./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--abituguru3.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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2304ee59-9726-4397-81e8-7c5ac15da02d/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2304ee59-9726-4397-81e8-7c5ac15da02d/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_2304ee59-9726-4397-81e8-7c5ac15da02d/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2304ee59-9726-4397-81e8-7c5ac15da02d/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--abituguru3.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2304ee59-9726-4397-81e8-7c5ac15da02d/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_2304ee59-9726-4397-81e8-7c5ac15da02d/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 7d6844ab51374c8e656234daa6d7df2c3927c38bae9fcbeafc3fadf6f3b893b1 --- 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 10:30:08,264 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 10:30:08,266 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 10:30:08,279 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 10:30:08,279 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 10:30:08,280 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 10:30:08,281 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 10:30:08,282 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 10:30:08,283 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 10:30:08,283 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 10:30:08,284 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 10:30:08,285 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 10:30:08,285 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 10:30:08,285 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 10:30:08,286 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 10:30:08,287 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 10:30:08,287 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 10:30:08,288 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 10:30:08,289 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 10:30:08,290 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 10:30:08,291 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 10:30:08,292 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 10:30:08,293 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 10:30:08,293 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 10:30:08,295 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 10:30:08,296 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 10:30:08,296 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 10:30:08,296 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 10:30:08,297 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 10:30:08,297 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 10:30:08,297 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 10:30:08,298 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 10:30:08,299 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 10:30:08,299 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 10:30:08,300 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 10:30:08,300 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 10:30:08,300 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 10:30:08,301 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 10:30:08,301 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 10:30:08,301 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 10:30:08,302 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 10:30:08,303 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2304ee59-9726-4397-81e8-7c5ac15da02d/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 10:30:08,317 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 10:30:08,317 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 10:30:08,317 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 10:30:08,317 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 10:30:08,318 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 10:30:08,318 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 10:30:08,318 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 10:30:08,318 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 10:30:08,318 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 10:30:08,318 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 10:30:08,318 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 10:30:08,319 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 10:30:08,319 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 10:30:08,319 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 10:30:08,319 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 10:30:08,319 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 10:30:08,319 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 10:30:08,319 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 10:30:08,320 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 10:30:08,320 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 10:30:08,320 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 10:30:08,320 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 10:30:08,320 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 10:30:08,320 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 10:30:08,321 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 10:30:08,321 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 10:30:08,321 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 10:30:08,321 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 10:30:08,321 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 10:30:08,321 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:30:08,322 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 10:30:08,322 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 10:30:08,322 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 10:30:08,322 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 10:30:08,322 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 10:30:08,322 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 10:30:08,322 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 10:30:08,323 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 10:30:08,323 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_2304ee59-9726-4397-81e8-7c5ac15da02d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2304ee59-9726-4397-81e8-7c5ac15da02d/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7d6844ab51374c8e656234daa6d7df2c3927c38bae9fcbeafc3fadf6f3b893b1 [2022-12-14 10:30:08,503 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 10:30:08,519 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 10:30:08,521 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 10:30:08,522 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 10:30:08,522 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 10:30:08,523 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2304ee59-9726-4397-81e8-7c5ac15da02d/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--abituguru3.ko-main.cil.out.i [2022-12-14 10:30:11,107 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 10:30:11,394 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 10:30:11,394 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2304ee59-9726-4397-81e8-7c5ac15da02d/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--abituguru3.ko-main.cil.out.i [2022-12-14 10:30:11,415 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2304ee59-9726-4397-81e8-7c5ac15da02d/bin/utaipan-gh47qXpMRh/data/c772621a1/eb9b26e05c9c42549573f8cc85f45f14/FLAG654004dcf [2022-12-14 10:30:11,427 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2304ee59-9726-4397-81e8-7c5ac15da02d/bin/utaipan-gh47qXpMRh/data/c772621a1/eb9b26e05c9c42549573f8cc85f45f14 [2022-12-14 10:30:11,429 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 10:30:11,430 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 10:30:11,431 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 10:30:11,431 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 10:30:11,434 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 10:30:11,435 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:30:11" (1/1) ... [2022-12-14 10:30:11,436 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ff90e68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:30:11, skipping insertion in model container [2022-12-14 10:30:11,436 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:30:11" (1/1) ... [2022-12-14 10:30:11,442 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 10:30:11,504 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 10:30:11,769 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-12-14 10:30:11,773 WARN L623 FunctionHandler]: Unknown extern function dev_set_drvdata [2022-12-14 10:30:11,858 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 10:30:11,862 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 10:30:11,865 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:30:11,866 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:30:11,867 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:30:11,868 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:30:11,868 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:30:11,869 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:30:11,869 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 10:30:11,872 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:30:11,873 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:30:11,874 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:30:11,875 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:30:11,876 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:30:11,886 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 10:30:11,890 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 10:30:11,890 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 10:30:11,893 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-12-14 10:30:11,894 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 10:30:11,894 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 10:30:11,897 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-12-14 10:30:11,897 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 10:30:11,900 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 10:30:11,914 WARN L623 FunctionHandler]: Unknown extern function devm_kzalloc [2022-12-14 10:30:11,915 WARN L623 FunctionHandler]: Unknown extern function platform_get_resource [2022-12-14 10:30:11,915 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-14 10:30:11,918 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:30:11,919 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:30:11,919 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:30:11,924 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:30:11,924 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-12-14 10:30:11,925 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-12-14 10:30:11,926 WARN L623 FunctionHandler]: Unknown extern function hwmon_device_register [2022-12-14 10:30:11,926 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-12-14 10:30:11,927 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-12-14 10:30:11,930 WARN L623 FunctionHandler]: Unknown extern function hwmon_device_unregister [2022-12-14 10:30:11,930 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-12-14 10:30:11,931 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-12-14 10:30:11,932 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-12-14 10:30:11,938 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-12-14 10:30:11,940 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-12-14 10:30:11,943 WARN L623 FunctionHandler]: Unknown extern function dmi_get_system_info [2022-12-14 10:30:11,944 WARN L623 FunctionHandler]: Unknown extern function dmi_get_system_info [2022-12-14 10:30:11,944 WARN L623 FunctionHandler]: Unknown extern function strcspn [2022-12-14 10:30:11,945 WARN L623 FunctionHandler]: Unknown extern function strncasecmp [2022-12-14 10:30:11,948 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:30:11,949 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:30:11,951 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:30:11,952 WARN L623 FunctionHandler]: Unknown extern function platform_device_alloc [2022-12-14 10:30:11,952 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:30:11,953 WARN L623 FunctionHandler]: Unknown extern function platform_device_add_resources [2022-12-14 10:30:11,969 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:30:11,970 WARN L623 FunctionHandler]: Unknown extern function platform_device_add [2022-12-14 10:30:11,970 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:30:11,971 WARN L623 FunctionHandler]: Unknown extern function platform_device_put [2022-12-14 10:30:11,974 WARN L623 FunctionHandler]: Unknown extern function platform_device_unregister [2022-12-14 10:30:11,998 WARN L623 FunctionHandler]: Unknown extern function ldv_abituguru3_pm_suspend_late_2 [2022-12-14 10:30:11,999 WARN L623 FunctionHandler]: Unknown extern function ldv_abituguru3_pm_restore_early_2 [2022-12-14 10:30:11,999 WARN L623 FunctionHandler]: Unknown extern function ldv_abituguru3_pm_resume_early_2 [2022-12-14 10:30:12,000 WARN L623 FunctionHandler]: Unknown extern function ldv_abituguru3_pm_thaw_early_2 [2022-12-14 10:30:12,000 WARN L623 FunctionHandler]: Unknown extern function ldv_abituguru3_pm_resume_noirq_2 [2022-12-14 10:30:12,000 WARN L623 FunctionHandler]: Unknown extern function ldv_abituguru3_pm_freeze_noirq_2 [2022-12-14 10:30:12,001 WARN L623 FunctionHandler]: Unknown extern function ldv_abituguru3_pm_prepare_2 [2022-12-14 10:30:12,009 WARN L623 FunctionHandler]: Unknown extern function ldv_abituguru3_pm_freeze_late_2 [2022-12-14 10:30:12,010 WARN L623 FunctionHandler]: Unknown extern function ldv_abituguru3_pm_thaw_noirq_2 [2022-12-14 10:30:12,011 WARN L623 FunctionHandler]: Unknown extern function ldv_abituguru3_pm_poweroff_noirq_2 [2022-12-14 10:30:12,012 WARN L623 FunctionHandler]: Unknown extern function ldv_abituguru3_pm_poweroff_late_2 [2022-12-14 10:30:12,012 WARN L623 FunctionHandler]: Unknown extern function ldv_abituguru3_pm_restore_noirq_2 [2022-12-14 10:30:12,013 WARN L623 FunctionHandler]: Unknown extern function ldv_abituguru3_pm_suspend_noirq_2 [2022-12-14 10:30:12,013 WARN L623 FunctionHandler]: Unknown extern function ldv_abituguru3_pm_complete_2 [2022-12-14 10:30:12,015 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 10:30:12,015 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 10:30:12,015 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 10:30:12,016 WARN L623 FunctionHandler]: Unknown extern function mutex_trylock [2022-12-14 10:30:12,016 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 10:30:12,017 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 10:30:12,017 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 10:30:12,017 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 10:30:12,018 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 10:30:12,018 WARN L623 FunctionHandler]: Unknown extern function platform_driver_register [2022-12-14 10:30:12,019 WARN L623 FunctionHandler]: Unknown extern function platform_driver_unregister [2022-12-14 10:30:12,019 WARN L623 FunctionHandler]: Unknown extern function platform_driver_unregister [2022-12-14 10:30:12,021 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_2304ee59-9726-4397-81e8-7c5ac15da02d/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--abituguru3.ko-main.cil.out.i[132927,132940] [2022-12-14 10:30:12,062 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:30:12,116 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 10:30:12,145 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-12-14 10:30:12,146 WARN L623 FunctionHandler]: Unknown extern function dev_set_drvdata [2022-12-14 10:30:12,173 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 10:30:12,174 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 10:30:12,175 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:30:12,176 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:30:12,176 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:30:12,177 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:30:12,177 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:30:12,177 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:30:12,178 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 10:30:12,179 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:30:12,179 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:30:12,180 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:30:12,180 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:30:12,181 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:30:12,184 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 10:30:12,185 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 10:30:12,186 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 10:30:12,186 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-12-14 10:30:12,187 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 10:30:12,187 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 10:30:12,188 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-12-14 10:30:12,188 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 10:30:12,189 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 10:30:12,196 WARN L623 FunctionHandler]: Unknown extern function devm_kzalloc [2022-12-14 10:30:12,196 WARN L623 FunctionHandler]: Unknown extern function platform_get_resource [2022-12-14 10:30:12,197 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-14 10:30:12,198 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:30:12,198 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:30:12,199 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:30:12,201 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:30:12,201 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-12-14 10:30:12,202 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-12-14 10:30:12,202 WARN L623 FunctionHandler]: Unknown extern function hwmon_device_register [2022-12-14 10:30:12,203 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-12-14 10:30:12,203 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-12-14 10:30:12,204 WARN L623 FunctionHandler]: Unknown extern function hwmon_device_unregister [2022-12-14 10:30:12,204 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-12-14 10:30:12,205 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-12-14 10:30:12,206 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-12-14 10:30:12,209 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-12-14 10:30:12,209 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-12-14 10:30:12,210 WARN L623 FunctionHandler]: Unknown extern function dmi_get_system_info [2022-12-14 10:30:12,211 WARN L623 FunctionHandler]: Unknown extern function dmi_get_system_info [2022-12-14 10:30:12,211 WARN L623 FunctionHandler]: Unknown extern function strcspn [2022-12-14 10:30:12,212 WARN L623 FunctionHandler]: Unknown extern function strncasecmp [2022-12-14 10:30:12,213 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:30:12,213 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:30:12,214 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:30:12,214 WARN L623 FunctionHandler]: Unknown extern function platform_device_alloc [2022-12-14 10:30:12,215 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:30:12,215 WARN L623 FunctionHandler]: Unknown extern function platform_device_add_resources [2022-12-14 10:30:12,215 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:30:12,215 WARN L623 FunctionHandler]: Unknown extern function platform_device_add [2022-12-14 10:30:12,216 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:30:12,216 WARN L623 FunctionHandler]: Unknown extern function platform_device_put [2022-12-14 10:30:12,216 WARN L623 FunctionHandler]: Unknown extern function platform_device_unregister [2022-12-14 10:30:12,219 WARN L623 FunctionHandler]: Unknown extern function ldv_abituguru3_pm_suspend_late_2 [2022-12-14 10:30:12,219 WARN L623 FunctionHandler]: Unknown extern function ldv_abituguru3_pm_restore_early_2 [2022-12-14 10:30:12,220 WARN L623 FunctionHandler]: Unknown extern function ldv_abituguru3_pm_resume_early_2 [2022-12-14 10:30:12,220 WARN L623 FunctionHandler]: Unknown extern function ldv_abituguru3_pm_thaw_early_2 [2022-12-14 10:30:12,220 WARN L623 FunctionHandler]: Unknown extern function ldv_abituguru3_pm_resume_noirq_2 [2022-12-14 10:30:12,220 WARN L623 FunctionHandler]: Unknown extern function ldv_abituguru3_pm_freeze_noirq_2 [2022-12-14 10:30:12,221 WARN L623 FunctionHandler]: Unknown extern function ldv_abituguru3_pm_prepare_2 [2022-12-14 10:30:12,221 WARN L623 FunctionHandler]: Unknown extern function ldv_abituguru3_pm_freeze_late_2 [2022-12-14 10:30:12,221 WARN L623 FunctionHandler]: Unknown extern function ldv_abituguru3_pm_thaw_noirq_2 [2022-12-14 10:30:12,221 WARN L623 FunctionHandler]: Unknown extern function ldv_abituguru3_pm_poweroff_noirq_2 [2022-12-14 10:30:12,222 WARN L623 FunctionHandler]: Unknown extern function ldv_abituguru3_pm_poweroff_late_2 [2022-12-14 10:30:12,222 WARN L623 FunctionHandler]: Unknown extern function ldv_abituguru3_pm_restore_noirq_2 [2022-12-14 10:30:12,222 WARN L623 FunctionHandler]: Unknown extern function ldv_abituguru3_pm_suspend_noirq_2 [2022-12-14 10:30:12,222 WARN L623 FunctionHandler]: Unknown extern function ldv_abituguru3_pm_complete_2 [2022-12-14 10:30:12,223 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 10:30:12,223 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 10:30:12,224 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 10:30:12,224 WARN L623 FunctionHandler]: Unknown extern function mutex_trylock [2022-12-14 10:30:12,224 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 10:30:12,224 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 10:30:12,225 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 10:30:12,225 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 10:30:12,225 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 10:30:12,225 WARN L623 FunctionHandler]: Unknown extern function platform_driver_register [2022-12-14 10:30:12,226 WARN L623 FunctionHandler]: Unknown extern function platform_driver_unregister [2022-12-14 10:30:12,226 WARN L623 FunctionHandler]: Unknown extern function platform_driver_unregister [2022-12-14 10:30:12,226 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_2304ee59-9726-4397-81e8-7c5ac15da02d/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--abituguru3.ko-main.cil.out.i[132927,132940] [2022-12-14 10:30:12,235 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:30:12,311 INFO L208 MainTranslator]: Completed translation [2022-12-14 10:30:12,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:30:12 WrapperNode [2022-12-14 10:30:12,312 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 10:30:12,312 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 10:30:12,312 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 10:30:12,312 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 10:30:12,317 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:30:12" (1/1) ... [2022-12-14 10:30:12,366 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:30:12" (1/1) ... [2022-12-14 10:30:12,558 INFO L138 Inliner]: procedures = 133, calls = 5552, calls flagged for inlining = 57, calls inlined = 51, statements flattened = 6634 [2022-12-14 10:30:12,558 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 10:30:12,559 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 10:30:12,559 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 10:30:12,559 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 10:30:12,568 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:30:12" (1/1) ... [2022-12-14 10:30:12,568 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:30:12" (1/1) ... [2022-12-14 10:30:12,623 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:30:12" (1/1) ... [2022-12-14 10:30:12,624 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:30:12" (1/1) ... [2022-12-14 10:30:12,708 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:30:12" (1/1) ... [2022-12-14 10:30:12,720 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:30:12" (1/1) ... [2022-12-14 10:30:12,737 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:30:12" (1/1) ... [2022-12-14 10:30:12,746 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:30:12" (1/1) ... [2022-12-14 10:30:12,773 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 10:30:12,773 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 10:30:12,774 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 10:30:12,774 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 10:30:12,774 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:30:12" (1/1) ... [2022-12-14 10:30:12,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:30:12,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2304ee59-9726-4397-81e8-7c5ac15da02d/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:30:12,798 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2304ee59-9726-4397-81e8-7c5ac15da02d/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 10:30:12,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2304ee59-9726-4397-81e8-7c5ac15da02d/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 10:30:12,831 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_wait_while_busy [2022-12-14 10:30:12,831 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_wait_while_busy [2022-12-14 10:30:12,831 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-12-14 10:30:12,831 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-12-14 10:30:12,831 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_wait_for_read [2022-12-14 10:30:12,831 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_wait_for_read [2022-12-14 10:30:12,831 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-12-14 10:30:12,831 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-12-14 10:30:12,831 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2022-12-14 10:30:12,831 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2022-12-14 10:30:12,831 INFO L130 BoogieDeclarations]: Found specification of procedure dmi_get_system_info [2022-12-14 10:30:12,831 INFO L138 BoogieDeclarations]: Found implementation of procedure dmi_get_system_info [2022-12-14 10:30:12,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 10:30:12,831 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_read [2022-12-14 10:30:12,832 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_read [2022-12-14 10:30:12,832 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-14 10:30:12,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-14 10:30:12,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 10:30:12,832 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-12-14 10:30:12,832 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-12-14 10:30:12,832 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-12-14 10:30:12,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-12-14 10:30:12,832 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2022-12-14 10:30:12,832 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2022-12-14 10:30:12,832 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_update_lock_of_abituguru3_data [2022-12-14 10:30:12,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_update_lock_of_abituguru3_data [2022-12-14 10:30:12,832 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_suspend [2022-12-14 10:30:12,832 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_suspend [2022-12-14 10:30:12,832 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_read_increment_offset [2022-12-14 10:30:12,832 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_read_increment_offset [2022-12-14 10:30:12,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 10:30:12,833 INFO L130 BoogieDeclarations]: Found specification of procedure inb_p [2022-12-14 10:30:12,833 INFO L138 BoogieDeclarations]: Found implementation of procedure inb_p [2022-12-14 10:30:12,833 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-12-14 10:30:12,833 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-12-14 10:30:12,833 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 10:30:12,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 10:30:12,833 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 10:30:12,833 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_update_device [2022-12-14 10:30:12,833 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_update_device [2022-12-14 10:30:12,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 10:30:12,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 10:30:12,833 INFO L130 BoogieDeclarations]: Found specification of procedure platform_set_drvdata [2022-12-14 10:30:12,833 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_set_drvdata [2022-12-14 10:30:12,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 10:30:12,833 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_update_lock_of_abituguru3_data [2022-12-14 10:30:12,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_update_lock_of_abituguru3_data [2022-12-14 10:30:12,833 INFO L130 BoogieDeclarations]: Found specification of procedure strcspn [2022-12-14 10:30:12,834 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-12-14 10:30:12,834 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-12-14 10:30:12,834 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-12-14 10:30:12,834 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-12-14 10:30:12,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 10:30:12,834 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2022-12-14 10:30:12,834 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2022-12-14 10:30:12,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 10:30:12,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 10:30:12,834 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_resume [2022-12-14 10:30:12,834 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_resume [2022-12-14 10:30:12,834 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-12-14 10:30:12,834 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-12-14 10:30:13,065 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 10:30:13,067 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 10:30:25,085 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 10:30:25,973 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 10:30:25,973 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 10:30:25,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:30:25 BoogieIcfgContainer [2022-12-14 10:30:25,975 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 10:30:25,977 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 10:30:25,977 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 10:30:25,979 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 10:30:25,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 10:30:11" (1/3) ... [2022-12-14 10:30:25,980 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31ef4138 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:30:25, skipping insertion in model container [2022-12-14 10:30:25,980 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:30:12" (2/3) ... [2022-12-14 10:30:25,980 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31ef4138 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:30:25, skipping insertion in model container [2022-12-14 10:30:25,980 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:30:25" (3/3) ... [2022-12-14 10:30:25,981 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--hwmon--abituguru3.ko-main.cil.out.i [2022-12-14 10:30:25,996 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 10:30:25,997 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 10:30:26,037 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 10:30:26,042 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;@67e181df, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 10:30:26,042 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 10:30:26,047 INFO L276 IsEmpty]: Start isEmpty. Operand has 326 states, 222 states have (on average 1.445945945945946) internal successors, (321), 231 states have internal predecessors, (321), 78 states have call successors, (78), 24 states have call predecessors, (78), 24 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2022-12-14 10:30:26,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 10:30:26,053 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:30:26,054 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:30:26,054 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:30:26,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:30:26,058 INFO L85 PathProgramCache]: Analyzing trace with hash -2131251577, now seen corresponding path program 1 times [2022-12-14 10:30:26,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:30:26,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874596489] [2022-12-14 10:30:26,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:30:26,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:30:26,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:30:27,320 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 10:30:27,320 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:30:27,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874596489] [2022-12-14 10:30:27,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874596489] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:30:27,321 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:30:27,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:30:27,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621862182] [2022-12-14 10:30:27,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:30:27,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:30:27,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:30:27,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:30:27,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:30:27,351 INFO L87 Difference]: Start difference. First operand has 326 states, 222 states have (on average 1.445945945945946) internal successors, (321), 231 states have internal predecessors, (321), 78 states have call successors, (78), 24 states have call predecessors, (78), 24 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 10:30:27,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:30:27,960 INFO L93 Difference]: Finished difference Result 921 states and 1370 transitions. [2022-12-14 10:30:27,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:30:27,962 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2022-12-14 10:30:27,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:30:27,972 INFO L225 Difference]: With dead ends: 921 [2022-12-14 10:30:27,972 INFO L226 Difference]: Without dead ends: 594 [2022-12-14 10:30:27,976 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 10:30:27,979 INFO L413 NwaCegarLoop]: 447 mSDtfsCounter, 445 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 445 SdHoareTripleChecker+Valid, 780 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-14 10:30:27,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [445 Valid, 780 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-14 10:30:27,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2022-12-14 10:30:28,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 590. [2022-12-14 10:30:28,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 590 states, 401 states have (on average 1.43142144638404) internal successors, (574), 411 states have internal predecessors, (574), 143 states have call successors, (143), 46 states have call predecessors, (143), 45 states have return successors, (138), 138 states have call predecessors, (138), 138 states have call successors, (138) [2022-12-14 10:30:28,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 855 transitions. [2022-12-14 10:30:28,041 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 855 transitions. Word has length 15 [2022-12-14 10:30:28,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:30:28,042 INFO L495 AbstractCegarLoop]: Abstraction has 590 states and 855 transitions. [2022-12-14 10:30:28,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 10:30:28,042 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 855 transitions. [2022-12-14 10:30:28,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-12-14 10:30:28,043 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:30:28,043 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 10:30:28,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 10:30:28,044 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:30:28,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:30:28,044 INFO L85 PathProgramCache]: Analyzing trace with hash 690098245, now seen corresponding path program 1 times [2022-12-14 10:30:28,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:30:28,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548770576] [2022-12-14 10:30:28,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:30:28,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:30:28,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:30:28,610 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 10:30:28,610 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:30:28,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548770576] [2022-12-14 10:30:28,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548770576] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:30:28,611 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:30:28,611 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:30:28,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113782279] [2022-12-14 10:30:28,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:30:28,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:30:28,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:30:28,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:30:28,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:30:28,614 INFO L87 Difference]: Start difference. First operand 590 states and 855 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 10:30:29,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:30:29,204 INFO L93 Difference]: Finished difference Result 1440 states and 2069 transitions. [2022-12-14 10:30:29,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:30:29,205 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 10:30:29,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:30:29,211 INFO L225 Difference]: With dead ends: 1440 [2022-12-14 10:30:29,211 INFO L226 Difference]: Without dead ends: 851 [2022-12-14 10:30:29,214 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 10:30:29,215 INFO L413 NwaCegarLoop]: 464 mSDtfsCounter, 400 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 400 SdHoareTripleChecker+Valid, 832 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-14 10:30:29,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [400 Valid, 832 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-14 10:30:29,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 851 states. [2022-12-14 10:30:29,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 851 to 824. [2022-12-14 10:30:29,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 824 states, 564 states have (on average 1.423758865248227) internal successors, (803), 578 states have internal predecessors, (803), 192 states have call successors, (192), 68 states have call predecessors, (192), 67 states have return successors, (187), 186 states have call predecessors, (187), 187 states have call successors, (187) [2022-12-14 10:30:29,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 824 states to 824 states and 1182 transitions. [2022-12-14 10:30:29,274 INFO L78 Accepts]: Start accepts. Automaton has 824 states and 1182 transitions. Word has length 25 [2022-12-14 10:30:29,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:30:29,274 INFO L495 AbstractCegarLoop]: Abstraction has 824 states and 1182 transitions. [2022-12-14 10:30:29,274 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 10:30:29,274 INFO L276 IsEmpty]: Start isEmpty. Operand 824 states and 1182 transitions. [2022-12-14 10:30:29,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-12-14 10:30:29,276 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:30:29,276 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] [2022-12-14 10:30:29,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 10:30:29,276 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:30:29,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:30:29,277 INFO L85 PathProgramCache]: Analyzing trace with hash -1315699621, now seen corresponding path program 1 times [2022-12-14 10:30:29,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:30:29,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573611854] [2022-12-14 10:30:29,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:30:29,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:30:29,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:30:29,854 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 10:30:29,854 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:30:29,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573611854] [2022-12-14 10:30:29,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573611854] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:30:29,854 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:30:29,854 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:30:29,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268793097] [2022-12-14 10:30:29,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:30:29,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:30:29,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:30:29,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:30:29,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:30:29,856 INFO L87 Difference]: Start difference. First operand 824 states and 1182 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 10:30:30,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:30:30,268 INFO L93 Difference]: Finished difference Result 826 states and 1183 transitions. [2022-12-14 10:30:30,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:30:30,269 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), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 27 [2022-12-14 10:30:30,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:30:30,273 INFO L225 Difference]: With dead ends: 826 [2022-12-14 10:30:30,273 INFO L226 Difference]: Without dead ends: 823 [2022-12-14 10:30:30,274 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 10:30:30,275 INFO L413 NwaCegarLoop]: 379 mSDtfsCounter, 451 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 451 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 10:30:30,275 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [451 Valid, 379 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 10:30:30,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 823 states. [2022-12-14 10:30:30,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 823 to 823. [2022-12-14 10:30:30,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 823 states, 564 states have (on average 1.4219858156028369) internal successors, (802), 577 states have internal predecessors, (802), 191 states have call successors, (191), 68 states have call predecessors, (191), 67 states have return successors, (187), 186 states have call predecessors, (187), 187 states have call successors, (187) [2022-12-14 10:30:30,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 823 states to 823 states and 1180 transitions. [2022-12-14 10:30:30,304 INFO L78 Accepts]: Start accepts. Automaton has 823 states and 1180 transitions. Word has length 27 [2022-12-14 10:30:30,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:30:30,304 INFO L495 AbstractCegarLoop]: Abstraction has 823 states and 1180 transitions. [2022-12-14 10:30:30,305 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), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 10:30:30,305 INFO L276 IsEmpty]: Start isEmpty. Operand 823 states and 1180 transitions. [2022-12-14 10:30:30,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-12-14 10:30:30,305 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:30:30,305 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] [2022-12-14 10:30:30,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 10:30:30,306 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:30:30,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:30:30,306 INFO L85 PathProgramCache]: Analyzing trace with hash -2132166467, now seen corresponding path program 1 times [2022-12-14 10:30:30,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:30:30,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678936411] [2022-12-14 10:30:30,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:30:30,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:30:30,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:30:30,856 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 10:30:30,856 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:30:30,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678936411] [2022-12-14 10:30:30,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678936411] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:30:30,856 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:30:30,856 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:30:30,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784995443] [2022-12-14 10:30:30,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:30:30,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:30:30,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:30:30,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:30:30,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:30:30,857 INFO L87 Difference]: Start difference. First operand 823 states and 1180 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 10:30:31,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:30:31,321 INFO L93 Difference]: Finished difference Result 825 states and 1181 transitions. [2022-12-14 10:30:31,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:30:31,322 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), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 28 [2022-12-14 10:30:31,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:30:31,327 INFO L225 Difference]: With dead ends: 825 [2022-12-14 10:30:31,327 INFO L226 Difference]: Without dead ends: 822 [2022-12-14 10:30:31,328 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 10:30:31,329 INFO L413 NwaCegarLoop]: 377 mSDtfsCounter, 448 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 448 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 10:30:31,329 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [448 Valid, 377 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 10:30:31,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 822 states. [2022-12-14 10:30:31,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 822 to 822. [2022-12-14 10:30:31,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 822 states, 564 states have (on average 1.4202127659574468) internal successors, (801), 576 states have internal predecessors, (801), 190 states have call successors, (190), 68 states have call predecessors, (190), 67 states have return successors, (187), 186 states have call predecessors, (187), 187 states have call successors, (187) [2022-12-14 10:30:31,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 822 states to 822 states and 1178 transitions. [2022-12-14 10:30:31,360 INFO L78 Accepts]: Start accepts. Automaton has 822 states and 1178 transitions. Word has length 28 [2022-12-14 10:30:31,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:30:31,360 INFO L495 AbstractCegarLoop]: Abstraction has 822 states and 1178 transitions. [2022-12-14 10:30:31,360 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), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 10:30:31,360 INFO L276 IsEmpty]: Start isEmpty. Operand 822 states and 1178 transitions. [2022-12-14 10:30:31,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-12-14 10:30:31,361 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:30:31,361 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 10:30:31,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 10:30:31,361 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:30:31,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:30:31,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1672830050, now seen corresponding path program 1 times [2022-12-14 10:30:31,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:30:31,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107824401] [2022-12-14 10:30:31,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:30:31,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:30:31,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:30:31,918 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 10:30:31,919 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:30:31,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107824401] [2022-12-14 10:30:31,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107824401] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:30:31,919 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:30:31,919 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:30:31,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950726164] [2022-12-14 10:30:31,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:30:31,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:30:31,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:30:31,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:30:31,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:30:31,920 INFO L87 Difference]: Start difference. First operand 822 states and 1178 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 10:30:32,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:30:32,522 INFO L93 Difference]: Finished difference Result 1967 states and 2817 transitions. [2022-12-14 10:30:32,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:30:32,522 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 3 states have call successors, (3), 2 states have call predecessors, (3), 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 10:30:32,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:30:32,530 INFO L225 Difference]: With dead ends: 1967 [2022-12-14 10:30:32,530 INFO L226 Difference]: Without dead ends: 1351 [2022-12-14 10:30:32,533 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 10:30:32,534 INFO L413 NwaCegarLoop]: 430 mSDtfsCounter, 384 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 760 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-14 10:30:32,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [384 Valid, 760 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-14 10:30:32,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1351 states. [2022-12-14 10:30:32,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1351 to 1348. [2022-12-14 10:30:32,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1348 states, 919 states have (on average 1.409140369967356) internal successors, (1295), 946 states have internal predecessors, (1295), 321 states have call successors, (321), 115 states have call predecessors, (321), 107 states have return successors, (314), 304 states have call predecessors, (314), 314 states have call successors, (314) [2022-12-14 10:30:32,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1348 states to 1348 states and 1930 transitions. [2022-12-14 10:30:32,617 INFO L78 Accepts]: Start accepts. Automaton has 1348 states and 1930 transitions. Word has length 29 [2022-12-14 10:30:32,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:30:32,617 INFO L495 AbstractCegarLoop]: Abstraction has 1348 states and 1930 transitions. [2022-12-14 10:30:32,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 10:30:32,618 INFO L276 IsEmpty]: Start isEmpty. Operand 1348 states and 1930 transitions. [2022-12-14 10:30:32,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-12-14 10:30:32,619 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:30:32,620 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:30:32,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 10:30:32,620 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:30:32,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:30:32,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1926962356, now seen corresponding path program 1 times [2022-12-14 10:30:32,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:30:32,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437307277] [2022-12-14 10:30:32,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:30:32,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:30:32,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:30:33,960 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 10:30:33,960 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:30:33,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437307277] [2022-12-14 10:30:33,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437307277] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:30:33,960 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:30:33,960 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 10:30:33,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277452040] [2022-12-14 10:30:33,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:30:33,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 10:30:33,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:30:33,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 10:30:33,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 10:30:33,962 INFO L87 Difference]: Start difference. First operand 1348 states and 1930 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-14 10:30:34,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:30:34,480 INFO L93 Difference]: Finished difference Result 2415 states and 3443 transitions. [2022-12-14 10:30:34,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 10:30:34,481 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 47 [2022-12-14 10:30:34,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:30:34,488 INFO L225 Difference]: With dead ends: 2415 [2022-12-14 10:30:34,488 INFO L226 Difference]: Without dead ends: 1362 [2022-12-14 10:30:34,491 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:30:34,491 INFO L413 NwaCegarLoop]: 383 mSDtfsCounter, 17 mSDsluCounter, 756 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 1139 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 10:30:34,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 1139 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 10:30:34,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1362 states. [2022-12-14 10:30:34,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1362 to 1350. [2022-12-14 10:30:34,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1350 states, 921 states have (on average 1.4039087947882736) internal successors, (1293), 948 states have internal predecessors, (1293), 321 states have call successors, (321), 115 states have call predecessors, (321), 107 states have return successors, (314), 304 states have call predecessors, (314), 314 states have call successors, (314) [2022-12-14 10:30:34,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1350 states to 1350 states and 1928 transitions. [2022-12-14 10:30:34,578 INFO L78 Accepts]: Start accepts. Automaton has 1350 states and 1928 transitions. Word has length 47 [2022-12-14 10:30:34,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:30:34,578 INFO L495 AbstractCegarLoop]: Abstraction has 1350 states and 1928 transitions. [2022-12-14 10:30:34,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-14 10:30:34,578 INFO L276 IsEmpty]: Start isEmpty. Operand 1350 states and 1928 transitions. [2022-12-14 10:30:34,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-12-14 10:30:34,580 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:30:34,580 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:30:34,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 10:30:34,580 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:30:34,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:30:34,580 INFO L85 PathProgramCache]: Analyzing trace with hash -1682720140, now seen corresponding path program 1 times [2022-12-14 10:30:34,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:30:34,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924555036] [2022-12-14 10:30:34,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:30:34,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:30:34,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:30:35,377 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 10:30:35,377 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:30:35,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924555036] [2022-12-14 10:30:35,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924555036] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:30:35,377 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:30:35,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 10:30:35,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006819929] [2022-12-14 10:30:35,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:30:35,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 10:30:35,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:30:35,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 10:30:35,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:30:35,379 INFO L87 Difference]: Start difference. First operand 1350 states and 1928 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-14 10:30:36,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:30:36,116 INFO L93 Difference]: Finished difference Result 2419 states and 3439 transitions. [2022-12-14 10:30:36,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 10:30:36,117 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 51 [2022-12-14 10:30:36,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:30:36,121 INFO L225 Difference]: With dead ends: 2419 [2022-12-14 10:30:36,121 INFO L226 Difference]: Without dead ends: 1357 [2022-12-14 10:30:36,124 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-14 10:30:36,125 INFO L413 NwaCegarLoop]: 382 mSDtfsCounter, 28 mSDsluCounter, 1120 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 1502 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-14 10:30:36,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 1502 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-14 10:30:36,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1357 states. [2022-12-14 10:30:36,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1357 to 1343. [2022-12-14 10:30:36,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1343 states, 916 states have (on average 1.4006550218340612) internal successors, (1283), 943 states have internal predecessors, (1283), 320 states have call successors, (320), 114 states have call predecessors, (320), 106 states have return successors, (313), 303 states have call predecessors, (313), 313 states have call successors, (313) [2022-12-14 10:30:36,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1343 states to 1343 states and 1916 transitions. [2022-12-14 10:30:36,172 INFO L78 Accepts]: Start accepts. Automaton has 1343 states and 1916 transitions. Word has length 51 [2022-12-14 10:30:36,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:30:36,172 INFO L495 AbstractCegarLoop]: Abstraction has 1343 states and 1916 transitions. [2022-12-14 10:30:36,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-14 10:30:36,172 INFO L276 IsEmpty]: Start isEmpty. Operand 1343 states and 1916 transitions. [2022-12-14 10:30:36,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-12-14 10:30:36,173 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:30:36,173 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:30:36,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 10:30:36,174 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:30:36,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:30:36,174 INFO L85 PathProgramCache]: Analyzing trace with hash -1851032516, now seen corresponding path program 1 times [2022-12-14 10:30:36,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:30:36,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243389631] [2022-12-14 10:30:36,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:30:36,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:30:36,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:30:37,291 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-12-14 10:30:37,291 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:30:37,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243389631] [2022-12-14 10:30:37,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243389631] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:30:37,291 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:30:37,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 10:30:37,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851581267] [2022-12-14 10:30:37,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:30:37,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 10:30:37,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:30:37,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 10:30:37,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 10:30:37,292 INFO L87 Difference]: Start difference. First operand 1343 states and 1916 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-14 10:30:38,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:30:38,305 INFO L93 Difference]: Finished difference Result 2928 states and 4162 transitions. [2022-12-14 10:30:38,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 10:30:38,306 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 59 [2022-12-14 10:30:38,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:30:38,312 INFO L225 Difference]: With dead ends: 2928 [2022-12-14 10:30:38,312 INFO L226 Difference]: Without dead ends: 1882 [2022-12-14 10:30:38,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:30:38,315 INFO L413 NwaCegarLoop]: 691 mSDtfsCounter, 635 mSDsluCounter, 1033 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 657 SdHoareTripleChecker+Valid, 1724 SdHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 10:30:38,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [657 Valid, 1724 Invalid, 487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 10:30:38,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1882 states. [2022-12-14 10:30:38,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1882 to 1750. [2022-12-14 10:30:38,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1750 states, 1199 states have (on average 1.4036697247706422) internal successors, (1683), 1232 states have internal predecessors, (1683), 413 states have call successors, (413), 147 states have call predecessors, (413), 137 states have return successors, (406), 394 states have call predecessors, (406), 406 states have call successors, (406) [2022-12-14 10:30:38,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1750 states to 1750 states and 2502 transitions. [2022-12-14 10:30:38,378 INFO L78 Accepts]: Start accepts. Automaton has 1750 states and 2502 transitions. Word has length 59 [2022-12-14 10:30:38,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:30:38,378 INFO L495 AbstractCegarLoop]: Abstraction has 1750 states and 2502 transitions. [2022-12-14 10:30:38,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-14 10:30:38,378 INFO L276 IsEmpty]: Start isEmpty. Operand 1750 states and 2502 transitions. [2022-12-14 10:30:38,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-12-14 10:30:38,379 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:30:38,379 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:30:38,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 10:30:38,380 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:30:38,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:30:38,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1868588441, now seen corresponding path program 1 times [2022-12-14 10:30:38,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:30:38,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404591081] [2022-12-14 10:30:38,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:30:38,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:30:38,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:30:38,919 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-12-14 10:30:38,919 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:30:38,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404591081] [2022-12-14 10:30:38,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404591081] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:30:38,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:30:38,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:30:38,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270080889] [2022-12-14 10:30:38,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:30:38,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:30:38,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:30:38,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:30:38,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:30:38,921 INFO L87 Difference]: Start difference. First operand 1750 states and 2502 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-14 10:30:39,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:30:39,607 INFO L93 Difference]: Finished difference Result 3596 states and 5124 transitions. [2022-12-14 10:30:39,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:30:39,607 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 74 [2022-12-14 10:30:39,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:30:39,615 INFO L225 Difference]: With dead ends: 3596 [2022-12-14 10:30:39,616 INFO L226 Difference]: Without dead ends: 1847 [2022-12-14 10:30:39,620 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 10:30:39,620 INFO L413 NwaCegarLoop]: 448 mSDtfsCounter, 162 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 820 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-14 10:30:39,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 820 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-14 10:30:39,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1847 states. [2022-12-14 10:30:39,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1847 to 1599. [2022-12-14 10:30:39,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1599 states, 1118 states have (on average 1.4275491949910555) internal successors, (1596), 1150 states have internal predecessors, (1596), 355 states have call successors, (355), 138 states have call predecessors, (355), 125 states have return successors, (345), 328 states have call predecessors, (345), 345 states have call successors, (345) [2022-12-14 10:30:39,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1599 states to 1599 states and 2296 transitions. [2022-12-14 10:30:39,680 INFO L78 Accepts]: Start accepts. Automaton has 1599 states and 2296 transitions. Word has length 74 [2022-12-14 10:30:39,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:30:39,680 INFO L495 AbstractCegarLoop]: Abstraction has 1599 states and 2296 transitions. [2022-12-14 10:30:39,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-14 10:30:39,680 INFO L276 IsEmpty]: Start isEmpty. Operand 1599 states and 2296 transitions. [2022-12-14 10:30:39,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-12-14 10:30:39,681 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:30:39,681 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:30:39,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 10:30:39,681 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:30:39,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:30:39,681 INFO L85 PathProgramCache]: Analyzing trace with hash -226304088, now seen corresponding path program 1 times [2022-12-14 10:30:39,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:30:39,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213152242] [2022-12-14 10:30:39,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:30:39,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:30:39,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:30:41,644 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-12-14 10:30:41,644 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:30:41,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213152242] [2022-12-14 10:30:41,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213152242] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:30:41,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [464349482] [2022-12-14 10:30:41,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:30:41,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:30:41,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2304ee59-9726-4397-81e8-7c5ac15da02d/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:30:41,646 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2304ee59-9726-4397-81e8-7c5ac15da02d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:30:41,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2304ee59-9726-4397-81e8-7c5ac15da02d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 10:30:43,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:30:43,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 13353 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-14 10:30:43,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:30:43,367 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-14 10:30:43,367 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 10:30:43,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [464349482] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:30:43,367 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 10:30:43,368 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 10 [2022-12-14 10:30:43,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476309008] [2022-12-14 10:30:43,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:30:43,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 10:30:43,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:30:43,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 10:30:43,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-12-14 10:30:43,369 INFO L87 Difference]: Start difference. First operand 1599 states and 2296 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 3 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-12-14 10:30:45,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:30:45,204 INFO L93 Difference]: Finished difference Result 3815 states and 5591 transitions. [2022-12-14 10:30:45,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 10:30:45,205 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 3 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 71 [2022-12-14 10:30:45,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:30:45,215 INFO L225 Difference]: With dead ends: 3815 [2022-12-14 10:30:45,215 INFO L226 Difference]: Without dead ends: 2228 [2022-12-14 10:30:45,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2022-12-14 10:30:45,219 INFO L413 NwaCegarLoop]: 538 mSDtfsCounter, 419 mSDsluCounter, 2088 mSDsCounter, 0 mSdLazyCounter, 703 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 431 SdHoareTripleChecker+Valid, 2626 SdHoareTripleChecker+Invalid, 805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 703 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-12-14 10:30:45,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [431 Valid, 2626 Invalid, 805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 703 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-12-14 10:30:45,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2228 states. [2022-12-14 10:30:45,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2228 to 1605. [2022-12-14 10:30:45,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1605 states, 1124 states have (on average 1.4261565836298933) internal successors, (1603), 1156 states have internal predecessors, (1603), 355 states have call successors, (355), 138 states have call predecessors, (355), 125 states have return successors, (345), 328 states have call predecessors, (345), 345 states have call successors, (345) [2022-12-14 10:30:45,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1605 states to 1605 states and 2303 transitions. [2022-12-14 10:30:45,307 INFO L78 Accepts]: Start accepts. Automaton has 1605 states and 2303 transitions. Word has length 71 [2022-12-14 10:30:45,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:30:45,307 INFO L495 AbstractCegarLoop]: Abstraction has 1605 states and 2303 transitions. [2022-12-14 10:30:45,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 3 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-12-14 10:30:45,307 INFO L276 IsEmpty]: Start isEmpty. Operand 1605 states and 2303 transitions. [2022-12-14 10:30:45,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-12-14 10:30:45,308 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:30:45,309 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:30:45,335 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2304ee59-9726-4397-81e8-7c5ac15da02d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 10:30:45,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2304ee59-9726-4397-81e8-7c5ac15da02d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-12-14 10:30:45,509 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:30:45,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:30:45,510 INFO L85 PathProgramCache]: Analyzing trace with hash 306852577, now seen corresponding path program 1 times [2022-12-14 10:30:45,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:30:45,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489173909] [2022-12-14 10:30:45,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:30:45,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:30:45,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:30:47,230 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 10:30:47,230 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:30:47,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489173909] [2022-12-14 10:30:47,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489173909] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:30:47,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1262350142] [2022-12-14 10:30:47,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:30:47,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:30:47,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2304ee59-9726-4397-81e8-7c5ac15da02d/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:30:47,232 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2304ee59-9726-4397-81e8-7c5ac15da02d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:30:47,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2304ee59-9726-4397-81e8-7c5ac15da02d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 10:30:48,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:30:48,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 13422 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-14 10:30:48,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:30:52,167 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-14 10:30:52,167 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 10:30:54,525 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 10:30:54,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1262350142] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 10:30:54,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [819568263] [2022-12-14 10:30:54,544 INFO L159 IcfgInterpreter]: Started Sifa with 65 locations of interest [2022-12-14 10:30:54,544 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 10:30:54,546 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 10:30:54,550 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 10:30:54,550 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs