./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--md--md-cluster.ko-entry_point.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_e69f226e-9232-4741-8365-3a113ebd7ec0/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69f226e-9232-4741-8365-3a113ebd7ec0/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_e69f226e-9232-4741-8365-3a113ebd7ec0/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69f226e-9232-4741-8365-3a113ebd7ec0/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--md--md-cluster.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69f226e-9232-4741-8365-3a113ebd7ec0/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_e69f226e-9232-4741-8365-3a113ebd7ec0/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 03d5d1a576959110e79c00ca2825754bce7439905d85699b470a90adbbee10ad --- 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 15:13:42,871 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 15:13:42,872 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 15:13:42,885 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 15:13:42,885 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 15:13:42,886 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 15:13:42,887 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 15:13:42,888 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 15:13:42,889 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 15:13:42,889 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 15:13:42,890 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 15:13:42,891 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 15:13:42,891 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 15:13:42,891 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 15:13:42,892 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 15:13:42,893 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 15:13:42,893 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 15:13:42,894 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 15:13:42,895 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 15:13:42,896 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 15:13:42,897 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 15:13:42,898 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 15:13:42,899 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 15:13:42,899 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 15:13:42,901 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 15:13:42,902 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 15:13:42,902 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 15:13:42,902 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 15:13:42,903 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 15:13:42,903 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 15:13:42,903 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 15:13:42,904 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 15:13:42,904 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 15:13:42,905 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 15:13:42,906 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 15:13:42,906 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 15:13:42,906 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 15:13:42,906 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 15:13:42,907 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 15:13:42,907 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 15:13:42,908 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 15:13:42,908 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69f226e-9232-4741-8365-3a113ebd7ec0/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 15:13:42,922 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 15:13:42,922 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 15:13:42,923 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 15:13:42,923 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 15:13:42,923 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 15:13:42,923 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 15:13:42,924 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 15:13:42,924 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 15:13:42,924 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 15:13:42,924 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 15:13:42,924 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 15:13:42,924 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 15:13:42,924 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 15:13:42,925 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 15:13:42,925 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 15:13:42,925 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 15:13:42,925 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 15:13:42,925 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 15:13:42,926 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 15:13:42,926 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 15:13:42,926 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 15:13:42,926 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 15:13:42,926 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 15:13:42,927 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 15:13:42,927 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 15:13:42,927 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 15:13:42,927 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 15:13:42,927 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 15:13:42,927 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 15:13:42,927 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:13:42,928 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 15:13:42,928 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 15:13:42,928 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 15:13:42,928 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 15:13:42,928 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 15:13:42,928 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 15:13:42,928 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 15:13:42,929 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 15:13:42,929 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_e69f226e-9232-4741-8365-3a113ebd7ec0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69f226e-9232-4741-8365-3a113ebd7ec0/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 03d5d1a576959110e79c00ca2825754bce7439905d85699b470a90adbbee10ad [2022-12-14 15:13:43,098 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 15:13:43,115 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 15:13:43,116 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 15:13:43,117 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 15:13:43,118 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 15:13:43,118 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69f226e-9232-4741-8365-3a113ebd7ec0/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--md--md-cluster.ko-entry_point.cil.out.i [2022-12-14 15:13:45,616 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 15:13:45,968 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 15:13:45,968 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69f226e-9232-4741-8365-3a113ebd7ec0/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--md--md-cluster.ko-entry_point.cil.out.i [2022-12-14 15:13:45,992 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69f226e-9232-4741-8365-3a113ebd7ec0/bin/utaipan-gh47qXpMRh/data/1d9b7ffc4/b69238baec784838a4796c9c270c1e2f/FLAG202cdca3e [2022-12-14 15:13:46,006 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69f226e-9232-4741-8365-3a113ebd7ec0/bin/utaipan-gh47qXpMRh/data/1d9b7ffc4/b69238baec784838a4796c9c270c1e2f [2022-12-14 15:13:46,009 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 15:13:46,010 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 15:13:46,011 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 15:13:46,011 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 15:13:46,015 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 15:13:46,015 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:13:46" (1/1) ... [2022-12-14 15:13:46,016 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@472c342e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:13:46, skipping insertion in model container [2022-12-14 15:13:46,016 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:13:46" (1/1) ... [2022-12-14 15:13:46,024 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 15:13:46,111 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 15:13:46,474 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-12-14 15:13:46,500 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irq [2022-12-14 15:13:46,502 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irq [2022-12-14 15:13:46,509 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-12-14 15:13:46,533 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:13:46,607 WARN L623 FunctionHandler]: Unknown extern function complete [2022-12-14 15:13:46,610 WARN L623 FunctionHandler]: Unknown extern function dlm_lock [2022-12-14 15:13:46,611 WARN L623 FunctionHandler]: Unknown extern function wait_for_completion [2022-12-14 15:13:46,618 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:46,618 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 15:13:46,620 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:46,621 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:46,622 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 15:13:46,622 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 15:13:46,622 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 15:13:46,625 WARN L623 FunctionHandler]: Unknown extern function dlm_unlock [2022-12-14 15:13:46,626 WARN L623 FunctionHandler]: Unknown extern function wait_for_completion [2022-12-14 15:13:46,626 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 15:13:46,627 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 15:13:46,627 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 15:13:46,630 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 15:13:46,630 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 15:13:46,642 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 15:13:46,642 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 15:13:46,645 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:46,645 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:46,646 WARN L623 FunctionHandler]: Unknown extern function bitmap_copy_from_slot [2022-12-14 15:13:46,647 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:46,648 WARN L623 FunctionHandler]: Unknown extern function md_check_recovery [2022-12-14 15:13:46,653 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:46,655 WARN L623 FunctionHandler]: Unknown extern function md_register_thread [2022-12-14 15:13:46,656 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:46,656 WARN L623 FunctionHandler]: Unknown extern function md_wakeup_thread [2022-12-14 15:13:46,660 WARN L623 FunctionHandler]: Unknown extern function complete [2022-12-14 15:13:46,663 WARN L623 FunctionHandler]: Unknown extern function md_wakeup_thread [2022-12-14 15:13:46,667 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:46,668 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 15:13:46,668 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 15:13:46,681 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:46,682 WARN L623 FunctionHandler]: Unknown extern function kobject_uevent_env [2022-12-14 15:13:46,682 WARN L623 FunctionHandler]: Unknown extern function wait_for_completion_timeout [2022-12-14 15:13:46,685 WARN L623 FunctionHandler]: Unknown extern function md_reload_sb [2022-12-14 15:13:46,688 WARN L623 FunctionHandler]: Unknown extern function md_find_rdev_nr_rcu [2022-12-14 15:13:46,688 WARN L623 FunctionHandler]: Unknown extern function md_kick_rdev_from_array [2022-12-14 15:13:46,689 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:46,691 WARN L623 FunctionHandler]: Unknown extern function md_find_rdev_nr_rcu [2022-12-14 15:13:46,692 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:46,692 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:46,695 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:46,696 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:46,697 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:46,697 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:46,697 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:46,698 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:46,701 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:46,705 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:46,710 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:46,711 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:46,711 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:46,712 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:46,720 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:46,726 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-14 15:13:46,727 WARN L623 FunctionHandler]: Unknown extern function dlm_new_lockspace [2022-12-14 15:13:46,727 WARN L623 FunctionHandler]: Unknown extern function wait_for_completion [2022-12-14 15:13:46,728 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:46,729 WARN L623 FunctionHandler]: Unknown extern function md_register_thread [2022-12-14 15:13:46,730 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:46,733 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:46,734 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:46,734 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:46,736 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:46,737 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 15:13:46,738 WARN L623 FunctionHandler]: Unknown extern function dlm_release_lockspace [2022-12-14 15:13:46,738 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 15:13:46,742 WARN L623 FunctionHandler]: Unknown extern function md_unregister_thread [2022-12-14 15:13:46,742 WARN L623 FunctionHandler]: Unknown extern function md_unregister_thread [2022-12-14 15:13:46,743 WARN L623 FunctionHandler]: Unknown extern function dlm_release_lockspace [2022-12-14 15:13:46,760 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:46,764 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:46,768 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:46,781 WARN L623 FunctionHandler]: Unknown extern function md_update_sb [2022-12-14 15:13:46,784 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:46,784 WARN L623 FunctionHandler]: Unknown extern function complete [2022-12-14 15:13:46,790 WARN L623 FunctionHandler]: Unknown extern function bitmap_copy_from_slot [2022-12-14 15:13:46,790 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:46,794 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:46,794 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:46,795 WARN L623 FunctionHandler]: Unknown extern function register_md_cluster_operations [2022-12-14 15:13:46,797 WARN L623 FunctionHandler]: Unknown extern function unregister_md_cluster_operations [2022-12-14 15:13:46,804 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 15:13:46,815 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_e69f226e-9232-4741-8365-3a113ebd7ec0/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--md--md-cluster.ko-entry_point.cil.out.i[164960,164973] [2022-12-14 15:13:46,838 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:13:46,839 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:13:46,843 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:13:46,855 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 15:13:46,923 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-12-14 15:13:46,924 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irq [2022-12-14 15:13:46,924 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irq [2022-12-14 15:13:46,925 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-12-14 15:13:46,926 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:13:46,933 WARN L623 FunctionHandler]: Unknown extern function complete [2022-12-14 15:13:46,933 WARN L623 FunctionHandler]: Unknown extern function dlm_lock [2022-12-14 15:13:46,934 WARN L623 FunctionHandler]: Unknown extern function wait_for_completion [2022-12-14 15:13:46,941 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:46,942 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 15:13:46,942 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:46,943 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:46,944 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 15:13:46,944 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 15:13:46,945 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 15:13:46,945 WARN L623 FunctionHandler]: Unknown extern function dlm_unlock [2022-12-14 15:13:46,946 WARN L623 FunctionHandler]: Unknown extern function wait_for_completion [2022-12-14 15:13:46,946 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 15:13:46,946 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 15:13:46,946 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 15:13:46,947 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 15:13:46,947 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 15:13:46,956 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 15:13:46,956 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 15:13:46,957 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:46,957 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:46,958 WARN L623 FunctionHandler]: Unknown extern function bitmap_copy_from_slot [2022-12-14 15:13:46,958 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:46,959 WARN L623 FunctionHandler]: Unknown extern function md_check_recovery [2022-12-14 15:13:46,962 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:46,963 WARN L623 FunctionHandler]: Unknown extern function md_register_thread [2022-12-14 15:13:46,964 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:46,965 WARN L623 FunctionHandler]: Unknown extern function md_wakeup_thread [2022-12-14 15:13:46,968 WARN L623 FunctionHandler]: Unknown extern function complete [2022-12-14 15:13:46,972 WARN L623 FunctionHandler]: Unknown extern function md_wakeup_thread [2022-12-14 15:13:46,972 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:46,973 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 15:13:46,973 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 15:13:46,979 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:46,980 WARN L623 FunctionHandler]: Unknown extern function kobject_uevent_env [2022-12-14 15:13:46,980 WARN L623 FunctionHandler]: Unknown extern function wait_for_completion_timeout [2022-12-14 15:13:46,983 WARN L623 FunctionHandler]: Unknown extern function md_reload_sb [2022-12-14 15:13:46,984 WARN L623 FunctionHandler]: Unknown extern function md_find_rdev_nr_rcu [2022-12-14 15:13:46,984 WARN L623 FunctionHandler]: Unknown extern function md_kick_rdev_from_array [2022-12-14 15:13:46,984 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:46,985 WARN L623 FunctionHandler]: Unknown extern function md_find_rdev_nr_rcu [2022-12-14 15:13:46,986 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:46,986 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:46,987 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:46,987 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:46,990 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:46,991 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:46,992 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:46,992 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:46,996 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:46,997 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:46,998 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:46,999 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:46,999 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:47,000 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:47,015 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:47,017 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-14 15:13:47,021 WARN L623 FunctionHandler]: Unknown extern function dlm_new_lockspace [2022-12-14 15:13:47,022 WARN L623 FunctionHandler]: Unknown extern function wait_for_completion [2022-12-14 15:13:47,022 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:47,023 WARN L623 FunctionHandler]: Unknown extern function md_register_thread [2022-12-14 15:13:47,023 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:47,026 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:47,026 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:47,026 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:47,027 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:47,028 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 15:13:47,029 WARN L623 FunctionHandler]: Unknown extern function dlm_release_lockspace [2022-12-14 15:13:47,032 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 15:13:47,037 WARN L623 FunctionHandler]: Unknown extern function md_unregister_thread [2022-12-14 15:13:47,037 WARN L623 FunctionHandler]: Unknown extern function md_unregister_thread [2022-12-14 15:13:47,038 WARN L623 FunctionHandler]: Unknown extern function dlm_release_lockspace [2022-12-14 15:13:47,063 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:47,064 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:47,065 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:47,080 WARN L623 FunctionHandler]: Unknown extern function md_update_sb [2022-12-14 15:13:47,084 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:47,085 WARN L623 FunctionHandler]: Unknown extern function complete [2022-12-14 15:13:47,105 WARN L623 FunctionHandler]: Unknown extern function bitmap_copy_from_slot [2022-12-14 15:13:47,105 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:47,107 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:47,107 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:13:47,108 WARN L623 FunctionHandler]: Unknown extern function register_md_cluster_operations [2022-12-14 15:13:47,108 WARN L623 FunctionHandler]: Unknown extern function unregister_md_cluster_operations [2022-12-14 15:13:47,110 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 15:13:47,116 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_e69f226e-9232-4741-8365-3a113ebd7ec0/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--md--md-cluster.ko-entry_point.cil.out.i[164960,164973] [2022-12-14 15:13:47,122 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:13:47,122 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:13:47,124 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:13:47,189 INFO L208 MainTranslator]: Completed translation [2022-12-14 15:13:47,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:13:47 WrapperNode [2022-12-14 15:13:47,190 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 15:13:47,190 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 15:13:47,191 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 15:13:47,191 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 15:13:47,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:13:47" (1/1) ... [2022-12-14 15:13:47,220 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:13:47" (1/1) ... [2022-12-14 15:13:47,268 INFO L138 Inliner]: procedures = 151, calls = 793, calls flagged for inlining = 67, calls inlined = 53, statements flattened = 1744 [2022-12-14 15:13:47,269 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 15:13:47,269 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 15:13:47,269 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 15:13:47,269 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 15:13:47,276 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:13:47" (1/1) ... [2022-12-14 15:13:47,276 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:13:47" (1/1) ... [2022-12-14 15:13:47,285 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:13:47" (1/1) ... [2022-12-14 15:13:47,285 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:13:47" (1/1) ... [2022-12-14 15:13:47,316 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:13:47" (1/1) ... [2022-12-14 15:13:47,321 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:13:47" (1/1) ... [2022-12-14 15:13:47,334 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:13:47" (1/1) ... [2022-12-14 15:13:47,338 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:13:47" (1/1) ... [2022-12-14 15:13:47,348 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 15:13:47,349 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 15:13:47,349 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 15:13:47,349 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 15:13:47,350 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:13:47" (1/1) ... [2022-12-14 15:13:47,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:13:47,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69f226e-9232-4741-8365-3a113ebd7ec0/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:13:47,373 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69f226e-9232-4741-8365-3a113ebd7ec0/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 15:13:47,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69f226e-9232-4741-8365-3a113ebd7ec0/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 15:13:47,406 INFO L130 BoogieDeclarations]: Found specification of procedure dlm_lock_sync [2022-12-14 15:13:47,406 INFO L138 BoogieDeclarations]: Found implementation of procedure dlm_lock_sync [2022-12-14 15:13:47,406 INFO L130 BoogieDeclarations]: Found specification of procedure lockres_free [2022-12-14 15:13:47,407 INFO L138 BoogieDeclarations]: Found implementation of procedure lockres_free [2022-12-14 15:13:47,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 15:13:47,407 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-12-14 15:13:47,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-14 15:13:47,407 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-12-14 15:13:47,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-12-14 15:13:47,407 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 15:13:47,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-12-14 15:13:47,407 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-12-14 15:13:47,407 INFO L130 BoogieDeclarations]: Found specification of procedure dlm_release_lockspace [2022-12-14 15:13:47,407 INFO L138 BoogieDeclarations]: Found implementation of procedure dlm_release_lockspace [2022-12-14 15:13:47,407 INFO L130 BoogieDeclarations]: Found specification of procedure lock_comm [2022-12-14 15:13:47,407 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_comm [2022-12-14 15:13:47,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-12-14 15:13:47,407 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-12-14 15:13:47,407 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-14 15:13:47,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-14 15:13:47,407 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-12-14 15:13:47,408 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-12-14 15:13:47,408 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2022-12-14 15:13:47,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2022-12-14 15:13:47,408 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-12-14 15:13:47,408 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-12-14 15:13:47,408 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2022-12-14 15:13:47,408 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2022-12-14 15:13:47,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 15:13:47,408 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-12-14 15:13:47,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-12-14 15:13:47,408 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-12-14 15:13:47,408 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-12-14 15:13:47,408 INFO L130 BoogieDeclarations]: Found specification of procedure md_wakeup_thread [2022-12-14 15:13:47,408 INFO L138 BoogieDeclarations]: Found implementation of procedure md_wakeup_thread [2022-12-14 15:13:47,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-14 15:13:47,408 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-14 15:13:47,409 INFO L130 BoogieDeclarations]: Found specification of procedure bitmap_copy_from_slot [2022-12-14 15:13:47,409 INFO L138 BoogieDeclarations]: Found implementation of procedure bitmap_copy_from_slot [2022-12-14 15:13:47,409 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-12-14 15:13:47,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-12-14 15:13:47,409 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-14 15:13:47,409 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-14 15:13:47,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 15:13:47,409 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-12-14 15:13:47,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-12-14 15:13:47,409 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2022-12-14 15:13:47,409 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2022-12-14 15:13:47,409 INFO L130 BoogieDeclarations]: Found specification of procedure md_register_thread [2022-12-14 15:13:47,409 INFO L138 BoogieDeclarations]: Found implementation of procedure md_register_thread [2022-12-14 15:13:47,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 15:13:47,409 INFO L130 BoogieDeclarations]: Found specification of procedure md_unregister_thread [2022-12-14 15:13:47,409 INFO L138 BoogieDeclarations]: Found implementation of procedure md_unregister_thread [2022-12-14 15:13:47,409 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2022-12-14 15:13:47,409 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2022-12-14 15:13:47,410 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 15:13:47,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 15:13:47,410 INFO L130 BoogieDeclarations]: Found specification of procedure resync_send [2022-12-14 15:13:47,410 INFO L138 BoogieDeclarations]: Found implementation of procedure resync_send [2022-12-14 15:13:47,410 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-12-14 15:13:47,410 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-12-14 15:13:47,410 INFO L130 BoogieDeclarations]: Found specification of procedure lockres_init [2022-12-14 15:13:47,410 INFO L138 BoogieDeclarations]: Found implementation of procedure lockres_init [2022-12-14 15:13:47,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 15:13:47,410 INFO L130 BoogieDeclarations]: Found specification of procedure unlock_comm [2022-12-14 15:13:47,410 INFO L138 BoogieDeclarations]: Found implementation of procedure unlock_comm [2022-12-14 15:13:47,411 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-12-14 15:13:47,411 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-12-14 15:13:47,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 15:13:47,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 15:13:47,411 INFO L130 BoogieDeclarations]: Found specification of procedure resync_info_update [2022-12-14 15:13:47,411 INFO L138 BoogieDeclarations]: Found implementation of procedure resync_info_update [2022-12-14 15:13:47,411 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-12-14 15:13:47,411 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-12-14 15:13:47,411 INFO L130 BoogieDeclarations]: Found specification of procedure __sendmsg [2022-12-14 15:13:47,411 INFO L138 BoogieDeclarations]: Found implementation of procedure __sendmsg [2022-12-14 15:13:47,412 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-12-14 15:13:47,412 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-12-14 15:13:47,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 15:13:47,412 INFO L130 BoogieDeclarations]: Found specification of procedure pretty_uuid [2022-12-14 15:13:47,412 INFO L138 BoogieDeclarations]: Found implementation of procedure pretty_uuid [2022-12-14 15:13:47,412 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-12-14 15:13:47,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 15:13:47,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 15:13:47,412 INFO L130 BoogieDeclarations]: Found specification of procedure sendmsg [2022-12-14 15:13:47,412 INFO L138 BoogieDeclarations]: Found implementation of procedure sendmsg [2022-12-14 15:13:47,413 INFO L130 BoogieDeclarations]: Found specification of procedure dlm_unlock_sync [2022-12-14 15:13:47,413 INFO L138 BoogieDeclarations]: Found implementation of procedure dlm_unlock_sync [2022-12-14 15:13:47,711 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 15:13:47,714 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 15:13:47,837 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-12-14 15:13:48,711 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 15:13:48,868 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 15:13:48,868 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-14 15:13:48,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:13:48 BoogieIcfgContainer [2022-12-14 15:13:48,872 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 15:13:48,874 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 15:13:48,874 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 15:13:48,876 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 15:13:48,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 03:13:46" (1/3) ... [2022-12-14 15:13:48,877 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3714b38d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:13:48, skipping insertion in model container [2022-12-14 15:13:48,877 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:13:47" (2/3) ... [2022-12-14 15:13:48,877 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3714b38d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:13:48, skipping insertion in model container [2022-12-14 15:13:48,877 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:13:48" (3/3) ... [2022-12-14 15:13:48,878 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--md--md-cluster.ko-entry_point.cil.out.i [2022-12-14 15:13:48,893 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 15:13:48,893 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 15:13:48,937 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 15:13:48,942 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;@c8af622, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 15:13:48,942 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 15:13:48,946 INFO L276 IsEmpty]: Start isEmpty. Operand has 468 states, 299 states have (on average 1.3645484949832776) internal successors, (408), 310 states have internal predecessors, (408), 132 states have call successors, (132), 36 states have call predecessors, (132), 35 states have return successors, (128), 127 states have call predecessors, (128), 128 states have call successors, (128) [2022-12-14 15:13:48,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-12-14 15:13:48,956 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:13:48,956 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 3, 3, 3, 3, 3, 3, 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] [2022-12-14 15:13:48,957 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:13:48,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:13:48,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1293035551, now seen corresponding path program 1 times [2022-12-14 15:13:48,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:13:48,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639017041] [2022-12-14 15:13:48,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:13:48,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:13:49,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:13:49,441 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 415 trivial. 0 not checked. [2022-12-14 15:13:49,441 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:13:49,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639017041] [2022-12-14 15:13:49,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639017041] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:13:49,442 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:13:49,442 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:13:49,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52821258] [2022-12-14 15:13:49,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:13:49,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:13:49,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:13:49,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:13:49,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:13:49,474 INFO L87 Difference]: Start difference. First operand has 468 states, 299 states have (on average 1.3645484949832776) internal successors, (408), 310 states have internal predecessors, (408), 132 states have call successors, (132), 36 states have call predecessors, (132), 35 states have return successors, (128), 127 states have call predecessors, (128), 128 states have call successors, (128) Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-12-14 15:13:50,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:13:50,143 INFO L93 Difference]: Finished difference Result 1316 states and 1887 transitions. [2022-12-14 15:13:50,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:13:50,145 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 146 [2022-12-14 15:13:50,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:13:50,163 INFO L225 Difference]: With dead ends: 1316 [2022-12-14 15:13:50,163 INFO L226 Difference]: Without dead ends: 869 [2022-12-14 15:13:50,169 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 15:13:50,171 INFO L413 NwaCegarLoop]: 703 mSDtfsCounter, 586 mSDsluCounter, 588 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 586 SdHoareTripleChecker+Valid, 1291 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-14 15:13:50,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [586 Valid, 1291 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-14 15:13:50,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 869 states. [2022-12-14 15:13:50,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 869 to 866. [2022-12-14 15:13:50,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 866 states, 566 states have (on average 1.3568904593639577) internal successors, (768), 575 states have internal predecessors, (768), 234 states have call successors, (234), 66 states have call predecessors, (234), 65 states have return successors, (232), 230 states have call predecessors, (232), 232 states have call successors, (232) [2022-12-14 15:13:50,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 866 states to 866 states and 1234 transitions. [2022-12-14 15:13:50,260 INFO L78 Accepts]: Start accepts. Automaton has 866 states and 1234 transitions. Word has length 146 [2022-12-14 15:13:50,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:13:50,261 INFO L495 AbstractCegarLoop]: Abstraction has 866 states and 1234 transitions. [2022-12-14 15:13:50,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-12-14 15:13:50,261 INFO L276 IsEmpty]: Start isEmpty. Operand 866 states and 1234 transitions. [2022-12-14 15:13:50,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-12-14 15:13:50,263 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:13:50,264 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 3, 3, 3, 3, 3, 3, 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] [2022-12-14 15:13:50,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 15:13:50,264 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:13:50,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:13:50,264 INFO L85 PathProgramCache]: Analyzing trace with hash 106237151, now seen corresponding path program 1 times [2022-12-14 15:13:50,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:13:50,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91590753] [2022-12-14 15:13:50,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:13:50,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:13:50,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:13:50,474 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 415 trivial. 0 not checked. [2022-12-14 15:13:50,475 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:13:50,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91590753] [2022-12-14 15:13:50,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91590753] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:13:50,475 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:13:50,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:13:50,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968439653] [2022-12-14 15:13:50,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:13:50,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:13:50,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:13:50,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:13:50,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:13:50,478 INFO L87 Difference]: Start difference. First operand 866 states and 1234 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-12-14 15:13:50,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:13:50,714 INFO L93 Difference]: Finished difference Result 1698 states and 2419 transitions. [2022-12-14 15:13:50,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:13:50,714 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 149 [2022-12-14 15:13:50,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:13:50,719 INFO L225 Difference]: With dead ends: 1698 [2022-12-14 15:13:50,719 INFO L226 Difference]: Without dead ends: 865 [2022-12-14 15:13:50,722 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 15:13:50,723 INFO L413 NwaCegarLoop]: 582 mSDtfsCounter, 650 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 650 SdHoareTripleChecker+Valid, 582 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 15:13:50,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [650 Valid, 582 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 15:13:50,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2022-12-14 15:13:50,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 865. [2022-12-14 15:13:50,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 565 states have (on average 1.352212389380531) internal successors, (764), 574 states have internal predecessors, (764), 234 states have call successors, (234), 66 states have call predecessors, (234), 65 states have return successors, (232), 230 states have call predecessors, (232), 232 states have call successors, (232) [2022-12-14 15:13:50,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1230 transitions. [2022-12-14 15:13:50,763 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1230 transitions. Word has length 149 [2022-12-14 15:13:50,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:13:50,763 INFO L495 AbstractCegarLoop]: Abstraction has 865 states and 1230 transitions. [2022-12-14 15:13:50,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-12-14 15:13:50,763 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1230 transitions. [2022-12-14 15:13:50,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-12-14 15:13:50,767 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:13:50,767 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:13:50,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 15:13:50,767 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:13:50,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:13:50,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1663120359, now seen corresponding path program 1 times [2022-12-14 15:13:50,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:13:50,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329894188] [2022-12-14 15:13:50,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:13:50,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:13:50,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:13:50,965 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2022-12-14 15:13:50,965 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:13:50,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329894188] [2022-12-14 15:13:50,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329894188] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:13:50,966 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:13:50,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:13:50,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626672128] [2022-12-14 15:13:50,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:13:50,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:13:50,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:13:50,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:13:50,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:13:50,967 INFO L87 Difference]: Start difference. First operand 865 states and 1230 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-12-14 15:13:51,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:13:51,528 INFO L93 Difference]: Finished difference Result 1410 states and 1980 transitions. [2022-12-14 15:13:51,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:13:51,529 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 191 [2022-12-14 15:13:51,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:13:51,537 INFO L225 Difference]: With dead ends: 1410 [2022-12-14 15:13:51,537 INFO L226 Difference]: Without dead ends: 1405 [2022-12-14 15:13:51,538 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 15:13:51,539 INFO L413 NwaCegarLoop]: 662 mSDtfsCounter, 384 mSDsluCounter, 536 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 1198 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-14 15:13:51,540 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [384 Valid, 1198 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-14 15:13:51,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1405 states. [2022-12-14 15:13:51,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1405 to 1405. [2022-12-14 15:13:51,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1405 states, 926 states have (on average 1.3596112311015118) internal successors, (1259), 937 states have internal predecessors, (1259), 359 states have call successors, (359), 120 states have call predecessors, (359), 119 states have return successors, (357), 355 states have call predecessors, (357), 357 states have call successors, (357) [2022-12-14 15:13:51,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1405 states to 1405 states and 1975 transitions. [2022-12-14 15:13:51,613 INFO L78 Accepts]: Start accepts. Automaton has 1405 states and 1975 transitions. Word has length 191 [2022-12-14 15:13:51,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:13:51,613 INFO L495 AbstractCegarLoop]: Abstraction has 1405 states and 1975 transitions. [2022-12-14 15:13:51,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-12-14 15:13:51,613 INFO L276 IsEmpty]: Start isEmpty. Operand 1405 states and 1975 transitions. [2022-12-14 15:13:51,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-12-14 15:13:51,617 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:13:51,618 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:13:51,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 15:13:51,618 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:13:51,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:13:51,618 INFO L85 PathProgramCache]: Analyzing trace with hash 1141227852, now seen corresponding path program 1 times [2022-12-14 15:13:51,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:13:51,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922421728] [2022-12-14 15:13:51,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:13:51,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:13:51,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:13:52,433 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2022-12-14 15:13:52,433 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:13:52,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922421728] [2022-12-14 15:13:52,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922421728] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:13:52,433 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:13:52,433 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 15:13:52,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123833828] [2022-12-14 15:13:52,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:13:52,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 15:13:52,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:13:52,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 15:13:52,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 15:13:52,434 INFO L87 Difference]: Start difference. First operand 1405 states and 1975 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-12-14 15:13:53,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:13:53,552 INFO L93 Difference]: Finished difference Result 2265 states and 3232 transitions. [2022-12-14 15:13:53,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 15:13:53,552 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 207 [2022-12-14 15:13:53,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:13:53,560 INFO L225 Difference]: With dead ends: 2265 [2022-12-14 15:13:53,560 INFO L226 Difference]: Without dead ends: 2260 [2022-12-14 15:13:53,561 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 15:13:53,562 INFO L413 NwaCegarLoop]: 729 mSDtfsCounter, 845 mSDsluCounter, 574 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 922 SdHoareTripleChecker+Valid, 1303 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:13:53,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [922 Valid, 1303 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-14 15:13:53,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2260 states. [2022-12-14 15:13:53,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2260 to 1949. [2022-12-14 15:13:53,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1949 states, 1291 states have (on average 1.3632842757552286) internal successors, (1760), 1304 states have internal predecessors, (1760), 484 states have call successors, (484), 174 states have call predecessors, (484), 173 states have return successors, (482), 480 states have call predecessors, (482), 482 states have call successors, (482) [2022-12-14 15:13:53,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1949 states to 1949 states and 2726 transitions. [2022-12-14 15:13:53,647 INFO L78 Accepts]: Start accepts. Automaton has 1949 states and 2726 transitions. Word has length 207 [2022-12-14 15:13:53,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:13:53,647 INFO L495 AbstractCegarLoop]: Abstraction has 1949 states and 2726 transitions. [2022-12-14 15:13:53,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-12-14 15:13:53,648 INFO L276 IsEmpty]: Start isEmpty. Operand 1949 states and 2726 transitions. [2022-12-14 15:13:53,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-12-14 15:13:53,652 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:13:53,652 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:13:53,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 15:13:53,653 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:13:53,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:13:53,653 INFO L85 PathProgramCache]: Analyzing trace with hash 318399820, now seen corresponding path program 1 times [2022-12-14 15:13:53,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:13:53,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268268705] [2022-12-14 15:13:53,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:13:53,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:13:53,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:13:54,196 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 494 trivial. 0 not checked. [2022-12-14 15:13:54,196 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:13:54,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268268705] [2022-12-14 15:13:54,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268268705] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:13:54,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1441333854] [2022-12-14 15:13:54,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:13:54,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:13:54,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69f226e-9232-4741-8365-3a113ebd7ec0/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:13:54,198 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69f226e-9232-4741-8365-3a113ebd7ec0/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:13:54,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69f226e-9232-4741-8365-3a113ebd7ec0/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 15:13:54,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:13:54,823 INFO L263 TraceCheckSpWp]: Trace formula consists of 2126 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-14 15:13:54,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:13:54,905 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 221 proven. 0 refuted. 0 times theorem prover too weak. 323 trivial. 0 not checked. [2022-12-14 15:13:54,905 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 15:13:54,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1441333854] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:13:54,905 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 15:13:54,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 8 [2022-12-14 15:13:54,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96113898] [2022-12-14 15:13:54,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:13:54,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 15:13:54,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:13:54,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 15:13:54,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-14 15:13:54,907 INFO L87 Difference]: Start difference. First operand 1949 states and 2726 transitions. Second operand has 6 states, 4 states have (on average 19.0) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-12-14 15:13:55,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:13:55,781 INFO L93 Difference]: Finished difference Result 3904 states and 5483 transitions. [2022-12-14 15:13:55,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 15:13:55,782 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 19.0) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 218 [2022-12-14 15:13:55,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:13:55,789 INFO L225 Difference]: With dead ends: 3904 [2022-12-14 15:13:55,789 INFO L226 Difference]: Without dead ends: 1955 [2022-12-14 15:13:55,794 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-12-14 15:13:55,795 INFO L413 NwaCegarLoop]: 571 mSDtfsCounter, 3 mSDsluCounter, 2250 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2821 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 15:13:55,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2821 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-14 15:13:55,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1955 states. [2022-12-14 15:13:55,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1955 to 1955. [2022-12-14 15:13:55,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1955 states, 1297 states have (on average 1.361603700848111) internal successors, (1766), 1310 states have internal predecessors, (1766), 484 states have call successors, (484), 174 states have call predecessors, (484), 173 states have return successors, (482), 480 states have call predecessors, (482), 482 states have call successors, (482) [2022-12-14 15:13:55,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1955 states to 1955 states and 2732 transitions. [2022-12-14 15:13:55,869 INFO L78 Accepts]: Start accepts. Automaton has 1955 states and 2732 transitions. Word has length 218 [2022-12-14 15:13:55,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:13:55,869 INFO L495 AbstractCegarLoop]: Abstraction has 1955 states and 2732 transitions. [2022-12-14 15:13:55,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 19.0) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-12-14 15:13:55,870 INFO L276 IsEmpty]: Start isEmpty. Operand 1955 states and 2732 transitions. [2022-12-14 15:13:55,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2022-12-14 15:13:55,874 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:13:55,875 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:13:55,887 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69f226e-9232-4741-8365-3a113ebd7ec0/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 15:13:56,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69f226e-9232-4741-8365-3a113ebd7ec0/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:13:56,076 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:13:56,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:13:56,077 INFO L85 PathProgramCache]: Analyzing trace with hash -1124450675, now seen corresponding path program 1 times [2022-12-14 15:13:56,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:13:56,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193216857] [2022-12-14 15:13:56,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:13:56,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:13:56,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:13:56,815 INFO L134 CoverageAnalysis]: Checked inductivity of 720 backedges. 8 proven. 73 refuted. 0 times theorem prover too weak. 639 trivial. 0 not checked. [2022-12-14 15:13:56,815 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:13:56,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193216857] [2022-12-14 15:13:56,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193216857] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:13:56,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [462792136] [2022-12-14 15:13:56,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:13:56,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:13:56,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69f226e-9232-4741-8365-3a113ebd7ec0/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:13:56,817 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69f226e-9232-4741-8365-3a113ebd7ec0/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:13:56,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69f226e-9232-4741-8365-3a113ebd7ec0/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 15:13:57,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:13:57,499 INFO L263 TraceCheckSpWp]: Trace formula consists of 2291 conjuncts, 21 conjunts are in the unsatisfiable core [2022-12-14 15:13:57,504 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:13:57,554 INFO L134 CoverageAnalysis]: Checked inductivity of 720 backedges. 277 proven. 1 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2022-12-14 15:13:57,554 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:13:57,827 INFO L134 CoverageAnalysis]: Checked inductivity of 720 backedges. 8 proven. 73 refuted. 0 times theorem prover too weak. 639 trivial. 0 not checked. [2022-12-14 15:13:57,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [462792136] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:13:57,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1973268612] [2022-12-14 15:13:57,852 INFO L159 IcfgInterpreter]: Started Sifa with 92 locations of interest [2022-12-14 15:13:57,852 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 15:13:57,856 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 15:13:57,861 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 15:13:57,862 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 15:13:58,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:13:58,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:13:58,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:13:58,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:13:58,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:13:58,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:13:58,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:13:58,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:13:58,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:13:58,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:13:58,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:13:58,992 INFO L217 Elim1Store]: Index analysis took 543 ms [2022-12-14 15:15:09,398 WARN L233 SmtUtils]: Spent 1.17m on a formula simplification. DAG size of input: 3129 DAG size of output: 1180 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-12-14 15:15:09,407 INFO L321 Elim1Store]: treesize reduction 20731, result has 12.0 percent of original size [2022-12-14 15:15:09,410 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 72 select indices, 72 select index equivalence classes, 2578 disjoint index pairs (out of 2556 index pairs), introduced 72 new quantified variables, introduced 81 case distinctions, treesize of input 397 treesize of output 3060 [2022-12-14 15:15:12,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:13,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:14,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:15,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:16,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:17,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:17,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:18,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:19,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:19,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:19,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:19,906 INFO L217 Elim1Store]: Index analysis took 8624 ms [2022-12-14 15:17:33,260 WARN L233 SmtUtils]: Spent 2.22m on a formula simplification. DAG size of input: 4661 DAG size of output: 1880 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-12-14 15:17:33,265 INFO L321 Elim1Store]: treesize reduction 26723, result has 11.7 percent of original size [2022-12-14 15:17:33,267 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 84 select indices, 84 select index equivalence classes, 2650 disjoint index pairs (out of 3486 index pairs), introduced 84 new quantified variables, introduced 927 case distinctions, treesize of input 677 treesize of output 4017 [2022-12-14 15:17:54,617 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 15:17:54,620 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-12-14 15:17:54,626 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-12-14 15:18:00,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:18:00,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:18:00,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:18:00,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:18:00,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:18:00,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:18:00,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:18:00,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:18:00,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:18:00,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:18:00,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:18:00,404 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 83 select indices, 83 select index equivalence classes, 3414 disjoint index pairs (out of 3403 index pairs), introduced 83 new quantified variables, introduced 0 case distinctions, treesize of input 416 treesize of output 250 [2022-12-14 15:18:01,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:18:01,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:18:01,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:18:01,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:18:01,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:18:01,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:18:01,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:18:01,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:18:01,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:18:01,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:18:01,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:18:01,245 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 84 select indices, 84 select index equivalence classes, 3486 disjoint index pairs (out of 3486 index pairs), introduced 84 new quantified variables, introduced 0 case distinctions, treesize of input 421 treesize of output 253 [2022-12-14 15:18:21,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:18:21,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:18:21,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:18:21,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:18:21,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:18:21,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:18:21,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:18:21,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:18:21,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:18:21,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:18:21,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:18:21,833 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 83 select indices, 83 select index equivalence classes, 3414 disjoint index pairs (out of 3403 index pairs), introduced 83 new quantified variables, introduced 0 case distinctions, treesize of input 416 treesize of output 250 [2022-12-14 15:18:23,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:18:23,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:18:23,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:18:23,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:18:23,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:18:23,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:18:23,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:18:23,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:18:23,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:18:23,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:18:23,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:18:23,075 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 84 select indices, 84 select index equivalence classes, 3486 disjoint index pairs (out of 3486 index pairs), introduced 84 new quantified variables, introduced 0 case distinctions, treesize of input 421 treesize of output 253 [2022-12-14 15:18:37,669 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 15:18:37,878 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 15:18:38,084 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-12-14 15:18:45,379 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-12-14 15:18:46,369 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 15:18:46,521 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 15:19:00,467 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 15:19:01,046 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-12-14 15:19:02,028 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 15:19:08,457 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 15:19:09,224 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-12-14 15:19:09,376 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 15:22:13,717 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 15:22:13,721 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 15:22:13,724 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 15:22:13,753 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 15:22:13,754 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 54 [2022-12-14 15:22:13,774 INFO L321 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2022-12-14 15:22:13,775 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 52 [2022-12-14 15:22:13,793 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 15:22:13,794 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 46 [2022-12-14 15:22:13,819 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-12-14 15:22:13,823 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-12-14 15:22:13,827 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-14 15:22:33,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:22:33,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:22:33,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:22:33,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:22:33,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:22:33,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:22:33,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:22:33,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:22:33,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:22:33,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:22:33,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:22:33,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:22:33,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:22:33,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:22:33,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:22:33,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:22:33,054 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 18 select indices, 18 select index equivalence classes, 109 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 159 treesize of output 55 [2022-12-14 15:22:33,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:22:33,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:22:33,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:22:33,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:22:33,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:22:33,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:22:33,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:22:33,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:22:33,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:22:33,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:22:33,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:22:33,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:22:33,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:22:33,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:22:33,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:22:33,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:22:33,244 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 18 select indices, 18 select index equivalence classes, 109 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 159 treesize of output 55 [2022-12-14 15:22:33,362 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-12-14 15:22:36,660 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:22:36,665 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:25:40,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:25:40,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:25:40,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:25:40,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:25:40,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:25:40,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:25:40,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:25:40,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:25:40,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:25:40,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:25:40,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:25:40,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:25:40,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:25:40,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:25:40,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:25:40,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:25:40,431 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 18 select indices, 18 select index equivalence classes, 109 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 159 treesize of output 55 [2022-12-14 15:25:40,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:25:40,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:25:40,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:25:40,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:25:40,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:25:40,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:25:40,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:25:40,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:25:40,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:25:40,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:25:40,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:25:40,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:25:40,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:25:40,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:25:40,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:25:40,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:25:40,881 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 18 select indices, 18 select index equivalence classes, 109 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 159 treesize of output 55 [2022-12-14 15:25:42,434 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-12-14 15:25:44,148 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:25:44,208 WARN L207 Elim1Store]: Array PQE input equivalent to false