./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-39a1d13-1-101_1a-drivers--block--virtio_blk.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aedb260-4912-4d42-bd72-1d0c8f719b6a/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aedb260-4912-4d42-bd72-1d0c8f719b6a/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aedb260-4912-4d42-bd72-1d0c8f719b6a/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aedb260-4912-4d42-bd72-1d0c8f719b6a/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-39a1d13-1-101_1a-drivers--block--virtio_blk.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aedb260-4912-4d42-bd72-1d0c8f719b6a/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aedb260-4912-4d42-bd72-1d0c8f719b6a/bin/utaipan-ByfvJB40ur --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 e621fe5569ce23da8663d1ba84e0ea76474750cbbbe06c56ff4e5d6732ec9411 --- 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-38b53e6 [2022-11-25 22:26:50,827 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:26:50,830 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:26:50,852 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:26:50,853 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:26:50,854 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:26:50,855 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:26:50,856 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:26:50,858 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:26:50,858 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:26:50,859 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:26:50,860 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:26:50,861 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:26:50,862 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:26:50,863 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:26:50,864 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:26:50,864 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:26:50,865 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:26:50,867 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:26:50,868 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:26:50,870 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:26:50,871 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:26:50,872 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:26:50,873 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:26:50,876 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:26:50,876 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:26:50,877 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:26:50,877 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:26:50,878 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:26:50,879 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:26:50,879 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:26:50,880 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:26:50,881 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:26:50,881 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:26:50,882 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:26:50,883 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:26:50,883 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:26:50,884 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:26:50,884 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:26:50,885 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:26:50,886 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:26:50,886 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aedb260-4912-4d42-bd72-1d0c8f719b6a/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-25 22:26:50,926 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:26:50,927 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:26:50,927 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:26:50,927 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:26:50,928 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:26:50,928 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:26:50,929 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:26:50,929 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:26:50,929 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:26:50,929 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 22:26:50,930 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:26:50,930 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:26:50,930 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 22:26:50,930 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 22:26:50,931 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:26:50,931 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 22:26:50,931 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 22:26:50,932 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 22:26:50,932 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:26:50,933 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 22:26:50,933 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:26:50,933 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:26:50,934 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:26:50,934 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:26:50,934 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:26:50,934 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:26:50,935 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:26:50,935 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:26:50,935 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:26:50,935 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:26:50,936 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:26:50,936 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 22:26:50,936 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:26:50,936 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:26:50,936 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 22:26:50,937 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 22:26:50,937 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:26:50,937 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:26:50,937 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_1aedb260-4912-4d42-bd72-1d0c8f719b6a/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aedb260-4912-4d42-bd72-1d0c8f719b6a/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e621fe5569ce23da8663d1ba84e0ea76474750cbbbe06c56ff4e5d6732ec9411 [2022-11-25 22:26:51,179 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:26:51,205 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:26:51,208 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:26:51,209 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:26:51,211 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:26:51,212 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aedb260-4912-4d42-bd72-1d0c8f719b6a/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-39a1d13-1-101_1a-drivers--block--virtio_blk.ko-entry_point.cil.out.i [2022-11-25 22:26:54,310 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:26:54,775 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:26:54,776 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aedb260-4912-4d42-bd72-1d0c8f719b6a/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-39a1d13-1-101_1a-drivers--block--virtio_blk.ko-entry_point.cil.out.i [2022-11-25 22:26:54,807 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aedb260-4912-4d42-bd72-1d0c8f719b6a/bin/utaipan-ByfvJB40ur/data/6ad30ebb0/db69ea2d9f0a4dacbce2e498ccc19d0a/FLAG473703c26 [2022-11-25 22:26:54,826 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aedb260-4912-4d42-bd72-1d0c8f719b6a/bin/utaipan-ByfvJB40ur/data/6ad30ebb0/db69ea2d9f0a4dacbce2e498ccc19d0a [2022-11-25 22:26:54,831 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:26:54,833 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:26:54,834 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:26:54,835 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:26:54,842 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:26:54,842 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:26:54" (1/1) ... [2022-11-25 22:26:54,843 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c7f6e49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:26:54, skipping insertion in model container [2022-11-25 22:26:54,843 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:26:54" (1/1) ... [2022-11-25 22:26:54,850 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:26:54,942 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:26:55,427 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-11-25 22:26:55,464 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-11-25 22:26:55,536 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 22:26:55,536 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-11-25 22:26:55,572 WARN L623 FunctionHandler]: Unknown extern function mempool_create [2022-11-25 22:26:55,714 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-25 22:26:55,718 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_dereference [2022-11-25 22:26:55,768 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:26:55,778 WARN L623 FunctionHandler]: Unknown extern function __get_free_pages [2022-11-25 22:26:55,791 WARN L623 FunctionHandler]: Unknown extern function kmem_cache_alloc_notrace [2022-11-25 22:26:55,843 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_1aedb260-4912-4d42-bd72-1d0c8f719b6a/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-39a1d13-1-101_1a-drivers--block--virtio_blk.ko-entry_point.cil.out.i[100586,100599] [2022-11-25 22:26:55,888 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-25 22:26:55,901 WARN L623 FunctionHandler]: Unknown extern function virtqueue_add_buf_gfp [2022-11-25 22:26:55,920 WARN L623 FunctionHandler]: Unknown extern function virtio_check_driver_offered_feature [2022-11-25 22:26:55,943 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 22:26:55,957 WARN L623 FunctionHandler]: Unknown extern function __blk_end_request_all [2022-11-25 22:26:55,957 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-11-25 22:26:55,958 WARN L623 FunctionHandler]: Unknown extern function mempool_free [2022-11-25 22:26:55,958 WARN L623 FunctionHandler]: Unknown extern function virtqueue_get_buf [2022-11-25 22:26:55,959 WARN L623 FunctionHandler]: Unknown extern function blk_start_queue [2022-11-25 22:26:55,963 WARN L623 FunctionHandler]: Unknown extern function mempool_alloc [2022-11-25 22:26:55,973 WARN L623 FunctionHandler]: Unknown extern function blk_rq_map_sg [2022-11-25 22:26:55,987 WARN L623 FunctionHandler]: Unknown extern function mempool_free [2022-11-25 22:26:55,995 WARN L623 FunctionHandler]: Unknown extern function blk_stop_queue [2022-11-25 22:26:55,997 WARN L623 FunctionHandler]: Unknown extern function blk_start_request [2022-11-25 22:26:55,997 WARN L623 FunctionHandler]: Unknown extern function blk_peek_request [2022-11-25 22:26:55,998 WARN L623 FunctionHandler]: Unknown extern function virtqueue_kick [2022-11-25 22:26:56,006 WARN L623 FunctionHandler]: Unknown extern function bio_map_kern [2022-11-25 22:26:56,011 WARN L623 FunctionHandler]: Unknown extern function bio_put [2022-11-25 22:26:56,014 WARN L623 FunctionHandler]: Unknown extern function blk_execute_rq [2022-11-25 22:26:56,027 WARN L623 FunctionHandler]: Unknown extern function scsi_cmd_ioctl [2022-11-25 22:26:56,052 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 22:26:56,053 WARN L623 FunctionHandler]: Unknown extern function sg_init_table [2022-11-25 22:26:56,057 WARN L623 FunctionHandler]: Unknown extern function alloc_disk [2022-11-25 22:26:56,057 WARN L623 FunctionHandler]: Unknown extern function blk_init_queue [2022-11-25 22:26:56,059 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-25 22:26:56,061 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-25 22:26:56,066 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-25 22:26:56,070 WARN L623 FunctionHandler]: Unknown extern function blk_queue_ordered [2022-11-25 22:26:56,071 WARN L623 FunctionHandler]: Unknown extern function blk_queue_ordered [2022-11-25 22:26:56,072 WARN L623 FunctionHandler]: Unknown extern function set_disk_ro [2022-11-25 22:26:56,076 WARN L623 FunctionHandler]: Unknown extern function blk_queue_max_segments [2022-11-25 22:26:56,077 WARN L623 FunctionHandler]: Unknown extern function blk_queue_bounce_limit [2022-11-25 22:26:56,077 WARN L623 FunctionHandler]: Unknown extern function blk_queue_max_hw_sectors [2022-11-25 22:26:56,080 WARN L623 FunctionHandler]: Unknown extern function blk_queue_max_segment_size [2022-11-25 22:26:56,081 WARN L623 FunctionHandler]: Unknown extern function blk_queue_max_segment_size [2022-11-25 22:26:56,082 WARN L623 FunctionHandler]: Unknown extern function blk_queue_logical_block_size [2022-11-25 22:26:56,083 WARN L623 FunctionHandler]: Unknown extern function blk_queue_physical_block_size [2022-11-25 22:26:56,084 WARN L623 FunctionHandler]: Unknown extern function blk_queue_alignment_offset [2022-11-25 22:26:56,085 WARN L623 FunctionHandler]: Unknown extern function blk_queue_io_min [2022-11-25 22:26:56,085 WARN L623 FunctionHandler]: Unknown extern function blk_queue_io_opt [2022-11-25 22:26:56,086 WARN L623 FunctionHandler]: Unknown extern function add_disk [2022-11-25 22:26:56,086 WARN L623 FunctionHandler]: Unknown extern function put_disk [2022-11-25 22:26:56,086 WARN L623 FunctionHandler]: Unknown extern function mempool_destroy [2022-11-25 22:26:56,087 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:26:56,097 WARN L623 FunctionHandler]: Unknown extern function del_gendisk [2022-11-25 22:26:56,097 WARN L623 FunctionHandler]: Unknown extern function blk_cleanup_queue [2022-11-25 22:26:56,098 WARN L623 FunctionHandler]: Unknown extern function put_disk [2022-11-25 22:26:56,098 WARN L623 FunctionHandler]: Unknown extern function mempool_destroy [2022-11-25 22:26:56,099 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:26:56,105 WARN L623 FunctionHandler]: Unknown extern function register_blkdev [2022-11-25 22:26:56,106 WARN L623 FunctionHandler]: Unknown extern function register_virtio_driver [2022-11-25 22:26:56,109 WARN L623 FunctionHandler]: Unknown extern function unregister_blkdev [2022-11-25 22:26:56,111 WARN L623 FunctionHandler]: Unknown extern function unregister_virtio_driver [2022-11-25 22:26:56,121 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-11-25 22:26:56,147 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:26:56,150 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:26:56,157 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:26:56,158 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:26:56,160 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:26:56,162 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:26:56,168 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:26:56,169 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:26:56,171 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:26:56,175 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:26:56,193 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:26:56,305 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-11-25 22:26:56,307 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-11-25 22:26:56,314 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 22:26:56,314 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-11-25 22:26:56,316 WARN L623 FunctionHandler]: Unknown extern function mempool_create [2022-11-25 22:26:56,326 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-25 22:26:56,327 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_dereference [2022-11-25 22:26:56,337 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:26:56,345 WARN L623 FunctionHandler]: Unknown extern function __get_free_pages [2022-11-25 22:26:56,347 WARN L623 FunctionHandler]: Unknown extern function kmem_cache_alloc_notrace [2022-11-25 22:26:56,350 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_1aedb260-4912-4d42-bd72-1d0c8f719b6a/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-39a1d13-1-101_1a-drivers--block--virtio_blk.ko-entry_point.cil.out.i[100586,100599] [2022-11-25 22:26:56,404 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-25 22:26:56,405 WARN L623 FunctionHandler]: Unknown extern function virtqueue_add_buf_gfp [2022-11-25 22:26:56,406 WARN L623 FunctionHandler]: Unknown extern function virtio_check_driver_offered_feature [2022-11-25 22:26:56,450 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 22:26:56,453 WARN L623 FunctionHandler]: Unknown extern function __blk_end_request_all [2022-11-25 22:26:56,454 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-11-25 22:26:56,454 WARN L623 FunctionHandler]: Unknown extern function mempool_free [2022-11-25 22:26:56,454 WARN L623 FunctionHandler]: Unknown extern function virtqueue_get_buf [2022-11-25 22:26:56,455 WARN L623 FunctionHandler]: Unknown extern function blk_start_queue [2022-11-25 22:26:56,460 WARN L623 FunctionHandler]: Unknown extern function mempool_alloc [2022-11-25 22:26:56,464 WARN L623 FunctionHandler]: Unknown extern function blk_rq_map_sg [2022-11-25 22:26:56,467 WARN L623 FunctionHandler]: Unknown extern function mempool_free [2022-11-25 22:26:56,469 WARN L623 FunctionHandler]: Unknown extern function blk_stop_queue [2022-11-25 22:26:56,469 WARN L623 FunctionHandler]: Unknown extern function blk_start_request [2022-11-25 22:26:56,470 WARN L623 FunctionHandler]: Unknown extern function blk_peek_request [2022-11-25 22:26:56,470 WARN L623 FunctionHandler]: Unknown extern function virtqueue_kick [2022-11-25 22:26:56,471 WARN L623 FunctionHandler]: Unknown extern function bio_map_kern [2022-11-25 22:26:56,479 WARN L623 FunctionHandler]: Unknown extern function bio_put [2022-11-25 22:26:56,480 WARN L623 FunctionHandler]: Unknown extern function blk_execute_rq [2022-11-25 22:26:56,488 WARN L623 FunctionHandler]: Unknown extern function scsi_cmd_ioctl [2022-11-25 22:26:56,499 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 22:26:56,500 WARN L623 FunctionHandler]: Unknown extern function sg_init_table [2022-11-25 22:26:56,501 WARN L623 FunctionHandler]: Unknown extern function alloc_disk [2022-11-25 22:26:56,501 WARN L623 FunctionHandler]: Unknown extern function blk_init_queue [2022-11-25 22:26:56,509 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-25 22:26:56,510 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-25 22:26:56,511 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-25 22:26:56,515 WARN L623 FunctionHandler]: Unknown extern function blk_queue_ordered [2022-11-25 22:26:56,520 WARN L623 FunctionHandler]: Unknown extern function blk_queue_ordered [2022-11-25 22:26:56,520 WARN L623 FunctionHandler]: Unknown extern function set_disk_ro [2022-11-25 22:26:56,523 WARN L623 FunctionHandler]: Unknown extern function blk_queue_max_segments [2022-11-25 22:26:56,524 WARN L623 FunctionHandler]: Unknown extern function blk_queue_bounce_limit [2022-11-25 22:26:56,524 WARN L623 FunctionHandler]: Unknown extern function blk_queue_max_hw_sectors [2022-11-25 22:26:56,525 WARN L623 FunctionHandler]: Unknown extern function blk_queue_max_segment_size [2022-11-25 22:26:56,525 WARN L623 FunctionHandler]: Unknown extern function blk_queue_max_segment_size [2022-11-25 22:26:56,525 WARN L623 FunctionHandler]: Unknown extern function blk_queue_logical_block_size [2022-11-25 22:26:56,526 WARN L623 FunctionHandler]: Unknown extern function blk_queue_physical_block_size [2022-11-25 22:26:56,527 WARN L623 FunctionHandler]: Unknown extern function blk_queue_alignment_offset [2022-11-25 22:26:56,528 WARN L623 FunctionHandler]: Unknown extern function blk_queue_io_min [2022-11-25 22:26:56,528 WARN L623 FunctionHandler]: Unknown extern function blk_queue_io_opt [2022-11-25 22:26:56,529 WARN L623 FunctionHandler]: Unknown extern function add_disk [2022-11-25 22:26:56,529 WARN L623 FunctionHandler]: Unknown extern function put_disk [2022-11-25 22:26:56,529 WARN L623 FunctionHandler]: Unknown extern function mempool_destroy [2022-11-25 22:26:56,532 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:26:56,537 WARN L623 FunctionHandler]: Unknown extern function del_gendisk [2022-11-25 22:26:56,538 WARN L623 FunctionHandler]: Unknown extern function blk_cleanup_queue [2022-11-25 22:26:56,541 WARN L623 FunctionHandler]: Unknown extern function put_disk [2022-11-25 22:26:56,542 WARN L623 FunctionHandler]: Unknown extern function mempool_destroy [2022-11-25 22:26:56,545 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:26:56,546 WARN L623 FunctionHandler]: Unknown extern function register_blkdev [2022-11-25 22:26:56,547 WARN L623 FunctionHandler]: Unknown extern function register_virtio_driver [2022-11-25 22:26:56,548 WARN L623 FunctionHandler]: Unknown extern function unregister_blkdev [2022-11-25 22:26:56,548 WARN L623 FunctionHandler]: Unknown extern function unregister_virtio_driver [2022-11-25 22:26:56,550 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-11-25 22:26:56,556 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:26:56,557 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:26:56,559 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:26:56,560 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:26:56,560 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:26:56,561 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:26:56,563 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:26:56,564 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:26:56,565 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:26:56,566 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:26:56,602 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:26:56,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:26:56 WrapperNode [2022-11-25 22:26:56,603 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:26:56,604 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:26:56,604 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:26:56,604 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:26:56,612 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:26:56" (1/1) ... [2022-11-25 22:26:56,644 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:26:56" (1/1) ... [2022-11-25 22:26:56,745 INFO L138 Inliner]: procedures = 155, calls = 552, calls flagged for inlining = 94, calls inlined = 94, statements flattened = 1915 [2022-11-25 22:26:56,751 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:26:56,752 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:26:56,752 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:26:56,752 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:26:56,763 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:26:56" (1/1) ... [2022-11-25 22:26:56,763 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:26:56" (1/1) ... [2022-11-25 22:26:56,798 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:26:56" (1/1) ... [2022-11-25 22:26:56,801 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:26:56" (1/1) ... [2022-11-25 22:26:56,875 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:26:56" (1/1) ... [2022-11-25 22:26:56,883 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:26:56" (1/1) ... [2022-11-25 22:26:56,890 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:26:56" (1/1) ... [2022-11-25 22:26:56,898 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:26:56" (1/1) ... [2022-11-25 22:26:56,913 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:26:56,914 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:26:56,914 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:26:56,914 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:26:56,915 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:26:56" (1/1) ... [2022-11-25 22:26:56,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:26:56,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aedb260-4912-4d42-bd72-1d0c8f719b6a/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:26:56,953 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aedb260-4912-4d42-bd72-1d0c8f719b6a/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:26:56,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aedb260-4912-4d42-bd72-1d0c8f719b6a/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:26:56,996 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_max_segment_size [2022-11-25 22:26:56,996 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_max_segment_size [2022-11-25 22:26:56,996 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_config_buf [2022-11-25 22:26:56,996 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_config_buf [2022-11-25 22:26:56,996 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-25 22:26:56,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-25 22:26:56,997 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 22:26:56,997 INFO L130 BoogieDeclarations]: Found specification of procedure req_get_ioprio [2022-11-25 22:26:56,997 INFO L138 BoogieDeclarations]: Found implementation of procedure req_get_ioprio [2022-11-25 22:26:56,997 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~TO~VOID [2022-11-25 22:26:56,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~TO~VOID [2022-11-25 22:26:56,997 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-25 22:26:56,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-25 22:26:56,998 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_free [2022-11-25 22:26:56,998 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_free [2022-11-25 22:26:56,998 INFO L130 BoogieDeclarations]: Found specification of procedure sg_set_buf [2022-11-25 22:26:56,998 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_set_buf [2022-11-25 22:26:56,998 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-25 22:26:56,999 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-25 22:26:56,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 22:26:56,999 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-25 22:26:56,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-25 22:26:56,999 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-25 22:26:56,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-25 22:26:56,999 INFO L130 BoogieDeclarations]: Found specification of procedure index_to_minor [2022-11-25 22:26:57,000 INFO L138 BoogieDeclarations]: Found implementation of procedure index_to_minor [2022-11-25 22:26:57,000 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-25 22:26:57,000 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-25 22:26:57,000 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 22:26:57,000 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2022-11-25 22:26:57,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2022-11-25 22:26:57,000 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc_notrace [2022-11-25 22:26:57,001 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-25 22:26:57,001 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-25 22:26:57,001 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 22:26:57,001 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_has_feature [2022-11-25 22:26:57,001 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_has_feature [2022-11-25 22:26:57,001 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 22:26:57,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 22:26:57,002 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-25 22:26:57,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-25 22:26:57,002 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_remove [2022-11-25 22:26:57,002 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_remove [2022-11-25 22:26:57,002 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_destroy [2022-11-25 22:26:57,002 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_destroy [2022-11-25 22:26:57,003 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 22:26:57,003 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2022-11-25 22:26:57,003 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2022-11-25 22:26:57,003 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-25 22:26:57,003 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-25 22:26:57,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-25 22:26:57,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-25 22:26:57,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 22:26:57,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-25 22:26:57,004 INFO L130 BoogieDeclarations]: Found specification of procedure trace_kmalloc [2022-11-25 22:26:57,004 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_kmalloc [2022-11-25 22:26:57,004 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2022-11-25 22:26:57,004 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2022-11-25 22:26:57,004 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_ordered [2022-11-25 22:26:57,005 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_ordered [2022-11-25 22:26:57,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 22:26:57,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-25 22:26:57,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-25 22:26:57,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:26:57,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:26:57,005 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-25 22:26:57,006 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-25 22:26:57,489 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:26:57,492 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:26:58,123 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-25 22:26:58,204 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2022-11-25 22:26:59,000 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:26:59,714 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:26:59,714 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 22:26:59,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:26:59 BoogieIcfgContainer [2022-11-25 22:26:59,724 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:26:59,727 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:26:59,727 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:26:59,730 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:26:59,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:26:54" (1/3) ... [2022-11-25 22:26:59,733 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@652bb17c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:26:59, skipping insertion in model container [2022-11-25 22:26:59,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:26:56" (2/3) ... [2022-11-25 22:26:59,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@652bb17c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:26:59, skipping insertion in model container [2022-11-25 22:26:59,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:26:59" (3/3) ... [2022-11-25 22:26:59,739 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-stable-39a1d13-1-101_1a-drivers--block--virtio_blk.ko-entry_point.cil.out.i [2022-11-25 22:26:59,760 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:26:59,760 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 22:26:59,840 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:26:59,849 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;@46e0b6e1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:26:59,849 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 22:26:59,855 INFO L276 IsEmpty]: Start isEmpty. Operand has 325 states, 210 states have (on average 1.3428571428571427) internal successors, (282), 223 states have internal predecessors, (282), 88 states have call successors, (88), 27 states have call predecessors, (88), 25 states have return successors, (83), 83 states have call predecessors, (83), 83 states have call successors, (83) [2022-11-25 22:26:59,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-25 22:26:59,868 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:26:59,871 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:26:59,872 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:26:59,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:26:59,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1964534349, now seen corresponding path program 1 times [2022-11-25 22:26:59,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:26:59,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932115346] [2022-11-25 22:26:59,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:26:59,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:27:00,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:27:00,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:27:00,337 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:27:00,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932115346] [2022-11-25 22:27:00,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932115346] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:27:00,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:27:00,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:27:00,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932234466] [2022-11-25 22:27:00,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:27:00,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:27:00,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:27:00,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:27:00,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:27:00,380 INFO L87 Difference]: Start difference. First operand has 325 states, 210 states have (on average 1.3428571428571427) internal successors, (282), 223 states have internal predecessors, (282), 88 states have call successors, (88), 27 states have call predecessors, (88), 25 states have return successors, (83), 83 states have call predecessors, (83), 83 states have call successors, (83) Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 22:27:01,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:27:01,214 INFO L93 Difference]: Finished difference Result 900 states and 1255 transitions. [2022-11-25 22:27:01,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:27:01,217 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2022-11-25 22:27:01,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:27:01,239 INFO L225 Difference]: With dead ends: 900 [2022-11-25 22:27:01,239 INFO L226 Difference]: Without dead ends: 551 [2022-11-25 22:27:01,250 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 [2022-11-25 22:27:01,261 INFO L413 NwaCegarLoop]: 414 mSDtfsCounter, 377 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 377 SdHoareTripleChecker+Valid, 752 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-25 22:27:01,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [377 Valid, 752 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-25 22:27:01,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2022-11-25 22:27:01,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 548. [2022-11-25 22:27:01,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 356 states have (on average 1.2696629213483146) internal successors, (452), 365 states have internal predecessors, (452), 148 states have call successors, (148), 44 states have call predecessors, (148), 43 states have return successors, (146), 146 states have call predecessors, (146), 146 states have call successors, (146) [2022-11-25 22:27:01,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 746 transitions. [2022-11-25 22:27:01,367 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 746 transitions. Word has length 18 [2022-11-25 22:27:01,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:27:01,368 INFO L495 AbstractCegarLoop]: Abstraction has 548 states and 746 transitions. [2022-11-25 22:27:01,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 22:27:01,368 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 746 transitions. [2022-11-25 22:27:01,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-25 22:27:01,370 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:27:01,371 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:27:01,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 22:27:01,371 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:27:01,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:27:01,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1572982182, now seen corresponding path program 1 times [2022-11-25 22:27:01,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:27:01,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039356907] [2022-11-25 22:27:01,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:27:01,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:27:01,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:27:01,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:27:01,560 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:27:01,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039356907] [2022-11-25 22:27:01,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039356907] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:27:01,560 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:27:01,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:27:01,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110087990] [2022-11-25 22:27:01,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:27:01,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:27:01,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:27:01,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:27:01,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:27:01,563 INFO L87 Difference]: Start difference. First operand 548 states and 746 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 22:27:02,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:27:02,253 INFO L93 Difference]: Finished difference Result 1070 states and 1454 transitions. [2022-11-25 22:27:02,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:27:02,254 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2022-11-25 22:27:02,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:27:02,265 INFO L225 Difference]: With dead ends: 1070 [2022-11-25 22:27:02,265 INFO L226 Difference]: Without dead ends: 1064 [2022-11-25 22:27:02,266 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 [2022-11-25 22:27:02,267 INFO L413 NwaCegarLoop]: 390 mSDtfsCounter, 362 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 697 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-25 22:27:02,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [362 Valid, 697 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-25 22:27:02,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1064 states. [2022-11-25 22:27:02,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1064 to 1064. [2022-11-25 22:27:02,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1064 states, 692 states have (on average 1.2658959537572254) internal successors, (876), 709 states have internal predecessors, (876), 285 states have call successors, (285), 87 states have call predecessors, (285), 86 states have return successors, (283), 283 states have call predecessors, (283), 283 states have call successors, (283) [2022-11-25 22:27:02,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1064 states to 1064 states and 1444 transitions. [2022-11-25 22:27:02,362 INFO L78 Accepts]: Start accepts. Automaton has 1064 states and 1444 transitions. Word has length 21 [2022-11-25 22:27:02,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:27:02,362 INFO L495 AbstractCegarLoop]: Abstraction has 1064 states and 1444 transitions. [2022-11-25 22:27:02,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 22:27:02,363 INFO L276 IsEmpty]: Start isEmpty. Operand 1064 states and 1444 transitions. [2022-11-25 22:27:02,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-25 22:27:02,375 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:27:02,376 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:27:02,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 22:27:02,378 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:27:02,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:27:02,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1946126181, now seen corresponding path program 1 times [2022-11-25 22:27:02,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:27:02,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246636411] [2022-11-25 22:27:02,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:27:02,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:27:02,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:27:02,566 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-25 22:27:02,566 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:27:02,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246636411] [2022-11-25 22:27:02,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246636411] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:27:02,567 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:27:02,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:27:02,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503844627] [2022-11-25 22:27:02,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:27:02,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:27:02,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:27:02,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:27:02,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:27:02,569 INFO L87 Difference]: Start difference. First operand 1064 states and 1444 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-25 22:27:03,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:27:03,273 INFO L93 Difference]: Finished difference Result 3058 states and 4130 transitions. [2022-11-25 22:27:03,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:27:03,274 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 68 [2022-11-25 22:27:03,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:27:03,287 INFO L225 Difference]: With dead ends: 3058 [2022-11-25 22:27:03,287 INFO L226 Difference]: Without dead ends: 1998 [2022-11-25 22:27:03,292 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 [2022-11-25 22:27:03,293 INFO L413 NwaCegarLoop]: 392 mSDtfsCounter, 326 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 701 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-25 22:27:03,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [326 Valid, 701 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-25 22:27:03,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1998 states. [2022-11-25 22:27:03,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1998 to 1993. [2022-11-25 22:27:03,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1993 states, 1289 states have (on average 1.2583397982932505) internal successors, (1622), 1322 states have internal predecessors, (1622), 532 states have call successors, (532), 172 states have call predecessors, (532), 171 states have return successors, (530), 530 states have call predecessors, (530), 530 states have call successors, (530) [2022-11-25 22:27:03,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1993 states to 1993 states and 2684 transitions. [2022-11-25 22:27:03,418 INFO L78 Accepts]: Start accepts. Automaton has 1993 states and 2684 transitions. Word has length 68 [2022-11-25 22:27:03,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:27:03,420 INFO L495 AbstractCegarLoop]: Abstraction has 1993 states and 2684 transitions. [2022-11-25 22:27:03,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-25 22:27:03,424 INFO L276 IsEmpty]: Start isEmpty. Operand 1993 states and 2684 transitions. [2022-11-25 22:27:03,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-25 22:27:03,432 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:27:03,433 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:27:03,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 22:27:03,433 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:27:03,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:27:03,434 INFO L85 PathProgramCache]: Analyzing trace with hash -1341161214, now seen corresponding path program 1 times [2022-11-25 22:27:03,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:27:03,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484928998] [2022-11-25 22:27:03,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:27:03,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:27:03,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:27:04,060 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-11-25 22:27:04,061 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:27:04,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484928998] [2022-11-25 22:27:04,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484928998] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:27:04,061 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:27:04,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 22:27:04,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952688180] [2022-11-25 22:27:04,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:27:04,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:27:04,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:27:04,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:27:04,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:27:04,063 INFO L87 Difference]: Start difference. First operand 1993 states and 2684 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-25 22:27:04,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:27:04,902 INFO L93 Difference]: Finished difference Result 3047 states and 4143 transitions. [2022-11-25 22:27:04,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 22:27:04,903 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 86 [2022-11-25 22:27:04,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:27:04,920 INFO L225 Difference]: With dead ends: 3047 [2022-11-25 22:27:04,920 INFO L226 Difference]: Without dead ends: 2009 [2022-11-25 22:27:04,928 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 [2022-11-25 22:27:04,931 INFO L413 NwaCegarLoop]: 319 mSDtfsCounter, 0 mSDsluCounter, 942 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1261 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-25 22:27:04,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1261 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-25 22:27:04,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2009 states. [2022-11-25 22:27:05,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2009 to 1997. [2022-11-25 22:27:05,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1997 states, 1291 states have (on average 1.2579395817195973) internal successors, (1624), 1326 states have internal predecessors, (1624), 532 states have call successors, (532), 172 states have call predecessors, (532), 173 states have return successors, (546), 530 states have call predecessors, (546), 530 states have call successors, (546) [2022-11-25 22:27:05,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1997 states to 1997 states and 2702 transitions. [2022-11-25 22:27:05,116 INFO L78 Accepts]: Start accepts. Automaton has 1997 states and 2702 transitions. Word has length 86 [2022-11-25 22:27:05,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:27:05,119 INFO L495 AbstractCegarLoop]: Abstraction has 1997 states and 2702 transitions. [2022-11-25 22:27:05,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-25 22:27:05,120 INFO L276 IsEmpty]: Start isEmpty. Operand 1997 states and 2702 transitions. [2022-11-25 22:27:05,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-25 22:27:05,129 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:27:05,129 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:27:05,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 22:27:05,130 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:27:05,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:27:05,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1064324281, now seen corresponding path program 1 times [2022-11-25 22:27:05,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:27:05,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725700771] [2022-11-25 22:27:05,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:27:05,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:27:05,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:27:05,584 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-11-25 22:27:05,584 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:27:05,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725700771] [2022-11-25 22:27:05,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725700771] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:27:05,585 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:27:05,585 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:27:05,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635698993] [2022-11-25 22:27:05,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:27:05,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:27:05,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:27:05,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:27:05,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:27:05,588 INFO L87 Difference]: Start difference. First operand 1997 states and 2702 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-25 22:27:06,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:27:06,133 INFO L93 Difference]: Finished difference Result 3982 states and 5388 transitions. [2022-11-25 22:27:06,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:27:06,134 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 97 [2022-11-25 22:27:06,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:27:06,150 INFO L225 Difference]: With dead ends: 3982 [2022-11-25 22:27:06,150 INFO L226 Difference]: Without dead ends: 1998 [2022-11-25 22:27:06,158 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 [2022-11-25 22:27:06,159 INFO L413 NwaCegarLoop]: 319 mSDtfsCounter, 0 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 638 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-25 22:27:06,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 638 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-25 22:27:06,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1998 states. [2022-11-25 22:27:06,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1998 to 1998. [2022-11-25 22:27:06,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1998 states, 1292 states have (on average 1.2577399380804954) internal successors, (1625), 1327 states have internal predecessors, (1625), 532 states have call successors, (532), 172 states have call predecessors, (532), 173 states have return successors, (546), 530 states have call predecessors, (546), 530 states have call successors, (546) [2022-11-25 22:27:06,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1998 states to 1998 states and 2703 transitions. [2022-11-25 22:27:06,297 INFO L78 Accepts]: Start accepts. Automaton has 1998 states and 2703 transitions. Word has length 97 [2022-11-25 22:27:06,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:27:06,297 INFO L495 AbstractCegarLoop]: Abstraction has 1998 states and 2703 transitions. [2022-11-25 22:27:06,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-25 22:27:06,298 INFO L276 IsEmpty]: Start isEmpty. Operand 1998 states and 2703 transitions. [2022-11-25 22:27:06,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-25 22:27:06,307 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:27:06,308 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:27:06,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 22:27:06,308 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:27:06,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:27:06,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1117660192, now seen corresponding path program 1 times [2022-11-25 22:27:06,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:27:06,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614533019] [2022-11-25 22:27:06,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:27:06,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:27:06,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:27:06,729 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-11-25 22:27:06,732 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:27:06,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614533019] [2022-11-25 22:27:06,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614533019] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 22:27:06,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [565765951] [2022-11-25 22:27:06,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:27:06,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:27:06,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aedb260-4912-4d42-bd72-1d0c8f719b6a/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:27:06,738 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aedb260-4912-4d42-bd72-1d0c8f719b6a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:27:06,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aedb260-4912-4d42-bd72-1d0c8f719b6a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 22:27:07,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:27:07,239 INFO L263 TraceCheckSpWp]: Trace formula consists of 1016 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 22:27:07,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:27:07,326 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-11-25 22:27:07,326 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:27:07,434 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-11-25 22:27:07,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [565765951] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:27:07,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [344423212] [2022-11-25 22:27:07,470 INFO L159 IcfgInterpreter]: Started Sifa with 68 locations of interest [2022-11-25 22:27:07,470 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 22:27:07,474 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 22:27:07,480 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 22:27:07,480 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 22:27:07,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:08,254 INFO L321 Elim1Store]: treesize reduction 252, result has 33.5 percent of original size [2022-11-25 22:27:08,255 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 17 select indices, 17 select index equivalence classes, 122 disjoint index pairs (out of 136 index pairs), introduced 17 new quantified variables, introduced 28 case distinctions, treesize of input 92 treesize of output 193 [2022-11-25 22:27:08,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:08,411 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 15 select indices, 15 select index equivalence classes, 121 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 126 [2022-11-25 22:27:09,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:09,343 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 17 select indices, 17 select index equivalence classes, 136 disjoint index pairs (out of 136 index pairs), introduced 17 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 52 [2022-11-25 22:27:09,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:09,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:09,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:09,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:09,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:09,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:09,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:09,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:09,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:09,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:09,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:09,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:09,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:09,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:09,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:09,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:09,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:09,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:09,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:09,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:09,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:09,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:09,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:09,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:09,468 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 45 select indices, 45 select index equivalence classes, 96 disjoint index pairs (out of 990 index pairs), introduced 45 new quantified variables, introduced 0 case distinctions, treesize of input 342 treesize of output 136 [2022-11-25 22:27:09,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:09,555 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 16 select indices, 16 select index equivalence classes, 121 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 49 [2022-11-25 22:27:10,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,195 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 17 select indices, 17 select index equivalence classes, 136 disjoint index pairs (out of 136 index pairs), introduced 17 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 52 [2022-11-25 22:27:10,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,322 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 45 select indices, 45 select index equivalence classes, 96 disjoint index pairs (out of 990 index pairs), introduced 45 new quantified variables, introduced 0 case distinctions, treesize of input 342 treesize of output 136 [2022-11-25 22:27:10,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,387 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 16 select indices, 16 select index equivalence classes, 121 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 49 [2022-11-25 22:27:10,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,785 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 29 select indices, 29 select index equivalence classes, 205 disjoint index pairs (out of 406 index pairs), introduced 29 new quantified variables, introduced 0 case distinctions, treesize of input 274 treesize of output 357 [2022-11-25 22:27:10,853 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-25 22:27:10,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:10,931 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 29 select indices, 29 select index equivalence classes, 205 disjoint index pairs (out of 406 index pairs), introduced 29 new quantified variables, introduced 0 case distinctions, treesize of input 272 treesize of output 355 [2022-11-25 22:27:11,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:11,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:11,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:11,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:11,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:11,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:11,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:11,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:11,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:11,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:11,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:11,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:11,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:11,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:11,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:11,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:11,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:11,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:11,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:11,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:11,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:11,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:11,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:11,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:11,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:11,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:11,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:11,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:11,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:11,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:11,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:11,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:11,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:11,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:11,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:11,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:11,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:11,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:11,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:11,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:11,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:11,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:11,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:11,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:11,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:11,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:11,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:11,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:11,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:11,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:11,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:11,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:11,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:11,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:11,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:11,873 INFO L321 Elim1Store]: treesize reduction 100, result has 13.0 percent of original size [2022-11-25 22:27:11,874 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 30 select indices, 30 select index equivalence classes, 258 disjoint index pairs (out of 435 index pairs), introduced 30 new quantified variables, introduced 31 case distinctions, treesize of input 1449 treesize of output 1365 [2022-11-25 22:27:12,013 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1447 treesize of output 1446 [2022-11-25 22:27:12,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:12,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:12,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:12,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:12,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:12,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:12,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:12,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:12,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:12,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:12,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:12,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:12,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:12,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:12,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:12,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:12,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:12,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:12,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:12,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:12,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:12,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:12,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:12,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:12,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:12,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:12,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:12,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:12,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:12,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:12,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:12,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:12,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:12,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:12,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:12,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:12,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:12,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:12,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:12,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:12,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:12,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:12,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:12,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:12,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:12,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:12,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:12,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:12,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:12,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:12,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:12,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:12,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:12,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:12,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:12,393 INFO L321 Elim1Store]: treesize reduction 96, result has 13.5 percent of original size [2022-11-25 22:27:12,394 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 30 select indices, 30 select index equivalence classes, 258 disjoint index pairs (out of 435 index pairs), introduced 30 new quantified variables, introduced 31 case distinctions, treesize of input 1447 treesize of output 1363 [2022-11-25 22:27:12,900 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-25 22:27:12,942 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-25 22:27:12,957 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-25 22:27:16,314 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 22:27:16,350 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-25 22:27:16,539 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-25 22:27:16,545 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-25 22:27:16,950 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 22:27:17,000 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 22:27:17,302 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 22:27:17,335 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 22:27:36,994 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 22:27:37,064 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 22:27:43,005 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 22:27:43,058 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 22:27:45,236 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-25 22:27:45,436 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-25 22:27:45,486 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-25 22:27:45,920 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 22:27:58,786 INFO L321 Elim1Store]: treesize reduction 28, result has 55.6 percent of original size [2022-11-25 22:27:58,787 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 1047 treesize of output 1074 [2022-11-25 22:28:02,929 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 22:28:43,369 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 22:28:43,370 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 5211 treesize of output 5409