference]: Without dead ends: 77596 [2022-12-14 09:26:02,391 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 [2022-12-14 09:26:02,392 INFO L413 NwaCegarLoop]: 1110 mSDtfsCounter, 991 mSDsluCounter, 901 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 991 SdHoareTripleChecker+Valid, 2011 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-14 09:26:02,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [991 Valid, 2011 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-14 09:26:02,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77596 states. [2022-12-14 09:26:04,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77596 to 77583. [2022-12-14 09:26:04,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77583 states, 54088 states have (on average 1.5313563082384263) internal successors, (82828), 54093 states have internal predecessors, (82828), 20422 states have call successors, (20422), 3073 states have call predecessors, (20422), 3072 states have return successors, (20416), 20416 states have call predecessors, (20416), 20416 states have call successors, (20416) [2022-12-14 09:26:04,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77583 states to 77583 states and 123666 transitions. [2022-12-14 09:26:04,745 INFO L78 Accepts]: Start accepts. Automaton has 77583 states and 123666 transitions. Word has length 33 [2022-12-14 09:26:04,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:26:04,745 INFO L495 AbstractCegarLoop]: Abstraction has 77583 states and 123666 transitions. [2022-12-14 09:26:04,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:26:04,745 INFO L276 IsEmpty]: Start isEmpty. Operand 77583 states and 123666 transitions. [2022-12-14 09:26:04,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-12-14 09:26:04,746 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:26:04,746 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] [2022-12-14 09:26:04,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 09:26:04,746 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:26:04,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:26:04,747 INFO L85 PathProgramCache]: Analyzing trace with hash 1258742832, now seen corresponding path program 1 times [2022-12-14 09:26:04,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:26:04,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43132471] [2022-12-14 09:26:04,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:26:04,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:26:04,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:26:04,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:26:04,865 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:26:04,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43132471] [2022-12-14 09:26:04,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43132471] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:26:04,865 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:26:04,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:26:04,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995188309] [2022-12-14 09:26:04,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:26:04,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:26:04,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:26:04,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:26:04,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:26:04,866 INFO L87 Difference]: Start difference. First operand 77583 states and 123666 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, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:26:09,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:26:09,641 INFO L93 Difference]: Finished difference Result 232234 states and 370098 transitions. [2022-12-14 09:26:09,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:26:09,642 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 33 [2022-12-14 09:26:09,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:26:10,259 INFO L225 Difference]: With dead ends: 232234 [2022-12-14 09:26:10,259 INFO L226 Difference]: Without dead ends: 154652 [2022-12-14 09:26:10,434 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 [2022-12-14 09:26:10,435 INFO L413 NwaCegarLoop]: 1123 mSDtfsCounter, 997 mSDsluCounter, 904 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 997 SdHoareTripleChecker+Valid, 2027 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-14 09:26:10,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [997 Valid, 2027 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-14 09:26:10,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154652 states. [2022-12-14 09:26:15,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154652 to 154639. [2022-12-14 09:26:15,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154639 states, 107784 states have (on average 1.5296890076449194) internal successors, (164876), 107789 states have internal predecessors, (164876), 40710 states have call successors, (40710), 6145 states have call predecessors, (40710), 6144 states have return successors, (40704), 40704 states have call predecessors, (40704), 40704 states have call successors, (40704) [2022-12-14 09:26:16,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154639 states to 154639 states and 246290 transitions. [2022-12-14 09:26:16,339 INFO L78 Accepts]: Start accepts. Automaton has 154639 states and 246290 transitions. Word has length 33 [2022-12-14 09:26:16,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:26:16,340 INFO L495 AbstractCegarLoop]: Abstraction has 154639 states and 246290 transitions. [2022-12-14 09:26:16,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:26:16,340 INFO L276 IsEmpty]: Start isEmpty. Operand 154639 states and 246290 transitions. [2022-12-14 09:26:16,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-12-14 09:26:16,342 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:26:16,342 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] [2022-12-14 09:26:16,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 09:26:16,342 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:26:16,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:26:16,343 INFO L85 PathProgramCache]: Analyzing trace with hash -728273824, now seen corresponding path program 1 times [2022-12-14 09:26:16,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:26:16,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502788322] [2022-12-14 09:26:16,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:26:16,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:26:16,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:26:16,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:26:16,476 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:26:16,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502788322] [2022-12-14 09:26:16,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502788322] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:26:16,476 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:26:16,476 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:26:16,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333881301] [2022-12-14 09:26:16,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:26:16,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:26:16,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:26:16,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:26:16,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:26:16,478 INFO L87 Difference]: Start difference. First operand 154639 states and 246290 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, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:26:24,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:26:24,010 INFO L93 Difference]: Finished difference Result 462890 states and 737074 transitions. [2022-12-14 09:26:24,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:26:24,010 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, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 36 [2022-12-14 09:26:24,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:26:25,150 INFO L225 Difference]: With dead ends: 462890 [2022-12-14 09:26:25,150 INFO L226 Difference]: Without dead ends: 308252 [2022-12-14 09:26:25,537 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 [2022-12-14 09:26:25,537 INFO L413 NwaCegarLoop]: 1129 mSDtfsCounter, 994 mSDsluCounter, 904 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 994 SdHoareTripleChecker+Valid, 2033 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-14 09:26:25,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [994 Valid, 2033 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-14 09:26:25,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308252 states. [2022-12-14 09:26:34,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308252 to 308239. [2022-12-14 09:26:35,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308239 states, 214792 states have (on average 1.528008491936385) internal successors, (328204), 214797 states have internal predecessors, (328204), 81158 states have call successors, (81158), 12289 states have call predecessors, (81158), 12288 states have return successors, (81152), 81152 states have call predecessors, (81152), 81152 states have call successors, (81152) [2022-12-14 09:26:36,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308239 states to 308239 states and 490514 transitions. [2022-12-14 09:26:36,270 INFO L78 Accepts]: Start accepts. Automaton has 308239 states and 490514 transitions. Word has length 36 [2022-12-14 09:26:36,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:26:36,271 INFO L495 AbstractCegarLoop]: Abstraction has 308239 states and 490514 transitions. [2022-12-14 09:26:36,271 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, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:26:36,271 INFO L276 IsEmpty]: Start isEmpty. Operand 308239 states and 490514 transitions. [2022-12-14 09:26:36,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-12-14 09:26:36,272 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:26:36,272 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] [2022-12-14 09:26:36,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 09:26:36,272 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:26:36,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:26:36,273 INFO L85 PathProgramCache]: Analyzing trace with hash 165081197, now seen corresponding path program 1 times [2022-12-14 09:26:36,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:26:36,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200272629] [2022-12-14 09:26:36,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:26:36,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:26:36,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:26:36,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:26:36,391 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:26:36,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200272629] [2022-12-14 09:26:36,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200272629] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:26:36,392 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:26:36,392 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:26:36,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886159445] [2022-12-14 09:26:36,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:26:36,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:26:36,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:26:36,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:26:36,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:26:36,393 INFO L87 Difference]: Start difference. First operand 308239 states and 490514 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, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:26:52,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:26:52,321 INFO L93 Difference]: Finished difference Result 920618 states and 1464370 transitions. [2022-12-14 09:26:52,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:26:52,322 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, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 36 [2022-12-14 09:26:52,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:26:54,636 INFO L225 Difference]: With dead ends: 920618 [2022-12-14 09:26:54,636 INFO L226 Difference]: Without dead ends: 612380 [2022-12-14 09:26:55,600 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 [2022-12-14 09:26:55,601 INFO L413 NwaCegarLoop]: 1134 mSDtfsCounter, 988 mSDsluCounter, 901 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 988 SdHoareTripleChecker+Valid, 2035 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-14 09:26:55,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [988 Valid, 2035 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-14 09:26:56,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612380 states. [2022-12-14 09:27:15,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612380 to 612367. [2022-12-14 09:27:15,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 612367 states, 426504 states have (on average 1.5258098400015006) internal successors, (650764), 426509 states have internal predecessors, (650764), 161286 states have call successors, (161286), 24577 states have call predecessors, (161286), 24576 states have return successors, (161280), 161280 states have call predecessors, (161280), 161280 states have call successors, (161280) [2022-12-14 09:27:17,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612367 states to 612367 states and 973330 transitions. [2022-12-14 09:27:17,937 INFO L78 Accepts]: Start accepts. Automaton has 612367 states and 973330 transitions. Word has length 36 [2022-12-14 09:27:17,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:27:17,938 INFO L495 AbstractCegarLoop]: Abstraction has 612367 states and 973330 transitions. [2022-12-14 09:27:17,938 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, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:27:17,938 INFO L276 IsEmpty]: Start isEmpty. Operand 612367 states and 973330 transitions. [2022-12-14 09:27:17,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-12-14 09:27:17,939 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:27:17,939 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, 1] [2022-12-14 09:27:17,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 09:27:17,940 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:27:17,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:27:17,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1187077749, now seen corresponding path program 1 times [2022-12-14 09:27:17,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:27:17,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828049895] [2022-12-14 09:27:17,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:27:17,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:27:17,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:27:18,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:27:18,073 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:27:18,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828049895] [2022-12-14 09:27:18,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828049895] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:27:18,074 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:27:18,074 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:27:18,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515334713] [2022-12-14 09:27:18,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:27:18,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:27:18,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:27:18,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:27:18,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:27:18,075 INFO L87 Difference]: Start difference. First operand 612367 states and 973330 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:27:51,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:27:51,813 INFO L93 Difference]: Finished difference Result 1833002 states and 2912818 transitions. [2022-12-14 09:27:51,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:27:51,813 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 38 [2022-12-14 09:27:51,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:27:56,790 INFO L225 Difference]: With dead ends: 1833002 [2022-12-14 09:27:56,790 INFO L226 Difference]: Without dead ends: 1220636 [2022-12-14 09:27:58,900 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 [2022-12-14 09:27:58,901 INFO L413 NwaCegarLoop]: 1147 mSDtfsCounter, 990 mSDsluCounter, 905 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 990 SdHoareTripleChecker+Valid, 2052 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-14 09:27:58,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [990 Valid, 2052 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-14 09:27:59,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1220636 states. [2022-12-14 09:28:41,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1220636 to 1220623. [2022-12-14 09:28:42,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1220623 states, 849928 states have (on average 1.5240961587334456) internal successors, (1295372), 849933 states have internal predecessors, (1295372), 321542 states have call successors, (321542), 49153 states have call predecessors, (321542), 49152 states have return successors, (321536), 321536 states have call predecessors, (321536), 321536 states have call successors, (321536)