./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows 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_a0a36ebb-0c80-46c5-83ca-b9f8ae889d7d/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a36ebb-0c80-46c5-83ca-b9f8ae889d7d/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_a0a36ebb-0c80-46c5-83ca-b9f8ae889d7d/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a36ebb-0c80-46c5-83ca-b9f8ae889d7d/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a36ebb-0c80-46c5-83ca-b9f8ae889d7d/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a36ebb-0c80-46c5-83ca-b9f8ae889d7d/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e3b9005361fd0095f8dbb62f5fee3acdc88198cbc01de43b11979176397f6891 --- 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 [2022-11-26 00:05:06,455 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:05:06,458 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:05:06,502 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:05:06,504 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:05:06,506 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:05:06,509 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:05:06,514 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:05:06,516 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:05:06,518 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:05:06,520 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:05:06,523 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:05:06,525 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:05:06,528 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:05:06,530 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:05:06,532 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:05:06,534 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:05:06,537 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:05:06,539 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:05:06,543 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:05:06,547 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:05:06,551 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:05:06,553 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:05:06,553 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:05:06,557 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:05:06,557 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:05:06,558 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:05:06,559 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:05:06,559 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:05:06,560 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:05:06,560 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:05:06,561 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:05:06,568 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:05:06,571 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:05:06,573 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:05:06,573 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:05:06,574 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:05:06,574 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:05:06,575 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:05:06,578 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:05:06,579 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:05:06,588 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a36ebb-0c80-46c5-83ca-b9f8ae889d7d/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-26 00:05:06,648 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:05:06,648 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:05:06,649 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:05:06,649 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:05:06,650 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:05:06,650 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:05:06,650 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:05:06,651 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:05:06,651 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:05:06,651 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:05:06,652 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:05:06,653 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:05:06,653 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:05:06,653 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:05:06,653 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:05:06,654 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:05:06,654 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:05:06,654 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:05:06,655 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:05:06,655 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 00:05:06,655 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:05:06,655 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:05:06,656 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:05:06,656 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:05:06,656 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:05:06,656 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-26 00:05:06,657 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:05:06,657 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:05:06,657 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:05:06,658 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:05:06,658 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:05:06,658 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:05:06,659 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:05:06,659 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:05:06,659 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:05:06,659 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:05:06,659 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:05:06,660 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:05:06,660 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:05:06,660 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:05:06,660 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_a0a36ebb-0c80-46c5-83ca-b9f8ae889d7d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a36ebb-0c80-46c5-83ca-b9f8ae889d7d/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3b9005361fd0095f8dbb62f5fee3acdc88198cbc01de43b11979176397f6891 [2022-11-26 00:05:06,911 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:05:06,946 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:05:06,948 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:05:06,949 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:05:06,950 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:05:06,951 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a36ebb-0c80-46c5-83ca-b9f8ae889d7d/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i [2022-11-26 00:05:10,019 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:05:10,632 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:05:10,632 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a36ebb-0c80-46c5-83ca-b9f8ae889d7d/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i [2022-11-26 00:05:10,663 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a36ebb-0c80-46c5-83ca-b9f8ae889d7d/bin/utaipan-ByfvJB40ur/data/63775db5f/dea944d2cbe9405a97d44fcef5c8cbec/FLAGad10f3b88 [2022-11-26 00:05:10,677 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a36ebb-0c80-46c5-83ca-b9f8ae889d7d/bin/utaipan-ByfvJB40ur/data/63775db5f/dea944d2cbe9405a97d44fcef5c8cbec [2022-11-26 00:05:10,680 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:05:10,681 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:05:10,683 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:05:10,683 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:05:10,687 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:05:10,687 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:05:10" (1/1) ... [2022-11-26 00:05:10,688 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38fca0d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:10, skipping insertion in model container [2022-11-26 00:05:10,689 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:05:10" (1/1) ... [2022-11-26 00:05:10,696 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:05:10,797 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:05:11,422 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-11-26 00:05:11,436 WARN L623 FunctionHandler]: Unknown extern function __list_del_entry [2022-11-26 00:05:11,541 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-11-26 00:05:11,627 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-26 00:05:11,631 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-11-26 00:05:11,633 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-11-26 00:05:11,634 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_fmt [2022-11-26 00:05:11,771 WARN L623 FunctionHandler]: Unknown extern function get_device [2022-11-26 00:05:11,777 WARN L623 FunctionHandler]: Unknown extern function kmem_cache_alloc [2022-11-26 00:05:11,779 WARN L623 FunctionHandler]: Unknown extern function blk_get_request [2022-11-26 00:05:11,781 WARN L623 FunctionHandler]: Unknown extern function __scsi_get_command [2022-11-26 00:05:11,786 WARN L623 FunctionHandler]: Unknown extern function blk_put_request [2022-11-26 00:05:11,787 WARN L623 FunctionHandler]: Unknown extern function kmem_cache_free [2022-11-26 00:05:11,788 WARN L623 FunctionHandler]: Unknown extern function put_device [2022-11-26 00:05:11,791 WARN L623 FunctionHandler]: Unknown extern function kmem_cache_free [2022-11-26 00:05:11,792 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-26 00:05:11,793 WARN L623 FunctionHandler]: Unknown extern function __blk_put_request [2022-11-26 00:05:11,794 WARN L623 FunctionHandler]: Unknown extern function __scsi_put_command [2022-11-26 00:05:11,803 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-26 00:05:11,804 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-11-26 00:05:11,810 WARN L623 FunctionHandler]: Unknown extern function blk_rq_unmap_user [2022-11-26 00:05:11,826 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-11-26 00:05:11,827 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-11-26 00:05:11,828 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-26 00:05:11,832 WARN L623 FunctionHandler]: Unknown extern function __scsi_alloc_queue [2022-11-26 00:05:11,836 WARN L623 FunctionHandler]: Unknown extern function blk_queue_dma_alignment [2022-11-26 00:05:11,843 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-26 00:05:11,847 WARN L623 FunctionHandler]: Unknown extern function blk_cleanup_queue [2022-11-26 00:05:11,849 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-26 00:05:11,863 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-11-26 00:05:11,880 WARN L623 FunctionHandler]: Unknown extern function scsi_release_buffers [2022-11-26 00:05:11,881 WARN L623 FunctionHandler]: Unknown extern function queue_work [2022-11-26 00:05:11,897 WARN L623 FunctionHandler]: Unknown extern function blk_rq_map_user [2022-11-26 00:05:11,899 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:05:11,900 WARN L623 FunctionHandler]: Unknown extern function scsi_init_io [2022-11-26 00:05:11,901 WARN L623 FunctionHandler]: Unknown extern function scsi_release_buffers [2022-11-26 00:05:11,907 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:05:11,913 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:05:11,922 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-26 00:05:11,926 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-11-26 00:05:11,928 WARN L623 FunctionHandler]: Unknown extern function scsi_host_lookup [2022-11-26 00:05:11,929 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:05:11,930 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:05:11,931 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:05:11,934 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:05:11,938 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-26 00:05:11,940 WARN L623 FunctionHandler]: Unknown extern function scsi_host_put [2022-11-26 00:05:11,941 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:05:11,942 WARN L623 FunctionHandler]: Unknown extern function scsi_host_lookup [2022-11-26 00:05:11,943 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:05:11,945 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:05:11,946 WARN L623 FunctionHandler]: Unknown extern function scsi_host_put [2022-11-26 00:05:11,947 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:05:11,948 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:05:11,951 WARN L623 FunctionHandler]: Unknown extern function scsi_host_lookup [2022-11-26 00:05:11,951 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:05:11,952 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:05:11,954 WARN L623 FunctionHandler]: Unknown extern function scsi_host_put [2022-11-26 00:05:11,958 WARN L623 FunctionHandler]: Unknown extern function kmem_cache_create [2022-11-26 00:05:11,961 WARN L623 FunctionHandler]: Unknown extern function __alloc_workqueue_key [2022-11-26 00:05:11,963 WARN L623 FunctionHandler]: Unknown extern function destroy_workqueue [2022-11-26 00:05:11,963 WARN L623 FunctionHandler]: Unknown extern function kmem_cache_destroy [2022-11-26 00:05:11,968 WARN L623 FunctionHandler]: Unknown extern function destroy_workqueue [2022-11-26 00:05:11,968 WARN L623 FunctionHandler]: Unknown extern function kmem_cache_destroy [2022-11-26 00:05:11,987 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-26 00:05:11,988 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 00:05:11,989 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-26 00:05:11,990 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 00:05:11,990 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-26 00:05:11,991 WARN L623 FunctionHandler]: Unknown extern function mutex_trylock [2022-11-26 00:05:11,992 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 00:05:12,097 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-26 00:05:12,101 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-11-26 00:05:12,109 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:05:12,113 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:05:12,120 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:05:12,129 WARN L623 FunctionHandler]: Unknown extern function strncpy [2022-11-26 00:05:12,130 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:05:12,139 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:05:12,151 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-26 00:05:12,156 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-26 00:05:12,158 WARN L623 FunctionHandler]: Unknown extern function vm_insert_page [2022-11-26 00:05:12,165 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:05:12,182 WARN L623 FunctionHandler]: Unknown extern function free_pages [2022-11-26 00:05:12,189 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-26 00:05:12,190 WARN L623 FunctionHandler]: Unknown extern function get_zeroed_page [2022-11-26 00:05:12,191 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:05:12,199 WARN L623 FunctionHandler]: Unknown extern function noop_llseek [2022-11-26 00:05:12,200 WARN L623 FunctionHandler]: Unknown extern function ldv_tgt_fops_release_1 [2022-11-26 00:05:12,201 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-26 00:05:12,202 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 00:05:12,202 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-26 00:05:12,203 WARN L623 FunctionHandler]: Unknown extern function mutex_trylock [2022-11-26 00:05:12,203 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 00:05:12,204 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-26 00:05:12,204 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 00:05:12,204 WARN L623 FunctionHandler]: Unknown extern function misc_deregister [2022-11-26 00:05:12,205 WARN L623 FunctionHandler]: Unknown extern function misc_register [2022-11-26 00:05:12,209 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_a0a36ebb-0c80-46c5-83ca-b9f8ae889d7d/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i[228448,228461] [2022-11-26 00:05:12,320 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:05:12,341 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:05:12,505 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-11-26 00:05:12,506 WARN L623 FunctionHandler]: Unknown extern function __list_del_entry [2022-11-26 00:05:12,507 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-11-26 00:05:12,510 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-26 00:05:12,511 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-11-26 00:05:12,511 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-11-26 00:05:12,512 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_fmt [2022-11-26 00:05:12,515 WARN L623 FunctionHandler]: Unknown extern function get_device [2022-11-26 00:05:12,516 WARN L623 FunctionHandler]: Unknown extern function kmem_cache_alloc [2022-11-26 00:05:12,516 WARN L623 FunctionHandler]: Unknown extern function blk_get_request [2022-11-26 00:05:12,517 WARN L623 FunctionHandler]: Unknown extern function __scsi_get_command [2022-11-26 00:05:12,518 WARN L623 FunctionHandler]: Unknown extern function blk_put_request [2022-11-26 00:05:12,518 WARN L623 FunctionHandler]: Unknown extern function kmem_cache_free [2022-11-26 00:05:12,519 WARN L623 FunctionHandler]: Unknown extern function put_device [2022-11-26 00:05:12,520 WARN L623 FunctionHandler]: Unknown extern function kmem_cache_free [2022-11-26 00:05:12,520 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-26 00:05:12,521 WARN L623 FunctionHandler]: Unknown extern function __blk_put_request [2022-11-26 00:05:12,521 WARN L623 FunctionHandler]: Unknown extern function __scsi_put_command [2022-11-26 00:05:12,527 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-26 00:05:12,527 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-11-26 00:05:12,528 WARN L623 FunctionHandler]: Unknown extern function blk_rq_unmap_user [2022-11-26 00:05:12,530 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-11-26 00:05:12,531 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-11-26 00:05:12,532 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-26 00:05:12,533 WARN L623 FunctionHandler]: Unknown extern function __scsi_alloc_queue [2022-11-26 00:05:12,534 WARN L623 FunctionHandler]: Unknown extern function blk_queue_dma_alignment [2022-11-26 00:05:12,535 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-26 00:05:12,536 WARN L623 FunctionHandler]: Unknown extern function blk_cleanup_queue [2022-11-26 00:05:12,537 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-26 00:05:12,539 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-11-26 00:05:12,541 WARN L623 FunctionHandler]: Unknown extern function scsi_release_buffers [2022-11-26 00:05:12,542 WARN L623 FunctionHandler]: Unknown extern function queue_work [2022-11-26 00:05:12,546 WARN L623 FunctionHandler]: Unknown extern function blk_rq_map_user [2022-11-26 00:05:12,546 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:05:12,547 WARN L623 FunctionHandler]: Unknown extern function scsi_init_io [2022-11-26 00:05:12,547 WARN L623 FunctionHandler]: Unknown extern function scsi_release_buffers [2022-11-26 00:05:12,549 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:05:12,550 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:05:12,551 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-26 00:05:12,552 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-11-26 00:05:12,553 WARN L623 FunctionHandler]: Unknown extern function scsi_host_lookup [2022-11-26 00:05:12,554 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:05:12,554 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:05:12,555 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:05:12,557 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:05:12,558 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-26 00:05:12,558 WARN L623 FunctionHandler]: Unknown extern function scsi_host_put [2022-11-26 00:05:12,559 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:05:12,560 WARN L623 FunctionHandler]: Unknown extern function scsi_host_lookup [2022-11-26 00:05:12,560 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:05:12,561 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:05:12,565 WARN L623 FunctionHandler]: Unknown extern function scsi_host_put [2022-11-26 00:05:12,569 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:05:12,570 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:05:12,571 WARN L623 FunctionHandler]: Unknown extern function scsi_host_lookup [2022-11-26 00:05:12,572 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:05:12,572 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:05:12,579 WARN L623 FunctionHandler]: Unknown extern function scsi_host_put [2022-11-26 00:05:12,579 WARN L623 FunctionHandler]: Unknown extern function kmem_cache_create [2022-11-26 00:05:12,580 WARN L623 FunctionHandler]: Unknown extern function __alloc_workqueue_key [2022-11-26 00:05:12,581 WARN L623 FunctionHandler]: Unknown extern function destroy_workqueue [2022-11-26 00:05:12,581 WARN L623 FunctionHandler]: Unknown extern function kmem_cache_destroy [2022-11-26 00:05:12,582 WARN L623 FunctionHandler]: Unknown extern function destroy_workqueue [2022-11-26 00:05:12,582 WARN L623 FunctionHandler]: Unknown extern function kmem_cache_destroy [2022-11-26 00:05:12,583 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-26 00:05:12,584 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 00:05:12,584 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-26 00:05:12,585 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 00:05:12,585 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-26 00:05:12,585 WARN L623 FunctionHandler]: Unknown extern function mutex_trylock [2022-11-26 00:05:12,586 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 00:05:12,590 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-26 00:05:12,592 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-11-26 00:05:12,595 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:05:12,597 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:05:12,599 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:05:12,601 WARN L623 FunctionHandler]: Unknown extern function strncpy [2022-11-26 00:05:12,602 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:05:12,604 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:05:12,606 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-26 00:05:12,607 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-26 00:05:12,608 WARN L623 FunctionHandler]: Unknown extern function vm_insert_page [2022-11-26 00:05:12,609 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:05:12,611 WARN L623 FunctionHandler]: Unknown extern function free_pages [2022-11-26 00:05:12,612 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-26 00:05:12,613 WARN L623 FunctionHandler]: Unknown extern function get_zeroed_page [2022-11-26 00:05:12,613 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:05:12,616 WARN L623 FunctionHandler]: Unknown extern function noop_llseek [2022-11-26 00:05:12,617 WARN L623 FunctionHandler]: Unknown extern function ldv_tgt_fops_release_1 [2022-11-26 00:05:12,617 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-26 00:05:12,618 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 00:05:12,618 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-26 00:05:12,619 WARN L623 FunctionHandler]: Unknown extern function mutex_trylock [2022-11-26 00:05:12,619 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 00:05:12,619 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-26 00:05:12,620 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 00:05:12,620 WARN L623 FunctionHandler]: Unknown extern function misc_deregister [2022-11-26 00:05:12,620 WARN L623 FunctionHandler]: Unknown extern function misc_register [2022-11-26 00:05:12,621 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_a0a36ebb-0c80-46c5-83ca-b9f8ae889d7d/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i[228448,228461] [2022-11-26 00:05:12,632 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:05:12,705 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:05:12,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:12 WrapperNode [2022-11-26 00:05:12,706 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:05:12,707 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:05:12,707 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:05:12,707 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:05:12,714 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:12" (1/1) ... [2022-11-26 00:05:12,749 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:12" (1/1) ... [2022-11-26 00:05:12,808 INFO L138 Inliner]: procedures = 188, calls = 583, calls flagged for inlining = 72, calls inlined = 47, statements flattened = 1212 [2022-11-26 00:05:12,809 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:05:12,809 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:05:12,809 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:05:12,810 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:05:12,824 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:12" (1/1) ... [2022-11-26 00:05:12,824 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:12" (1/1) ... [2022-11-26 00:05:12,836 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:12" (1/1) ... [2022-11-26 00:05:12,836 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:12" (1/1) ... [2022-11-26 00:05:12,871 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:12" (1/1) ... [2022-11-26 00:05:12,878 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:12" (1/1) ... [2022-11-26 00:05:12,884 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:12" (1/1) ... [2022-11-26 00:05:12,890 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:12" (1/1) ... [2022-11-26 00:05:12,916 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:05:12,917 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:05:12,917 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:05:12,917 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:05:12,918 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:12" (1/1) ... [2022-11-26 00:05:12,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:05:12,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a36ebb-0c80-46c5-83ca-b9f8ae889d7d/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:05:12,959 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a36ebb-0c80-46c5-83ca-b9f8ae889d7d/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:05:12,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a36ebb-0c80-46c5-83ca-b9f8ae889d7d/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:05:13,009 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-26 00:05:13,009 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-26 00:05:13,009 INFO L130 BoogieDeclarations]: Found specification of procedure uspace_ring_map [2022-11-26 00:05:13,010 INFO L138 BoogieDeclarations]: Found implementation of procedure uspace_ring_map [2022-11-26 00:05:13,011 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_unmap_user_pages [2022-11-26 00:05:13,011 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_unmap_user_pages [2022-11-26 00:05:13,011 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 00:05:13,011 INFO L130 BoogieDeclarations]: Found specification of procedure hash_64 [2022-11-26 00:05:13,012 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_64 [2022-11-26 00:05:13,012 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_release_buffers [2022-11-26 00:05:13,013 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_release_buffers [2022-11-26 00:05:13,013 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-26 00:05:13,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-26 00:05:13,013 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2022-11-26 00:05:13,013 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2022-11-26 00:05:13,013 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_write [2022-11-26 00:05:13,013 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_write [2022-11-26 00:05:13,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:05:13,014 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-26 00:05:13,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-26 00:05:13,014 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-26 00:05:13,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-26 00:05:13,015 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_open [2022-11-26 00:05:13,015 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_open [2022-11-26 00:05:13,015 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_destroy [2022-11-26 00:05:13,015 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_destroy [2022-11-26 00:05:13,015 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-26 00:05:13,015 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_tgt_cmd_to_host [2022-11-26 00:05:13,016 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_tgt_cmd_to_host [2022-11-26 00:05:13,016 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-26 00:05:13,016 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-26 00:05:13,016 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:05:13,016 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_ring_idx_inc [2022-11-26 00:05:13,016 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_ring_idx_inc [2022-11-26 00:05:13,016 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:05:13,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-26 00:05:13,017 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_head_event [2022-11-26 00:05:13,017 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_head_event [2022-11-26 00:05:13,017 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_host_put [2022-11-26 00:05:13,017 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_host_put [2022-11-26 00:05:13,017 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-26 00:05:13,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-26 00:05:13,020 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-26 00:05:13,021 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-26 00:05:13,021 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-26 00:05:13,021 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-26 00:05:13,021 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-26 00:05:13,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:05:13,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-26 00:05:13,022 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_ring_exit [2022-11-26 00:05:13,026 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_ring_exit [2022-11-26 00:05:13,026 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_tgt_cmd_destroy [2022-11-26 00:05:13,026 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_tgt_cmd_destroy [2022-11-26 00:05:13,026 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_ring_init [2022-11-26 00:05:13,026 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_ring_init [2022-11-26 00:05:13,026 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-26 00:05:13,026 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-26 00:05:13,027 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_free [2022-11-26 00:05:13,027 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_free [2022-11-26 00:05:13,027 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_poll [2022-11-26 00:05:13,027 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_poll [2022-11-26 00:05:13,027 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-26 00:05:13,027 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-26 00:05:13,027 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_host_lookup [2022-11-26 00:05:13,028 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_host_lookup [2022-11-26 00:05:13,028 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_mmap [2022-11-26 00:05:13,028 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_mmap [2022-11-26 00:05:13,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:05:13,028 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-26 00:05:13,028 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-26 00:05:13,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:05:13,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:05:13,524 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:05:13,528 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:05:14,561 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:05:14,797 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:05:14,798 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-26 00:05:14,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:05:14 BoogieIcfgContainer [2022-11-26 00:05:14,801 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:05:14,803 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:05:14,803 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:05:14,806 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:05:14,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:05:10" (1/3) ... [2022-11-26 00:05:14,807 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dd1e236 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:05:14, skipping insertion in model container [2022-11-26 00:05:14,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:12" (2/3) ... [2022-11-26 00:05:14,807 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dd1e236 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:05:14, skipping insertion in model container [2022-11-26 00:05:14,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:05:14" (3/3) ... [2022-11-26 00:05:14,809 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i [2022-11-26 00:05:14,827 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:05:14,827 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-11-26 00:05:14,880 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:05:14,886 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;@47f16f3c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:05:14,886 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-11-26 00:05:14,892 INFO L276 IsEmpty]: Start isEmpty. Operand has 288 states, 179 states have (on average 1.4022346368715084) internal successors, (251), 196 states have internal predecessors, (251), 68 states have call successors, (68), 30 states have call predecessors, (68), 30 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2022-11-26 00:05:14,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-26 00:05:14,900 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:05:14,901 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:05:14,901 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-26 00:05:14,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:05:14,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1410467608, now seen corresponding path program 1 times [2022-11-26 00:05:14,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:05:14,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143779141] [2022-11-26 00:05:14,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:05:14,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:05:15,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:05:15,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:05:15,358 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:05:15,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143779141] [2022-11-26 00:05:15,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143779141] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:05:15,359 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:05:15,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:05:15,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244848102] [2022-11-26 00:05:15,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:05:15,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:05:15,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:05:15,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:05:15,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:05:15,399 INFO L87 Difference]: Start difference. First operand has 288 states, 179 states have (on average 1.4022346368715084) internal successors, (251), 196 states have internal predecessors, (251), 68 states have call successors, (68), 30 states have call predecessors, (68), 30 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:05:15,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:05:15,682 INFO L93 Difference]: Finished difference Result 647 states and 872 transitions. [2022-11-26 00:05:15,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:05:15,685 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-26 00:05:15,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:05:15,697 INFO L225 Difference]: With dead ends: 647 [2022-11-26 00:05:15,697 INFO L226 Difference]: Without dead ends: 336 [2022-11-26 00:05:15,702 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:05:15,705 INFO L413 NwaCegarLoop]: 332 mSDtfsCounter, 93 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 627 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:05:15,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 627 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:05:15,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2022-11-26 00:05:15,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 332. [2022-11-26 00:05:15,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 211 states have (on average 1.4123222748815165) internal successors, (298), 227 states have internal predecessors, (298), 75 states have call successors, (75), 36 states have call predecessors, (75), 36 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2022-11-26 00:05:15,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 446 transitions. [2022-11-26 00:05:15,781 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 446 transitions. Word has length 12 [2022-11-26 00:05:15,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:05:15,782 INFO L495 AbstractCegarLoop]: Abstraction has 332 states and 446 transitions. [2022-11-26 00:05:15,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:05:15,782 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 446 transitions. [2022-11-26 00:05:15,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-26 00:05:15,784 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:05:15,784 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:05:15,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:05:15,787 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-26 00:05:15,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:05:15,787 INFO L85 PathProgramCache]: Analyzing trace with hash -2051455032, now seen corresponding path program 1 times [2022-11-26 00:05:15,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:05:15,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987717352] [2022-11-26 00:05:15,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:05:15,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:05:15,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:05:15,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:05:15,940 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:05:15,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987717352] [2022-11-26 00:05:15,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987717352] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:05:15,941 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:05:15,941 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:05:15,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548955709] [2022-11-26 00:05:15,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:05:15,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:05:15,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:05:15,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:05:15,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:05:15,945 INFO L87 Difference]: Start difference. First operand 332 states and 446 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-26 00:05:16,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:05:16,204 INFO L93 Difference]: Finished difference Result 692 states and 925 transitions. [2022-11-26 00:05:16,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:05:16,207 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2022-11-26 00:05:16,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:05:16,209 INFO L225 Difference]: With dead ends: 692 [2022-11-26 00:05:16,210 INFO L226 Difference]: Without dead ends: 361 [2022-11-26 00:05:16,217 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 [2022-11-26 00:05:16,218 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 68 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:05:16,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 566 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:05:16,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2022-11-26 00:05:16,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 348. [2022-11-26 00:05:16,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 226 states have (on average 1.415929203539823) internal successors, (320), 241 states have internal predecessors, (320), 72 states have call successors, (72), 40 states have call predecessors, (72), 40 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2022-11-26 00:05:16,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 463 transitions. [2022-11-26 00:05:16,272 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 463 transitions. Word has length 15 [2022-11-26 00:05:16,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:05:16,272 INFO L495 AbstractCegarLoop]: Abstraction has 348 states and 463 transitions. [2022-11-26 00:05:16,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-26 00:05:16,272 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 463 transitions. [2022-11-26 00:05:16,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-26 00:05:16,274 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:05:16,274 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:05:16,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 00:05:16,278 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting tgt_ring_initErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-26 00:05:16,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:05:16,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1913034524, now seen corresponding path program 1 times [2022-11-26 00:05:16,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:05:16,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697497538] [2022-11-26 00:05:16,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:05:16,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:05:16,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:05:16,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:05:16,442 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:05:16,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697497538] [2022-11-26 00:05:16,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697497538] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:05:16,443 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:05:16,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:05:16,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376008939] [2022-11-26 00:05:16,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:05:16,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:05:16,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:05:16,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:05:16,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:05:16,449 INFO L87 Difference]: Start difference. First operand 348 states and 463 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-26 00:05:16,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:05:16,709 INFO L93 Difference]: Finished difference Result 698 states and 938 transitions. [2022-11-26 00:05:16,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:05:16,709 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 27 [2022-11-26 00:05:16,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:05:16,712 INFO L225 Difference]: With dead ends: 698 [2022-11-26 00:05:16,712 INFO L226 Difference]: Without dead ends: 360 [2022-11-26 00:05:16,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:05:16,715 INFO L413 NwaCegarLoop]: 305 mSDtfsCounter, 3 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 606 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:05:16,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 606 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:05:16,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2022-11-26 00:05:16,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 356. [2022-11-26 00:05:16,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 234 states have (on average 1.4102564102564104) internal successors, (330), 249 states have internal predecessors, (330), 72 states have call successors, (72), 40 states have call predecessors, (72), 40 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2022-11-26 00:05:16,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 473 transitions. [2022-11-26 00:05:16,755 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 473 transitions. Word has length 27 [2022-11-26 00:05:16,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:05:16,756 INFO L495 AbstractCegarLoop]: Abstraction has 356 states and 473 transitions. [2022-11-26 00:05:16,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-26 00:05:16,757 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 473 transitions. [2022-11-26 00:05:16,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-26 00:05:16,760 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:05:16,760 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-26 00:05:16,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-26 00:05:16,760 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-26 00:05:16,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:05:16,762 INFO L85 PathProgramCache]: Analyzing trace with hash 151091841, now seen corresponding path program 1 times [2022-11-26 00:05:16,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:05:16,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122800819] [2022-11-26 00:05:16,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:05:16,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:05:16,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:05:16,938 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:05:16,938 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:05:16,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122800819] [2022-11-26 00:05:16,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122800819] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:05:16,939 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:05:16,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:05:16,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138077253] [2022-11-26 00:05:16,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:05:16,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:05:16,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:05:16,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:05:16,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:05:16,944 INFO L87 Difference]: Start difference. First operand 356 states and 473 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-26 00:05:17,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:05:17,181 INFO L93 Difference]: Finished difference Result 706 states and 936 transitions. [2022-11-26 00:05:17,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:05:17,182 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 29 [2022-11-26 00:05:17,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:05:17,184 INFO L225 Difference]: With dead ends: 706 [2022-11-26 00:05:17,184 INFO L226 Difference]: Without dead ends: 356 [2022-11-26 00:05:17,186 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:05:17,186 INFO L413 NwaCegarLoop]: 307 mSDtfsCounter, 1 mSDsluCounter, 609 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 916 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:05:17,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 916 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:05:17,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2022-11-26 00:05:17,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2022-11-26 00:05:17,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 234 states have (on average 1.4017094017094016) internal successors, (328), 249 states have internal predecessors, (328), 72 states have call successors, (72), 40 states have call predecessors, (72), 40 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2022-11-26 00:05:17,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 471 transitions. [2022-11-26 00:05:17,205 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 471 transitions. Word has length 29 [2022-11-26 00:05:17,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:05:17,205 INFO L495 AbstractCegarLoop]: Abstraction has 356 states and 471 transitions. [2022-11-26 00:05:17,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-26 00:05:17,206 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 471 transitions. [2022-11-26 00:05:17,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:05:17,207 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:05:17,207 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-26 00:05:17,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-26 00:05:17,207 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting tgt_ring_initErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-26 00:05:17,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:05:17,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1362136668, now seen corresponding path program 1 times [2022-11-26 00:05:17,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:05:17,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485316819] [2022-11-26 00:05:17,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:05:17,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:05:17,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:05:17,405 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:05:17,406 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:05:17,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485316819] [2022-11-26 00:05:17,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485316819] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:05:17,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [902321936] [2022-11-26 00:05:17,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:05:17,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:05:17,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a36ebb-0c80-46c5-83ca-b9f8ae889d7d/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:05:17,410 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a36ebb-0c80-46c5-83ca-b9f8ae889d7d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:05:17,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a36ebb-0c80-46c5-83ca-b9f8ae889d7d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-26 00:05:17,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:05:17,772 INFO L263 TraceCheckSpWp]: Trace formula consists of 721 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-26 00:05:17,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:05:17,832 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:05:17,833 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:05:17,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [902321936] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:05:17,833 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-26 00:05:17,833 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-11-26 00:05:17,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950319441] [2022-11-26 00:05:17,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:05:17,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:05:17,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:05:17,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:05:17,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:05:17,835 INFO L87 Difference]: Start difference. First operand 356 states and 471 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-26 00:05:18,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:05:18,049 INFO L93 Difference]: Finished difference Result 360 states and 477 transitions. [2022-11-26 00:05:18,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:05:18,050 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 31 [2022-11-26 00:05:18,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:05:18,052 INFO L225 Difference]: With dead ends: 360 [2022-11-26 00:05:18,052 INFO L226 Difference]: Without dead ends: 359 [2022-11-26 00:05:18,053 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:05:18,053 INFO L413 NwaCegarLoop]: 307 mSDtfsCounter, 7 mSDsluCounter, 601 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 908 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:05:18,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 908 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:05:18,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2022-11-26 00:05:18,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 355. [2022-11-26 00:05:18,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 234 states have (on average 1.393162393162393) internal successors, (326), 248 states have internal predecessors, (326), 72 states have call successors, (72), 40 states have call predecessors, (72), 40 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2022-11-26 00:05:18,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 469 transitions. [2022-11-26 00:05:18,070 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 469 transitions. Word has length 31 [2022-11-26 00:05:18,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:05:18,071 INFO L495 AbstractCegarLoop]: Abstraction has 355 states and 469 transitions. [2022-11-26 00:05:18,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-26 00:05:18,071 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 469 transitions. [2022-11-26 00:05:18,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-26 00:05:18,072 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:05:18,072 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-26 00:05:18,090 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a36ebb-0c80-46c5-83ca-b9f8ae889d7d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-26 00:05:18,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a36ebb-0c80-46c5-83ca-b9f8ae889d7d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:05:18,280 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting tgt_ring_initErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-26 00:05:18,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:05:18,280 INFO L85 PathProgramCache]: Analyzing trace with hash -723435857, now seen corresponding path program 1 times [2022-11-26 00:05:18,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:05:18,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153080778] [2022-11-26 00:05:18,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:05:18,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:05:18,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:05:18,418 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:05:18,418 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:05:18,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153080778] [2022-11-26 00:05:18,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153080778] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:05:18,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1837826722] [2022-11-26 00:05:18,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:05:18,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:05:18,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a36ebb-0c80-46c5-83ca-b9f8ae889d7d/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:05:18,421 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a36ebb-0c80-46c5-83ca-b9f8ae889d7d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:05:18,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a36ebb-0c80-46c5-83ca-b9f8ae889d7d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-26 00:05:18,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:05:18,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 722 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-26 00:05:18,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:05:18,812 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:05:18,812 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:05:18,859 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:05:18,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1837826722] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:05:18,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [490625802] [2022-11-26 00:05:18,892 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2022-11-26 00:05:18,892 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:05:18,896 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:05:18,901 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:05:18,903 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:05:19,544 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 53 [2022-11-26 00:05:19,620 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 11 treesize of output 13 [2022-11-26 00:05:19,739 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 11 treesize of output 13 [2022-11-26 00:05:22,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:05:24,008 INFO L321 Elim1Store]: treesize reduction 500, result has 47.4 percent of original size [2022-11-26 00:05:24,010 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 51 select indices, 51 select index equivalence classes, 1277 disjoint index pairs (out of 1275 index pairs), introduced 51 new quantified variables, introduced 50 case distinctions, treesize of input 262 treesize of output 614 [2022-11-26 00:05:24,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:05:26,790 INFO L321 Elim1Store]: treesize reduction 900, result has 33.4 percent of original size [2022-11-26 00:05:26,791 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 53 select indices, 53 select index equivalence classes, 1328 disjoint index pairs (out of 1378 index pairs), introduced 53 new quantified variables, introduced 100 case distinctions, treesize of input 272 treesize of output 625 [2022-11-26 00:05:28,467 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 [2022-11-26 00:05:28,478 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 [2022-11-26 00:05:29,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:05:29,059 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 53 select indices, 53 select index equivalence classes, 1378 disjoint index pairs (out of 1378 index pairs), introduced 53 new quantified variables, introduced 0 case distinctions, treesize of input 266 treesize of output 160 [2022-11-26 00:05:29,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:05:29,296 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 52 select indices, 52 select index equivalence classes, 1327 disjoint index pairs (out of 1326 index pairs), introduced 52 new quantified variables, introduced 0 case distinctions, treesize of input 261 treesize of output 157 [2022-11-26 00:05:30,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:05:30,654 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 52 select indices, 52 select index equivalence classes, 1327 disjoint index pairs (out of 1326 index pairs), introduced 52 new quantified variables, introduced 0 case distinctions, treesize of input 261 treesize of output 157 [2022-11-26 00:05:30,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:05:30,921 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 53 select indices, 53 select index equivalence classes, 1378 disjoint index pairs (out of 1378 index pairs), introduced 53 new quantified variables, introduced 0 case distinctions, treesize of input 266 treesize of output 160 [2022-11-26 00:05:52,466 INFO L197 IcfgInterpreter]: Interpreting procedure tgt_ring_init with input of size 549 for LOIs [2022-11-26 00:05:53,234 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-26 00:05:53,235 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 2085 treesize of output 2085 [2022-11-26 00:05:53,349 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-26 00:05:53,350 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 1 case distinctions, treesize of input 2080 treesize of output 2082 [2022-11-26 00:05:54,498 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-26 00:05:54,499 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 2085 treesize of output 2085 [2022-11-26 00:05:54,624 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-26 00:05:54,625 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 1 case distinctions, treesize of input 2080 treesize of output 2082 [2022-11-26 00:05:57,827 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-26 00:05:57,828 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 2205 treesize of output 2204 [2022-11-26 00:05:57,950 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-26 00:05:57,951 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 2195 treesize of output 2198 [2022-11-26 00:06:00,870 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-26 00:06:00,871 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 2205 treesize of output 2204 [2022-11-26 00:06:01,027 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-26 00:06:01,028 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 2195 treesize of output 2198 [2022-11-26 00:06:06,981 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 25 treesize of output 1 [2022-11-26 00:06:07,005 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 25 treesize of output 1 [2022-11-26 00:06:07,094 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 [2022-11-26 00:06:07,460 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 25 treesize of output 1 [2022-11-26 00:06:07,473 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 25 treesize of output 1 [2022-11-26 00:06:07,490 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 [2022-11-26 00:06:07,616 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 25 treesize of output 1 [2022-11-26 00:06:07,632 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 [2022-11-26 00:06:07,647 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 25 treesize of output 1 [2022-11-26 00:06:08,308 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-26 00:06:08,309 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 2205 treesize of output 2204 [2022-11-26 00:06:08,418 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-26 00:06:08,420 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 2195 treesize of output 2198 [2022-11-26 00:06:10,835 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-26 00:06:10,836 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 1 case distinctions, treesize of input 2080 treesize of output 2082 [2022-11-26 00:06:10,922 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-26 00:06:10,923 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 2085 treesize of output 2085 [2022-11-26 00:06:11,322 INFO L197 IcfgInterpreter]: Interpreting procedure spinlock_check with input of size 551 for LOIs [2022-11-26 00:06:12,069 INFO L197 IcfgInterpreter]: Interpreting procedure __raw_spin_lock_init with input of size 562 for LOIs [2022-11-26 00:06:12,368 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_malloc with input of size 778 for LOIs [2022-11-26 00:06:13,048 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:06:46,288 WARN L233 SmtUtils]: Spent 8.52s on a formula simplification. DAG size of input: 805 DAG size of output: 703 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:06:58,510 WARN L233 SmtUtils]: Spent 7.97s on a formula simplification. DAG size of input: 831 DAG size of output: 826 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:07:17,119 WARN L233 SmtUtils]: Spent 18.35s on a formula simplification. DAG size of input: 746 DAG size of output: 646 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:07:35,005 WARN L233 SmtUtils]: Spent 17.59s on a formula simplification. DAG size of input: 742 DAG size of output: 620 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:07:45,836 WARN L233 SmtUtils]: Spent 10.52s on a formula simplification. DAG size of input: 752 DAG size of output: 638 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:07:56,770 WARN L233 SmtUtils]: Spent 10.59s on a formula simplification. DAG size of input: 756 DAG size of output: 642 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:08:13,317 WARN L233 SmtUtils]: Spent 5.88s on a formula simplification. DAG size of input: 551 DAG size of output: 489 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:08:19,600 WARN L233 SmtUtils]: Spent 5.90s on a formula simplification. DAG size of input: 559 DAG size of output: 497 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:08:27,516 WARN L233 SmtUtils]: Spent 7.52s on a formula simplification. DAG size of input: 584 DAG size of output: 517 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:08:34,848 WARN L233 SmtUtils]: Spent 6.63s on a formula simplification. DAG size of input: 562 DAG size of output: 503 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:08:42,168 WARN L233 SmtUtils]: Spent 6.89s on a formula simplification. DAG size of input: 574 DAG size of output: 515 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:08:44,780 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '7562#(and (= 51 |~#tgt_miscdev~0.base|) (= ~ldvarg9~0.offset 0) (= ~ldvarg5~0.base 0) (<= |tgt_ring_init_~ring#1.base| 47) (= ~ldv_state_variable_0~0 1) (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldvarg8~0.offset 0) (= ~tgt_fops_group2~0.base 0) (= ~ldvarg9~0.base 0) (= ~ldvarg7~0.offset 0) (<= 47 |tgt_ring_init_~ring#1.base|) (= ~ldv_retval_1~0 0) (= ~ldvarg3~0.base 0) (<= |tgt_ring_init_#in~ring#1.offset| 0) (= ~ldv_mutex_lock~0 1) (= |~#rx_ring~0.base| 48) (<= (mod |tgt_ring_init_~i~4#1| 4294967296) 15) (= ~scsi_tgt_cmd_cache~0.offset 0) (= ~ldvarg1~0 0) (= ~ldvarg5~0.offset 0) (<= |tgt_ring_init_#in~ring#1.base| 47) (= ~tgt_fops_group1~0.offset 0) (= ~ldvarg2~0.offset 0) (= ~ldv_state_variable_1~0 0) (= 49 |~#tgt_poll_wait~0.base|) (= |~#tgt_miscdev~0.offset| 0) (= |tgt_ring_init_~#__key~3#1.offset| 0) (= |~#tx_ring~0.offset| 0) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1) (= |~#rx_ring~0.offset| 0) (= ~ldvarg8~0.base 0) (<= 0 |tgt_ring_init_#in~ring#1.offset|) (<= |tgt_ring_init_~ring#1.offset| 0) (< 2147483646 |tgt_ring_init_~i~4#1|) (= ~tgt_fops_group1~0.base 0) (= ~ref_cnt~0 0) (= ~ldvarg4~0.offset 0) (= |~#tgt_poll_wait~0.offset| 0) (not (= (mod (select (select |#memory_int| |tgt_ring_init_~ring#1.base|) (+ (* 8 |tgt_ring_init_~i~4#1|) |tgt_ring_init_~ring#1.offset| 4)) 18446744073709551616) 0)) (= |~#tgt_fops~0.offset| 0) (<= 0 |tgt_ring_init_~ring#1.offset|) (= ~ldvarg0~0 0) (= |#NULL.offset| 0) (= ~ldvarg4~0.base 0) (= ~ldv_retval_0~0 0) (<= 47 |tgt_ring_init_#in~ring#1.base|) (= |~#tgt_fops~0.base| 50) (= ~ldvarg6~0 0) (= ~tgt_fops_group2~0.offset 0) (= ~ldvarg2~0.base 0) (= |tgt_ring_init_get_zeroed_page_#in~arg0#1| 208) (<= 0 |#StackHeapBarrier|) (= |tgt_ring_init_get_zeroed_page_#in~arg0#1| |tgt_ring_init_get_zeroed_page_~arg0#1|) (= ~ldvarg3~0.offset 0) (= |tgt_ring_init_get_zeroed_page_#res#1| (select (select |#memory_int| |tgt_ring_init_~ring#1.base|) (+ (* 8 |tgt_ring_init_~i~4#1|) |tgt_ring_init_~ring#1.offset| 4))) (<= 0 |tgt_ring_init_~#__key~3#1.base|) (= ~ldvarg7~0.base 0) (= |#NULL.base| 0) (= |~#tx_ring~0.base| 47))' at error location [2022-11-26 00:08:44,780 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-26 00:08:44,780 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-26 00:08:44,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-11-26 00:08:44,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946944098] [2022-11-26 00:08:44,780 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-26 00:08:44,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-26 00:08:44,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:08:44,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-26 00:08:44,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=892, Unknown=0, NotChecked=0, Total=992 [2022-11-26 00:08:44,782 INFO L87 Difference]: Start difference. First operand 355 states and 469 transitions. Second operand has 7 states, 6 states have (on average 6.5) internal successors, (39), 7 states have internal predecessors, (39), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-26 00:08:45,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:08:45,054 INFO L93 Difference]: Finished difference Result 381 states and 511 transitions. [2022-11-26 00:08:45,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-26 00:08:45,055 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.5) internal successors, (39), 7 states have internal predecessors, (39), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 32 [2022-11-26 00:08:45,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:08:45,061 INFO L225 Difference]: With dead ends: 381 [2022-11-26 00:08:45,061 INFO L226 Difference]: Without dead ends: 380 [2022-11-26 00:08:45,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 65 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 349 ImplicationChecksByTransitivity, 151.7s TimeCoverageRelationStatistics Valid=100, Invalid=892, Unknown=0, NotChecked=0, Total=992 [2022-11-26 00:08:45,065 INFO L413 NwaCegarLoop]: 302 mSDtfsCounter, 14 mSDsluCounter, 901 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 1203 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:08:45,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 1203 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:08:45,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2022-11-26 00:08:45,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 348. [2022-11-26 00:08:45,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 228 states have (on average 1.3859649122807018) internal successors, (316), 241 states have internal predecessors, (316), 72 states have call successors, (72), 40 states have call predecessors, (72), 40 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2022-11-26 00:08:45,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 459 transitions. [2022-11-26 00:08:45,114 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 459 transitions. Word has length 32 [2022-11-26 00:08:45,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:08:45,115 INFO L495 AbstractCegarLoop]: Abstraction has 348 states and 459 transitions. [2022-11-26 00:08:45,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.5) internal successors, (39), 7 states have internal predecessors, (39), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-26 00:08:45,115 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 459 transitions. [2022-11-26 00:08:45,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-26 00:08:45,116 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:08:45,116 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-26 00:08:45,131 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a36ebb-0c80-46c5-83ca-b9f8ae889d7d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-26 00:08:45,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a36ebb-0c80-46c5-83ca-b9f8ae889d7d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-26 00:08:45,324 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-26 00:08:45,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:08:45,324 INFO L85 PathProgramCache]: Analyzing trace with hash -306400277, now seen corresponding path program 1 times [2022-11-26 00:08:45,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:08:45,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679949731] [2022-11-26 00:08:45,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:08:45,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:08:45,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:08:45,472 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-26 00:08:45,472 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:08:45,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679949731] [2022-11-26 00:08:45,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679949731] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:08:45,472 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:08:45,473 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:08:45,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669502727] [2022-11-26 00:08:45,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:08:45,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:08:45,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:08:45,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:08:45,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:08:45,475 INFO L87 Difference]: Start difference. First operand 348 states and 459 transitions. Second operand has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-26 00:08:45,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:08:45,638 INFO L93 Difference]: Finished difference Result 695 states and 926 transitions. [2022-11-26 00:08:45,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:08:45,639 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 34 [2022-11-26 00:08:45,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:08:45,641 INFO L225 Difference]: With dead ends: 695 [2022-11-26 00:08:45,641 INFO L226 Difference]: Without dead ends: 357 [2022-11-26 00:08:45,642 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:08:45,643 INFO L413 NwaCegarLoop]: 302 mSDtfsCounter, 1 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:08:45,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 601 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:08:45,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2022-11-26 00:08:45,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 357. [2022-11-26 00:08:45,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 237 states have (on average 1.371308016877637) internal successors, (325), 250 states have internal predecessors, (325), 72 states have call successors, (72), 40 states have call predecessors, (72), 40 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2022-11-26 00:08:45,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 468 transitions. [2022-11-26 00:08:45,661 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 468 transitions. Word has length 34 [2022-11-26 00:08:45,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:08:45,662 INFO L495 AbstractCegarLoop]: Abstraction has 357 states and 468 transitions. [2022-11-26 00:08:45,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-26 00:08:45,662 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 468 transitions. [2022-11-26 00:08:45,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-26 00:08:45,669 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:08:45,669 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:08:45,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-26 00:08:45,670 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-26 00:08:45,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:08:45,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1165071491, now seen corresponding path program 1 times [2022-11-26 00:08:45,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:08:45,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253341943] [2022-11-26 00:08:45,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:08:45,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:08:45,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:08:45,835 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-26 00:08:45,835 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:08:45,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253341943] [2022-11-26 00:08:45,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253341943] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:08:45,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [29439669] [2022-11-26 00:08:45,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:08:45,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:08:45,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a36ebb-0c80-46c5-83ca-b9f8ae889d7d/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:08:45,837 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a36ebb-0c80-46c5-83ca-b9f8ae889d7d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:08:45,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a36ebb-0c80-46c5-83ca-b9f8ae889d7d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-26 00:08:46,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:08:46,137 INFO L263 TraceCheckSpWp]: Trace formula consists of 690 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-26 00:08:46,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:08:46,165 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-26 00:08:46,165 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:08:46,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [29439669] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:08:46,165 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-26 00:08:46,166 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [3] total 7 [2022-11-26 00:08:46,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911067814] [2022-11-26 00:08:46,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:08:46,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:08:46,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:08:46,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:08:46,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-26 00:08:46,168 INFO L87 Difference]: Start difference. First operand 357 states and 468 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-26 00:08:46,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:08:46,425 INFO L93 Difference]: Finished difference Result 712 states and 932 transitions. [2022-11-26 00:08:46,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:08:46,425 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 37 [2022-11-26 00:08:46,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:08:46,428 INFO L225 Difference]: With dead ends: 712 [2022-11-26 00:08:46,428 INFO L226 Difference]: Without dead ends: 357 [2022-11-26 00:08:46,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-26 00:08:46,430 INFO L413 NwaCegarLoop]: 304 mSDtfsCounter, 3 mSDsluCounter, 903 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1207 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:08:46,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1207 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:08:46,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2022-11-26 00:08:46,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 357. [2022-11-26 00:08:46,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 237 states have (on average 1.3628691983122363) internal successors, (323), 248 states have internal predecessors, (323), 72 states have call successors, (72), 40 states have call predecessors, (72), 40 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2022-11-26 00:08:46,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 466 transitions. [2022-11-26 00:08:46,445 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 466 transitions. Word has length 37 [2022-11-26 00:08:46,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:08:46,445 INFO L495 AbstractCegarLoop]: Abstraction has 357 states and 466 transitions. [2022-11-26 00:08:46,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-26 00:08:46,445 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 466 transitions. [2022-11-26 00:08:46,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-26 00:08:46,447 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:08:46,447 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 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] [2022-11-26 00:08:46,458 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a36ebb-0c80-46c5-83ca-b9f8ae889d7d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-26 00:08:46,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a36ebb-0c80-46c5-83ca-b9f8ae889d7d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:08:46,654 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-26 00:08:46,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:08:46,654 INFO L85 PathProgramCache]: Analyzing trace with hash 1588332362, now seen corresponding path program 1 times [2022-11-26 00:08:46,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:08:46,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292877816] [2022-11-26 00:08:46,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:08:46,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:08:46,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:08:46,896 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-26 00:08:46,897 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:08:46,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292877816] [2022-11-26 00:08:46,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292877816] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:08:46,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1373370101] [2022-11-26 00:08:46,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:08:46,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:08:46,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a36ebb-0c80-46c5-83ca-b9f8ae889d7d/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:08:46,899 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a36ebb-0c80-46c5-83ca-b9f8ae889d7d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:08:46,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a36ebb-0c80-46c5-83ca-b9f8ae889d7d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-26 00:08:47,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:08:47,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 858 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-26 00:08:47,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:08:47,281 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-26 00:08:47,281 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:08:47,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1373370101] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:08:47,282 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-26 00:08:47,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [3] total 7 [2022-11-26 00:08:47,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590980744] [2022-11-26 00:08:47,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:08:47,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:08:47,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:08:47,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:08:47,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-26 00:08:47,284 INFO L87 Difference]: Start difference. First operand 357 states and 466 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-26 00:08:47,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:08:47,578 INFO L93 Difference]: Finished difference Result 794 states and 1059 transitions. [2022-11-26 00:08:47,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:08:47,578 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 53 [2022-11-26 00:08:47,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:08:47,583 INFO L225 Difference]: With dead ends: 794 [2022-11-26 00:08:47,583 INFO L226 Difference]: Without dead ends: 447 [2022-11-26 00:08:47,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-26 00:08:47,589 INFO L413 NwaCegarLoop]: 377 mSDtfsCounter, 73 mSDsluCounter, 1051 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 1428 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:08:47,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 1428 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-26 00:08:47,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2022-11-26 00:08:47,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 365. [2022-11-26 00:08:47,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 243 states have (on average 1.353909465020576) internal successors, (329), 254 states have internal predecessors, (329), 72 states have call successors, (72), 40 states have call predecessors, (72), 42 states have return successors, (75), 73 states have call predecessors, (75), 71 states have call successors, (75) [2022-11-26 00:08:47,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 476 transitions. [2022-11-26 00:08:47,617 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 476 transitions. Word has length 53 [2022-11-26 00:08:47,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:08:47,617 INFO L495 AbstractCegarLoop]: Abstraction has 365 states and 476 transitions. [2022-11-26 00:08:47,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-26 00:08:47,618 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 476 transitions. [2022-11-26 00:08:47,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-26 00:08:47,619 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:08:47,619 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:08:47,632 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a36ebb-0c80-46c5-83ca-b9f8ae889d7d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-26 00:08:47,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a36ebb-0c80-46c5-83ca-b9f8ae889d7d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-26 00:08:47,828 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-26 00:08:47,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:08:47,828 INFO L85 PathProgramCache]: Analyzing trace with hash 1656675213, now seen corresponding path program 1 times [2022-11-26 00:08:47,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:08:47,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788613836] [2022-11-26 00:08:47,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:08:47,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:08:47,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:08:48,047 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-26 00:08:48,048 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:08:48,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788613836] [2022-11-26 00:08:48,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788613836] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:08:48,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [318286939] [2022-11-26 00:08:48,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:08:48,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:08:48,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a36ebb-0c80-46c5-83ca-b9f8ae889d7d/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:08:48,050 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a36ebb-0c80-46c5-83ca-b9f8ae889d7d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:08:48,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a36ebb-0c80-46c5-83ca-b9f8ae889d7d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-26 00:08:48,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:08:48,403 INFO L263 TraceCheckSpWp]: Trace formula consists of 796 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-26 00:08:48,405 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:08:48,463 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-26 00:08:48,463 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:08:48,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [318286939] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:08:48,464 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-26 00:08:48,464 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3] total 9 [2022-11-26 00:08:48,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903735998] [2022-11-26 00:08:48,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:08:48,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-26 00:08:48,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:08:48,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-26 00:08:48,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-26 00:08:48,467 INFO L87 Difference]: Start difference. First operand 365 states and 476 transitions. Second operand has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 6 states have internal predecessors, (39), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-26 00:08:48,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:08:48,890 INFO L93 Difference]: Finished difference Result 802 states and 1067 transitions. [2022-11-26 00:08:48,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-26 00:08:48,891 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 6 states have internal predecessors, (39), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 51 [2022-11-26 00:08:48,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:08:48,894 INFO L225 Difference]: With dead ends: 802 [2022-11-26 00:08:48,894 INFO L226 Difference]: Without dead ends: 447 [2022-11-26 00:08:48,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-11-26 00:08:48,897 INFO L413 NwaCegarLoop]: 383 mSDtfsCounter, 210 mSDsluCounter, 1684 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 2067 SdHoareTripleChecker+Invalid, 455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:08:48,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 2067 Invalid, 455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 420 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-26 00:08:48,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2022-11-26 00:08:48,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 369. [2022-11-26 00:08:48,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 247 states have (on average 1.3481781376518218) internal successors, (333), 258 states have internal predecessors, (333), 72 states have call successors, (72), 40 states have call predecessors, (72), 42 states have return successors, (75), 73 states have call predecessors, (75), 71 states have call successors, (75) [2022-11-26 00:08:48,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 480 transitions. [2022-11-26 00:08:48,916 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 480 transitions. Word has length 51 [2022-11-26 00:08:48,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:08:48,917 INFO L495 AbstractCegarLoop]: Abstraction has 369 states and 480 transitions. [2022-11-26 00:08:48,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 6 states have internal predecessors, (39), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-26 00:08:48,917 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 480 transitions. [2022-11-26 00:08:48,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-26 00:08:48,918 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:08:48,918 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 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] [2022-11-26 00:08:48,942 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a36ebb-0c80-46c5-83ca-b9f8ae889d7d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-26 00:08:49,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a36ebb-0c80-46c5-83ca-b9f8ae889d7d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-26 00:08:49,126 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-26 00:08:49,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:08:49,126 INFO L85 PathProgramCache]: Analyzing trace with hash -1017041864, now seen corresponding path program 1 times [2022-11-26 00:08:49,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:08:49,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373352590] [2022-11-26 00:08:49,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:08:49,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:08:49,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:08:49,265 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-26 00:08:49,266 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:08:49,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373352590] [2022-11-26 00:08:49,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373352590] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:08:49,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [391382635] [2022-11-26 00:08:49,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:08:49,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:08:49,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a36ebb-0c80-46c5-83ca-b9f8ae889d7d/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:08:49,271 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a36ebb-0c80-46c5-83ca-b9f8ae889d7d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:08:49,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a36ebb-0c80-46c5-83ca-b9f8ae889d7d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-26 00:08:49,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:08:49,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 862 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-26 00:08:49,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:08:49,647 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-26 00:08:49,647 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:08:49,647 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [391382635] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:08:49,647 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-26 00:08:49,648 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-11-26 00:08:49,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430873296] [2022-11-26 00:08:49,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:08:49,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:08:49,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:08:49,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:08:49,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:08:49,652 INFO L87 Difference]: Start difference. First operand 369 states and 480 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-26 00:08:49,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:08:49,843 INFO L93 Difference]: Finished difference Result 369 states and 480 transitions. [2022-11-26 00:08:49,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:08:49,844 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 56 [2022-11-26 00:08:49,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:08:49,846 INFO L225 Difference]: With dead ends: 369 [2022-11-26 00:08:49,846 INFO L226 Difference]: Without dead ends: 368 [2022-11-26 00:08:49,847 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:08:49,847 INFO L413 NwaCegarLoop]: 299 mSDtfsCounter, 3 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 895 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:08:49,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 895 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:08:49,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2022-11-26 00:08:49,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 368. [2022-11-26 00:08:49,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 247 states have (on average 1.3360323886639676) internal successors, (330), 257 states have internal predecessors, (330), 72 states have call successors, (72), 40 states have call predecessors, (72), 42 states have return successors, (75), 73 states have call predecessors, (75), 71 states have call successors, (75) [2022-11-26 00:08:49,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 477 transitions. [2022-11-26 00:08:49,864 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 477 transitions. Word has length 56 [2022-11-26 00:08:49,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:08:49,865 INFO L495 AbstractCegarLoop]: Abstraction has 368 states and 477 transitions. [2022-11-26 00:08:49,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-26 00:08:49,865 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 477 transitions. [2022-11-26 00:08:49,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-26 00:08:49,867 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:08:49,867 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 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] [2022-11-26 00:08:49,887 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a36ebb-0c80-46c5-83ca-b9f8ae889d7d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-26 00:08:50,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a36ebb-0c80-46c5-83ca-b9f8ae889d7d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:08:50,087 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting tgt_ring_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-26 00:08:50,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:08:50,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1463526664, now seen corresponding path program 1 times [2022-11-26 00:08:50,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:08:50,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895105667] [2022-11-26 00:08:50,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:08:50,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:08:50,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:08:50,249 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-26 00:08:50,251 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:08:50,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895105667] [2022-11-26 00:08:50,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895105667] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:08:50,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [772937171] [2022-11-26 00:08:50,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:08:50,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:08:50,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a36ebb-0c80-46c5-83ca-b9f8ae889d7d/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:08:50,254 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a36ebb-0c80-46c5-83ca-b9f8ae889d7d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:08:50,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a36ebb-0c80-46c5-83ca-b9f8ae889d7d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-26 00:08:50,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:08:50,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 863 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-26 00:08:50,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:08:50,638 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-26 00:08:50,639 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:08:50,701 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-26 00:08:50,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [772937171] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:08:50,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1504926271] [2022-11-26 00:08:50,705 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2022-11-26 00:08:50,705 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:08:50,706 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:08:50,706 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:08:50,706 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:08:51,109 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 11 treesize of output 13 [2022-11-26 00:08:51,217 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 53 [2022-11-26 00:08:51,294 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 11 treesize of output 13 [2022-11-26 00:08:52,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:08:54,351 INFO L321 Elim1Store]: treesize reduction 500, result has 47.4 percent of original size [2022-11-26 00:08:54,352 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 51 select indices, 51 select index equivalence classes, 1277 disjoint index pairs (out of 1275 index pairs), introduced 51 new quantified variables, introduced 50 case distinctions, treesize of input 262 treesize of output 614 [2022-11-26 00:08:54,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:08:56,951 INFO L321 Elim1Store]: treesize reduction 900, result has 33.4 percent of original size [2022-11-26 00:08:56,952 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 53 select indices, 53 select index equivalence classes, 1328 disjoint index pairs (out of 1378 index pairs), introduced 53 new quantified variables, introduced 100 case distinctions, treesize of input 272 treesize of output 625 [2022-11-26 00:08:58,089 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 [2022-11-26 00:08:58,110 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 [2022-11-26 00:08:58,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:08:58,773 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 53 select indices, 53 select index equivalence classes, 1378 disjoint index pairs (out of 1378 index pairs), introduced 53 new quantified variables, introduced 0 case distinctions, treesize of input 266 treesize of output 160 [2022-11-26 00:08:58,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:08:58,968 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 52 select indices, 52 select index equivalence classes, 1327 disjoint index pairs (out of 1326 index pairs), introduced 52 new quantified variables, introduced 0 case distinctions, treesize of input 261 treesize of output 157 [2022-11-26 00:09:00,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:00,284 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 53 select indices, 53 select index equivalence classes, 1378 disjoint index pairs (out of 1378 index pairs), introduced 53 new quantified variables, introduced 0 case distinctions, treesize of input 266 treesize of output 160 [2022-11-26 00:09:00,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:00,484 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 52 select indices, 52 select index equivalence classes, 1327 disjoint index pairs (out of 1326 index pairs), introduced 52 new quantified variables, introduced 0 case distinctions, treesize of input 261 treesize of output 157 [2022-11-26 00:09:19,910 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 [2022-11-26 00:09:19,914 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 [2022-11-26 00:09:19,960 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 25 treesize of output 1 [2022-11-26 00:09:19,966 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 25 treesize of output 1 [2022-11-26 00:09:19,972 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 [2022-11-26 00:09:19,993 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 25 treesize of output 1 [2022-11-26 00:09:20,004 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 118 treesize of output 108 [2022-11-26 00:09:20,021 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 25 treesize of output 1 [2022-11-26 00:09:20,060 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 25 treesize of output 1 [2022-11-26 00:09:20,064 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 25 treesize of output 1 [2022-11-26 00:09:20,069 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 [2022-11-26 00:09:20,081 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 [2022-11-26 00:09:20,089 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 25 treesize of output 1 [2022-11-26 00:09:20,096 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 25 treesize of output 1 [2022-11-26 00:09:20,100 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 [2022-11-26 00:09:20,108 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 [2022-11-26 00:09:21,012 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 [2022-11-26 00:09:21,069 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 380 treesize of output 294 [2022-11-26 00:09:21,114 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 22 [2022-11-26 00:09:21,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:21,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:21,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:21,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:21,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:21,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:21,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:21,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:21,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:21,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:21,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:21,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:21,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:21,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:21,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:21,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:21,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:21,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:21,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:21,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:21,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:21,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:21,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:21,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:21,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:21,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:21,205 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 27 select indices, 27 select index equivalence classes, 351 disjoint index pairs (out of 351 index pairs), introduced 27 new quantified variables, introduced 0 case distinctions, treesize of input 188 treesize of output 82 [2022-11-26 00:09:21,261 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 22 [2022-11-26 00:09:21,334 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 386 treesize of output 300 [2022-11-26 00:09:21,376 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 22 [2022-11-26 00:09:21,422 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 28 [2022-11-26 00:09:21,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:21,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:21,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:21,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:21,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:21,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:21,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:21,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:21,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:21,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:21,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:21,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:21,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:21,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:21,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:21,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:21,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:21,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:21,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:21,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:21,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:21,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:21,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:21,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:21,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:21,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:21,506 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 27 select indices, 27 select index equivalence classes, 351 disjoint index pairs (out of 351 index pairs), introduced 27 new quantified variables, introduced 0 case distinctions, treesize of input 188 treesize of output 82 [2022-11-26 00:09:21,572 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 84 [2022-11-26 00:09:21,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:21,615 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-26 00:09:21,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:21,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:21,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:21,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:21,656 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 16 [2022-11-26 00:09:21,710 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 [2022-11-26 00:09:21,827 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:09:36,826 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 380 treesize of output 294 [2022-11-26 00:09:36,867 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 22 [2022-11-26 00:09:36,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:36,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:36,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:36,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:36,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:36,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:36,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:36,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:36,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:36,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:36,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:36,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:36,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:36,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:36,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:36,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:36,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:36,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:36,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:36,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:36,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:36,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:36,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:36,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:36,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:36,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:36,943 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 27 select indices, 27 select index equivalence classes, 351 disjoint index pairs (out of 351 index pairs), introduced 27 new quantified variables, introduced 0 case distinctions, treesize of input 188 treesize of output 82 [2022-11-26 00:09:36,998 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 22 [2022-11-26 00:09:37,045 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 84 [2022-11-26 00:09:37,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:37,080 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-26 00:09:37,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:37,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:37,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:37,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:37,129 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 16 [2022-11-26 00:09:37,187 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 [2022-11-26 00:09:37,237 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 386 treesize of output 300 [2022-11-26 00:09:37,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:37,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:37,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:37,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:37,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:37,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:37,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:37,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:37,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:37,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:37,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:37,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:37,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:37,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:37,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:37,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:37,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:37,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:37,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:37,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:37,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:37,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:37,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:37,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:37,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:37,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:09:37,340 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 27 select indices, 27 select index equivalence classes, 351 disjoint index pairs (out of 351 index pairs), introduced 27 new quantified variables, introduced 0 case distinctions, treesize of input 188 treesize of output 82 [2022-11-26 00:09:37,395 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 22 [2022-11-26 00:09:37,435 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 28 [2022-11-26 00:09:37,483 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 [2022-11-26 00:09:37,593 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:09:54,126 INFO L197 IcfgInterpreter]: Interpreting procedure tgt_ring_init with input of size 187 for LOIs [2022-11-26 00:09:54,200 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 [2022-11-26 00:09:54,276 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 [2022-11-26 00:09:55,900 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 25 treesize of output 1 [2022-11-26 00:09:55,979 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 25 treesize of output 1 [2022-11-26 00:09:56,011 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 [2022-11-26 00:09:56,315 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 25 treesize of output 1 [2022-11-26 00:09:56,336 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 [2022-11-26 00:09:56,408 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 25 treesize of output 1 [2022-11-26 00:09:56,651 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 [2022-11-26 00:09:56,830 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 [2022-11-26 00:09:56,850 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 25 treesize of output 1 [2022-11-26 00:09:56,922 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 25 treesize of output 1 [2022-11-26 00:09:57,054 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 [2022-11-26 00:09:57,723 INFO L197 IcfgInterpreter]: Interpreting procedure spinlock_check with input of size 201 for LOIs [2022-11-26 00:09:57,865 INFO L197 IcfgInterpreter]: Interpreting procedure __raw_spin_lock_init with input of size 209 for LOIs [2022-11-26 00:09:57,916 INFO L197 IcfgInterpreter]: Interpreting procedure tgt_ring_exit with input of size 99 for LOIs [2022-11-26 00:09:58,580 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_malloc with input of size 778 for LOIs [2022-11-26 00:09:59,241 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:10:32,290 WARN L233 SmtUtils]: Spent 8.53s on a formula simplification. DAG size of input: 805 DAG size of output: 703 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:10:44,276 WARN L233 SmtUtils]: Spent 7.87s on a formula simplification. DAG size of input: 831 DAG size of output: 826 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:11:03,238 WARN L233 SmtUtils]: Spent 18.71s on a formula simplification. DAG size of input: 747 DAG size of output: 672 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:11:21,118 WARN L233 SmtUtils]: Spent 17.60s on a formula simplification. DAG size of input: 743 DAG size of output: 624 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:11:32,098 WARN L233 SmtUtils]: Spent 10.68s on a formula simplification. DAG size of input: 753 DAG size of output: 649 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:11:43,168 WARN L233 SmtUtils]: Spent 10.74s on a formula simplification. DAG size of input: 757 DAG size of output: 653 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:12:10,577 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '17014#(and (= 51 |~#tgt_miscdev~0.base|) (= ~ldvarg9~0.offset 0) (= ~ldvarg5~0.base 0) (= ~ldv_state_variable_0~0 1) (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldvarg8~0.offset 0) (= ~tgt_fops_group2~0.base 0) (= ~ldvarg9~0.base 0) (= ~ldvarg7~0.offset 0) (<= |tgt_ring_exit_free_pages_~arg1#1| 0) (= ~ldv_retval_1~0 0) (<= |tgt_ring_exit_~ring#1.base| 47) (= ~ldvarg3~0.base 0) (<= 0 |tgt_ring_exit_free_pages_~arg1#1|) (<= 0 |tgt_ring_exit_#in~ring#1.offset|) (= ~ldv_mutex_lock~0 1) (= |~#rx_ring~0.base| 48) (= ~ldvarg1~0 0) (<= |tgt_ring_exit_#in~ring#1.base| 47) (= ~ldvarg5~0.offset 0) (= ~tgt_fops_group1~0.offset 0) (= ~ldvarg2~0.offset 0) (= |tgt_ring_exit_free_pages_#in~arg1#1| 0) (<= |tgt_ring_exit_~ring#1.offset| 0) (= ~ldv_state_variable_1~0 0) (= 49 |~#tgt_poll_wait~0.base|) (= |~#tgt_miscdev~0.offset| 0) (<= ~scsi_tgt_cmd_cache~0.offset 0) (= |~#tx_ring~0.offset| 0) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1) (= |~#rx_ring~0.offset| 0) (= ~ldvarg8~0.base 0) (<= 0 ~scsi_tgt_cmd_cache~0.offset) (= ~tgt_fops_group1~0.base 0) (= ~ref_cnt~0 0) (= ~ldvarg4~0.offset 0) (= |~#tgt_poll_wait~0.offset| 0) (< 2147483646 |tgt_ring_exit_~i~3#1|) (= |~#tgt_fops~0.offset| 0) (= ~ldvarg0~0 0) (= |#NULL.offset| 0) (= ~ldvarg4~0.base 0) (= ~ldv_retval_0~0 0) (<= |tgt_ring_exit_#in~ring#1.offset| 0) (<= 0 |tgt_ring_exit_~ring#1.offset|) (= |~#tgt_fops~0.base| 50) (= ~ldvarg6~0 0) (<= 47 |tgt_ring_exit_#in~ring#1.base|) (= ~tgt_fops_group2~0.offset 0) (= ~ldvarg2~0.base 0) (<= 0 |#StackHeapBarrier|) (= ~ldvarg3~0.offset 0) (<= 47 |tgt_ring_exit_~ring#1.base|) (= ~ldvarg7~0.base 0) (= |#NULL.base| 0) (= |~#tx_ring~0.base| 47))' at error location [2022-11-26 00:12:10,577 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-26 00:12:10,577 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-26 00:12:10,577 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-11-26 00:12:10,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180448074] [2022-11-26 00:12:10,578 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-26 00:12:10,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-26 00:12:10,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:12:10,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-26 00:12:10,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=1585, Unknown=0, NotChecked=0, Total=1722 [2022-11-26 00:12:10,580 INFO L87 Difference]: Start difference. First operand 368 states and 477 transitions. Second operand has 7 states, 6 states have (on average 7.666666666666667) internal successors, (46), 7 states have internal predecessors, (46), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-26 00:12:10,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:12:10,800 INFO L93 Difference]: Finished difference Result 386 states and 506 transitions. [2022-11-26 00:12:10,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-26 00:12:10,801 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.666666666666667) internal successors, (46), 7 states have internal predecessors, (46), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 57 [2022-11-26 00:12:10,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:12:10,803 INFO L225 Difference]: With dead ends: 386 [2022-11-26 00:12:10,804 INFO L226 Difference]: Without dead ends: 365 [2022-11-26 00:12:10,805 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 127 SyntacticMatches, 5 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 664 ImplicationChecksByTransitivity, 131.3s TimeCoverageRelationStatistics Valid=137, Invalid=1585, Unknown=0, NotChecked=0, Total=1722 [2022-11-26 00:12:10,805 INFO L413 NwaCegarLoop]: 299 mSDtfsCounter, 3 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 895 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:12:10,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 895 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:12:10,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2022-11-26 00:12:10,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 349. [2022-11-26 00:12:10,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 234 states have (on average 1.329059829059829) internal successors, (311), 242 states have internal predecessors, (311), 69 states have call successors, (69), 38 states have call predecessors, (69), 40 states have return successors, (73), 71 states have call predecessors, (73), 69 states have call successors, (73) [2022-11-26 00:12:10,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 453 transitions. [2022-11-26 00:12:10,823 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 453 transitions. Word has length 57 [2022-11-26 00:12:10,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:12:10,824 INFO L495 AbstractCegarLoop]: Abstraction has 349 states and 453 transitions. [2022-11-26 00:12:10,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.666666666666667) internal successors, (46), 7 states have internal predecessors, (46), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-26 00:12:10,824 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 453 transitions. [2022-11-26 00:12:10,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-11-26 00:12:10,825 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:12:10,826 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 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] [2022-11-26 00:12:10,838 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a36ebb-0c80-46c5-83ca-b9f8ae889d7d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-26 00:12:11,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a36ebb-0c80-46c5-83ca-b9f8ae889d7d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:12:11,039 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-26 00:12:11,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:12:11,039 INFO L85 PathProgramCache]: Analyzing trace with hash -405540158, now seen corresponding path program 1 times [2022-11-26 00:12:11,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:12:11,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825260122] [2022-11-26 00:12:11,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:12:11,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:12:11,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:12:11,170 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-26 00:12:11,170 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:12:11,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825260122] [2022-11-26 00:12:11,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825260122] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:12:11,171 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:12:11,171 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:12:11,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468644812] [2022-11-26 00:12:11,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:12:11,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:12:11,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:12:11,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:12:11,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:12:11,173 INFO L87 Difference]: Start difference. First operand 349 states and 453 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-26 00:12:11,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:12:11,467 INFO L93 Difference]: Finished difference Result 940 states and 1220 transitions. [2022-11-26 00:12:11,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:12:11,468 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 65 [2022-11-26 00:12:11,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:12:11,471 INFO L225 Difference]: With dead ends: 940 [2022-11-26 00:12:11,471 INFO L226 Difference]: Without dead ends: 601 [2022-11-26 00:12:11,473 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 [2022-11-26 00:12:11,473 INFO L413 NwaCegarLoop]: 384 mSDtfsCounter, 310 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 636 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:12:11,473 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 636 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:12:11,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2022-11-26 00:12:11,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 599. [2022-11-26 00:12:11,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 399 states have (on average 1.3082706766917294) internal successors, (522), 409 states have internal predecessors, (522), 122 states have call successors, (122), 69 states have call predecessors, (122), 72 states have return successors, (128), 125 states have call predecessors, (128), 122 states have call successors, (128) [2022-11-26 00:12:11,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 772 transitions. [2022-11-26 00:12:11,503 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 772 transitions. Word has length 65 [2022-11-26 00:12:11,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:12:11,503 INFO L495 AbstractCegarLoop]: Abstraction has 599 states and 772 transitions. [2022-11-26 00:12:11,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-26 00:12:11,504 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 772 transitions. [2022-11-26 00:12:11,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-26 00:12:11,505 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:12:11,505 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 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] [2022-11-26 00:12:11,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-26 00:12:11,505 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-26 00:12:11,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:12:11,506 INFO L85 PathProgramCache]: Analyzing trace with hash 85403417, now seen corresponding path program 1 times [2022-11-26 00:12:11,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:12:11,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504084207] [2022-11-26 00:12:11,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:12:11,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:12:11,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:12:11,663 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-26 00:12:11,663 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:12:11,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504084207] [2022-11-26 00:12:11,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504084207] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:12:11,664 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:12:11,664 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:12:11,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224648622] [2022-11-26 00:12:11,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:12:11,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:12:11,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:12:11,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:12:11,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:12:11,666 INFO L87 Difference]: Start difference. First operand 599 states and 772 transitions. Second operand has 3 states, 2 states have (on average 22.0) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-26 00:12:11,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:12:11,861 INFO L93 Difference]: Finished difference Result 1200 states and 1562 transitions. [2022-11-26 00:12:11,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:12:11,861 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 22.0) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 68 [2022-11-26 00:12:11,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:12:11,865 INFO L225 Difference]: With dead ends: 1200 [2022-11-26 00:12:11,865 INFO L226 Difference]: Without dead ends: 611 [2022-11-26 00:12:11,867 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:12:11,868 INFO L413 NwaCegarLoop]: 292 mSDtfsCounter, 3 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:12:11,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 581 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:12:11,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2022-11-26 00:12:11,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 607. [2022-11-26 00:12:11,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 607 states, 407 states have (on average 1.307125307125307) internal successors, (532), 417 states have internal predecessors, (532), 122 states have call successors, (122), 69 states have call predecessors, (122), 72 states have return successors, (128), 125 states have call predecessors, (128), 122 states have call successors, (128) [2022-11-26 00:12:11,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 782 transitions. [2022-11-26 00:12:11,901 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 782 transitions. Word has length 68 [2022-11-26 00:12:11,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:12:11,902 INFO L495 AbstractCegarLoop]: Abstraction has 607 states and 782 transitions. [2022-11-26 00:12:11,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 22.0) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-26 00:12:11,902 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 782 transitions. [2022-11-26 00:12:11,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-26 00:12:11,904 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:12:11,904 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 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] [2022-11-26 00:12:11,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-26 00:12:11,906 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-26 00:12:11,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:12:11,906 INFO L85 PathProgramCache]: Analyzing trace with hash -1436095175, now seen corresponding path program 1 times [2022-11-26 00:12:11,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:12:11,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001054912] [2022-11-26 00:12:11,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:12:11,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:12:11,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:12:12,058 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-26 00:12:12,058 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:12:12,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001054912] [2022-11-26 00:12:12,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001054912] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:12:12,059 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:12:12,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:12:12,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437856804] [2022-11-26 00:12:12,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:12:12,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:12:12,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:12:12,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:12:12,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:12:12,061 INFO L87 Difference]: Start difference. First operand 607 states and 782 transitions. Second operand has 3 states, 2 states have (on average 22.5) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-26 00:12:12,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:12:12,333 INFO L93 Difference]: Finished difference Result 940 states and 1204 transitions. [2022-11-26 00:12:12,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:12:12,334 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 22.5) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 69 [2022-11-26 00:12:12,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:12:12,338 INFO L225 Difference]: With dead ends: 940 [2022-11-26 00:12:12,338 INFO L226 Difference]: Without dead ends: 938 [2022-11-26 00:12:12,339 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:12:12,339 INFO L413 NwaCegarLoop]: 351 mSDtfsCounter, 295 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 636 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:12:12,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 636 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:12:12,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 938 states. [2022-11-26 00:12:12,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 938 to 936. [2022-11-26 00:12:12,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 936 states, 630 states have (on average 1.2952380952380953) internal successors, (816), 643 states have internal predecessors, (816), 188 states have call successors, (188), 107 states have call predecessors, (188), 112 states have return successors, (198), 193 states have call predecessors, (198), 188 states have call successors, (198) [2022-11-26 00:12:12,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 936 states to 936 states and 1202 transitions. [2022-11-26 00:12:12,387 INFO L78 Accepts]: Start accepts. Automaton has 936 states and 1202 transitions. Word has length 69 [2022-11-26 00:12:12,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:12:12,387 INFO L495 AbstractCegarLoop]: Abstraction has 936 states and 1202 transitions. [2022-11-26 00:12:12,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 22.5) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-26 00:12:12,388 INFO L276 IsEmpty]: Start isEmpty. Operand 936 states and 1202 transitions. [2022-11-26 00:12:12,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-26 00:12:12,389 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:12:12,389 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 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] [2022-11-26 00:12:12,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-26 00:12:12,389 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-26 00:12:12,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:12:12,390 INFO L85 PathProgramCache]: Analyzing trace with hash -927245350, now seen corresponding path program 1 times [2022-11-26 00:12:12,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:12:12,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316826824] [2022-11-26 00:12:12,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:12:12,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:12:12,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:12:12,571 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-26 00:12:12,571 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:12:12,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316826824] [2022-11-26 00:12:12,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316826824] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:12:12,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [456237726] [2022-11-26 00:12:12,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:12:12,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:12:12,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a36ebb-0c80-46c5-83ca-b9f8ae889d7d/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:12:12,574 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a36ebb-0c80-46c5-83ca-b9f8ae889d7d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:12:12,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a36ebb-0c80-46c5-83ca-b9f8ae889d7d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-26 00:12:12,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:12:12,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 1034 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-26 00:12:12,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:12:13,023 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-26 00:12:13,024 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:12:13,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [456237726] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:12:13,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-26 00:12:13,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [3] total 7 [2022-11-26 00:12:13,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401715107] [2022-11-26 00:12:13,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:12:13,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:12:13,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:12:13,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:12:13,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-26 00:12:13,026 INFO L87 Difference]: Start difference. First operand 936 states and 1202 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-26 00:12:13,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:12:13,333 INFO L93 Difference]: Finished difference Result 1999 states and 2613 transitions. [2022-11-26 00:12:13,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:12:13,334 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 72 [2022-11-26 00:12:13,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:12:13,339 INFO L225 Difference]: With dead ends: 1999 [2022-11-26 00:12:13,340 INFO L226 Difference]: Without dead ends: 1135 [2022-11-26 00:12:13,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-26 00:12:13,343 INFO L413 NwaCegarLoop]: 376 mSDtfsCounter, 72 mSDsluCounter, 1042 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 1418 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:12:13,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 1418 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:12:13,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1135 states. [2022-11-26 00:12:13,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1135 to 946. [2022-11-26 00:12:13,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 946 states, 640 states have (on average 1.290625) internal successors, (826), 648 states have internal predecessors, (826), 188 states have call successors, (188), 107 states have call predecessors, (188), 112 states have return successors, (198), 198 states have call predecessors, (198), 188 states have call successors, (198) [2022-11-26 00:12:13,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 946 states to 946 states and 1212 transitions. [2022-11-26 00:12:13,395 INFO L78 Accepts]: Start accepts. Automaton has 946 states and 1212 transitions. Word has length 72 [2022-11-26 00:12:13,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:12:13,396 INFO L495 AbstractCegarLoop]: Abstraction has 946 states and 1212 transitions. [2022-11-26 00:12:13,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-26 00:12:13,396 INFO L276 IsEmpty]: Start isEmpty. Operand 946 states and 1212 transitions. [2022-11-26 00:12:13,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-26 00:12:13,397 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:12:13,398 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-26 00:12:13,410 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a36ebb-0c80-46c5-83ca-b9f8ae889d7d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-26 00:12:13,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a36ebb-0c80-46c5-83ca-b9f8ae889d7d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-26 00:12:13,605 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-26 00:12:13,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:12:13,606 INFO L85 PathProgramCache]: Analyzing trace with hash -302558920, now seen corresponding path program 1 times [2022-11-26 00:12:13,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:12:13,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809165065] [2022-11-26 00:12:13,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:12:13,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:12:13,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:12:13,758 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-26 00:12:13,758 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:12:13,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809165065] [2022-11-26 00:12:13,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809165065] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:12:13,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [128325327] [2022-11-26 00:12:13,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:12:13,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:12:13,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a36ebb-0c80-46c5-83ca-b9f8ae889d7d/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:12:13,760 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a36ebb-0c80-46c5-83ca-b9f8ae889d7d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:12:13,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a36ebb-0c80-46c5-83ca-b9f8ae889d7d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-26 00:12:14,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:12:14,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 1038 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-26 00:12:14,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:12:14,200 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-26 00:12:14,201 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:12:14,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [128325327] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:12:14,201 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-26 00:12:14,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-11-26 00:12:14,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863864990] [2022-11-26 00:12:14,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:12:14,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:12:14,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:12:14,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:12:14,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:12:14,204 INFO L87 Difference]: Start difference. First operand 946 states and 1212 transitions. Second operand has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-26 00:12:14,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:12:14,396 INFO L93 Difference]: Finished difference Result 952 states and 1221 transitions. [2022-11-26 00:12:14,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:12:14,397 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 75 [2022-11-26 00:12:14,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:12:14,401 INFO L225 Difference]: With dead ends: 952 [2022-11-26 00:12:14,402 INFO L226 Difference]: Without dead ends: 951 [2022-11-26 00:12:14,403 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:12:14,404 INFO L413 NwaCegarLoop]: 295 mSDtfsCounter, 9 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:12:14,404 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 586 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:12:14,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 951 states. [2022-11-26 00:12:14,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 951 to 945. [2022-11-26 00:12:14,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 945 states, 640 states have (on average 1.2859375) internal successors, (823), 647 states have internal predecessors, (823), 188 states have call successors, (188), 107 states have call predecessors, (188), 112 states have return successors, (198), 198 states have call predecessors, (198), 188 states have call successors, (198) [2022-11-26 00:12:14,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 945 states to 945 states and 1209 transitions. [2022-11-26 00:12:14,452 INFO L78 Accepts]: Start accepts. Automaton has 945 states and 1209 transitions. Word has length 75 [2022-11-26 00:12:14,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:12:14,453 INFO L495 AbstractCegarLoop]: Abstraction has 945 states and 1209 transitions. [2022-11-26 00:12:14,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-26 00:12:14,453 INFO L276 IsEmpty]: Start isEmpty. Operand 945 states and 1209 transitions. [2022-11-26 00:12:14,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-26 00:12:14,454 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:12:14,455 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-26 00:12:14,467 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a36ebb-0c80-46c5-83ca-b9f8ae889d7d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-26 00:12:14,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a36ebb-0c80-46c5-83ca-b9f8ae889d7d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-26 00:12:14,662 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-26 00:12:14,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:12:14,663 INFO L85 PathProgramCache]: Analyzing trace with hash -789391857, now seen corresponding path program 1 times [2022-11-26 00:12:14,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:12:14,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191352138] [2022-11-26 00:12:14,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:12:14,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:12:14,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:12:14,844 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-26 00:12:14,844 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:12:14,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191352138] [2022-11-26 00:12:14,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191352138] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:12:14,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [698119507] [2022-11-26 00:12:14,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:12:14,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:12:14,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a36ebb-0c80-46c5-83ca-b9f8ae889d7d/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:12:14,846 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a36ebb-0c80-46c5-83ca-b9f8ae889d7d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:12:14,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a36ebb-0c80-46c5-83ca-b9f8ae889d7d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-26 00:12:15,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:12:15,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 1039 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-26 00:12:15,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:12:15,272 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-26 00:12:15,272 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:12:15,321 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-26 00:12:15,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [698119507] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:12:15,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [491735837] [2022-11-26 00:12:15,325 INFO L159 IcfgInterpreter]: Started Sifa with 54 locations of interest [2022-11-26 00:12:15,325 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:12:15,326 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:12:15,326 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:12:15,326 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:12:15,681 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 11 treesize of output 13 [2022-11-26 00:12:15,753 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 11 treesize of output 13 [2022-11-26 00:12:15,840 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 53 [2022-11-26 00:12:17,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:19,323 INFO L321 Elim1Store]: treesize reduction 900, result has 33.4 percent of original size [2022-11-26 00:12:19,324 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 53 select indices, 53 select index equivalence classes, 1328 disjoint index pairs (out of 1378 index pairs), introduced 53 new quantified variables, introduced 100 case distinctions, treesize of input 272 treesize of output 625 [2022-11-26 00:12:19,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:19,636 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 51 select indices, 51 select index equivalence classes, 1327 disjoint index pairs (out of 1275 index pairs), introduced 51 new quantified variables, introduced 0 case distinctions, treesize of input 262 treesize of output 414 [2022-11-26 00:12:20,553 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 [2022-11-26 00:12:20,561 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 [2022-11-26 00:12:20,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:20,988 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 53 select indices, 53 select index equivalence classes, 1378 disjoint index pairs (out of 1378 index pairs), introduced 53 new quantified variables, introduced 0 case distinctions, treesize of input 266 treesize of output 160 [2022-11-26 00:12:21,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:21,143 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 52 select indices, 52 select index equivalence classes, 1327 disjoint index pairs (out of 1326 index pairs), introduced 52 new quantified variables, introduced 0 case distinctions, treesize of input 261 treesize of output 157 [2022-11-26 00:12:22,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:22,271 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 52 select indices, 52 select index equivalence classes, 1327 disjoint index pairs (out of 1326 index pairs), introduced 52 new quantified variables, introduced 0 case distinctions, treesize of input 261 treesize of output 157 [2022-11-26 00:12:22,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:22,424 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 53 select indices, 53 select index equivalence classes, 1378 disjoint index pairs (out of 1378 index pairs), introduced 53 new quantified variables, introduced 0 case distinctions, treesize of input 266 treesize of output 160 [2022-11-26 00:12:41,161 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 [2022-11-26 00:12:41,174 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 [2022-11-26 00:12:41,208 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 25 treesize of output 1 [2022-11-26 00:12:41,213 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 [2022-11-26 00:12:41,220 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 25 treesize of output 1 [2022-11-26 00:12:41,241 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 25 treesize of output 1 [2022-11-26 00:12:41,246 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 118 treesize of output 108 [2022-11-26 00:12:41,260 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 25 treesize of output 1 [2022-11-26 00:12:41,295 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 25 treesize of output 1 [2022-11-26 00:12:41,299 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 25 treesize of output 1 [2022-11-26 00:12:41,304 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 [2022-11-26 00:12:41,314 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 [2022-11-26 00:12:42,127 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:12:42,198 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 [2022-11-26 00:12:42,250 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 380 treesize of output 294 [2022-11-26 00:12:42,289 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 22 [2022-11-26 00:12:42,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:42,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:42,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:42,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:42,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:42,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:42,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:42,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:42,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:42,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:42,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:42,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:42,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:42,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:42,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:42,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:42,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:42,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:42,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:42,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:42,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:42,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:42,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:42,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:42,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:42,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:42,371 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 27 select indices, 27 select index equivalence classes, 351 disjoint index pairs (out of 351 index pairs), introduced 27 new quantified variables, introduced 0 case distinctions, treesize of input 188 treesize of output 82 [2022-11-26 00:12:42,423 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 22 [2022-11-26 00:12:42,467 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:12:42,526 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 84 [2022-11-26 00:12:42,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:42,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:42,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:42,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:42,573 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 16 [2022-11-26 00:12:42,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:42,609 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-26 00:12:42,655 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 386 treesize of output 300 [2022-11-26 00:12:42,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:42,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:42,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:42,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:42,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:42,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:42,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:42,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:42,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:42,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:42,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:42,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:42,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:42,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:42,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:42,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:42,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:42,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:42,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:42,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:42,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:42,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:42,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:42,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:42,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:42,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:42,738 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 27 select indices, 27 select index equivalence classes, 351 disjoint index pairs (out of 351 index pairs), introduced 27 new quantified variables, introduced 0 case distinctions, treesize of input 188 treesize of output 82 [2022-11-26 00:12:42,798 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 22 [2022-11-26 00:12:42,838 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 28 [2022-11-26 00:12:56,402 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:12:56,473 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 [2022-11-26 00:12:56,515 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 [2022-11-26 00:12:56,552 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 380 treesize of output 294 [2022-11-26 00:12:56,593 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 22 [2022-11-26 00:12:56,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:56,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:56,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:56,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:56,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:56,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:56,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:56,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:56,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:56,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:56,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:56,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:56,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:56,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:56,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:56,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:56,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:56,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:56,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:56,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:56,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:56,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:56,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:56,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:56,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:56,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:56,673 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 27 select indices, 27 select index equivalence classes, 351 disjoint index pairs (out of 351 index pairs), introduced 27 new quantified variables, introduced 0 case distinctions, treesize of input 188 treesize of output 82 [2022-11-26 00:12:56,730 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 22 [2022-11-26 00:12:56,806 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 84 [2022-11-26 00:12:56,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:56,841 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-26 00:12:56,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:56,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:56,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:56,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:56,880 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 16 [2022-11-26 00:12:56,930 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 386 treesize of output 300 [2022-11-26 00:12:56,973 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 28 [2022-11-26 00:12:57,013 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 22 [2022-11-26 00:12:57,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:57,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:57,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:57,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:57,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:57,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:57,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:57,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:57,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:57,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:57,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:57,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:57,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:57,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:57,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:57,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:57,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:57,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:57,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:57,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:57,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:57,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:57,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:57,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:57,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:57,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:12:57,089 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 27 select indices, 27 select index equivalence classes, 351 disjoint index pairs (out of 351 index pairs), introduced 27 new quantified variables, introduced 0 case distinctions, treesize of input 188 treesize of output 82 [2022-11-26 00:13:01,547 INFO L321 Elim1Store]: treesize reduction 20, result has 57.4 percent of original size [2022-11-26 00:13:01,548 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 974 treesize of output 995 [2022-11-26 00:13:22,879 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 380 treesize of output 294 [2022-11-26 00:13:22,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:22,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:22,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:22,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:22,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:22,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:22,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:22,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:22,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:22,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:22,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:22,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:22,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:22,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:22,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:22,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:22,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:22,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:22,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:22,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:22,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:22,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:22,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:22,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:22,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:22,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:22,953 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 27 select indices, 27 select index equivalence classes, 351 disjoint index pairs (out of 351 index pairs), introduced 27 new quantified variables, introduced 0 case distinctions, treesize of input 188 treesize of output 82 [2022-11-26 00:13:23,004 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 22 [2022-11-26 00:13:23,043 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 22 [2022-11-26 00:13:23,112 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 84 [2022-11-26 00:13:23,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:23,150 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-26 00:13:23,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:23,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:23,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:23,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:23,188 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 16 [2022-11-26 00:13:23,236 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 386 treesize of output 300 [2022-11-26 00:13:23,278 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 28 [2022-11-26 00:13:23,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:23,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:23,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:23,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:23,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:23,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:23,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:23,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:23,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:23,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:23,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:23,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:23,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:23,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:23,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:23,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:23,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:23,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:23,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:23,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:23,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:23,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:23,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:23,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:23,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:23,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:23,356 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 27 select indices, 27 select index equivalence classes, 351 disjoint index pairs (out of 351 index pairs), introduced 27 new quantified variables, introduced 0 case distinctions, treesize of input 188 treesize of output 82 [2022-11-26 00:13:23,410 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 22 [2022-11-26 00:13:23,452 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 [2022-11-26 00:13:23,497 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 [2022-11-26 00:13:23,594 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:13:37,061 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 380 treesize of output 294 [2022-11-26 00:13:37,101 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 22 [2022-11-26 00:13:37,138 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 22 [2022-11-26 00:13:37,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:37,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:37,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:37,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:37,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:37,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:37,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:37,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:37,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:37,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:37,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:37,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:37,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:37,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:37,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:37,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:37,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:37,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:37,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:37,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:37,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:37,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:37,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:37,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:37,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:37,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:37,212 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 27 select indices, 27 select index equivalence classes, 351 disjoint index pairs (out of 351 index pairs), introduced 27 new quantified variables, introduced 0 case distinctions, treesize of input 188 treesize of output 82 [2022-11-26 00:13:37,269 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 386 treesize of output 300 [2022-11-26 00:13:37,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:37,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:37,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:37,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:37,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:37,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:37,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:37,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:37,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:37,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:37,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:37,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:37,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:37,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:37,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:37,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:37,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:37,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:37,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:37,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:37,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:37,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:37,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:37,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:37,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:37,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:37,348 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 27 select indices, 27 select index equivalence classes, 351 disjoint index pairs (out of 351 index pairs), introduced 27 new quantified variables, introduced 0 case distinctions, treesize of input 188 treesize of output 82 [2022-11-26 00:13:37,401 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 22 [2022-11-26 00:13:37,441 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 28 [2022-11-26 00:13:37,476 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 [2022-11-26 00:13:37,525 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 84 [2022-11-26 00:13:37,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:37,559 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-26 00:13:37,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:37,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:37,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:37,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:13:37,600 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 16 [2022-11-26 00:13:37,658 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 [2022-11-26 00:13:37,762 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:13:42,456 INFO L321 Elim1Store]: treesize reduction 20, result has 57.4 percent of original size [2022-11-26 00:13:42,456 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 974 treesize of output 995 [2022-11-26 00:13:48,538 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 [2022-11-26 00:13:48,553 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 [2022-11-26 00:13:48,668 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 [2022-11-26 00:13:48,687 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 [2022-11-26 00:13:48,763 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 [2022-11-26 00:13:48,792 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 [2022-11-26 00:14:01,754 INFO L197 IcfgInterpreter]: Interpreting procedure tgt_ring_init with input of size 100 for LOIs [2022-11-26 00:14:01,781 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 [2022-11-26 00:14:01,794 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 [2022-11-26 00:14:02,054 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 [2022-11-26 00:14:02,082 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 25 treesize of output 1 [2022-11-26 00:14:02,101 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 25 treesize of output 1 [2022-11-26 00:14:02,249 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 25 treesize of output 1 [2022-11-26 00:14:02,279 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 25 treesize of output 1 [2022-11-26 00:14:02,348 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-11-26 00:14:02,348 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 357 treesize of output 356 [2022-11-26 00:14:03,147 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 [2022-11-26 00:14:03,160 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 25 treesize of output 1 [2022-11-26 00:14:03,173 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 25 treesize of output 1 [2022-11-26 00:14:03,362 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 [2022-11-26 00:14:03,596 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 [2022-11-26 00:14:03,609 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 25 treesize of output 1 [2022-11-26 00:14:03,628 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 25 treesize of output 1 [2022-11-26 00:14:03,691 INFO L197 IcfgInterpreter]: Interpreting procedure spinlock_check with input of size 114 for LOIs [2022-11-26 00:14:03,718 INFO L197 IcfgInterpreter]: Interpreting procedure tgt_mmap with input of size 105 for LOIs [2022-11-26 00:14:03,763 INFO L197 IcfgInterpreter]: Interpreting procedure uspace_ring_map with input of size 125 for LOIs [2022-11-26 00:14:05,502 INFO L197 IcfgInterpreter]: Interpreting procedure __raw_spin_lock_init with input of size 120 for LOIs [2022-11-26 00:14:05,510 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_malloc with input of size 116 for LOIs [2022-11-26 00:14:05,580 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:14:21,648 WARN L233 SmtUtils]: Spent 10.68s on a formula simplification. DAG size of input: 757 DAG size of output: 653 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:15:04,389 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '33527#(and (= 51 |~#tgt_miscdev~0.base|) (= ~ldvarg9~0.offset 0) (<= ~ldv_state_variable_0~0 3) (= ~ldvarg5~0.base 0) (= |uspace_ring_map_~err~18#1| 0) (<= 0 (+ |uspace_ring_map_vm_insert_page_#res#1| 2147483648)) (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldvarg8~0.offset 0) (<= 0 |uspace_ring_map_~vma#1.base|) (<= 1 ~ldv_state_variable_0~0) (= ~tgt_fops_group2~0.base 0) (= ~ldvarg9~0.base 0) (= ~ldvarg7~0.offset 0) (<= 0 |uspace_ring_map_vm_insert_page_~arg0#1.base|) (<= |uspace_ring_map_vm_insert_page_~arg0#1.offset| 0) (<= 0 |uspace_ring_map_~ring#1.offset|) (<= 0 |uspace_ring_map_#in~ring#1.offset|) (= ~ldv_retval_1~0 0) (<= 47 |uspace_ring_map_~ring#1.base|) (= ~ldvarg3~0.base 0) (<= |uspace_ring_map_#in~vma#1.offset| 0) (<= |uspace_ring_map_vm_insert_page_#in~arg0#1.base| 0) (<= 0 |uspace_ring_map_vm_insert_page_#in~arg0#1.base|) (<= |uspace_ring_map_#in~vma#1.base| 0) (= ~ldv_mutex_lock~0 1) (= |~#rx_ring~0.base| 48) (<= |uspace_ring_map_vm_insert_page_#in~arg2#1.base| 0) (= ~ldvarg1~0 0) (= ~ldvarg5~0.offset 0) (<= |uspace_ring_map_~vma#1.base| 0) (= ~tgt_fops_group1~0.offset 0) (= ~ldvarg2~0.offset 0) (= 49 |~#tgt_poll_wait~0.base|) (= |~#tgt_miscdev~0.offset| 0) (<= ~scsi_tgt_cmd_cache~0.offset 0) (= |~#tx_ring~0.offset| 0) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1) (= |~#rx_ring~0.offset| 0) (= ~ldvarg8~0.base 0) (<= |uspace_ring_map_#in~ring#1.offset| 0) (<= 47 |uspace_ring_map_#in~ring#1.base|) (= ~ldv_state_variable_1~0 1) (<= 0 ~scsi_tgt_cmd_cache~0.offset) (= ~tgt_fops_group1~0.base 0) (= ~ref_cnt~0 0) (<= |uspace_ring_map_~ring#1.base| 47) (= ~ldvarg4~0.offset 0) (= |~#tgt_poll_wait~0.offset| 0) (<= |uspace_ring_map_#in~ring#1.base| 47) (<= |uspace_ring_map_vm_insert_page_#res#1| 2147483647) (< 2147483646 |uspace_ring_map_~i~2#1|) (= |~#tgt_fops~0.offset| 0) (= ~ldvarg0~0 0) (= |#NULL.offset| 0) (<= 0 |uspace_ring_map_vm_insert_page_~arg0#1.offset|) (= ~ldvarg4~0.base 0) (= ~ldv_retval_0~0 0) (<= 0 |uspace_ring_map_vm_insert_page_~arg2#1.base|) (= |uspace_ring_map_~page~0#1.base| 0) (<= 0 |uspace_ring_map_#in~vma#1.base|) (= |~#tgt_fops~0.base| 50) (<= 0 |uspace_ring_map_~vma#1.offset|) (= ~ldvarg6~0 0) (= ~tgt_fops_group2~0.offset 0) (<= |uspace_ring_map_~ring#1.offset| 0) (= ~ldvarg2~0.base 0) (<= |uspace_ring_map_vm_insert_page_~arg2#1.base| 0) (<= |uspace_ring_map_vm_insert_page_~arg0#1.base| 0) (<= 0 |#StackHeapBarrier|) (= ~ldvarg3~0.offset 0) (<= |uspace_ring_map_~vma#1.offset| 0) (<= 0 |uspace_ring_map_vm_insert_page_#in~arg0#1.offset|) (<= |uspace_ring_map_vm_insert_page_#in~arg0#1.offset| 0) (= ~ldvarg7~0.base 0) (= |#NULL.base| 0) (= |~#tx_ring~0.base| 47) (<= 0 |uspace_ring_map_vm_insert_page_#in~arg2#1.base|) (<= 0 |uspace_ring_map_#in~vma#1.offset|))' at error location [2022-11-26 00:15:04,390 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-26 00:15:04,390 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-26 00:15:04,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-11-26 00:15:04,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808576786] [2022-11-26 00:15:04,390 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-26 00:15:04,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-26 00:15:04,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:15:04,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-26 00:15:04,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=245, Invalid=2305, Unknown=0, NotChecked=0, Total=2550 [2022-11-26 00:15:04,393 INFO L87 Difference]: Start difference. First operand 945 states and 1209 transitions. Second operand has 7 states, 6 states have (on average 10.333333333333334) internal successors, (62), 7 states have internal predecessors, (62), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-26 00:15:04,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:15:04,622 INFO L93 Difference]: Finished difference Result 984 states and 1272 transitions. [2022-11-26 00:15:04,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-26 00:15:04,623 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.333333333333334) internal successors, (62), 7 states have internal predecessors, (62), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 76 [2022-11-26 00:15:04,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:15:04,628 INFO L225 Difference]: With dead ends: 984 [2022-11-26 00:15:04,628 INFO L226 Difference]: Without dead ends: 983 [2022-11-26 00:15:04,629 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 173 SyntacticMatches, 7 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 985 ImplicationChecksByTransitivity, 58.8s TimeCoverageRelationStatistics Valid=245, Invalid=2305, Unknown=0, NotChecked=0, Total=2550 [2022-11-26 00:15:04,630 INFO L413 NwaCegarLoop]: 290 mSDtfsCounter, 17 mSDsluCounter, 582 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 872 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:15:04,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 872 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:15:04,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 983 states. [2022-11-26 00:15:04,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 983 to 935. [2022-11-26 00:15:04,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 935 states, 631 states have (on average 1.2805071315372425) internal successors, (808), 637 states have internal predecessors, (808), 188 states have call successors, (188), 107 states have call predecessors, (188), 112 states have return successors, (198), 198 states have call predecessors, (198), 188 states have call successors, (198) [2022-11-26 00:15:04,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 935 states to 935 states and 1194 transitions. [2022-11-26 00:15:04,682 INFO L78 Accepts]: Start accepts. Automaton has 935 states and 1194 transitions. Word has length 76 [2022-11-26 00:15:04,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:15:04,683 INFO L495 AbstractCegarLoop]: Abstraction has 935 states and 1194 transitions. [2022-11-26 00:15:04,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.333333333333334) internal successors, (62), 7 states have internal predecessors, (62), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-26 00:15:04,683 INFO L276 IsEmpty]: Start isEmpty. Operand 935 states and 1194 transitions. [2022-11-26 00:15:04,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-11-26 00:15:04,685 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:15:04,685 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-26 00:15:04,699 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a36ebb-0c80-46c5-83ca-b9f8ae889d7d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-26 00:15:04,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a36ebb-0c80-46c5-83ca-b9f8ae889d7d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:15:04,893 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-26 00:15:04,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:15:04,894 INFO L85 PathProgramCache]: Analyzing trace with hash -1322028909, now seen corresponding path program 1 times [2022-11-26 00:15:04,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:15:04,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988131851] [2022-11-26 00:15:04,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:15:04,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:15:04,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:15:05,046 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-26 00:15:05,047 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:15:05,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988131851] [2022-11-26 00:15:05,047 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988131851] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:15:05,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [911903056] [2022-11-26 00:15:05,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:15:05,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:15:05,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a36ebb-0c80-46c5-83ca-b9f8ae889d7d/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:15:05,049 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a36ebb-0c80-46c5-83ca-b9f8ae889d7d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:15:05,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a36ebb-0c80-46c5-83ca-b9f8ae889d7d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-26 00:15:05,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:15:05,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 998 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-26 00:15:05,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:15:05,578 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-26 00:15:05,578 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:15:05,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [911903056] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:15:05,579 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-26 00:15:05,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2022-11-26 00:15:05,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476162280] [2022-11-26 00:15:05,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:15:05,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:15:05,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:15:05,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:15:05,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:15:05,581 INFO L87 Difference]: Start difference. First operand 935 states and 1194 transitions. Second operand has 4 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-26 00:15:06,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:15:06,172 INFO L93 Difference]: Finished difference Result 1201 states and 1536 transitions. [2022-11-26 00:15:06,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:15:06,173 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 85 [2022-11-26 00:15:06,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:15:06,178 INFO L225 Difference]: With dead ends: 1201 [2022-11-26 00:15:06,178 INFO L226 Difference]: Without dead ends: 1199 [2022-11-26 00:15:06,179 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:15:06,179 INFO L413 NwaCegarLoop]: 548 mSDtfsCounter, 623 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 623 SdHoareTripleChecker+Valid, 699 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:15:06,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [623 Valid, 699 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-26 00:15:06,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1199 states. [2022-11-26 00:15:06,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1199 to 933. [2022-11-26 00:15:06,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 933 states, 631 states have (on average 1.277337559429477) internal successors, (806), 635 states have internal predecessors, (806), 188 states have call successors, (188), 107 states have call predecessors, (188), 112 states have return successors, (198), 198 states have call predecessors, (198), 188 states have call successors, (198) [2022-11-26 00:15:06,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 933 states to 933 states and 1192 transitions. [2022-11-26 00:15:06,236 INFO L78 Accepts]: Start accepts. Automaton has 933 states and 1192 transitions. Word has length 85 [2022-11-26 00:15:06,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:15:06,236 INFO L495 AbstractCegarLoop]: Abstraction has 933 states and 1192 transitions. [2022-11-26 00:15:06,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-26 00:15:06,237 INFO L276 IsEmpty]: Start isEmpty. Operand 933 states and 1192 transitions. [2022-11-26 00:15:06,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-26 00:15:06,238 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:15:06,238 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-26 00:15:06,250 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a36ebb-0c80-46c5-83ca-b9f8ae889d7d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-26 00:15:06,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a36ebb-0c80-46c5-83ca-b9f8ae889d7d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:15:06,445 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-26 00:15:06,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:15:06,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1966777436, now seen corresponding path program 1 times [2022-11-26 00:15:06,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:15:06,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949432610] [2022-11-26 00:15:06,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:15:06,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:15:06,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:15:06,612 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-26 00:15:06,612 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:15:06,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949432610] [2022-11-26 00:15:06,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949432610] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:15:06,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1089929600] [2022-11-26 00:15:06,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:15:06,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:15:06,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a36ebb-0c80-46c5-83ca-b9f8ae889d7d/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:15:06,615 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a36ebb-0c80-46c5-83ca-b9f8ae889d7d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:15:06,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0a36ebb-0c80-46c5-83ca-b9f8ae889d7d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-26 00:15:07,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:15:07,029 INFO L263 TraceCheckSpWp]: Trace formula consists of 999 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-26 00:15:07,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:15:07,151 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-26 00:15:07,152 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:15:07,267 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-26 00:15:07,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1089929600] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:15:07,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1557706920] [2022-11-26 00:15:07,270 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2022-11-26 00:15:07,270 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:15:07,270 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:15:07,270 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:15:07,271 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:15:07,777 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 11 treesize of output 13 [2022-11-26 00:15:07,818 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 53 [2022-11-26 00:15:07,885 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 11 treesize of output 13 [2022-11-26 00:15:09,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:10,786 INFO L321 Elim1Store]: treesize reduction 500, result has 47.4 percent of original size [2022-11-26 00:15:10,787 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 51 select indices, 51 select index equivalence classes, 1277 disjoint index pairs (out of 1275 index pairs), introduced 51 new quantified variables, introduced 50 case distinctions, treesize of input 262 treesize of output 614 [2022-11-26 00:15:11,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:13,291 INFO L321 Elim1Store]: treesize reduction 900, result has 33.4 percent of original size [2022-11-26 00:15:13,292 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 53 select indices, 53 select index equivalence classes, 1328 disjoint index pairs (out of 1378 index pairs), introduced 53 new quantified variables, introduced 100 case distinctions, treesize of input 272 treesize of output 625 [2022-11-26 00:15:14,361 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 [2022-11-26 00:15:14,369 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 [2022-11-26 00:15:14,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:14,761 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 52 select indices, 52 select index equivalence classes, 1327 disjoint index pairs (out of 1326 index pairs), introduced 52 new quantified variables, introduced 0 case distinctions, treesize of input 261 treesize of output 157 [2022-11-26 00:15:14,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:14,946 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 53 select indices, 53 select index equivalence classes, 1378 disjoint index pairs (out of 1378 index pairs), introduced 53 new quantified variables, introduced 0 case distinctions, treesize of input 266 treesize of output 160 [2022-11-26 00:15:16,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:16,062 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 52 select indices, 52 select index equivalence classes, 1327 disjoint index pairs (out of 1326 index pairs), introduced 52 new quantified variables, introduced 0 case distinctions, treesize of input 261 treesize of output 157 [2022-11-26 00:15:16,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:16,298 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 53 select indices, 53 select index equivalence classes, 1378 disjoint index pairs (out of 1378 index pairs), introduced 53 new quantified variables, introduced 0 case distinctions, treesize of input 266 treesize of output 160 [2022-11-26 00:15:35,762 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 [2022-11-26 00:15:35,766 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 [2022-11-26 00:15:35,801 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 [2022-11-26 00:15:35,807 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 25 treesize of output 1 [2022-11-26 00:15:35,813 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 25 treesize of output 1 [2022-11-26 00:15:35,833 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 25 treesize of output 1 [2022-11-26 00:15:35,857 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-11-26 00:15:35,857 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 105 treesize of output 104 [2022-11-26 00:15:35,885 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 25 treesize of output 1 [2022-11-26 00:15:35,919 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 25 treesize of output 1 [2022-11-26 00:15:35,923 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 25 treesize of output 1 [2022-11-26 00:15:35,928 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 [2022-11-26 00:15:35,937 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 [2022-11-26 00:15:36,922 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 84 [2022-11-26 00:15:36,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:36,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:36,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:36,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:36,960 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 16 [2022-11-26 00:15:37,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:37,001 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-26 00:15:37,051 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 [2022-11-26 00:15:37,095 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 [2022-11-26 00:15:37,143 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 386 treesize of output 300 [2022-11-26 00:15:37,182 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 22 [2022-11-26 00:15:37,222 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 28 [2022-11-26 00:15:37,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:37,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:37,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:37,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:37,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:37,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:37,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:37,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:37,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:37,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:37,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:37,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:37,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:37,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:37,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:37,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:37,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:37,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:37,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:37,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:37,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:37,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:37,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:37,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:37,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:37,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:37,315 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 27 select indices, 27 select index equivalence classes, 351 disjoint index pairs (out of 351 index pairs), introduced 27 new quantified variables, introduced 0 case distinctions, treesize of input 188 treesize of output 82 [2022-11-26 00:15:37,380 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 380 treesize of output 294 [2022-11-26 00:15:37,420 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 22 [2022-11-26 00:15:37,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:37,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:37,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:37,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:37,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:37,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:37,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:37,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:37,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:37,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:37,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:37,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:37,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:37,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:37,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:37,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:37,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:37,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:37,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:37,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:37,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:37,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:37,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:37,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:37,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:37,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:37,504 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 27 select indices, 27 select index equivalence classes, 351 disjoint index pairs (out of 351 index pairs), introduced 27 new quantified variables, introduced 0 case distinctions, treesize of input 188 treesize of output 82 [2022-11-26 00:15:37,557 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 22 [2022-11-26 00:15:37,642 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:15:52,358 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:15:52,436 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 386 treesize of output 300 [2022-11-26 00:15:52,483 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 22 [2022-11-26 00:15:52,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:52,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:52,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:52,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:52,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:52,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:52,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:52,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:52,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:52,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:52,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:52,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:52,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:52,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:52,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:52,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:52,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:52,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:52,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:52,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:52,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:52,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:52,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:52,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:52,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:52,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:52,556 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 27 select indices, 27 select index equivalence classes, 351 disjoint index pairs (out of 351 index pairs), introduced 27 new quantified variables, introduced 0 case distinctions, treesize of input 188 treesize of output 82 [2022-11-26 00:15:52,608 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 28 [2022-11-26 00:15:52,659 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 380 treesize of output 294 [2022-11-26 00:15:52,704 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 22 [2022-11-26 00:15:52,742 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 22 [2022-11-26 00:15:52,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:52,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:52,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:52,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:52,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:52,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:52,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:52,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:52,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:52,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:52,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:52,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:52,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:52,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:52,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:52,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:52,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:52,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:52,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:52,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:52,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:52,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:52,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:52,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:52,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:52,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:52,840 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 27 select indices, 27 select index equivalence classes, 351 disjoint index pairs (out of 351 index pairs), introduced 27 new quantified variables, introduced 0 case distinctions, treesize of input 188 treesize of output 82 [2022-11-26 00:15:52,908 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 [2022-11-26 00:15:52,960 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 84 [2022-11-26 00:15:52,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:52,995 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-26 00:15:53,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:53,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:53,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:53,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:53,032 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 16 [2022-11-26 00:15:53,080 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 [2022-11-26 00:15:57,963 INFO L321 Elim1Store]: treesize reduction 20, result has 57.4 percent of original size [2022-11-26 00:15:57,964 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 962 treesize of output 983 [2022-11-26 00:16:29,717 INFO L321 Elim1Store]: treesize reduction 21, result has 41.7 percent of original size [2022-11-26 00:16:29,718 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 1 case distinctions, treesize of input 31 treesize of output 15 [2022-11-26 00:16:29,739 INFO L321 Elim1Store]: treesize reduction 21, result has 41.7 percent of original size [2022-11-26 00:16:29,739 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 1 case distinctions, treesize of input 31 treesize of output 15 [2022-11-26 00:16:29,752 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-26 00:16:29,752 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 1 case distinctions, treesize of input 27 treesize of output 15 [2022-11-26 00:17:07,716 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 84 [2022-11-26 00:17:07,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:07,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:07,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:07,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:07,755 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 16 [2022-11-26 00:17:07,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:07,794 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-26 00:17:07,829 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 [2022-11-26 00:17:07,876 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 380 treesize of output 294 [2022-11-26 00:17:07,914 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 22 [2022-11-26 00:17:07,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:07,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:07,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:07,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:07,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:07,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:07,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:07,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:07,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:07,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:07,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:07,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:07,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:07,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:07,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:07,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:07,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:07,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:07,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:07,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:07,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:07,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:07,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:07,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:07,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:07,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:07,991 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 27 select indices, 27 select index equivalence classes, 351 disjoint index pairs (out of 351 index pairs), introduced 27 new quantified variables, introduced 0 case distinctions, treesize of input 188 treesize of output 82 [2022-11-26 00:17:08,044 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 22 [2022-11-26 00:17:08,077 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 [2022-11-26 00:17:08,121 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 386 treesize of output 300 [2022-11-26 00:17:08,161 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 28 [2022-11-26 00:17:08,203 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 22 [2022-11-26 00:17:08,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:08,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:08,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:08,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:08,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:08,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:08,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:08,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:08,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:08,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:08,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:08,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:08,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:08,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:08,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:08,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:08,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:08,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:08,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:08,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:08,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:08,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:08,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:08,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:08,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:08,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:08,278 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 27 select indices, 27 select index equivalence classes, 351 disjoint index pairs (out of 351 index pairs), introduced 27 new quantified variables, introduced 0 case distinctions, treesize of input 188 treesize of output 82 [2022-11-26 00:17:08,410 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:17:23,396 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:17:23,467 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:17:23,508 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 386 treesize of output 300 [2022-11-26 00:17:23,549 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 22 [2022-11-26 00:17:23,586 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 28 [2022-11-26 00:17:23,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:23,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:23,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:23,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:23,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:23,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:23,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:23,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:23,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:23,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:23,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:23,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:23,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:23,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:23,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:23,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:23,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:23,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:23,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:23,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:23,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:23,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:23,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:23,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:23,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:23,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:23,670 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 27 select indices, 27 select index equivalence classes, 351 disjoint index pairs (out of 351 index pairs), introduced 27 new quantified variables, introduced 0 case distinctions, treesize of input 188 treesize of output 82 [2022-11-26 00:17:23,736 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 84 [2022-11-26 00:17:23,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:23,773 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-26 00:17:23,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:23,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:23,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:23,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:23,812 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 16 [2022-11-26 00:17:23,870 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 [2022-11-26 00:17:23,916 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 380 treesize of output 294 [2022-11-26 00:17:23,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:23,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:23,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:23,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:23,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:23,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:23,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:23,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:23,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:23,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:23,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:23,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:23,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:23,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:23,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:23,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:23,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:23,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:23,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:23,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:23,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:23,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:23,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:23,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:23,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:23,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:23,992 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 27 select indices, 27 select index equivalence classes, 351 disjoint index pairs (out of 351 index pairs), introduced 27 new quantified variables, introduced 0 case distinctions, treesize of input 188 treesize of output 82 [2022-11-26 00:17:24,042 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 22 [2022-11-26 00:17:24,082 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 22 [2022-11-26 00:17:29,031 INFO L321 Elim1Store]: treesize reduction 20, result has 57.4 percent of original size [2022-11-26 00:17:29,032 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 962 treesize of output 983 [2022-11-26 00:17:59,571 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 [2022-11-26 00:17:59,597 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 [2022-11-26 00:17:59,887 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 [2022-11-26 00:17:59,912 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 [2022-11-26 00:18:00,278 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 [2022-11-26 00:18:00,303 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 [2022-11-26 00:18:14,022 INFO L197 IcfgInterpreter]: Interpreting procedure tgt_ring_init with input of size 100 for LOIs [2022-11-26 00:18:14,046 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 [2022-11-26 00:18:14,061 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 [2022-11-26 00:18:14,321 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 [2022-11-26 00:18:14,348 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 25 treesize of output 1 [2022-11-26 00:18:14,366 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 25 treesize of output 1 [2022-11-26 00:18:14,539 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-11-26 00:18:14,539 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 357 treesize of output 356 [2022-11-26 00:18:14,773 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 25 treesize of output 1 [2022-11-26 00:18:14,794 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 25 treesize of output 1 [2022-11-26 00:18:15,259 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 25 treesize of output 1 [2022-11-26 00:18:15,274 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 25 treesize of output 1 [2022-11-26 00:18:15,292 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 [2022-11-26 00:18:15,408 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 [2022-11-26 00:18:15,704 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 25 treesize of output 1 [2022-11-26 00:18:15,717 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-11-26 00:18:15,734 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 [2022-11-26 00:18:15,793 INFO L197 IcfgInterpreter]: Interpreting procedure spinlock_check with input of size 114 for LOIs [2022-11-26 00:18:15,818 INFO L197 IcfgInterpreter]: Interpreting procedure __raw_spin_lock_init with input of size 120 for LOIs [2022-11-26 00:18:15,827 INFO L197 IcfgInterpreter]: Interpreting procedure tgt_open with input of size 113 for LOIs [2022-11-26 00:18:15,871 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_malloc with input of size 199 for LOIs [2022-11-26 00:18:16,052 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:18:38,634 WARN L233 SmtUtils]: Spent 10.80s on a formula simplification. DAG size of input: 756 DAG size of output: 642 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:18:54,947 WARN L233 SmtUtils]: Spent 5.60s on a formula simplification. DAG size of input: 470 DAG size of output: 380 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:19:01,354 WARN L233 SmtUtils]: Spent 5.61s on a formula simplification. DAG size of input: 493 DAG size of output: 404 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)