./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--atm--he.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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17aff78e-9d69-4112-928d-f5489837f9fa/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17aff78e-9d69-4112-928d-f5489837f9fa/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_17aff78e-9d69-4112-928d-f5489837f9fa/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17aff78e-9d69-4112-928d-f5489837f9fa/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--atm--he.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17aff78e-9d69-4112-928d-f5489837f9fa/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_17aff78e-9d69-4112-928d-f5489837f9fa/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 7001fc39e766418166b5245dd523731096962c63b3f1d8b8399a7fc1e7a88c5f --- 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 07:00:35,905 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 07:00:35,907 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 07:00:35,927 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 07:00:35,927 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 07:00:35,928 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 07:00:35,929 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 07:00:35,931 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 07:00:35,933 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 07:00:35,934 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 07:00:35,934 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 07:00:35,936 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 07:00:35,936 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 07:00:35,937 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 07:00:35,938 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 07:00:35,939 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 07:00:35,940 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 07:00:35,941 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 07:00:35,943 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 07:00:35,944 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 07:00:35,946 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 07:00:35,947 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 07:00:35,948 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 07:00:35,949 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 07:00:35,952 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 07:00:35,953 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 07:00:35,953 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 07:00:35,954 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 07:00:35,954 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 07:00:35,955 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 07:00:35,955 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 07:00:35,956 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 07:00:35,957 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 07:00:35,958 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 07:00:35,958 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 07:00:35,959 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 07:00:35,959 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 07:00:35,959 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 07:00:35,960 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 07:00:35,960 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 07:00:35,961 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 07:00:35,962 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17aff78e-9d69-4112-928d-f5489837f9fa/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 07:00:35,983 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 07:00:35,983 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 07:00:35,984 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 07:00:35,984 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 07:00:35,985 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 07:00:35,985 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 07:00:35,985 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 07:00:35,985 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 07:00:35,985 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 07:00:35,985 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 07:00:35,986 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 07:00:35,986 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 07:00:35,986 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 07:00:35,986 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 07:00:35,986 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 07:00:35,987 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 07:00:35,987 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 07:00:35,987 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 07:00:35,988 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 07:00:35,988 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 07:00:35,988 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 07:00:35,988 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 07:00:35,989 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 07:00:35,989 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 07:00:35,989 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 07:00:35,989 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 07:00:35,989 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 07:00:35,990 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 07:00:35,990 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 07:00:35,990 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:00:35,990 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 07:00:35,990 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 07:00:35,991 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 07:00:35,991 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 07:00:35,991 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 07:00:35,991 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 07:00:35,991 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 07:00:35,992 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 07:00:35,992 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_17aff78e-9d69-4112-928d-f5489837f9fa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17aff78e-9d69-4112-928d-f5489837f9fa/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7001fc39e766418166b5245dd523731096962c63b3f1d8b8399a7fc1e7a88c5f [2022-12-14 07:00:36,191 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 07:00:36,209 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 07:00:36,211 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 07:00:36,212 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 07:00:36,212 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 07:00:36,213 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17aff78e-9d69-4112-928d-f5489837f9fa/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--atm--he.ko-entry_point.cil.out.i [2022-12-14 07:00:38,830 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 07:00:39,186 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 07:00:39,186 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17aff78e-9d69-4112-928d-f5489837f9fa/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--atm--he.ko-entry_point.cil.out.i [2022-12-14 07:00:39,209 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17aff78e-9d69-4112-928d-f5489837f9fa/bin/utaipan-gh47qXpMRh/data/12b6f57da/ed5963ddee8f4639b9e8f1aed9b72d33/FLAG7331c1946 [2022-12-14 07:00:39,219 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17aff78e-9d69-4112-928d-f5489837f9fa/bin/utaipan-gh47qXpMRh/data/12b6f57da/ed5963ddee8f4639b9e8f1aed9b72d33 [2022-12-14 07:00:39,221 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 07:00:39,222 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 07:00:39,223 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 07:00:39,223 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 07:00:39,225 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 07:00:39,226 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:00:39" (1/1) ... [2022-12-14 07:00:39,227 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5aaefbb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:00:39, skipping insertion in model container [2022-12-14 07:00:39,227 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:00:39" (1/1) ... [2022-12-14 07:00:39,232 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 07:00:39,309 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 07:00:39,640 WARN L1266 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6037] [2022-12-14 07:00:39,640 WARN L1266 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [6038-6039] [2022-12-14 07:00:39,763 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-12-14 07:00:39,769 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-12-14 07:00:39,785 WARN L623 FunctionHandler]: Unknown extern function __list_del_entry [2022-12-14 07:00:39,808 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 07:00:39,895 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-14 07:00:39,907 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-14 07:00:39,918 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-14 07:00:39,972 WARN L623 FunctionHandler]: Unknown extern function ioremap_nocache [2022-12-14 07:00:39,989 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 07:00:40,052 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_17aff78e-9d69-4112-928d-f5489837f9fa/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--atm--he.ko-entry_point.cil.out.i[185861,185874] [2022-12-14 07:00:40,141 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 07:00:40,141 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-12-14 07:00:40,142 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-12-14 07:00:40,142 WARN L623 FunctionHandler]: Unknown extern function __copy_from_user_overflow [2022-12-14 07:00:40,147 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 07:00:40,147 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-12-14 07:00:40,148 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-12-14 07:00:40,148 WARN L623 FunctionHandler]: Unknown extern function __copy_to_user_overflow [2022-12-14 07:00:40,190 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 07:00:40,194 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 07:00:40,194 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-12-14 07:00:40,200 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-12-14 07:00:40,219 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-12-14 07:00:40,223 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 07:00:40,224 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-12-14 07:00:40,303 WARN L623 FunctionHandler]: Unknown extern function ktime_get_real [2022-12-14 07:00:40,328 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_byte [2022-12-14 07:00:40,333 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_word [2022-12-14 07:00:40,337 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_dword [2022-12-14 07:00:40,342 WARN L623 FunctionHandler]: Unknown extern function pci_bus_write_config_byte [2022-12-14 07:00:40,346 WARN L623 FunctionHandler]: Unknown extern function pci_bus_write_config_word [2022-12-14 07:00:40,351 WARN L623 FunctionHandler]: Unknown extern function pci_bus_write_config_dword [2022-12-14 07:00:40,411 WARN L623 FunctionHandler]: Unknown extern function dma_set_mask [2022-12-14 07:00:40,433 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-12-14 07:00:40,455 WARN L623 FunctionHandler]: Unknown extern function __tasklet_schedule [2022-12-14 07:00:40,472 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_any [2022-12-14 07:00:40,573 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:40,574 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-12-14 07:00:40,575 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:40,577 WARN L623 FunctionHandler]: Unknown extern function tasklet_init [2022-12-14 07:00:40,577 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 07:00:40,579 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:00:40,579 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 07:00:40,583 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:00:40,584 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 07:00:40,611 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:40,630 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:00:40,635 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:40,637 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:40,637 WARN L623 FunctionHandler]: Unknown extern function dma_pool_create [2022-12-14 07:00:40,638 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:40,639 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:40,644 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:40,645 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:40,647 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:40,649 WARN L623 FunctionHandler]: Unknown extern function dma_pool_free [2022-12-14 07:00:40,650 WARN L623 FunctionHandler]: Unknown extern function dma_pool_destroy [2022-12-14 07:00:40,650 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:00:40,651 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:00:40,655 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:40,660 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:40,663 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:40,664 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:40,665 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:40,666 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:40,667 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:40,668 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:40,668 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:40,669 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:40,671 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:40,672 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 07:00:40,672 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:40,673 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:40,674 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:40,676 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:40,681 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:40,699 WARN L623 FunctionHandler]: Unknown extern function dma_pool_create [2022-12-14 07:00:40,700 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:40,706 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:40,708 WARN L623 FunctionHandler]: Unknown extern function suni_init [2022-12-14 07:00:40,719 WARN L623 FunctionHandler]: Unknown extern function dma_pool_free [2022-12-14 07:00:40,721 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:00:40,721 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:00:40,722 WARN L623 FunctionHandler]: Unknown extern function dma_pool_destroy [2022-12-14 07:00:40,723 WARN L623 FunctionHandler]: Unknown extern function dma_pool_destroy [2022-12-14 07:00:40,725 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-12-14 07:00:40,742 WARN L623 FunctionHandler]: Unknown extern function _raw_read_lock [2022-12-14 07:00:40,744 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:40,745 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 07:00:40,745 WARN L623 FunctionHandler]: Unknown extern function dma_pool_free [2022-12-14 07:00:40,746 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:40,748 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-14 07:00:40,749 WARN L623 FunctionHandler]: Unknown extern function atm_alloc_charge [2022-12-14 07:00:40,750 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 07:00:40,754 WARN L623 FunctionHandler]: Unknown extern function dma_pool_free [2022-12-14 07:00:40,755 WARN L623 FunctionHandler]: Unknown extern function _raw_read_unlock [2022-12-14 07:00:40,763 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 07:00:40,763 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:40,764 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-14 07:00:40,767 WARN L623 FunctionHandler]: Unknown extern function dma_pool_free [2022-12-14 07:00:40,774 WARN L623 FunctionHandler]: Unknown extern function find_next_zero_bit [2022-12-14 07:00:40,775 WARN L623 FunctionHandler]: Unknown extern function find_first_zero_bit [2022-12-14 07:00:40,780 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:40,780 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:40,781 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:40,792 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:40,794 WARN L623 FunctionHandler]: Unknown extern function dma_pool_free [2022-12-14 07:00:40,798 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:40,799 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-12-14 07:00:40,799 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-12-14 07:00:40,799 WARN L623 FunctionHandler]: Unknown extern function atm_pcr_goal [2022-12-14 07:00:40,801 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:40,807 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:40,809 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:00:40,813 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 07:00:40,814 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-14 07:00:40,814 WARN L623 FunctionHandler]: Unknown extern function add_wait_queue [2022-12-14 07:00:40,815 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout [2022-12-14 07:00:40,815 WARN L623 FunctionHandler]: Unknown extern function remove_wait_queue [2022-12-14 07:00:40,816 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-14 07:00:40,816 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:40,816 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 07:00:40,817 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:40,819 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:40,820 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-14 07:00:40,820 WARN L623 FunctionHandler]: Unknown extern function add_wait_queue [2022-12-14 07:00:40,820 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout [2022-12-14 07:00:40,821 WARN L623 FunctionHandler]: Unknown extern function remove_wait_queue [2022-12-14 07:00:40,821 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-14 07:00:40,822 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:40,822 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 07:00:40,822 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 07:00:40,823 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:40,824 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:00:40,826 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:40,828 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:40,830 WARN L623 FunctionHandler]: Unknown extern function skb_pull [2022-12-14 07:00:40,833 WARN L623 FunctionHandler]: Unknown extern function capable [2022-12-14 07:00:40,840 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 07:00:40,840 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 07:00:40,842 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 07:00:40,844 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 07:00:40,844 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 07:00:40,845 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 07:00:40,846 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 07:00:40,846 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 07:00:40,847 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 07:00:40,847 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 07:00:40,848 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 07:00:40,851 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 07:00:40,852 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 07:00:40,853 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 07:00:40,854 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 07:00:40,855 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 07:00:40,856 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 07:00:40,863 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-12-14 07:00:40,868 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-12-14 07:00:40,885 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 07:00:40,901 WARN L623 FunctionHandler]: Unknown extern function ldv_check_final_state [2022-12-14 07:00:40,902 WARN L623 FunctionHandler]: Unknown extern function pskb_expand_head [2022-12-14 07:00:40,903 WARN L623 FunctionHandler]: Unknown extern function skb_clone [2022-12-14 07:00:40,903 WARN L623 FunctionHandler]: Unknown extern function skb_copy [2022-12-14 07:00:40,903 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-12-14 07:00:40,904 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-12-14 07:00:40,904 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-12-14 07:00:40,904 WARN L623 FunctionHandler]: Unknown extern function pskb_expand_head [2022-12-14 07:00:40,904 WARN L623 FunctionHandler]: Unknown extern function pskb_expand_head [2022-12-14 07:00:40,905 WARN L623 FunctionHandler]: Unknown extern function skb_clone [2022-12-14 07:00:40,905 WARN L623 FunctionHandler]: Unknown extern function atm_dev_register [2022-12-14 07:00:40,905 WARN L623 FunctionHandler]: Unknown extern function atm_dev_deregister [2022-12-14 07:00:40,906 WARN L623 FunctionHandler]: Unknown extern function atm_dev_deregister [2022-12-14 07:00:40,906 WARN L623 FunctionHandler]: Unknown extern function dma_pool_alloc [2022-12-14 07:00:40,907 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-14 07:00:40,907 WARN L623 FunctionHandler]: Unknown extern function dma_pool_alloc [2022-12-14 07:00:40,907 WARN L623 FunctionHandler]: Unknown extern function dma_pool_alloc [2022-12-14 07:00:40,914 WARN L623 FunctionHandler]: Unknown extern function ldv_some_page [2022-12-14 07:00:40,922 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 07:00:40,923 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 07:00:40,924 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 07:00:40,925 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 07:00:40,929 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 07:00:40,929 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 07:00:40,930 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 07:00:40,930 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 07:00:40,930 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-12-14 07:00:40,931 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 07:00:40,936 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 07:00:40,937 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 07:00:40,937 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 07:00:40,941 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:00:40,957 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 07:00:41,026 WARN L1266 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6037] [2022-12-14 07:00:41,027 WARN L1266 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [6038-6039] [2022-12-14 07:00:41,029 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-12-14 07:00:41,030 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-12-14 07:00:41,030 WARN L623 FunctionHandler]: Unknown extern function __list_del_entry [2022-12-14 07:00:41,031 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 07:00:41,033 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-14 07:00:41,033 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-14 07:00:41,033 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-14 07:00:41,034 WARN L623 FunctionHandler]: Unknown extern function ioremap_nocache [2022-12-14 07:00:41,034 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 07:00:41,036 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_17aff78e-9d69-4112-928d-f5489837f9fa/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--atm--he.ko-entry_point.cil.out.i[185861,185874] [2022-12-14 07:00:41,037 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 07:00:41,038 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-12-14 07:00:41,038 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-12-14 07:00:41,038 WARN L623 FunctionHandler]: Unknown extern function __copy_from_user_overflow [2022-12-14 07:00:41,039 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 07:00:41,039 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-12-14 07:00:41,039 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-12-14 07:00:41,040 WARN L623 FunctionHandler]: Unknown extern function __copy_to_user_overflow [2022-12-14 07:00:41,043 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 07:00:41,044 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 07:00:41,044 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-12-14 07:00:41,045 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-12-14 07:00:41,047 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-12-14 07:00:41,048 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 07:00:41,048 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-12-14 07:00:41,050 WARN L623 FunctionHandler]: Unknown extern function ktime_get_real [2022-12-14 07:00:41,051 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_byte [2022-12-14 07:00:41,052 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_word [2022-12-14 07:00:41,068 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_dword [2022-12-14 07:00:41,070 WARN L623 FunctionHandler]: Unknown extern function pci_bus_write_config_byte [2022-12-14 07:00:41,072 WARN L623 FunctionHandler]: Unknown extern function pci_bus_write_config_word [2022-12-14 07:00:41,074 WARN L623 FunctionHandler]: Unknown extern function pci_bus_write_config_dword [2022-12-14 07:00:41,078 WARN L623 FunctionHandler]: Unknown extern function dma_set_mask [2022-12-14 07:00:41,079 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-12-14 07:00:41,080 WARN L623 FunctionHandler]: Unknown extern function __tasklet_schedule [2022-12-14 07:00:41,080 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_any [2022-12-14 07:00:41,087 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:41,087 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-12-14 07:00:41,088 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:41,089 WARN L623 FunctionHandler]: Unknown extern function tasklet_init [2022-12-14 07:00:41,090 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 07:00:41,101 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:00:41,101 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 07:00:41,102 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:00:41,102 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 07:00:41,109 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:41,132 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:00:41,134 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:41,135 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:41,135 WARN L623 FunctionHandler]: Unknown extern function dma_pool_create [2022-12-14 07:00:41,136 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:41,136 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:41,139 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:41,140 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:41,141 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:41,143 WARN L623 FunctionHandler]: Unknown extern function dma_pool_free [2022-12-14 07:00:41,144 WARN L623 FunctionHandler]: Unknown extern function dma_pool_destroy [2022-12-14 07:00:41,144 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:00:41,144 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:00:41,145 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:41,148 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:41,151 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:41,151 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:41,152 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:41,153 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:41,153 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:41,154 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:41,154 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:41,155 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:41,155 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:41,156 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 07:00:41,156 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:41,157 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:41,158 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:41,159 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:41,162 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:41,171 WARN L623 FunctionHandler]: Unknown extern function dma_pool_create [2022-12-14 07:00:41,171 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:41,175 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:41,175 WARN L623 FunctionHandler]: Unknown extern function suni_init [2022-12-14 07:00:41,185 WARN L623 FunctionHandler]: Unknown extern function dma_pool_free [2022-12-14 07:00:41,186 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:00:41,186 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:00:41,187 WARN L623 FunctionHandler]: Unknown extern function dma_pool_destroy [2022-12-14 07:00:41,188 WARN L623 FunctionHandler]: Unknown extern function dma_pool_destroy [2022-12-14 07:00:41,188 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-12-14 07:00:41,191 WARN L623 FunctionHandler]: Unknown extern function _raw_read_lock [2022-12-14 07:00:41,192 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:41,193 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 07:00:41,193 WARN L623 FunctionHandler]: Unknown extern function dma_pool_free [2022-12-14 07:00:41,194 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:41,195 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-14 07:00:41,195 WARN L623 FunctionHandler]: Unknown extern function atm_alloc_charge [2022-12-14 07:00:41,196 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 07:00:41,202 WARN L623 FunctionHandler]: Unknown extern function dma_pool_free [2022-12-14 07:00:41,203 WARN L623 FunctionHandler]: Unknown extern function _raw_read_unlock [2022-12-14 07:00:41,205 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 07:00:41,206 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:41,206 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-14 07:00:41,212 WARN L623 FunctionHandler]: Unknown extern function dma_pool_free [2022-12-14 07:00:41,214 WARN L623 FunctionHandler]: Unknown extern function find_next_zero_bit [2022-12-14 07:00:41,215 WARN L623 FunctionHandler]: Unknown extern function find_first_zero_bit [2022-12-14 07:00:41,220 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:41,220 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:41,221 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:41,225 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:41,239 WARN L623 FunctionHandler]: Unknown extern function dma_pool_free [2022-12-14 07:00:41,242 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:41,243 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-12-14 07:00:41,243 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-12-14 07:00:41,243 WARN L623 FunctionHandler]: Unknown extern function atm_pcr_goal [2022-12-14 07:00:41,244 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:41,248 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:41,249 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:00:41,252 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 07:00:41,253 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-14 07:00:41,253 WARN L623 FunctionHandler]: Unknown extern function add_wait_queue [2022-12-14 07:00:41,253 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout [2022-12-14 07:00:41,254 WARN L623 FunctionHandler]: Unknown extern function remove_wait_queue [2022-12-14 07:00:41,254 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-14 07:00:41,254 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:41,255 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 07:00:41,255 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:41,256 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:41,257 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-14 07:00:41,257 WARN L623 FunctionHandler]: Unknown extern function add_wait_queue [2022-12-14 07:00:41,258 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout [2022-12-14 07:00:41,258 WARN L623 FunctionHandler]: Unknown extern function remove_wait_queue [2022-12-14 07:00:41,258 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-14 07:00:41,259 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:41,259 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 07:00:41,259 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 07:00:41,260 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:41,260 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:00:41,262 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:41,267 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:00:41,276 WARN L623 FunctionHandler]: Unknown extern function skb_pull [2022-12-14 07:00:41,278 WARN L623 FunctionHandler]: Unknown extern function capable [2022-12-14 07:00:41,283 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 07:00:41,284 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 07:00:41,285 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 07:00:41,286 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 07:00:41,286 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 07:00:41,286 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 07:00:41,287 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 07:00:41,287 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 07:00:41,287 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 07:00:41,288 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 07:00:41,288 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 07:00:41,290 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 07:00:41,290 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 07:00:41,291 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 07:00:41,291 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 07:00:41,292 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 07:00:41,292 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 07:00:41,293 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-12-14 07:00:41,294 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-12-14 07:00:41,297 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 07:00:41,300 WARN L623 FunctionHandler]: Unknown extern function ldv_check_final_state [2022-12-14 07:00:41,301 WARN L623 FunctionHandler]: Unknown extern function pskb_expand_head [2022-12-14 07:00:41,302 WARN L623 FunctionHandler]: Unknown extern function skb_clone [2022-12-14 07:00:41,302 WARN L623 FunctionHandler]: Unknown extern function skb_copy [2022-12-14 07:00:41,302 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-12-14 07:00:41,303 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-12-14 07:00:41,303 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-12-14 07:00:41,303 WARN L623 FunctionHandler]: Unknown extern function pskb_expand_head [2022-12-14 07:00:41,304 WARN L623 FunctionHandler]: Unknown extern function pskb_expand_head [2022-12-14 07:00:41,304 WARN L623 FunctionHandler]: Unknown extern function skb_clone [2022-12-14 07:00:41,304 WARN L623 FunctionHandler]: Unknown extern function atm_dev_register [2022-12-14 07:00:41,305 WARN L623 FunctionHandler]: Unknown extern function atm_dev_deregister [2022-12-14 07:00:41,305 WARN L623 FunctionHandler]: Unknown extern function atm_dev_deregister [2022-12-14 07:00:41,305 WARN L623 FunctionHandler]: Unknown extern function dma_pool_alloc [2022-12-14 07:00:41,306 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-14 07:00:41,306 WARN L623 FunctionHandler]: Unknown extern function dma_pool_alloc [2022-12-14 07:00:41,307 WARN L623 FunctionHandler]: Unknown extern function dma_pool_alloc [2022-12-14 07:00:41,307 WARN L623 FunctionHandler]: Unknown extern function ldv_some_page [2022-12-14 07:00:41,308 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 07:00:41,312 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 07:00:41,314 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 07:00:41,314 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 07:00:41,315 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 07:00:41,315 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 07:00:41,316 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 07:00:41,316 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 07:00:41,316 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-12-14 07:00:41,317 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 07:00:41,319 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 07:00:41,319 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 07:00:41,320 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 07:00:41,321 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:00:41,375 INFO L208 MainTranslator]: Completed translation [2022-12-14 07:00:41,375 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:00:41 WrapperNode [2022-12-14 07:00:41,375 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 07:00:41,376 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 07:00:41,376 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 07:00:41,377 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 07:00:41,384 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:00:41" (1/1) ... [2022-12-14 07:00:41,443 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:00:41" (1/1) ... [2022-12-14 07:00:41,590 INFO L138 Inliner]: procedures = 259, calls = 2016, calls flagged for inlining = 128, calls inlined = 102, statements flattened = 4818 [2022-12-14 07:00:41,590 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 07:00:41,591 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 07:00:41,591 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 07:00:41,591 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 07:00:41,600 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:00:41" (1/1) ... [2022-12-14 07:00:41,600 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:00:41" (1/1) ... [2022-12-14 07:00:41,622 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:00:41" (1/1) ... [2022-12-14 07:00:41,623 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:00:41" (1/1) ... [2022-12-14 07:00:41,714 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:00:41" (1/1) ... [2022-12-14 07:00:41,723 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:00:41" (1/1) ... [2022-12-14 07:00:41,734 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:00:41" (1/1) ... [2022-12-14 07:00:41,743 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:00:41" (1/1) ... [2022-12-14 07:00:41,760 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 07:00:41,760 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 07:00:41,760 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 07:00:41,760 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 07:00:41,761 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:00:41" (1/1) ... [2022-12-14 07:00:41,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:00:41,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17aff78e-9d69-4112-928d-f5489837f9fa/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:00:41,782 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17aff78e-9d69-4112-928d-f5489837f9fa/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 07:00:41,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17aff78e-9d69-4112-928d-f5489837f9fa/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 07:00:41,810 INFO L130 BoogieDeclarations]: Found specification of procedure he_remove_one [2022-12-14 07:00:41,810 INFO L138 BoogieDeclarations]: Found implementation of procedure he_remove_one [2022-12-14 07:00:41,810 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-12-14 07:00:41,810 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-12-14 07:00:41,810 INFO L130 BoogieDeclarations]: Found specification of procedure remove_wait_queue [2022-12-14 07:00:41,810 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_wait_queue [2022-12-14 07:00:41,810 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-12-14 07:00:41,810 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-12-14 07:00:41,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-12-14 07:00:41,810 INFO L130 BoogieDeclarations]: Found specification of procedure he_close [2022-12-14 07:00:41,810 INFO L138 BoogieDeclarations]: Found implementation of procedure he_close [2022-12-14 07:00:41,810 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_alloc [2022-12-14 07:00:41,810 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_alloc [2022-12-14 07:00:41,810 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-12-14 07:00:41,810 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-12-14 07:00:41,810 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-12-14 07:00:41,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-12-14 07:00:41,810 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-14 07:00:41,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-14 07:00:41,811 INFO L130 BoogieDeclarations]: Found specification of procedure he_phy_get [2022-12-14 07:00:41,811 INFO L138 BoogieDeclarations]: Found implementation of procedure he_phy_get [2022-12-14 07:00:41,811 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_byte [2022-12-14 07:00:41,811 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_byte [2022-12-14 07:00:41,811 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2022-12-14 07:00:41,811 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2022-12-14 07:00:41,811 INFO L130 BoogieDeclarations]: Found specification of procedure __alloc_tpd [2022-12-14 07:00:41,811 INFO L138 BoogieDeclarations]: Found implementation of procedure __alloc_tpd [2022-12-14 07:00:41,811 INFO L130 BoogieDeclarations]: Found specification of procedure rate_to_atmf [2022-12-14 07:00:41,811 INFO L138 BoogieDeclarations]: Found implementation of procedure rate_to_atmf [2022-12-14 07:00:41,811 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-12-14 07:00:41,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-12-14 07:00:41,811 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-12-14 07:00:41,811 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-12-14 07:00:41,811 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-12-14 07:00:41,811 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-12-14 07:00:41,811 INFO L130 BoogieDeclarations]: Found specification of procedure he_phy_put [2022-12-14 07:00:41,812 INFO L138 BoogieDeclarations]: Found implementation of procedure he_phy_put [2022-12-14 07:00:41,812 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-14 07:00:41,812 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-14 07:00:41,812 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-14 07:00:41,812 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-14 07:00:41,812 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-12-14 07:00:41,812 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-12-14 07:00:41,812 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 07:00:41,812 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-12-14 07:00:41,812 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-12-14 07:00:41,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 07:00:41,812 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_create [2022-12-14 07:00:41,812 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_create [2022-12-14 07:00:41,812 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-12-14 07:00:41,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-12-14 07:00:41,813 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-12-14 07:00:41,813 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-12-14 07:00:41,813 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_destroy [2022-12-14 07:00:41,813 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_destroy [2022-12-14 07:00:41,813 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-12-14 07:00:41,813 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-12-14 07:00:41,813 INFO L130 BoogieDeclarations]: Found specification of procedure he_readl_internal [2022-12-14 07:00:41,813 INFO L138 BoogieDeclarations]: Found implementation of procedure he_readl_internal [2022-12-14 07:00:41,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 07:00:41,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 07:00:41,813 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-12-14 07:00:41,813 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-12-14 07:00:41,813 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2022-12-14 07:00:41,813 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2022-12-14 07:00:41,813 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2022-12-14 07:00:41,814 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2022-12-14 07:00:41,814 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-12-14 07:00:41,814 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-12-14 07:00:41,814 INFO L130 BoogieDeclarations]: Found specification of procedure he_send [2022-12-14 07:00:41,814 INFO L138 BoogieDeclarations]: Found implementation of procedure he_send [2022-12-14 07:00:41,814 INFO L130 BoogieDeclarations]: Found specification of procedure add_wait_queue [2022-12-14 07:00:41,814 INFO L138 BoogieDeclarations]: Found implementation of procedure add_wait_queue [2022-12-14 07:00:41,814 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-12-14 07:00:41,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-12-14 07:00:41,814 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-12-14 07:00:41,814 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-12-14 07:00:41,814 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2022-12-14 07:00:41,814 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2022-12-14 07:00:41,814 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-12-14 07:00:41,814 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-12-14 07:00:41,815 INFO L130 BoogieDeclarations]: Found specification of procedure he_writel_internal [2022-12-14 07:00:41,815 INFO L138 BoogieDeclarations]: Found implementation of procedure he_writel_internal [2022-12-14 07:00:41,815 INFO L130 BoogieDeclarations]: Found specification of procedure he_ioctl [2022-12-14 07:00:41,815 INFO L138 BoogieDeclarations]: Found implementation of procedure he_ioctl [2022-12-14 07:00:41,815 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 07:00:41,815 INFO L130 BoogieDeclarations]: Found specification of procedure he_open [2022-12-14 07:00:41,815 INFO L138 BoogieDeclarations]: Found implementation of procedure he_open [2022-12-14 07:00:41,815 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-12-14 07:00:41,815 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-12-14 07:00:41,815 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-12-14 07:00:41,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-12-14 07:00:41,815 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-12-14 07:00:41,815 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-12-14 07:00:41,815 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-12-14 07:00:41,815 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-12-14 07:00:41,816 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-12-14 07:00:41,816 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-12-14 07:00:41,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 07:00:41,816 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-12-14 07:00:41,816 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-12-14 07:00:41,816 INFO L130 BoogieDeclarations]: Found specification of procedure he_stop [2022-12-14 07:00:41,816 INFO L138 BoogieDeclarations]: Found implementation of procedure he_stop [2022-12-14 07:00:41,816 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-12-14 07:00:41,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-12-14 07:00:41,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 07:00:41,816 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-12-14 07:00:41,816 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-12-14 07:00:41,816 INFO L130 BoogieDeclarations]: Found specification of procedure __enqueue_tpd [2022-12-14 07:00:41,816 INFO L138 BoogieDeclarations]: Found implementation of procedure __enqueue_tpd [2022-12-14 07:00:41,816 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-12-14 07:00:41,817 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-12-14 07:00:41,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 07:00:41,817 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2022-12-14 07:00:41,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2022-12-14 07:00:41,817 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-12-14 07:00:41,817 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-12-14 07:00:41,817 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-12-14 07:00:41,817 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-12-14 07:00:41,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 07:00:41,817 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2022-12-14 07:00:41,817 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2022-12-14 07:00:41,817 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-12-14 07:00:41,817 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-12-14 07:00:41,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-12-14 07:00:41,817 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-12-14 07:00:41,818 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-12-14 07:00:41,818 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-12-14 07:00:41,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-12-14 07:00:41,818 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-12-14 07:00:41,818 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-12-14 07:00:41,818 INFO L130 BoogieDeclarations]: Found specification of procedure atm_dev_deregister [2022-12-14 07:00:41,818 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_dev_deregister [2022-12-14 07:00:41,818 INFO L130 BoogieDeclarations]: Found specification of procedure read_prom_byte [2022-12-14 07:00:41,818 INFO L138 BoogieDeclarations]: Found implementation of procedure read_prom_byte [2022-12-14 07:00:41,818 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-12-14 07:00:41,818 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-12-14 07:00:41,818 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-12-14 07:00:41,818 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-12-14 07:00:41,818 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-12-14 07:00:41,819 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-12-14 07:00:41,819 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-12-14 07:00:41,819 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-12-14 07:00:41,819 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2022-12-14 07:00:41,819 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2022-12-14 07:00:41,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 07:00:41,819 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-12-14 07:00:41,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-12-14 07:00:41,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 07:00:41,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 07:00:41,819 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_free [2022-12-14 07:00:41,819 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_free [2022-12-14 07:00:42,345 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 07:00:42,348 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 07:00:42,668 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-12-14 07:00:45,234 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 07:00:46,297 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 07:00:46,297 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 07:00:46,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:00:46 BoogieIcfgContainer [2022-12-14 07:00:46,302 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 07:00:46,305 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 07:00:46,305 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 07:00:46,308 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 07:00:46,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 07:00:39" (1/3) ... [2022-12-14 07:00:46,309 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54a44ad6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:00:46, skipping insertion in model container [2022-12-14 07:00:46,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:00:41" (2/3) ... [2022-12-14 07:00:46,309 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54a44ad6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:00:46, skipping insertion in model container [2022-12-14 07:00:46,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:00:46" (3/3) ... [2022-12-14 07:00:46,311 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--atm--he.ko-entry_point.cil.out.i [2022-12-14 07:00:46,331 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 07:00:46,331 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 07:00:46,408 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 07:00:46,415 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;@843caf9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 07:00:46,415 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 07:00:46,424 INFO L276 IsEmpty]: Start isEmpty. Operand has 1352 states, 772 states have (on average 1.2953367875647668) internal successors, (1000), 795 states have internal predecessors, (1000), 510 states have call successors, (510), 69 states have call predecessors, (510), 68 states have return successors, (504), 499 states have call predecessors, (504), 504 states have call successors, (504) [2022-12-14 07:00:46,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-12-14 07:00:46,441 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:00:46,441 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:00:46,442 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:00:46,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:00:46,447 INFO L85 PathProgramCache]: Analyzing trace with hash -1463623709, now seen corresponding path program 1 times [2022-12-14 07:00:46,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:00:46,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284299286] [2022-12-14 07:00:46,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:00:46,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:00:46,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:00:46,904 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-12-14 07:00:46,905 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:00:46,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284299286] [2022-12-14 07:00:46,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284299286] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:00:46,906 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:00:46,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:00:46,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444010136] [2022-12-14 07:00:46,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:00:46,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:00:46,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:00:46,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:00:46,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:00:46,948 INFO L87 Difference]: Start difference. First operand has 1352 states, 772 states have (on average 1.2953367875647668) internal successors, (1000), 795 states have internal predecessors, (1000), 510 states have call successors, (510), 69 states have call predecessors, (510), 68 states have return successors, (504), 499 states have call predecessors, (504), 504 states have call successors, (504) Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-12-14 07:00:49,686 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 07:00:49,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:00:49,837 INFO L93 Difference]: Finished difference Result 3222 states and 4796 transitions. [2022-12-14 07:00:49,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:00:49,839 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 56 [2022-12-14 07:00:49,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:00:49,863 INFO L225 Difference]: With dead ends: 3222 [2022-12-14 07:00:49,863 INFO L226 Difference]: Without dead ends: 1860 [2022-12-14 07:00:49,872 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 07:00:49,875 INFO L413 NwaCegarLoop]: 2181 mSDtfsCounter, 766 mSDsluCounter, 1795 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 766 SdHoareTripleChecker+Valid, 3976 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-12-14 07:00:49,876 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [766 Valid, 3976 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 370 Invalid, 1 Unknown, 0 Unchecked, 2.7s Time] [2022-12-14 07:00:49,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1860 states. [2022-12-14 07:00:50,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1860 to 1850. [2022-12-14 07:00:50,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1850 states, 1075 states have (on average 1.2855813953488373) internal successors, (1382), 1095 states have internal predecessors, (1382), 668 states have call successors, (668), 108 states have call predecessors, (668), 106 states have return successors, (667), 658 states have call predecessors, (667), 667 states have call successors, (667) [2022-12-14 07:00:50,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1850 states to 1850 states and 2717 transitions. [2022-12-14 07:00:50,061 INFO L78 Accepts]: Start accepts. Automaton has 1850 states and 2717 transitions. Word has length 56 [2022-12-14 07:00:50,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:00:50,061 INFO L495 AbstractCegarLoop]: Abstraction has 1850 states and 2717 transitions. [2022-12-14 07:00:50,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-12-14 07:00:50,062 INFO L276 IsEmpty]: Start isEmpty. Operand 1850 states and 2717 transitions. [2022-12-14 07:00:50,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-12-14 07:00:50,065 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:00:50,065 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:00:50,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 07:00:50,065 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:00:50,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:00:50,066 INFO L85 PathProgramCache]: Analyzing trace with hash -969338818, now seen corresponding path program 1 times [2022-12-14 07:00:50,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:00:50,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136182037] [2022-12-14 07:00:50,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:00:50,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:00:50,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:00:50,181 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-12-14 07:00:50,182 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:00:50,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136182037] [2022-12-14 07:00:50,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136182037] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:00:50,182 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:00:50,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:00:50,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551261167] [2022-12-14 07:00:50,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:00:50,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:00:50,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:00:50,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:00:50,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:00:50,185 INFO L87 Difference]: Start difference. First operand 1850 states and 2717 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-12-14 07:00:52,880 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 07:00:53,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:00:53,038 INFO L93 Difference]: Finished difference Result 4379 states and 6411 transitions. [2022-12-14 07:00:53,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:00:53,039 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 55 [2022-12-14 07:00:53,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:00:53,055 INFO L225 Difference]: With dead ends: 4379 [2022-12-14 07:00:53,055 INFO L226 Difference]: Without dead ends: 2540 [2022-12-14 07:00:53,063 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 07:00:53,064 INFO L413 NwaCegarLoop]: 2378 mSDtfsCounter, 901 mSDsluCounter, 1810 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 901 SdHoareTripleChecker+Valid, 4188 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-12-14 07:00:53,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [901 Valid, 4188 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 368 Invalid, 1 Unknown, 0 Unchecked, 2.7s Time] [2022-12-14 07:00:53,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2540 states. [2022-12-14 07:00:53,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2540 to 2537. [2022-12-14 07:00:53,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2537 states, 1500 states have (on average 1.306) internal successors, (1959), 1533 states have internal predecessors, (1959), 874 states have call successors, (874), 164 states have call predecessors, (874), 162 states have return successors, (873), 860 states have call predecessors, (873), 873 states have call successors, (873) [2022-12-14 07:00:53,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2537 states to 2537 states and 3706 transitions. [2022-12-14 07:00:53,202 INFO L78 Accepts]: Start accepts. Automaton has 2537 states and 3706 transitions. Word has length 55 [2022-12-14 07:00:53,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:00:53,203 INFO L495 AbstractCegarLoop]: Abstraction has 2537 states and 3706 transitions. [2022-12-14 07:00:53,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-12-14 07:00:53,203 INFO L276 IsEmpty]: Start isEmpty. Operand 2537 states and 3706 transitions. [2022-12-14 07:00:53,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-12-14 07:00:53,204 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:00:53,204 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:00:53,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 07:00:53,205 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:00:53,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:00:53,205 INFO L85 PathProgramCache]: Analyzing trace with hash 824373861, now seen corresponding path program 1 times [2022-12-14 07:00:53,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:00:53,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82153784] [2022-12-14 07:00:53,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:00:53,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:00:53,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:00:53,385 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-12-14 07:00:53,385 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:00:53,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82153784] [2022-12-14 07:00:53,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82153784] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:00:53,386 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:00:53,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:00:53,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824071638] [2022-12-14 07:00:53,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:00:53,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:00:53,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:00:53,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:00:53,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:00:53,387 INFO L87 Difference]: Start difference. First operand 2537 states and 3706 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-12-14 07:00:55,868 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 07:00:56,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:00:56,208 INFO L93 Difference]: Finished difference Result 3828 states and 5563 transitions. [2022-12-14 07:00:56,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:00:56,209 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 70 [2022-12-14 07:00:56,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:00:56,230 INFO L225 Difference]: With dead ends: 3828 [2022-12-14 07:00:56,230 INFO L226 Difference]: Without dead ends: 3825 [2022-12-14 07:00:56,233 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 07:00:56,234 INFO L413 NwaCegarLoop]: 2026 mSDtfsCounter, 955 mSDsluCounter, 1688 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 955 SdHoareTripleChecker+Valid, 3714 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-12-14 07:00:56,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [955 Valid, 3714 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 306 Invalid, 1 Unknown, 0 Unchecked, 2.7s Time] [2022-12-14 07:00:56,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3825 states. [2022-12-14 07:00:56,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3825 to 3778. [2022-12-14 07:00:56,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3778 states, 2321 states have (on average 1.3162429987074538) internal successors, (3055), 2361 states have internal predecessors, (3055), 1190 states have call successors, (1190), 269 states have call predecessors, (1190), 266 states have return successors, (1232), 1172 states have call predecessors, (1232), 1189 states have call successors, (1232) [2022-12-14 07:00:56,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3778 states to 3778 states and 5477 transitions. [2022-12-14 07:00:56,443 INFO L78 Accepts]: Start accepts. Automaton has 3778 states and 5477 transitions. Word has length 70 [2022-12-14 07:00:56,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:00:56,443 INFO L495 AbstractCegarLoop]: Abstraction has 3778 states and 5477 transitions. [2022-12-14 07:00:56,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-12-14 07:00:56,444 INFO L276 IsEmpty]: Start isEmpty. Operand 3778 states and 5477 transitions. [2022-12-14 07:00:56,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-12-14 07:00:56,450 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:00:56,450 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 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] [2022-12-14 07:00:56,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 07:00:56,450 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:00:56,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:00:56,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1390819575, now seen corresponding path program 1 times [2022-12-14 07:00:56,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:00:56,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437967712] [2022-12-14 07:00:56,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:00:56,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:00:56,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:00:56,972 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2022-12-14 07:00:56,972 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:00:56,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437967712] [2022-12-14 07:00:56,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437967712] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:00:56,973 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:00:56,973 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 07:00:56,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457503884] [2022-12-14 07:00:56,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:00:56,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 07:00:56,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:00:56,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 07:00:56,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:00:56,975 INFO L87 Difference]: Start difference. First operand 3778 states and 5477 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 07:01:00,278 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 07:01:00,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:01:00,580 INFO L93 Difference]: Finished difference Result 8567 states and 12619 transitions. [2022-12-14 07:01:00,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 07:01:00,580 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 111 [2022-12-14 07:01:00,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:01:00,598 INFO L225 Difference]: With dead ends: 8567 [2022-12-14 07:01:00,598 INFO L226 Difference]: Without dead ends: 4808 [2022-12-14 07:01:00,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:01:00,611 INFO L413 NwaCegarLoop]: 2169 mSDtfsCounter, 232 mSDsluCounter, 6222 mSDsCounter, 0 mSdLazyCounter, 697 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 8391 SdHoareTripleChecker+Invalid, 698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 697 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-12-14 07:01:00,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [305 Valid, 8391 Invalid, 698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 697 Invalid, 1 Unknown, 0 Unchecked, 3.3s Time] [2022-12-14 07:01:00,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4808 states. [2022-12-14 07:01:00,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4808 to 3794. [2022-12-14 07:01:00,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3794 states, 2333 states have (on average 1.314616373767681) internal successors, (3067), 2373 states have internal predecessors, (3067), 1190 states have call successors, (1190), 269 states have call predecessors, (1190), 270 states have return successors, (1247), 1176 states have call predecessors, (1247), 1189 states have call successors, (1247) [2022-12-14 07:01:00,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3794 states to 3794 states and 5504 transitions. [2022-12-14 07:01:00,785 INFO L78 Accepts]: Start accepts. Automaton has 3794 states and 5504 transitions. Word has length 111 [2022-12-14 07:01:00,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:01:00,785 INFO L495 AbstractCegarLoop]: Abstraction has 3794 states and 5504 transitions. [2022-12-14 07:01:00,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 07:01:00,785 INFO L276 IsEmpty]: Start isEmpty. Operand 3794 states and 5504 transitions. [2022-12-14 07:01:00,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-12-14 07:01:00,790 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:01:00,790 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 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] [2022-12-14 07:01:00,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 07:01:00,791 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:01:00,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:01:00,791 INFO L85 PathProgramCache]: Analyzing trace with hash 636105480, now seen corresponding path program 1 times [2022-12-14 07:01:00,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:01:00,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383265246] [2022-12-14 07:01:00,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:01:00,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:01:00,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:01:00,959 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2022-12-14 07:01:00,960 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:01:00,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383265246] [2022-12-14 07:01:00,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383265246] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:01:00,960 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:01:00,960 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:01:00,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783838635] [2022-12-14 07:01:00,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:01:00,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:01:00,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:01:00,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:01:00,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:01:00,962 INFO L87 Difference]: Start difference. First operand 3794 states and 5504 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-12-14 07:01:03,831 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 07:01:04,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:01:04,008 INFO L93 Difference]: Finished difference Result 9283 states and 13397 transitions. [2022-12-14 07:01:04,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:01:04,009 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 116 [2022-12-14 07:01:04,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:01:04,028 INFO L225 Difference]: With dead ends: 9283 [2022-12-14 07:01:04,029 INFO L226 Difference]: Without dead ends: 5508 [2022-12-14 07:01:04,040 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 07:01:04,041 INFO L413 NwaCegarLoop]: 2362 mSDtfsCounter, 1022 mSDsluCounter, 1782 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 21 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1022 SdHoareTripleChecker+Valid, 4144 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-12-14 07:01:04,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1022 Valid, 4144 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 409 Invalid, 1 Unknown, 0 Unchecked, 2.9s Time] [2022-12-14 07:01:04,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5508 states. [2022-12-14 07:01:04,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5508 to 5487. [2022-12-14 07:01:04,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5487 states, 3419 states have (on average 1.3082772740567417) internal successors, (4473), 3476 states have internal predecessors, (4473), 1648 states have call successors, (1648), 418 states have call predecessors, (1648), 419 states have return successors, (1730), 1629 states have call predecessors, (1730), 1647 states have call successors, (1730) [2022-12-14 07:01:04,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5487 states to 5487 states and 7851 transitions. [2022-12-14 07:01:04,258 INFO L78 Accepts]: Start accepts. Automaton has 5487 states and 7851 transitions. Word has length 116 [2022-12-14 07:01:04,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:01:04,258 INFO L495 AbstractCegarLoop]: Abstraction has 5487 states and 7851 transitions. [2022-12-14 07:01:04,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-12-14 07:01:04,259 INFO L276 IsEmpty]: Start isEmpty. Operand 5487 states and 7851 transitions. [2022-12-14 07:01:04,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-12-14 07:01:04,261 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:01:04,261 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 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] [2022-12-14 07:01:04,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 07:01:04,262 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:01:04,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:01:04,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1636644995, now seen corresponding path program 1 times [2022-12-14 07:01:04,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:01:04,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651710559] [2022-12-14 07:01:04,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:01:04,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:01:04,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:01:05,231 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2022-12-14 07:01:05,231 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:01:05,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651710559] [2022-12-14 07:01:05,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651710559] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:01:05,232 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:01:05,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-14 07:01:05,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170867793] [2022-12-14 07:01:05,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:01:05,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 07:01:05,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:01:05,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 07:01:05,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 07:01:05,234 INFO L87 Difference]: Start difference. First operand 5487 states and 7851 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 4 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2022-12-14 07:01:09,298 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 07:01:09,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:01:09,779 INFO L93 Difference]: Finished difference Result 13519 states and 19876 transitions. [2022-12-14 07:01:09,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 07:01:09,780 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 4 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) Word has length 115 [2022-12-14 07:01:09,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:01:09,812 INFO L225 Difference]: With dead ends: 13519 [2022-12-14 07:01:09,812 INFO L226 Difference]: Without dead ends: 8051 [2022-12-14 07:01:09,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-12-14 07:01:09,827 INFO L413 NwaCegarLoop]: 2116 mSDtfsCounter, 1050 mSDsluCounter, 10288 mSDsCounter, 0 mSdLazyCounter, 1162 mSolverCounterSat, 243 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1147 SdHoareTripleChecker+Valid, 12404 SdHoareTripleChecker+Invalid, 1406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 243 IncrementalHoareTripleChecker+Valid, 1162 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:01:09,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1147 Valid, 12404 Invalid, 1406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [243 Valid, 1162 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2022-12-14 07:01:09,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8051 states. [2022-12-14 07:01:10,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8051 to 5723. [2022-12-14 07:01:10,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5723 states, 3561 states have (on average 1.306093793878124) internal successors, (4651), 3618 states have internal predecessors, (4651), 1742 states have call successors, (1742), 418 states have call predecessors, (1742), 419 states have return successors, (1827), 1723 states have call predecessors, (1827), 1741 states have call successors, (1827) [2022-12-14 07:01:10,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5723 states to 5723 states and 8220 transitions. [2022-12-14 07:01:10,084 INFO L78 Accepts]: Start accepts. Automaton has 5723 states and 8220 transitions. Word has length 115 [2022-12-14 07:01:10,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:01:10,084 INFO L495 AbstractCegarLoop]: Abstraction has 5723 states and 8220 transitions. [2022-12-14 07:01:10,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 4 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2022-12-14 07:01:10,084 INFO L276 IsEmpty]: Start isEmpty. Operand 5723 states and 8220 transitions. [2022-12-14 07:01:10,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-12-14 07:01:10,087 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:01:10,087 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:01:10,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 07:01:10,088 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:01:10,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:01:10,088 INFO L85 PathProgramCache]: Analyzing trace with hash 342372924, now seen corresponding path program 1 times [2022-12-14 07:01:10,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:01:10,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493443018] [2022-12-14 07:01:10,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:01:10,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:01:10,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:01:10,273 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2022-12-14 07:01:10,273 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:01:10,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493443018] [2022-12-14 07:01:10,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493443018] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:01:10,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:01:10,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 07:01:10,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594412621] [2022-12-14 07:01:10,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:01:10,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:01:10,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:01:10,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:01:10,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:01:10,275 INFO L87 Difference]: Start difference. First operand 5723 states and 8220 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 07:01:12,984 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 07:01:14,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:01:14,101 INFO L93 Difference]: Finished difference Result 13093 states and 19144 transitions. [2022-12-14 07:01:14,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 07:01:14,102 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 121 [2022-12-14 07:01:14,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:01:14,122 INFO L225 Difference]: With dead ends: 13093 [2022-12-14 07:01:14,122 INFO L226 Difference]: Without dead ends: 7389 [2022-12-14 07:01:14,134 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:01:14,135 INFO L413 NwaCegarLoop]: 2079 mSDtfsCounter, 410 mSDsluCounter, 3873 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 59 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 5952 SdHoareTripleChecker+Invalid, 580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 520 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-12-14 07:01:14,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [439 Valid, 5952 Invalid, 580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 520 Invalid, 1 Unknown, 0 Unchecked, 3.5s Time] [2022-12-14 07:01:14,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7389 states. [2022-12-14 07:01:14,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7389 to 5739. [2022-12-14 07:01:14,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5739 states, 3577 states have (on average 1.3047246295778585) internal successors, (4667), 3634 states have internal predecessors, (4667), 1742 states have call successors, (1742), 418 states have call predecessors, (1742), 419 states have return successors, (1827), 1723 states have call predecessors, (1827), 1741 states have call successors, (1827) [2022-12-14 07:01:14,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5739 states to 5739 states and 8236 transitions. [2022-12-14 07:01:14,371 INFO L78 Accepts]: Start accepts. Automaton has 5739 states and 8236 transitions. Word has length 121 [2022-12-14 07:01:14,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:01:14,372 INFO L495 AbstractCegarLoop]: Abstraction has 5739 states and 8236 transitions. [2022-12-14 07:01:14,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 07:01:14,372 INFO L276 IsEmpty]: Start isEmpty. Operand 5739 states and 8236 transitions. [2022-12-14 07:01:14,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2022-12-14 07:01:14,378 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:01:14,378 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:01:14,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 07:01:14,378 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:01:14,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:01:14,379 INFO L85 PathProgramCache]: Analyzing trace with hash -2190972, now seen corresponding path program 1 times [2022-12-14 07:01:14,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:01:14,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372456682] [2022-12-14 07:01:14,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:01:14,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:01:14,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:01:14,731 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2022-12-14 07:01:14,731 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:01:14,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372456682] [2022-12-14 07:01:14,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372456682] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:01:14,732 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:01:14,732 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:01:14,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271620300] [2022-12-14 07:01:14,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:01:14,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:01:14,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:01:14,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:01:14,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:01:14,733 INFO L87 Difference]: Start difference. First operand 5739 states and 8236 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2022-12-14 07:01:17,186 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 07:01:17,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:01:17,956 INFO L93 Difference]: Finished difference Result 11515 states and 16542 transitions. [2022-12-14 07:01:17,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:01:17,956 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 241 [2022-12-14 07:01:17,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:01:17,970 INFO L225 Difference]: With dead ends: 11515 [2022-12-14 07:01:17,971 INFO L226 Difference]: Without dead ends: 5795 [2022-12-14 07:01:17,981 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 07:01:17,982 INFO L413 NwaCegarLoop]: 1827 mSDtfsCounter, 4 mSDsluCounter, 1810 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 3637 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:01:17,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 3637 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 340 Invalid, 1 Unknown, 0 Unchecked, 3.0s Time] [2022-12-14 07:01:17,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5795 states. [2022-12-14 07:01:18,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5795 to 5759. [2022-12-14 07:01:18,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5759 states, 3597 states have (on average 1.303030303030303) internal successors, (4687), 3654 states have internal predecessors, (4687), 1742 states have call successors, (1742), 418 states have call predecessors, (1742), 419 states have return successors, (1827), 1723 states have call predecessors, (1827), 1741 states have call successors, (1827) [2022-12-14 07:01:18,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5759 states to 5759 states and 8256 transitions. [2022-12-14 07:01:18,243 INFO L78 Accepts]: Start accepts. Automaton has 5759 states and 8256 transitions. Word has length 241 [2022-12-14 07:01:18,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:01:18,244 INFO L495 AbstractCegarLoop]: Abstraction has 5759 states and 8256 transitions. [2022-12-14 07:01:18,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2022-12-14 07:01:18,244 INFO L276 IsEmpty]: Start isEmpty. Operand 5759 states and 8256 transitions. [2022-12-14 07:01:18,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2022-12-14 07:01:18,250 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:01:18,250 INFO L195 NwaCegarLoop]: trace histogram [14, 8, 8, 8, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:01:18,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 07:01:18,250 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:01:18,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:01:18,251 INFO L85 PathProgramCache]: Analyzing trace with hash -1628285664, now seen corresponding path program 1 times [2022-12-14 07:01:18,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:01:18,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331472285] [2022-12-14 07:01:18,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:01:18,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:01:18,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:01:18,572 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 10 proven. 18 refuted. 0 times theorem prover too weak. 369 trivial. 0 not checked. [2022-12-14 07:01:18,572 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:01:18,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331472285] [2022-12-14 07:01:18,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331472285] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 07:01:18,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [7159965] [2022-12-14 07:01:18,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:01:18,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:01:18,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17aff78e-9d69-4112-928d-f5489837f9fa/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:01:18,574 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17aff78e-9d69-4112-928d-f5489837f9fa/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:01:18,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17aff78e-9d69-4112-928d-f5489837f9fa/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 07:01:19,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:01:19,395 INFO L263 TraceCheckSpWp]: Trace formula consists of 3212 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 07:01:19,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:01:19,450 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 289 trivial. 0 not checked. [2022-12-14 07:01:19,450 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:01:19,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [7159965] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:01:19,451 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 07:01:19,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-12-14 07:01:19,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804453253] [2022-12-14 07:01:19,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:01:19,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:01:19,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:01:19,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:01:19,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:01:19,453 INFO L87 Difference]: Start difference. First operand 5759 states and 8256 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2022-12-14 07:01:21,872 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 07:01:22,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:01:22,306 INFO L93 Difference]: Finished difference Result 11619 states and 16698 transitions. [2022-12-14 07:01:22,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:01:22,307 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 297 [2022-12-14 07:01:22,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:01:22,322 INFO L225 Difference]: With dead ends: 11619 [2022-12-14 07:01:22,322 INFO L226 Difference]: Without dead ends: 5879 [2022-12-14 07:01:22,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 297 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 07:01:22,333 INFO L413 NwaCegarLoop]: 1838 mSDtfsCounter, 9 mSDsluCounter, 1822 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 3660 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-12-14 07:01:22,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 3660 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 325 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-12-14 07:01:22,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5879 states. [2022-12-14 07:01:22,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5879 to 5771. [2022-12-14 07:01:22,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5771 states, 3609 states have (on average 1.3020227209753394) internal successors, (4699), 3666 states have internal predecessors, (4699), 1742 states have call successors, (1742), 418 states have call predecessors, (1742), 419 states have return successors, (1827), 1723 states have call predecessors, (1827), 1741 states have call successors, (1827) [2022-12-14 07:01:22,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5771 states to 5771 states and 8268 transitions. [2022-12-14 07:01:22,588 INFO L78 Accepts]: Start accepts. Automaton has 5771 states and 8268 transitions. Word has length 297 [2022-12-14 07:01:22,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:01:22,588 INFO L495 AbstractCegarLoop]: Abstraction has 5771 states and 8268 transitions. [2022-12-14 07:01:22,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2022-12-14 07:01:22,589 INFO L276 IsEmpty]: Start isEmpty. Operand 5771 states and 8268 transitions. [2022-12-14 07:01:22,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 412 [2022-12-14 07:01:22,596 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:01:22,597 INFO L195 NwaCegarLoop]: trace histogram [26, 15, 9, 8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:01:22,611 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17aff78e-9d69-4112-928d-f5489837f9fa/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 07:01:22,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17aff78e-9d69-4112-928d-f5489837f9fa/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:01:22,798 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:01:22,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:01:22,798 INFO L85 PathProgramCache]: Analyzing trace with hash 1563480718, now seen corresponding path program 1 times [2022-12-14 07:01:22,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:01:22,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557186302] [2022-12-14 07:01:22,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:01:22,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:01:22,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:01:23,192 INFO L134 CoverageAnalysis]: Checked inductivity of 1189 backedges. 10 proven. 67 refuted. 0 times theorem prover too weak. 1112 trivial. 0 not checked. [2022-12-14 07:01:23,192 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:01:23,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557186302] [2022-12-14 07:01:23,192 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557186302] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 07:01:23,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [742520552] [2022-12-14 07:01:23,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:01:23,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:01:23,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17aff78e-9d69-4112-928d-f5489837f9fa/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:01:23,193 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17aff78e-9d69-4112-928d-f5489837f9fa/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:01:23,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17aff78e-9d69-4112-928d-f5489837f9fa/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 07:01:24,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:01:24,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 3692 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 07:01:24,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:01:24,155 INFO L134 CoverageAnalysis]: Checked inductivity of 1189 backedges. 344 proven. 1 refuted. 0 times theorem prover too weak. 844 trivial. 0 not checked. [2022-12-14 07:01:24,155 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:01:24,421 INFO L134 CoverageAnalysis]: Checked inductivity of 1189 backedges. 10 proven. 67 refuted. 0 times theorem prover too weak. 1112 trivial. 0 not checked. [2022-12-14 07:01:24,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [742520552] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 07:01:24,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1902153182] [2022-12-14 07:01:24,440 INFO L159 IcfgInterpreter]: Started Sifa with 199 locations of interest [2022-12-14 07:01:24,441 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 07:01:24,443 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 07:01:24,447 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 07:01:24,448 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs