./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--md--dm-raid.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d38dc5-d612-4eea-957e-f08b56908751/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d38dc5-d612-4eea-957e-f08b56908751/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_e3d38dc5-d612-4eea-957e-f08b56908751/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d38dc5-d612-4eea-957e-f08b56908751/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--md--dm-raid.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d38dc5-d612-4eea-957e-f08b56908751/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d38dc5-d612-4eea-957e-f08b56908751/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 62515c851d4d8c80398352da8857a26e67ae776a292d33d62b0afdc92addb3ad --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 23:20:39,312 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:20:39,314 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:20:39,343 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:20:39,344 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:20:39,347 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:20:39,350 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:20:39,353 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:20:39,355 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:20:39,361 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:20:39,362 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:20:39,364 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:20:39,365 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:20:39,367 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:20:39,369 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:20:39,371 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:20:39,373 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:20:39,373 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:20:39,375 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:20:39,382 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:20:39,383 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:20:39,386 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:20:39,387 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:20:39,388 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:20:39,398 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:20:39,398 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:20:39,399 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:20:39,401 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:20:39,401 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:20:39,402 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:20:39,403 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:20:39,404 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:20:39,407 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:20:39,409 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:20:39,410 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:20:39,410 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:20:39,411 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:20:39,411 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:20:39,411 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:20:39,413 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:20:39,414 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:20:39,415 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d38dc5-d612-4eea-957e-f08b56908751/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-25 23:20:39,454 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:20:39,454 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:20:39,454 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:20:39,458 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:20:39,461 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:20:39,461 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:20:39,461 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:20:39,462 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:20:39,462 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:20:39,462 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 23:20:39,463 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:20:39,463 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:20:39,464 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 23:20:39,464 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 23:20:39,464 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:20:39,464 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 23:20:39,464 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 23:20:39,465 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 23:20:39,465 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:20:39,466 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 23:20:39,466 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:20:39,466 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:20:39,466 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:20:39,467 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:20:39,467 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:20:39,467 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:20:39,467 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:20:39,468 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:20:39,468 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:20:39,468 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:20:39,468 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:20:39,469 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 23:20:39,469 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:20:39,469 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:20:39,469 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 23:20:39,469 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 23:20:39,470 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:20:39,470 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:20:39,470 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_e3d38dc5-d612-4eea-957e-f08b56908751/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d38dc5-d612-4eea-957e-f08b56908751/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 62515c851d4d8c80398352da8857a26e67ae776a292d33d62b0afdc92addb3ad [2022-11-25 23:20:39,779 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:20:39,809 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:20:39,812 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:20:39,813 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:20:39,814 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:20:39,815 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d38dc5-d612-4eea-957e-f08b56908751/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--md--dm-raid.ko-entry_point.cil.out.i [2022-11-25 23:20:42,878 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:20:43,424 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:20:43,425 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d38dc5-d612-4eea-957e-f08b56908751/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--md--dm-raid.ko-entry_point.cil.out.i [2022-11-25 23:20:43,464 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d38dc5-d612-4eea-957e-f08b56908751/bin/utaipan-ByfvJB40ur/data/e443a5d8c/c7ac64657a554e2f992aad22138c651a/FLAGc3e530b79 [2022-11-25 23:20:43,484 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d38dc5-d612-4eea-957e-f08b56908751/bin/utaipan-ByfvJB40ur/data/e443a5d8c/c7ac64657a554e2f992aad22138c651a [2022-11-25 23:20:43,487 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:20:43,489 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:20:43,494 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:20:43,494 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:20:43,498 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:20:43,499 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:20:43" (1/1) ... [2022-11-25 23:20:43,500 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3df699bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:20:43, skipping insertion in model container [2022-11-25 23:20:43,500 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:20:43" (1/1) ... [2022-11-25 23:20:43,508 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:20:43,626 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:20:44,181 WARN L623 FunctionHandler]: Unknown extern function kstrtoull [2022-11-25 23:20:44,222 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-11-25 23:20:44,239 WARN L623 FunctionHandler]: Unknown extern function __list_del_entry [2022-11-25 23:20:44,515 WARN L623 FunctionHandler]: Unknown extern function alloc_pages_current [2022-11-25 23:20:44,530 WARN L623 FunctionHandler]: Unknown extern function __kmalloc [2022-11-25 23:20:44,759 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-11-25 23:20:44,762 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-11-25 23:20:44,764 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-11-25 23:20:44,792 WARN L623 FunctionHandler]: Unknown extern function mddev_init [2022-11-25 23:20:44,801 WARN L623 FunctionHandler]: Unknown extern function md_rdev_init [2022-11-25 23:20:44,809 WARN L623 FunctionHandler]: Unknown extern function dm_put_device [2022-11-25 23:20:44,810 WARN L623 FunctionHandler]: Unknown extern function md_rdev_clear [2022-11-25 23:20:44,810 WARN L623 FunctionHandler]: Unknown extern function dm_put_device [2022-11-25 23:20:44,811 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:20:44,818 WARN L623 FunctionHandler]: Unknown extern function dm_table_get_mode [2022-11-25 23:20:44,824 WARN L623 FunctionHandler]: Unknown extern function dm_get_device [2022-11-25 23:20:44,829 WARN L623 FunctionHandler]: Unknown extern function dm_table_get_mode [2022-11-25 23:20:44,829 WARN L623 FunctionHandler]: Unknown extern function dm_get_device [2022-11-25 23:20:44,864 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:20:44,875 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:20:44,882 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:20:44,886 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:20:44,960 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:20:44,965 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-11-25 23:20:44,977 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-11-25 23:20:44,979 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-11-25 23:20:44,986 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-11-25 23:20:44,991 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-11-25 23:20:45,000 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-11-25 23:20:45,004 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-11-25 23:20:45,007 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-11-25 23:20:45,010 WARN L623 FunctionHandler]: Unknown extern function raid5_set_cache_size [2022-11-25 23:20:45,012 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-11-25 23:20:45,013 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-11-25 23:20:45,016 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-11-25 23:20:45,023 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-11-25 23:20:45,028 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:20:45,034 WARN L623 FunctionHandler]: Unknown extern function dm_set_target_max_io_len [2022-11-25 23:20:45,045 WARN L623 FunctionHandler]: Unknown extern function dm_table_event [2022-11-25 23:20:45,053 WARN L623 FunctionHandler]: Unknown extern function mddev_congested [2022-11-25 23:20:45,057 WARN L623 FunctionHandler]: Unknown extern function sync_page_io [2022-11-25 23:20:45,059 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:20:45,060 WARN L623 FunctionHandler]: Unknown extern function md_error [2022-11-25 23:20:45,089 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:20:45,106 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:20:45,107 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:20:45,108 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:20:45,108 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:20:45,116 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:20:45,118 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:20:45,122 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:20:45,124 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:20:45,126 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:20:45,128 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:20:45,128 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:20:45,130 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:20:45,135 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:20:45,154 WARN L623 FunctionHandler]: Unknown extern function dm_put_device [2022-11-25 23:20:45,155 WARN L623 FunctionHandler]: Unknown extern function put_page [2022-11-25 23:20:45,159 WARN L623 FunctionHandler]: Unknown extern function dm_put_device [2022-11-25 23:20:45,167 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-11-25 23:20:45,175 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:20:45,181 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:20:45,194 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-11-25 23:20:45,195 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-11-25 23:20:45,196 WARN L623 FunctionHandler]: Unknown extern function md_run [2022-11-25 23:20:45,197 WARN L623 FunctionHandler]: Unknown extern function mddev_unlock [2022-11-25 23:20:45,198 WARN L623 FunctionHandler]: Unknown extern function dm_table_add_target_callbacks [2022-11-25 23:20:45,199 WARN L623 FunctionHandler]: Unknown extern function mddev_suspend [2022-11-25 23:20:45,200 WARN L623 FunctionHandler]: Unknown extern function md_stop [2022-11-25 23:20:45,208 WARN L623 FunctionHandler]: Unknown extern function md_stop [2022-11-25 23:20:45,239 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-11-25 23:20:45,243 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-11-25 23:20:45,244 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-11-25 23:20:45,246 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-11-25 23:20:45,247 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-11-25 23:20:45,248 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-11-25 23:20:45,252 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-11-25 23:20:45,255 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-11-25 23:20:45,256 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-11-25 23:20:45,258 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-11-25 23:20:45,261 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-11-25 23:20:45,265 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-11-25 23:20:45,266 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-11-25 23:20:45,271 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-11-25 23:20:45,273 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-11-25 23:20:45,276 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-11-25 23:20:45,278 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-11-25 23:20:45,279 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-11-25 23:20:45,282 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-11-25 23:20:45,284 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-11-25 23:20:45,286 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-11-25 23:20:45,288 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-11-25 23:20:45,289 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-11-25 23:20:45,294 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-11-25 23:20:45,296 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-11-25 23:20:45,302 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-11-25 23:20:45,303 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:20:45,305 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-11-25 23:20:45,306 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-11-25 23:20:45,307 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-11-25 23:20:45,309 WARN L623 FunctionHandler]: Unknown extern function md_reap_sync_thread [2022-11-25 23:20:45,310 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-11-25 23:20:45,318 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-11-25 23:20:45,322 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-11-25 23:20:45,322 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-11-25 23:20:45,324 WARN L623 FunctionHandler]: Unknown extern function md_wakeup_thread [2022-11-25 23:20:45,324 WARN L623 FunctionHandler]: Unknown extern function md_wakeup_thread [2022-11-25 23:20:45,334 WARN L623 FunctionHandler]: Unknown extern function blk_limits_io_min [2022-11-25 23:20:45,335 WARN L623 FunctionHandler]: Unknown extern function blk_limits_io_opt [2022-11-25 23:20:45,339 WARN L623 FunctionHandler]: Unknown extern function md_stop_writes [2022-11-25 23:20:45,342 WARN L623 FunctionHandler]: Unknown extern function mddev_suspend [2022-11-25 23:20:45,348 WARN L623 FunctionHandler]: Unknown extern function sync_page_io [2022-11-25 23:20:45,353 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:20:45,364 WARN L623 FunctionHandler]: Unknown extern function bitmap_load [2022-11-25 23:20:45,365 WARN L623 FunctionHandler]: Unknown extern function mddev_resume [2022-11-25 23:20:45,374 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:20:45,384 WARN L623 FunctionHandler]: Unknown extern function dm_register_target [2022-11-25 23:20:45,387 WARN L623 FunctionHandler]: Unknown extern function dm_unregister_target [2022-11-25 23:20:45,412 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-11-25 23:20:45,424 WARN L623 FunctionHandler]: Unknown extern function ldv_preresume_2 [2022-11-25 23:20:45,426 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-11-25 23:20:45,427 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-11-25 23:20:45,427 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-11-25 23:20:45,428 WARN L623 FunctionHandler]: Unknown extern function flush_workqueue [2022-11-25 23:20:45,429 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-11-25 23:20:45,430 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 23:20:45,431 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 23:20:45,431 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 23:20:45,432 WARN L623 FunctionHandler]: Unknown extern function mutex_trylock [2022-11-25 23:20:45,433 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 23:20:45,433 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 23:20:45,434 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 23:20:45,434 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_interruptible [2022-11-25 23:20:45,437 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 23:20:45,438 WARN L623 FunctionHandler]: Unknown extern function mutex_trylock [2022-11-25 23:20:45,442 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_e3d38dc5-d612-4eea-957e-f08b56908751/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--md--dm-raid.ko-entry_point.cil.out.i[217361,217374] [2022-11-25 23:20:45,617 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:20:45,640 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:20:45,747 WARN L623 FunctionHandler]: Unknown extern function kstrtoull [2022-11-25 23:20:45,748 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-11-25 23:20:45,749 WARN L623 FunctionHandler]: Unknown extern function __list_del_entry [2022-11-25 23:20:45,753 WARN L623 FunctionHandler]: Unknown extern function alloc_pages_current [2022-11-25 23:20:45,754 WARN L623 FunctionHandler]: Unknown extern function __kmalloc [2022-11-25 23:20:45,769 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-11-25 23:20:45,770 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-11-25 23:20:45,774 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-11-25 23:20:45,777 WARN L623 FunctionHandler]: Unknown extern function mddev_init [2022-11-25 23:20:45,778 WARN L623 FunctionHandler]: Unknown extern function md_rdev_init [2022-11-25 23:20:45,779 WARN L623 FunctionHandler]: Unknown extern function dm_put_device [2022-11-25 23:20:45,780 WARN L623 FunctionHandler]: Unknown extern function md_rdev_clear [2022-11-25 23:20:45,780 WARN L623 FunctionHandler]: Unknown extern function dm_put_device [2022-11-25 23:20:45,782 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:20:45,787 WARN L623 FunctionHandler]: Unknown extern function dm_table_get_mode [2022-11-25 23:20:45,788 WARN L623 FunctionHandler]: Unknown extern function dm_get_device [2022-11-25 23:20:45,819 WARN L623 FunctionHandler]: Unknown extern function dm_table_get_mode [2022-11-25 23:20:45,820 WARN L623 FunctionHandler]: Unknown extern function dm_get_device [2022-11-25 23:20:45,821 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:20:45,824 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:20:45,824 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:20:45,826 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:20:45,835 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:20:45,837 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-11-25 23:20:45,839 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-11-25 23:20:45,840 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-11-25 23:20:45,847 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-11-25 23:20:45,849 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-11-25 23:20:45,850 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-11-25 23:20:45,851 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-11-25 23:20:45,852 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-11-25 23:20:45,853 WARN L623 FunctionHandler]: Unknown extern function raid5_set_cache_size [2022-11-25 23:20:45,854 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-11-25 23:20:45,854 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-11-25 23:20:45,855 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-11-25 23:20:45,856 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-11-25 23:20:45,858 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:20:45,859 WARN L623 FunctionHandler]: Unknown extern function dm_set_target_max_io_len [2022-11-25 23:20:45,862 WARN L623 FunctionHandler]: Unknown extern function dm_table_event [2022-11-25 23:20:45,863 WARN L623 FunctionHandler]: Unknown extern function mddev_congested [2022-11-25 23:20:45,864 WARN L623 FunctionHandler]: Unknown extern function sync_page_io [2022-11-25 23:20:45,864 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:20:45,864 WARN L623 FunctionHandler]: Unknown extern function md_error [2022-11-25 23:20:45,874 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:20:45,885 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:20:45,886 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:20:45,888 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:20:45,889 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:20:45,890 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:20:45,893 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:20:45,893 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:20:45,894 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:20:45,895 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:20:45,896 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:20:45,896 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:20:45,896 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:20:45,898 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:20:45,904 WARN L623 FunctionHandler]: Unknown extern function dm_put_device [2022-11-25 23:20:45,905 WARN L623 FunctionHandler]: Unknown extern function put_page [2022-11-25 23:20:45,905 WARN L623 FunctionHandler]: Unknown extern function dm_put_device [2022-11-25 23:20:45,906 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-11-25 23:20:45,909 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:20:45,910 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:20:45,916 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-11-25 23:20:45,917 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-11-25 23:20:45,918 WARN L623 FunctionHandler]: Unknown extern function md_run [2022-11-25 23:20:45,918 WARN L623 FunctionHandler]: Unknown extern function mddev_unlock [2022-11-25 23:20:45,919 WARN L623 FunctionHandler]: Unknown extern function dm_table_add_target_callbacks [2022-11-25 23:20:45,919 WARN L623 FunctionHandler]: Unknown extern function mddev_suspend [2022-11-25 23:20:45,919 WARN L623 FunctionHandler]: Unknown extern function md_stop [2022-11-25 23:20:45,921 WARN L623 FunctionHandler]: Unknown extern function md_stop [2022-11-25 23:20:45,932 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-11-25 23:20:45,934 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-11-25 23:20:45,937 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-11-25 23:20:45,938 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-11-25 23:20:45,939 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-11-25 23:20:45,940 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-11-25 23:20:45,941 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-11-25 23:20:45,943 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-11-25 23:20:45,944 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-11-25 23:20:45,946 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-11-25 23:20:45,947 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-11-25 23:20:45,949 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-11-25 23:20:45,949 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-11-25 23:20:45,950 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-11-25 23:20:45,952 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-11-25 23:20:45,953 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-11-25 23:20:45,953 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-11-25 23:20:45,958 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-11-25 23:20:45,959 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-11-25 23:20:45,961 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-11-25 23:20:45,962 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-11-25 23:20:45,963 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-11-25 23:20:45,964 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-11-25 23:20:45,965 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-11-25 23:20:45,973 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-11-25 23:20:45,976 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-11-25 23:20:45,976 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:20:45,977 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-11-25 23:20:45,978 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-11-25 23:20:45,979 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-11-25 23:20:45,979 WARN L623 FunctionHandler]: Unknown extern function md_reap_sync_thread [2022-11-25 23:20:45,980 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-11-25 23:20:45,981 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-11-25 23:20:45,981 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-11-25 23:20:45,982 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-11-25 23:20:45,983 WARN L623 FunctionHandler]: Unknown extern function md_wakeup_thread [2022-11-25 23:20:45,988 WARN L623 FunctionHandler]: Unknown extern function md_wakeup_thread [2022-11-25 23:20:45,994 WARN L623 FunctionHandler]: Unknown extern function blk_limits_io_min [2022-11-25 23:20:45,994 WARN L623 FunctionHandler]: Unknown extern function blk_limits_io_opt [2022-11-25 23:20:45,995 WARN L623 FunctionHandler]: Unknown extern function md_stop_writes [2022-11-25 23:20:45,995 WARN L623 FunctionHandler]: Unknown extern function mddev_suspend [2022-11-25 23:20:45,997 WARN L623 FunctionHandler]: Unknown extern function sync_page_io [2022-11-25 23:20:45,997 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:20:46,003 WARN L623 FunctionHandler]: Unknown extern function bitmap_load [2022-11-25 23:20:46,003 WARN L623 FunctionHandler]: Unknown extern function mddev_resume [2022-11-25 23:20:46,008 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:20:46,009 WARN L623 FunctionHandler]: Unknown extern function dm_register_target [2022-11-25 23:20:46,010 WARN L623 FunctionHandler]: Unknown extern function dm_unregister_target [2022-11-25 23:20:46,024 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-11-25 23:20:46,029 WARN L623 FunctionHandler]: Unknown extern function ldv_preresume_2 [2022-11-25 23:20:46,032 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-11-25 23:20:46,032 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-11-25 23:20:46,033 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-11-25 23:20:46,033 WARN L623 FunctionHandler]: Unknown extern function flush_workqueue [2022-11-25 23:20:46,034 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-11-25 23:20:46,034 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 23:20:46,034 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 23:20:46,035 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 23:20:46,035 WARN L623 FunctionHandler]: Unknown extern function mutex_trylock [2022-11-25 23:20:46,035 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 23:20:46,036 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 23:20:46,036 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 23:20:46,037 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_interruptible [2022-11-25 23:20:46,041 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 23:20:46,042 WARN L623 FunctionHandler]: Unknown extern function mutex_trylock [2022-11-25 23:20:46,042 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_e3d38dc5-d612-4eea-957e-f08b56908751/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--md--dm-raid.ko-entry_point.cil.out.i[217361,217374] [2022-11-25 23:20:46,061 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:20:46,174 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:20:46,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:20:46 WrapperNode [2022-11-25 23:20:46,174 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:20:46,176 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:20:46,176 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:20:46,177 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:20:46,184 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:20:46" (1/1) ... [2022-11-25 23:20:46,276 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:20:46" (1/1) ... [2022-11-25 23:20:46,449 INFO L138 Inliner]: procedures = 221, calls = 1639, calls flagged for inlining = 84, calls inlined = 76, statements flattened = 4470 [2022-11-25 23:20:46,450 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:20:46,450 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:20:46,450 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:20:46,451 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:20:46,461 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:20:46" (1/1) ... [2022-11-25 23:20:46,461 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:20:46" (1/1) ... [2022-11-25 23:20:46,497 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:20:46" (1/1) ... [2022-11-25 23:20:46,497 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:20:46" (1/1) ... [2022-11-25 23:20:46,616 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:20:46" (1/1) ... [2022-11-25 23:20:46,641 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:20:46" (1/1) ... [2022-11-25 23:20:46,663 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:20:46" (1/1) ... [2022-11-25 23:20:46,679 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:20:46" (1/1) ... [2022-11-25 23:20:46,698 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:20:46,699 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:20:46,699 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:20:46,699 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:20:46,700 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:20:46" (1/1) ... [2022-11-25 23:20:46,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:20:46,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d38dc5-d612-4eea-957e-f08b56908751/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:20:46,736 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d38dc5-d612-4eea-957e-f08b56908751/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:20:46,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d38dc5-d612-4eea-957e-f08b56908751/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:20:46,775 INFO L130 BoogieDeclarations]: Found specification of procedure dm_table_get_mode [2022-11-25 23:20:46,775 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_table_get_mode [2022-11-25 23:20:46,775 INFO L130 BoogieDeclarations]: Found specification of procedure bdev_get_queue [2022-11-25 23:20:46,775 INFO L138 BoogieDeclarations]: Found implementation of procedure bdev_get_queue [2022-11-25 23:20:46,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-25 23:20:46,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-25 23:20:46,776 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-25 23:20:46,776 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-25 23:20:46,776 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-11-25 23:20:46,776 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-11-25 23:20:46,776 INFO L130 BoogieDeclarations]: Found specification of procedure raid10_md_layout_to_format [2022-11-25 23:20:46,777 INFO L138 BoogieDeclarations]: Found implementation of procedure raid10_md_layout_to_format [2022-11-25 23:20:46,777 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-25 23:20:46,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-25 23:20:46,777 INFO L130 BoogieDeclarations]: Found specification of procedure raid_io_hints [2022-11-25 23:20:46,777 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_io_hints [2022-11-25 23:20:46,777 INFO L130 BoogieDeclarations]: Found specification of procedure raid_message [2022-11-25 23:20:46,777 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_message [2022-11-25 23:20:46,777 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-25 23:20:46,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-25 23:20:46,777 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-25 23:20:46,777 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-25 23:20:46,778 INFO L130 BoogieDeclarations]: Found specification of procedure raid10_md_layout_to_copies [2022-11-25 23:20:46,778 INFO L138 BoogieDeclarations]: Found implementation of procedure raid10_md_layout_to_copies [2022-11-25 23:20:46,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-25 23:20:46,778 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-25 23:20:46,778 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-25 23:20:46,778 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-25 23:20:46,778 INFO L130 BoogieDeclarations]: Found specification of procedure context_free [2022-11-25 23:20:46,778 INFO L138 BoogieDeclarations]: Found implementation of procedure context_free [2022-11-25 23:20:46,778 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-11-25 23:20:46,778 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-11-25 23:20:46,779 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-11-25 23:20:46,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-11-25 23:20:46,779 INFO L130 BoogieDeclarations]: Found specification of procedure super_validate [2022-11-25 23:20:46,779 INFO L138 BoogieDeclarations]: Found implementation of procedure super_validate [2022-11-25 23:20:46,779 INFO L130 BoogieDeclarations]: Found specification of procedure do_table_event [2022-11-25 23:20:46,779 INFO L138 BoogieDeclarations]: Found implementation of procedure do_table_event [2022-11-25 23:20:46,783 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 23:20:46,783 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-25 23:20:46,783 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-25 23:20:46,783 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 23:20:46,783 INFO L130 BoogieDeclarations]: Found specification of procedure sync_page_io [2022-11-25 23:20:46,783 INFO L138 BoogieDeclarations]: Found implementation of procedure sync_page_io [2022-11-25 23:20:46,784 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-25 23:20:46,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-25 23:20:46,784 INFO L130 BoogieDeclarations]: Found specification of procedure to_sector [2022-11-25 23:20:46,784 INFO L138 BoogieDeclarations]: Found implementation of procedure to_sector [2022-11-25 23:20:46,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 23:20:46,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-25 23:20:46,784 INFO L130 BoogieDeclarations]: Found specification of procedure raid_iterate_devices [2022-11-25 23:20:46,784 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_iterate_devices [2022-11-25 23:20:46,784 INFO L130 BoogieDeclarations]: Found specification of procedure dm_put_device [2022-11-25 23:20:46,784 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_put_device [2022-11-25 23:20:46,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_reconfig_mutex_of_mddev [2022-11-25 23:20:46,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_reconfig_mutex_of_mddev [2022-11-25 23:20:46,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 23:20:46,785 INFO L130 BoogieDeclarations]: Found specification of procedure mddev_suspend [2022-11-25 23:20:46,785 INFO L138 BoogieDeclarations]: Found implementation of procedure mddev_suspend [2022-11-25 23:20:46,785 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-25 23:20:46,785 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-25 23:20:46,785 INFO L130 BoogieDeclarations]: Found specification of procedure super_sync [2022-11-25 23:20:46,785 INFO L138 BoogieDeclarations]: Found implementation of procedure super_sync [2022-11-25 23:20:46,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 23:20:46,786 INFO L130 BoogieDeclarations]: Found specification of procedure is_power_of_2 [2022-11-25 23:20:46,786 INFO L138 BoogieDeclarations]: Found implementation of procedure is_power_of_2 [2022-11-25 23:20:46,786 INFO L130 BoogieDeclarations]: Found specification of procedure md_wakeup_thread [2022-11-25 23:20:46,786 INFO L138 BoogieDeclarations]: Found implementation of procedure md_wakeup_thread [2022-11-25 23:20:46,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-25 23:20:46,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-25 23:20:46,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 23:20:46,786 INFO L130 BoogieDeclarations]: Found specification of procedure raid_merge [2022-11-25 23:20:46,786 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_merge [2022-11-25 23:20:46,787 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-25 23:20:46,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-25 23:20:46,787 INFO L130 BoogieDeclarations]: Found specification of procedure raid_map [2022-11-25 23:20:46,787 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_map [2022-11-25 23:20:46,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:20:46,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 23:20:46,787 INFO L130 BoogieDeclarations]: Found specification of procedure strcasecmp [2022-11-25 23:20:46,787 INFO L138 BoogieDeclarations]: Found implementation of procedure strcasecmp [2022-11-25 23:20:46,787 INFO L130 BoogieDeclarations]: Found specification of procedure md_stop [2022-11-25 23:20:46,787 INFO L138 BoogieDeclarations]: Found implementation of procedure md_stop [2022-11-25 23:20:46,788 INFO L130 BoogieDeclarations]: Found specification of procedure raid_status [2022-11-25 23:20:46,788 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_status [2022-11-25 23:20:46,788 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtoul [2022-11-25 23:20:46,788 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtoul [2022-11-25 23:20:46,788 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-25 23:20:46,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-25 23:20:46,788 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-25 23:20:46,788 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-25 23:20:46,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 23:20:46,788 INFO L130 BoogieDeclarations]: Found specification of procedure raid_dtr [2022-11-25 23:20:46,789 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_dtr [2022-11-25 23:20:46,789 INFO L130 BoogieDeclarations]: Found specification of procedure dm_get_device [2022-11-25 23:20:46,789 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_get_device [2022-11-25 23:20:46,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:20:46,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:20:46,789 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-25 23:20:46,789 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-25 23:20:47,562 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:20:47,565 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:20:47,940 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-25 23:20:51,508 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:20:52,450 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:20:52,450 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 23:20:52,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:20:52 BoogieIcfgContainer [2022-11-25 23:20:52,454 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:20:52,456 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:20:52,456 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:20:52,459 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:20:52,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:20:43" (1/3) ... [2022-11-25 23:20:52,460 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25236a91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:20:52, skipping insertion in model container [2022-11-25 23:20:52,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:20:46" (2/3) ... [2022-11-25 23:20:52,460 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25236a91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:20:52, skipping insertion in model container [2022-11-25 23:20:52,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:20:52" (3/3) ... [2022-11-25 23:20:52,462 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--md--dm-raid.ko-entry_point.cil.out.i [2022-11-25 23:20:52,481 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:20:52,481 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 23:20:52,547 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:20:52,553 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;@3a6098f5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:20:52,553 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 23:20:52,561 INFO L276 IsEmpty]: Start isEmpty. Operand has 874 states, 613 states have (on average 1.468189233278956) internal successors, (900), 634 states have internal predecessors, (900), 216 states have call successors, (216), 44 states have call predecessors, (216), 43 states have return successors, (212), 208 states have call predecessors, (212), 212 states have call successors, (212) [2022-11-25 23:20:52,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-11-25 23:20:52,576 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:20:52,576 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:20:52,577 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:20:52,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:20:52,582 INFO L85 PathProgramCache]: Analyzing trace with hash -2008612512, now seen corresponding path program 1 times [2022-11-25 23:20:52,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:20:52,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309688636] [2022-11-25 23:20:52,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:20:52,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:20:53,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:20:53,688 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2022-11-25 23:20:53,689 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:20:53,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309688636] [2022-11-25 23:20:53,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309688636] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:20:53,694 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:20:53,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:20:53,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042638737] [2022-11-25 23:20:53,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:20:53,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:20:53,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:20:53,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:20:53,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:20:53,759 INFO L87 Difference]: Start difference. First operand has 874 states, 613 states have (on average 1.468189233278956) internal successors, (900), 634 states have internal predecessors, (900), 216 states have call successors, (216), 44 states have call predecessors, (216), 43 states have return successors, (212), 208 states have call predecessors, (212), 212 states have call successors, (212) Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2022-11-25 23:20:55,822 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:20:59,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:20:59,424 INFO L93 Difference]: Finished difference Result 2528 states and 3855 transitions. [2022-11-25 23:20:59,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:20:59,426 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 170 [2022-11-25 23:20:59,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:20:59,457 INFO L225 Difference]: With dead ends: 2528 [2022-11-25 23:20:59,457 INFO L226 Difference]: Without dead ends: 1675 [2022-11-25 23:20:59,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:20:59,473 INFO L413 NwaCegarLoop]: 1379 mSDtfsCounter, 1237 mSDsluCounter, 1183 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1237 SdHoareTripleChecker+Valid, 2562 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-11-25 23:20:59,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1237 Valid, 2562 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 270 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-11-25 23:20:59,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1675 states. [2022-11-25 23:20:59,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1675 to 1672. [2022-11-25 23:20:59,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1672 states, 1190 states have (on average 1.464705882352941) internal successors, (1743), 1216 states have internal predecessors, (1743), 400 states have call successors, (400), 82 states have call predecessors, (400), 81 states have return successors, (395), 387 states have call predecessors, (395), 395 states have call successors, (395) [2022-11-25 23:20:59,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1672 states to 1672 states and 2538 transitions. [2022-11-25 23:20:59,756 INFO L78 Accepts]: Start accepts. Automaton has 1672 states and 2538 transitions. Word has length 170 [2022-11-25 23:20:59,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:20:59,760 INFO L495 AbstractCegarLoop]: Abstraction has 1672 states and 2538 transitions. [2022-11-25 23:20:59,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2022-11-25 23:20:59,760 INFO L276 IsEmpty]: Start isEmpty. Operand 1672 states and 2538 transitions. [2022-11-25 23:20:59,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-11-25 23:20:59,776 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:20:59,777 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:20:59,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 23:20:59,778 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:20:59,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:20:59,779 INFO L85 PathProgramCache]: Analyzing trace with hash -1382852614, now seen corresponding path program 1 times [2022-11-25 23:20:59,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:20:59,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202636506] [2022-11-25 23:20:59,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:20:59,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:20:59,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:21:00,222 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2022-11-25 23:21:00,223 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:21:00,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202636506] [2022-11-25 23:21:00,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202636506] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:21:00,228 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:21:00,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:21:00,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366064097] [2022-11-25 23:21:00,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:21:00,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:21:00,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:21:00,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:21:00,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:21:00,234 INFO L87 Difference]: Start difference. First operand 1672 states and 2538 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-25 23:21:01,783 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:21:05,304 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 23:21:06,750 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:21:07,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:21:07,265 INFO L93 Difference]: Finished difference Result 3291 states and 4997 transitions. [2022-11-25 23:21:07,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:21:07,266 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 173 [2022-11-25 23:21:07,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:21:07,295 INFO L225 Difference]: With dead ends: 3291 [2022-11-25 23:21:07,295 INFO L226 Difference]: Without dead ends: 3288 [2022-11-25 23:21:07,300 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:21:07,304 INFO L413 NwaCegarLoop]: 1368 mSDtfsCounter, 1254 mSDsluCounter, 1122 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1254 SdHoareTripleChecker+Valid, 2490 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-11-25 23:21:07,304 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1254 Valid, 2490 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 258 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2022-11-25 23:21:07,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3288 states. [2022-11-25 23:21:07,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3288 to 3285. [2022-11-25 23:21:07,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3285 states, 2346 states have (on average 1.4676044330775788) internal successors, (3443), 2394 states have internal predecessors, (3443), 777 states have call successors, (777), 162 states have call predecessors, (777), 161 states have return successors, (772), 756 states have call predecessors, (772), 772 states have call successors, (772) [2022-11-25 23:21:07,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3285 states to 3285 states and 4992 transitions. [2022-11-25 23:21:07,507 INFO L78 Accepts]: Start accepts. Automaton has 3285 states and 4992 transitions. Word has length 173 [2022-11-25 23:21:07,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:21:07,509 INFO L495 AbstractCegarLoop]: Abstraction has 3285 states and 4992 transitions. [2022-11-25 23:21:07,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-25 23:21:07,510 INFO L276 IsEmpty]: Start isEmpty. Operand 3285 states and 4992 transitions. [2022-11-25 23:21:07,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-11-25 23:21:07,514 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:21:07,514 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:21:07,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 23:21:07,514 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:21:07,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:21:07,515 INFO L85 PathProgramCache]: Analyzing trace with hash 80945900, now seen corresponding path program 1 times [2022-11-25 23:21:07,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:21:07,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351510207] [2022-11-25 23:21:07,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:21:07,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:21:07,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:21:07,909 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2022-11-25 23:21:07,909 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:21:07,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351510207] [2022-11-25 23:21:07,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351510207] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:21:07,910 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:21:07,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:21:07,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244367798] [2022-11-25 23:21:07,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:21:07,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:21:07,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:21:07,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:21:07,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:21:07,914 INFO L87 Difference]: Start difference. First operand 3285 states and 4992 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-25 23:21:11,347 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 23:21:13,315 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:21:13,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:21:13,950 INFO L93 Difference]: Finished difference Result 3292 states and 4998 transitions. [2022-11-25 23:21:13,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:21:13,951 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 174 [2022-11-25 23:21:13,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:21:13,969 INFO L225 Difference]: With dead ends: 3292 [2022-11-25 23:21:13,969 INFO L226 Difference]: Without dead ends: 3289 [2022-11-25 23:21:13,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:21:13,974 INFO L413 NwaCegarLoop]: 1368 mSDtfsCounter, 1251 mSDsluCounter, 1125 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1251 SdHoareTripleChecker+Valid, 2493 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-11-25 23:21:13,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1251 Valid, 2493 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 258 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-11-25 23:21:13,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3289 states. [2022-11-25 23:21:14,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3289 to 3286. [2022-11-25 23:21:14,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3286 states, 2347 states have (on average 1.4674051981252663) internal successors, (3444), 2395 states have internal predecessors, (3444), 777 states have call successors, (777), 162 states have call predecessors, (777), 161 states have return successors, (772), 756 states have call predecessors, (772), 772 states have call successors, (772) [2022-11-25 23:21:14,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3286 states to 3286 states and 4993 transitions. [2022-11-25 23:21:14,184 INFO L78 Accepts]: Start accepts. Automaton has 3286 states and 4993 transitions. Word has length 174 [2022-11-25 23:21:14,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:21:14,186 INFO L495 AbstractCegarLoop]: Abstraction has 3286 states and 4993 transitions. [2022-11-25 23:21:14,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-25 23:21:14,187 INFO L276 IsEmpty]: Start isEmpty. Operand 3286 states and 4993 transitions. [2022-11-25 23:21:14,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-11-25 23:21:14,191 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:21:14,191 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:21:14,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 23:21:14,192 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:21:14,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:21:14,193 INFO L85 PathProgramCache]: Analyzing trace with hash -1785935555, now seen corresponding path program 1 times [2022-11-25 23:21:14,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:21:14,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105969107] [2022-11-25 23:21:14,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:21:14,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:21:14,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:21:14,535 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2022-11-25 23:21:14,535 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:21:14,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105969107] [2022-11-25 23:21:14,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105969107] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:21:14,536 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:21:14,536 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:21:14,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334366253] [2022-11-25 23:21:14,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:21:14,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:21:14,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:21:14,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:21:14,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:21:14,538 INFO L87 Difference]: Start difference. First operand 3286 states and 4993 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-25 23:21:17,976 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 23:21:18,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:21:18,100 INFO L93 Difference]: Finished difference Result 3288 states and 4994 transitions. [2022-11-25 23:21:18,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:21:18,101 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 175 [2022-11-25 23:21:18,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:21:18,117 INFO L225 Difference]: With dead ends: 3288 [2022-11-25 23:21:18,118 INFO L226 Difference]: Without dead ends: 3285 [2022-11-25 23:21:18,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:21:18,121 INFO L413 NwaCegarLoop]: 1175 mSDtfsCounter, 1264 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1264 SdHoareTripleChecker+Valid, 1175 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-25 23:21:18,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1264 Valid, 1175 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-11-25 23:21:18,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3285 states. [2022-11-25 23:21:18,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3285 to 3285. [2022-11-25 23:21:18,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3285 states, 2347 states have (on average 1.4669791222837665) internal successors, (3443), 2394 states have internal predecessors, (3443), 776 states have call successors, (776), 162 states have call predecessors, (776), 161 states have return successors, (772), 756 states have call predecessors, (772), 772 states have call successors, (772) [2022-11-25 23:21:18,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3285 states to 3285 states and 4991 transitions. [2022-11-25 23:21:18,330 INFO L78 Accepts]: Start accepts. Automaton has 3285 states and 4991 transitions. Word has length 175 [2022-11-25 23:21:18,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:21:18,330 INFO L495 AbstractCegarLoop]: Abstraction has 3285 states and 4991 transitions. [2022-11-25 23:21:18,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-25 23:21:18,331 INFO L276 IsEmpty]: Start isEmpty. Operand 3285 states and 4991 transitions. [2022-11-25 23:21:18,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-11-25 23:21:18,333 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:21:18,334 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:21:18,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 23:21:18,334 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:21:18,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:21:18,335 INFO L85 PathProgramCache]: Analyzing trace with hash 470286351, now seen corresponding path program 1 times [2022-11-25 23:21:18,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:21:18,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103327268] [2022-11-25 23:21:18,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:21:18,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:21:18,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:21:18,662 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2022-11-25 23:21:18,662 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:21:18,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103327268] [2022-11-25 23:21:18,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103327268] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:21:18,663 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:21:18,663 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:21:18,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248567337] [2022-11-25 23:21:18,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:21:18,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:21:18,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:21:18,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:21:18,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:21:18,665 INFO L87 Difference]: Start difference. First operand 3285 states and 4991 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-25 23:21:20,308 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:21:25,006 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 23:21:25,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:21:25,170 INFO L93 Difference]: Finished difference Result 6493 states and 9877 transitions. [2022-11-25 23:21:25,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:21:25,171 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 176 [2022-11-25 23:21:25,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:21:25,206 INFO L225 Difference]: With dead ends: 6493 [2022-11-25 23:21:25,206 INFO L226 Difference]: Without dead ends: 6484 [2022-11-25 23:21:25,211 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:21:25,212 INFO L413 NwaCegarLoop]: 1365 mSDtfsCounter, 1244 mSDsluCounter, 1128 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1244 SdHoareTripleChecker+Valid, 2493 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-11-25 23:21:25,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1244 Valid, 2493 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 260 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-11-25 23:21:25,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6484 states. [2022-11-25 23:21:25,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6484 to 6480. [2022-11-25 23:21:25,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6480 states, 4646 states have (on average 1.4683598794662074) internal successors, (6822), 4733 states have internal predecessors, (6822), 1520 states have call successors, (1520), 318 states have call predecessors, (1520), 313 states have return successors, (1516), 1480 states have call predecessors, (1516), 1516 states have call successors, (1516) [2022-11-25 23:21:25,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6480 states to 6480 states and 9858 transitions. [2022-11-25 23:21:25,610 INFO L78 Accepts]: Start accepts. Automaton has 6480 states and 9858 transitions. Word has length 176 [2022-11-25 23:21:25,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:21:25,611 INFO L495 AbstractCegarLoop]: Abstraction has 6480 states and 9858 transitions. [2022-11-25 23:21:25,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-25 23:21:25,612 INFO L276 IsEmpty]: Start isEmpty. Operand 6480 states and 9858 transitions. [2022-11-25 23:21:25,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2022-11-25 23:21:25,624 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:21:25,624 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:21:25,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 23:21:25,625 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:21:25,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:21:25,625 INFO L85 PathProgramCache]: Analyzing trace with hash -745577571, now seen corresponding path program 1 times [2022-11-25 23:21:25,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:21:25,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726197969] [2022-11-25 23:21:25,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:21:25,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:21:25,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:21:25,968 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 433 trivial. 0 not checked. [2022-11-25 23:21:25,969 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:21:25,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726197969] [2022-11-25 23:21:25,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726197969] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:21:25,969 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:21:25,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:21:25,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148511754] [2022-11-25 23:21:25,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:21:25,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:21:25,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:21:25,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:21:25,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:21:25,972 INFO L87 Difference]: Start difference. First operand 6480 states and 9858 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-25 23:21:27,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:21:31,788 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 23:21:32,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:21:32,008 INFO L93 Difference]: Finished difference Result 13250 states and 20154 transitions. [2022-11-25 23:21:32,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:21:32,008 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 254 [2022-11-25 23:21:32,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:21:32,043 INFO L225 Difference]: With dead ends: 13250 [2022-11-25 23:21:32,044 INFO L226 Difference]: Without dead ends: 6805 [2022-11-25 23:21:32,071 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:21:32,072 INFO L413 NwaCegarLoop]: 1195 mSDtfsCounter, 126 mSDsluCounter, 1021 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 2216 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-11-25 23:21:32,072 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 2216 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 366 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-11-25 23:21:32,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6805 states. [2022-11-25 23:21:32,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6805 to 6789. [2022-11-25 23:21:32,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6789 states, 4909 states have (on average 1.4699531472805052) internal successors, (7216), 4996 states have internal predecessors, (7216), 1554 states have call successors, (1554), 330 states have call predecessors, (1554), 325 states have return successors, (1550), 1514 states have call predecessors, (1550), 1550 states have call successors, (1550) [2022-11-25 23:21:32,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6789 states to 6789 states and 10320 transitions. [2022-11-25 23:21:32,482 INFO L78 Accepts]: Start accepts. Automaton has 6789 states and 10320 transitions. Word has length 254 [2022-11-25 23:21:32,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:21:32,483 INFO L495 AbstractCegarLoop]: Abstraction has 6789 states and 10320 transitions. [2022-11-25 23:21:32,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-25 23:21:32,483 INFO L276 IsEmpty]: Start isEmpty. Operand 6789 states and 10320 transitions. [2022-11-25 23:21:32,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2022-11-25 23:21:32,494 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:21:32,494 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:21:32,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 23:21:32,495 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:21:32,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:21:32,495 INFO L85 PathProgramCache]: Analyzing trace with hash -1841329232, now seen corresponding path program 1 times [2022-11-25 23:21:32,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:21:32,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426256766] [2022-11-25 23:21:32,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:21:32,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:21:32,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:21:33,106 INFO L134 CoverageAnalysis]: Checked inductivity of 524 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 516 trivial. 0 not checked. [2022-11-25 23:21:33,106 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:21:33,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426256766] [2022-11-25 23:21:33,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426256766] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:21:33,107 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:21:33,107 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:21:33,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368242594] [2022-11-25 23:21:33,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:21:33,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:21:33,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:21:33,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:21:33,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:21:33,110 INFO L87 Difference]: Start difference. First operand 6789 states and 10320 transitions. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-25 23:21:36,527 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:21:40,001 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 23:21:41,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:21:41,402 INFO L93 Difference]: Finished difference Result 18247 states and 28337 transitions. [2022-11-25 23:21:41,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:21:41,403 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 272 [2022-11-25 23:21:41,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:21:41,452 INFO L225 Difference]: With dead ends: 18247 [2022-11-25 23:21:41,452 INFO L226 Difference]: Without dead ends: 11506 [2022-11-25 23:21:41,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:21:41,476 INFO L413 NwaCegarLoop]: 1671 mSDtfsCounter, 881 mSDsluCounter, 2993 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 124 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 987 SdHoareTripleChecker+Valid, 4664 SdHoareTripleChecker+Invalid, 590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-11-25 23:21:41,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [987 Valid, 4664 Invalid, 590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 465 Invalid, 1 Unknown, 0 Unchecked, 7.7s Time] [2022-11-25 23:21:41,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11506 states. [2022-11-25 23:21:41,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11506 to 6805. [2022-11-25 23:21:42,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6805 states, 4925 states have (on average 1.4684263959390862) internal successors, (7232), 5012 states have internal predecessors, (7232), 1554 states have call successors, (1554), 330 states have call predecessors, (1554), 325 states have return successors, (1550), 1514 states have call predecessors, (1550), 1550 states have call successors, (1550) [2022-11-25 23:21:42,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6805 states to 6805 states and 10336 transitions. [2022-11-25 23:21:42,026 INFO L78 Accepts]: Start accepts. Automaton has 6805 states and 10336 transitions. Word has length 272 [2022-11-25 23:21:42,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:21:42,027 INFO L495 AbstractCegarLoop]: Abstraction has 6805 states and 10336 transitions. [2022-11-25 23:21:42,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-25 23:21:42,027 INFO L276 IsEmpty]: Start isEmpty. Operand 6805 states and 10336 transitions. [2022-11-25 23:21:42,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2022-11-25 23:21:42,039 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:21:42,039 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:21:42,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 23:21:42,040 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:21:42,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:21:42,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1010303150, now seen corresponding path program 1 times [2022-11-25 23:21:42,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:21:42,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122207698] [2022-11-25 23:21:42,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:21:42,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:21:42,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:21:42,686 INFO L134 CoverageAnalysis]: Checked inductivity of 524 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 516 trivial. 0 not checked. [2022-11-25 23:21:42,686 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:21:42,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122207698] [2022-11-25 23:21:42,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122207698] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:21:42,687 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:21:42,687 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:21:42,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092349759] [2022-11-25 23:21:42,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:21:42,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:21:42,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:21:42,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:21:42,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:21:42,689 INFO L87 Difference]: Start difference. First operand 6805 states and 10336 transitions. Second operand has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-25 23:21:44,893 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:21:46,061 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:21:47,477 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:21:53,109 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 23:21:54,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:21:54,684 INFO L93 Difference]: Finished difference Result 18230 states and 28314 transitions. [2022-11-25 23:21:54,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 23:21:54,684 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 285 [2022-11-25 23:21:54,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:21:54,732 INFO L225 Difference]: With dead ends: 18230 [2022-11-25 23:21:54,732 INFO L226 Difference]: Without dead ends: 11473 [2022-11-25 23:21:54,752 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:21:54,753 INFO L413 NwaCegarLoop]: 1705 mSDtfsCounter, 867 mSDsluCounter, 2893 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 115 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 941 SdHoareTripleChecker+Valid, 4598 SdHoareTripleChecker+Invalid, 570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2022-11-25 23:21:54,754 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [941 Valid, 4598 Invalid, 570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 454 Invalid, 1 Unknown, 0 Unchecked, 11.3s Time] [2022-11-25 23:21:54,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11473 states. [2022-11-25 23:21:55,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11473 to 6821. [2022-11-25 23:21:55,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6821 states, 4941 states have (on average 1.466909532483303) internal successors, (7248), 5028 states have internal predecessors, (7248), 1554 states have call successors, (1554), 330 states have call predecessors, (1554), 325 states have return successors, (1550), 1514 states have call predecessors, (1550), 1550 states have call successors, (1550) [2022-11-25 23:21:55,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6821 states to 6821 states and 10352 transitions. [2022-11-25 23:21:55,378 INFO L78 Accepts]: Start accepts. Automaton has 6821 states and 10352 transitions. Word has length 285 [2022-11-25 23:21:55,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:21:55,379 INFO L495 AbstractCegarLoop]: Abstraction has 6821 states and 10352 transitions. [2022-11-25 23:21:55,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-25 23:21:55,379 INFO L276 IsEmpty]: Start isEmpty. Operand 6821 states and 10352 transitions. [2022-11-25 23:21:55,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2022-11-25 23:21:55,391 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:21:55,391 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:21:55,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 23:21:55,392 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:21:55,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:21:55,393 INFO L85 PathProgramCache]: Analyzing trace with hash -983803209, now seen corresponding path program 1 times [2022-11-25 23:21:55,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:21:55,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715031205] [2022-11-25 23:21:55,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:21:55,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:21:55,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:21:55,844 INFO L134 CoverageAnalysis]: Checked inductivity of 524 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 516 trivial. 0 not checked. [2022-11-25 23:21:55,844 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:21:55,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715031205] [2022-11-25 23:21:55,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715031205] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:21:55,845 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:21:55,845 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:21:55,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247573223] [2022-11-25 23:21:55,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:21:55,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:21:55,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:21:55,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:21:55,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:21:55,849 INFO L87 Difference]: Start difference. First operand 6821 states and 10352 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-25 23:21:58,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:22:02,004 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 23:22:02,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:22:02,691 INFO L93 Difference]: Finished difference Result 17584 states and 27186 transitions. [2022-11-25 23:22:02,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:22:02,697 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 285 [2022-11-25 23:22:02,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:22:02,738 INFO L225 Difference]: With dead ends: 17584 [2022-11-25 23:22:02,739 INFO L226 Difference]: Without dead ends: 10811 [2022-11-25 23:22:02,761 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:22:02,763 INFO L413 NwaCegarLoop]: 1713 mSDtfsCounter, 548 mSDsluCounter, 1252 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 659 SdHoareTripleChecker+Valid, 2965 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-11-25 23:22:02,764 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [659 Valid, 2965 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 291 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-11-25 23:22:02,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10811 states. [2022-11-25 23:22:03,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10811 to 6973. [2022-11-25 23:22:03,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6973 states, 5061 states have (on average 1.4669037739577158) internal successors, (7424), 5148 states have internal predecessors, (7424), 1586 states have call successors, (1586), 330 states have call predecessors, (1586), 325 states have return successors, (1582), 1546 states have call predecessors, (1582), 1582 states have call successors, (1582) [2022-11-25 23:22:03,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6973 states to 6973 states and 10592 transitions. [2022-11-25 23:22:03,441 INFO L78 Accepts]: Start accepts. Automaton has 6973 states and 10592 transitions. Word has length 285 [2022-11-25 23:22:03,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:22:03,442 INFO L495 AbstractCegarLoop]: Abstraction has 6973 states and 10592 transitions. [2022-11-25 23:22:03,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-25 23:22:03,443 INFO L276 IsEmpty]: Start isEmpty. Operand 6973 states and 10592 transitions. [2022-11-25 23:22:03,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2022-11-25 23:22:03,458 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:22:03,459 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:22:03,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 23:22:03,459 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:22:03,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:22:03,460 INFO L85 PathProgramCache]: Analyzing trace with hash 516164288, now seen corresponding path program 1 times [2022-11-25 23:22:03,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:22:03,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247708701] [2022-11-25 23:22:03,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:22:03,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:22:03,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:22:03,959 INFO L134 CoverageAnalysis]: Checked inductivity of 524 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 516 trivial. 0 not checked. [2022-11-25 23:22:03,959 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:22:03,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247708701] [2022-11-25 23:22:03,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247708701] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:22:03,960 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:22:03,960 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:22:03,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721941969] [2022-11-25 23:22:03,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:22:03,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:22:03,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:22:03,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:22:03,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:22:03,962 INFO L87 Difference]: Start difference. First operand 6973 states and 10592 transitions. Second operand has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-25 23:22:06,734 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:22:10,945 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 23:22:12,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:22:12,302 INFO L93 Difference]: Finished difference Result 19479 states and 30321 transitions. [2022-11-25 23:22:12,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:22:12,302 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 285 [2022-11-25 23:22:12,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:22:12,405 INFO L225 Difference]: With dead ends: 19479 [2022-11-25 23:22:12,405 INFO L226 Difference]: Without dead ends: 12554 [2022-11-25 23:22:12,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:22:12,424 INFO L413 NwaCegarLoop]: 1819 mSDtfsCounter, 1025 mSDsluCounter, 3188 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 103 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1154 SdHoareTripleChecker+Valid, 5007 SdHoareTripleChecker+Invalid, 601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-11-25 23:22:12,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1154 Valid, 5007 Invalid, 601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 496 Invalid, 2 Unknown, 0 Unchecked, 7.6s Time] [2022-11-25 23:22:12,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12554 states. [2022-11-25 23:22:13,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12554 to 6989. [2022-11-25 23:22:13,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6989 states, 5077 states have (on average 1.465432341934213) internal successors, (7440), 5164 states have internal predecessors, (7440), 1586 states have call successors, (1586), 330 states have call predecessors, (1586), 325 states have return successors, (1582), 1546 states have call predecessors, (1582), 1582 states have call successors, (1582) [2022-11-25 23:22:13,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6989 states to 6989 states and 10608 transitions. [2022-11-25 23:22:13,181 INFO L78 Accepts]: Start accepts. Automaton has 6989 states and 10608 transitions. Word has length 285 [2022-11-25 23:22:13,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:22:13,181 INFO L495 AbstractCegarLoop]: Abstraction has 6989 states and 10608 transitions. [2022-11-25 23:22:13,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-25 23:22:13,182 INFO L276 IsEmpty]: Start isEmpty. Operand 6989 states and 10608 transitions. [2022-11-25 23:22:13,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2022-11-25 23:22:13,195 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:22:13,195 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:22:13,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-25 23:22:13,196 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:22:13,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:22:13,197 INFO L85 PathProgramCache]: Analyzing trace with hash -1642832550, now seen corresponding path program 1 times [2022-11-25 23:22:13,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:22:13,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952113475] [2022-11-25 23:22:13,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:22:13,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:22:13,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:22:14,378 INFO L134 CoverageAnalysis]: Checked inductivity of 524 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 516 trivial. 0 not checked. [2022-11-25 23:22:14,378 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:22:14,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952113475] [2022-11-25 23:22:14,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952113475] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:22:14,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [946603566] [2022-11-25 23:22:14,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:22:14,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:22:14,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d38dc5-d612-4eea-957e-f08b56908751/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:22:14,386 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d38dc5-d612-4eea-957e-f08b56908751/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:22:14,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d38dc5-d612-4eea-957e-f08b56908751/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 23:22:15,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:22:15,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 3948 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 23:22:15,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:22:15,947 INFO L134 CoverageAnalysis]: Checked inductivity of 524 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 436 trivial. 0 not checked. [2022-11-25 23:22:15,947 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:22:15,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [946603566] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:22:15,948 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 23:22:15,948 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-25 23:22:15,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20253584] [2022-11-25 23:22:15,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:22:15,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:22:15,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:22:15,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:22:15,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-25 23:22:15,950 INFO L87 Difference]: Start difference. First operand 6989 states and 10608 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 3 states have call successors, (32), 3 states have call predecessors, (32), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-25 23:22:17,614 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:22:22,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:22:29,039 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 23:22:30,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:22:30,972 INFO L93 Difference]: Finished difference Result 13104 states and 19992 transitions. [2022-11-25 23:22:30,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 23:22:30,973 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 3 states have call successors, (32), 3 states have call predecessors, (32), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 286 [2022-11-25 23:22:30,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:22:31,016 INFO L225 Difference]: With dead ends: 13104 [2022-11-25 23:22:31,016 INFO L226 Difference]: Without dead ends: 13096 [2022-11-25 23:22:31,022 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:22:31,023 INFO L413 NwaCegarLoop]: 2481 mSDtfsCounter, 3138 mSDsluCounter, 3526 mSDsCounter, 0 mSdLazyCounter, 2242 mSolverCounterSat, 341 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3187 SdHoareTripleChecker+Valid, 6007 SdHoareTripleChecker+Invalid, 2585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 341 IncrementalHoareTripleChecker+Valid, 2242 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:22:31,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3187 Valid, 6007 Invalid, 2585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [341 Valid, 2242 Invalid, 2 Unknown, 0 Unchecked, 14.1s Time] [2022-11-25 23:22:31,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13096 states. [2022-11-25 23:22:31,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13096 to 12154. [2022-11-25 23:22:32,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12154 states, 8827 states have (on average 1.4670896114195082) internal successors, (12950), 8996 states have internal predecessors, (12950), 2759 states have call successors, (2759), 574 states have call predecessors, (2759), 567 states have return successors, (2755), 2675 states have call predecessors, (2755), 2755 states have call successors, (2755) [2022-11-25 23:22:32,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12154 states to 12154 states and 18464 transitions. [2022-11-25 23:22:32,051 INFO L78 Accepts]: Start accepts. Automaton has 12154 states and 18464 transitions. Word has length 286 [2022-11-25 23:22:32,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:22:32,052 INFO L495 AbstractCegarLoop]: Abstraction has 12154 states and 18464 transitions. [2022-11-25 23:22:32,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 3 states have call successors, (32), 3 states have call predecessors, (32), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-25 23:22:32,052 INFO L276 IsEmpty]: Start isEmpty. Operand 12154 states and 18464 transitions. [2022-11-25 23:22:32,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2022-11-25 23:22:32,068 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:22:32,068 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:22:32,086 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d38dc5-d612-4eea-957e-f08b56908751/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-25 23:22:32,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d38dc5-d612-4eea-957e-f08b56908751/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-25 23:22:32,282 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:22:32,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:22:32,282 INFO L85 PathProgramCache]: Analyzing trace with hash -229840351, now seen corresponding path program 1 times [2022-11-25 23:22:32,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:22:32,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846335513] [2022-11-25 23:22:32,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:22:32,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:22:32,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:22:33,095 INFO L134 CoverageAnalysis]: Checked inductivity of 524 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 516 trivial. 0 not checked. [2022-11-25 23:22:33,095 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:22:33,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846335513] [2022-11-25 23:22:33,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846335513] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:22:33,096 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:22:33,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:22:33,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880442578] [2022-11-25 23:22:33,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:22:33,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:22:33,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:22:33,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:22:33,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:22:33,098 INFO L87 Difference]: Start difference. First operand 12154 states and 18464 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-25 23:22:35,060 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:22:39,796 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 23:22:40,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:22:40,632 INFO L93 Difference]: Finished difference Result 31557 states and 48814 transitions. [2022-11-25 23:22:40,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:22:40,633 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 287 [2022-11-25 23:22:40,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:22:40,690 INFO L225 Difference]: With dead ends: 31557 [2022-11-25 23:22:40,690 INFO L226 Difference]: Without dead ends: 19451 [2022-11-25 23:22:40,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:22:40,728 INFO L413 NwaCegarLoop]: 1531 mSDtfsCounter, 551 mSDsluCounter, 1223 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 663 SdHoareTripleChecker+Valid, 2754 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-11-25 23:22:40,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [663 Valid, 2754 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 276 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2022-11-25 23:22:40,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19451 states. [2022-11-25 23:22:41,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19451 to 12168. [2022-11-25 23:22:41,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12168 states, 8841 states have (on average 1.466349960411718) internal successors, (12964), 9010 states have internal predecessors, (12964), 2759 states have call successors, (2759), 574 states have call predecessors, (2759), 567 states have return successors, (2755), 2675 states have call predecessors, (2755), 2755 states have call successors, (2755) [2022-11-25 23:22:42,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12168 states to 12168 states and 18478 transitions. [2022-11-25 23:22:42,014 INFO L78 Accepts]: Start accepts. Automaton has 12168 states and 18478 transitions. Word has length 287 [2022-11-25 23:22:42,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:22:42,015 INFO L495 AbstractCegarLoop]: Abstraction has 12168 states and 18478 transitions. [2022-11-25 23:22:42,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-25 23:22:42,015 INFO L276 IsEmpty]: Start isEmpty. Operand 12168 states and 18478 transitions. [2022-11-25 23:22:42,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2022-11-25 23:22:42,035 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:22:42,036 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:22:42,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-25 23:22:42,036 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:22:42,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:22:42,037 INFO L85 PathProgramCache]: Analyzing trace with hash 573601561, now seen corresponding path program 1 times [2022-11-25 23:22:42,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:22:42,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410100474] [2022-11-25 23:22:42,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:22:42,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:22:43,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:22:46,897 INFO L134 CoverageAnalysis]: Checked inductivity of 524 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 516 trivial. 0 not checked. [2022-11-25 23:22:46,897 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:22:46,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410100474] [2022-11-25 23:22:46,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410100474] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:22:46,897 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:22:46,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-25 23:22:46,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001131847] [2022-11-25 23:22:46,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:22:46,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 23:22:46,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:22:46,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 23:22:46,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-25 23:22:46,900 INFO L87 Difference]: Start difference. First operand 12168 states and 18478 transitions. Second operand has 12 states, 7 states have (on average 16.714285714285715) internal successors, (117), 9 states have internal predecessors, (117), 4 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (29), 5 states have call predecessors, (29), 4 states have call successors, (29) [2022-11-25 23:22:48,037 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:22:55,279 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:22:59,910 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:23:06,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 23:23:07,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:23:07,834 INFO L93 Difference]: Finished difference Result 30738 states and 47526 transitions. [2022-11-25 23:23:07,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 23:23:07,834 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 7 states have (on average 16.714285714285715) internal successors, (117), 9 states have internal predecessors, (117), 4 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (29), 5 states have call predecessors, (29), 4 states have call successors, (29) Word has length 288 [2022-11-25 23:23:07,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:23:07,981 INFO L225 Difference]: With dead ends: 30738 [2022-11-25 23:23:07,981 INFO L226 Difference]: Without dead ends: 18618 [2022-11-25 23:23:08,013 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:23:08,014 INFO L413 NwaCegarLoop]: 1595 mSDtfsCounter, 873 mSDsluCounter, 15366 mSDsCounter, 0 mSdLazyCounter, 1745 mSolverCounterSat, 149 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 925 SdHoareTripleChecker+Valid, 16961 SdHoareTripleChecker+Invalid, 1895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 149 IncrementalHoareTripleChecker+Valid, 1745 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.4s IncrementalHoareTripleChecker+Time [2022-11-25 23:23:08,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [925 Valid, 16961 Invalid, 1895 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [149 Valid, 1745 Invalid, 1 Unknown, 0 Unchecked, 19.4s Time] [2022-11-25 23:23:08,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18618 states. [2022-11-25 23:23:09,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18618 to 12224. [2022-11-25 23:23:09,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12224 states, 8883 states have (on average 1.4641449960598896) internal successors, (13006), 9052 states have internal predecessors, (13006), 2773 states have call successors, (2773), 574 states have call predecessors, (2773), 567 states have return successors, (2769), 2689 states have call predecessors, (2769), 2769 states have call successors, (2769) [2022-11-25 23:23:09,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12224 states to 12224 states and 18548 transitions. [2022-11-25 23:23:09,422 INFO L78 Accepts]: Start accepts. Automaton has 12224 states and 18548 transitions. Word has length 288 [2022-11-25 23:23:09,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:23:09,422 INFO L495 AbstractCegarLoop]: Abstraction has 12224 states and 18548 transitions. [2022-11-25 23:23:09,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 7 states have (on average 16.714285714285715) internal successors, (117), 9 states have internal predecessors, (117), 4 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (29), 5 states have call predecessors, (29), 4 states have call successors, (29) [2022-11-25 23:23:09,423 INFO L276 IsEmpty]: Start isEmpty. Operand 12224 states and 18548 transitions. [2022-11-25 23:23:09,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2022-11-25 23:23:09,441 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:23:09,442 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:23:09,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-25 23:23:09,442 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:23:09,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:23:09,443 INFO L85 PathProgramCache]: Analyzing trace with hash -199844814, now seen corresponding path program 1 times [2022-11-25 23:23:09,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:23:09,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241960868] [2022-11-25 23:23:09,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:23:09,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:23:09,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:23:11,713 INFO L134 CoverageAnalysis]: Checked inductivity of 524 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 516 trivial. 0 not checked. [2022-11-25 23:23:11,713 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:23:11,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241960868] [2022-11-25 23:23:11,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241960868] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:23:11,713 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:23:11,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:23:11,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501874517] [2022-11-25 23:23:11,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:23:11,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:23:11,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:23:11,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:23:11,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:23:11,716 INFO L87 Difference]: Start difference. First operand 12224 states and 18548 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-25 23:23:13,035 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:23:15,191 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:23:17,522 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:23:22,057 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 23:23:22,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:23:22,544 INFO L93 Difference]: Finished difference Result 31697 states and 48998 transitions. [2022-11-25 23:23:22,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:23:22,545 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29) Word has length 292 [2022-11-25 23:23:22,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:23:22,593 INFO L225 Difference]: With dead ends: 31697 [2022-11-25 23:23:22,594 INFO L226 Difference]: Without dead ends: 19521 [2022-11-25 23:23:22,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:23:22,616 INFO L413 NwaCegarLoop]: 1560 mSDtfsCounter, 556 mSDsluCounter, 4339 mSDsCounter, 0 mSdLazyCounter, 578 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 668 SdHoareTripleChecker+Valid, 5899 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2022-11-25 23:23:22,616 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [668 Valid, 5899 Invalid, 578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 578 Invalid, 0 Unknown, 0 Unchecked, 9.3s Time] [2022-11-25 23:23:22,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19521 states. [2022-11-25 23:23:23,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19521 to 12280. [2022-11-25 23:23:23,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12280 states, 8925 states have (on average 1.4619607843137254) internal successors, (13048), 9094 states have internal predecessors, (13048), 2773 states have call successors, (2773), 574 states have call predecessors, (2773), 581 states have return successors, (2811), 2703 states have call predecessors, (2811), 2769 states have call successors, (2811) [2022-11-25 23:23:23,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12280 states to 12280 states and 18632 transitions. [2022-11-25 23:23:23,979 INFO L78 Accepts]: Start accepts. Automaton has 12280 states and 18632 transitions. Word has length 292 [2022-11-25 23:23:23,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:23:23,980 INFO L495 AbstractCegarLoop]: Abstraction has 12280 states and 18632 transitions. [2022-11-25 23:23:23,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-25 23:23:23,980 INFO L276 IsEmpty]: Start isEmpty. Operand 12280 states and 18632 transitions. [2022-11-25 23:23:23,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2022-11-25 23:23:23,997 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:23:23,997 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:23:23,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-25 23:23:23,998 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:23:23,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:23:23,998 INFO L85 PathProgramCache]: Analyzing trace with hash -259117751, now seen corresponding path program 1 times [2022-11-25 23:23:23,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:23:23,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382770931] [2022-11-25 23:23:23,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:23:23,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:23:24,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:23:27,784 INFO L134 CoverageAnalysis]: Checked inductivity of 524 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 516 trivial. 0 not checked. [2022-11-25 23:23:27,785 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:23:27,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382770931] [2022-11-25 23:23:27,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382770931] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:23:27,785 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:23:27,785 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-25 23:23:27,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873682641] [2022-11-25 23:23:27,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:23:27,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 23:23:27,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:23:27,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 23:23:27,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-25 23:23:27,787 INFO L87 Difference]: Start difference. First operand 12280 states and 18632 transitions. Second operand has 12 states, 7 states have (on average 17.428571428571427) internal successors, (122), 9 states have internal predecessors, (122), 4 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (30), 5 states have call predecessors, (30), 4 states have call successors, (30) [2022-11-25 23:23:29,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:23:30,234 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:23:33,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:23:35,271 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:23:37,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:23:42,642 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:23:50,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:23:50,529 INFO L93 Difference]: Finished difference Result 30962 states and 47834 transitions. [2022-11-25 23:23:50,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 23:23:50,530 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 7 states have (on average 17.428571428571427) internal successors, (122), 9 states have internal predecessors, (122), 4 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (30), 5 states have call predecessors, (30), 4 states have call successors, (30) Word has length 295 [2022-11-25 23:23:50,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:23:50,574 INFO L225 Difference]: With dead ends: 30962 [2022-11-25 23:23:50,574 INFO L226 Difference]: Without dead ends: 18730 [2022-11-25 23:23:50,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:23:50,594 INFO L413 NwaCegarLoop]: 1579 mSDtfsCounter, 892 mSDsluCounter, 15238 mSDsCounter, 0 mSdLazyCounter, 1728 mSolverCounterSat, 149 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 944 SdHoareTripleChecker+Valid, 16817 SdHoareTripleChecker+Invalid, 1878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 149 IncrementalHoareTripleChecker+Valid, 1728 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.8s IncrementalHoareTripleChecker+Time [2022-11-25 23:23:50,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [944 Valid, 16817 Invalid, 1878 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [149 Valid, 1728 Invalid, 1 Unknown, 0 Unchecked, 20.8s Time] [2022-11-25 23:23:50,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18730 states. [2022-11-25 23:23:51,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18730 to 12280. [2022-11-25 23:23:51,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12280 states, 8925 states have (on average 1.4619607843137254) internal successors, (13048), 9094 states have internal predecessors, (13048), 2773 states have call successors, (2773), 574 states have call predecessors, (2773), 581 states have return successors, (2811), 2703 states have call predecessors, (2811), 2769 states have call successors, (2811) [2022-11-25 23:23:51,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12280 states to 12280 states and 18632 transitions. [2022-11-25 23:23:51,876 INFO L78 Accepts]: Start accepts. Automaton has 12280 states and 18632 transitions. Word has length 295 [2022-11-25 23:23:51,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:23:51,877 INFO L495 AbstractCegarLoop]: Abstraction has 12280 states and 18632 transitions. [2022-11-25 23:23:51,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 7 states have (on average 17.428571428571427) internal successors, (122), 9 states have internal predecessors, (122), 4 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (30), 5 states have call predecessors, (30), 4 states have call successors, (30) [2022-11-25 23:23:51,877 INFO L276 IsEmpty]: Start isEmpty. Operand 12280 states and 18632 transitions. [2022-11-25 23:23:51,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2022-11-25 23:23:51,893 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:23:51,893 INFO L195 NwaCegarLoop]: trace histogram [11, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:23:51,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-25 23:23:51,893 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:23:51,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:23:51,894 INFO L85 PathProgramCache]: Analyzing trace with hash 128978666, now seen corresponding path program 1 times [2022-11-25 23:23:51,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:23:51,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026199232] [2022-11-25 23:23:51,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:23:51,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:23:53,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:23:54,542 INFO L134 CoverageAnalysis]: Checked inductivity of 568 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 538 trivial. 0 not checked. [2022-11-25 23:23:54,542 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:23:54,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026199232] [2022-11-25 23:23:54,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026199232] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:23:54,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1733350555] [2022-11-25 23:23:54,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:23:54,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:23:54,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d38dc5-d612-4eea-957e-f08b56908751/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:23:54,551 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d38dc5-d612-4eea-957e-f08b56908751/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:23:54,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d38dc5-d612-4eea-957e-f08b56908751/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 23:23:56,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:23:56,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 4172 conjuncts, 98 conjunts are in the unsatisfiable core [2022-11-25 23:23:56,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:23:56,426 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 21 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 64 [2022-11-25 23:23:56,528 INFO L134 CoverageAnalysis]: Checked inductivity of 568 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 550 trivial. 0 not checked. [2022-11-25 23:23:56,529 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:23:56,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1733350555] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:23:56,529 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 23:23:56,529 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [6] total 13 [2022-11-25 23:23:56,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591173783] [2022-11-25 23:23:56,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:23:56,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 23:23:56,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:23:56,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 23:23:56,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-25 23:23:56,532 INFO L87 Difference]: Start difference. First operand 12280 states and 18632 transitions. Second operand has 9 states, 8 states have (on average 15.75) internal successors, (126), 8 states have internal predecessors, (126), 4 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (33), 4 states have call predecessors, (33), 4 states have call successors, (33) [2022-11-25 23:23:59,008 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:24:15,862 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 23:24:19,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:24:19,196 INFO L93 Difference]: Finished difference Result 45469 states and 71618 transitions. [2022-11-25 23:24:19,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-25 23:24:19,197 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 15.75) internal successors, (126), 8 states have internal predecessors, (126), 4 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (33), 4 states have call predecessors, (33), 4 states have call successors, (33) Word has length 306 [2022-11-25 23:24:19,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:24:19,287 INFO L225 Difference]: With dead ends: 45469 [2022-11-25 23:24:19,287 INFO L226 Difference]: Without dead ends: 33237 [2022-11-25 23:24:19,312 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 302 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2022-11-25 23:24:19,313 INFO L413 NwaCegarLoop]: 2763 mSDtfsCounter, 2170 mSDsluCounter, 12401 mSDsCounter, 0 mSdLazyCounter, 3799 mSolverCounterSat, 548 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2387 SdHoareTripleChecker+Valid, 15164 SdHoareTripleChecker+Invalid, 4348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 548 IncrementalHoareTripleChecker+Valid, 3799 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:24:19,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2387 Valid, 15164 Invalid, 4348 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [548 Valid, 3799 Invalid, 1 Unknown, 0 Unchecked, 18.1s Time] [2022-11-25 23:24:19,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33237 states. [2022-11-25 23:24:20,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33237 to 12294. [2022-11-25 23:24:20,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12294 states, 8939 states have (on average 1.46123727486296) internal successors, (13062), 9108 states have internal predecessors, (13062), 2773 states have call successors, (2773), 574 states have call predecessors, (2773), 581 states have return successors, (2811), 2703 states have call predecessors, (2811), 2769 states have call successors, (2811) [2022-11-25 23:24:20,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12294 states to 12294 states and 18646 transitions. [2022-11-25 23:24:20,832 INFO L78 Accepts]: Start accepts. Automaton has 12294 states and 18646 transitions. Word has length 306 [2022-11-25 23:24:20,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:24:20,833 INFO L495 AbstractCegarLoop]: Abstraction has 12294 states and 18646 transitions. [2022-11-25 23:24:20,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 15.75) internal successors, (126), 8 states have internal predecessors, (126), 4 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (33), 4 states have call predecessors, (33), 4 states have call successors, (33) [2022-11-25 23:24:20,833 INFO L276 IsEmpty]: Start isEmpty. Operand 12294 states and 18646 transitions. [2022-11-25 23:24:20,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2022-11-25 23:24:20,844 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:24:20,844 INFO L195 NwaCegarLoop]: trace histogram [11, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:24:20,855 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d38dc5-d612-4eea-957e-f08b56908751/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-25 23:24:21,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d38dc5-d612-4eea-957e-f08b56908751/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-25 23:24:21,045 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:24:21,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:24:21,045 INFO L85 PathProgramCache]: Analyzing trace with hash 1546990411, now seen corresponding path program 1 times [2022-11-25 23:24:21,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:24:21,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223785049] [2022-11-25 23:24:21,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:24:21,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:24:21,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:24:22,814 INFO L134 CoverageAnalysis]: Checked inductivity of 569 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 539 trivial. 0 not checked. [2022-11-25 23:24:22,814 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:24:22,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223785049] [2022-11-25 23:24:22,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223785049] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:24:22,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2135723157] [2022-11-25 23:24:22,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:24:22,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:24:22,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d38dc5-d612-4eea-957e-f08b56908751/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:24:22,817 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d38dc5-d612-4eea-957e-f08b56908751/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:24:22,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d38dc5-d612-4eea-957e-f08b56908751/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 23:24:24,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:24:24,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 4185 conjuncts, 406 conjunts are in the unsatisfiable core [2022-11-25 23:24:24,774 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:24:25,230 INFO L321 Elim1Store]: treesize reduction 499, result has 19.9 percent of original size [2022-11-25 23:24:25,230 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 70 treesize of output 166 [2022-11-25 23:24:25,424 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-11-25 23:24:25,511 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-25 23:24:25,648 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-11-25 23:24:25,654 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-25 23:24:25,804 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-11-25 23:24:25,804 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 2 case distinctions, treesize of input 21 treesize of output 33 [2022-11-25 23:24:25,839 INFO L321 Elim1Store]: treesize reduction 12, result has 42.9 percent of original size [2022-11-25 23:24:25,839 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 17 treesize of output 23 [2022-11-25 23:24:25,848 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:24:25,947 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:24:25,947 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2022-11-25 23:24:25,955 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-25 23:24:26,039 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-25 23:24:26,148 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-25 23:24:26,155 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-11-25 23:24:26,291 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 23:24:26,291 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 2 case distinctions, treesize of input 21 treesize of output 25 [2022-11-25 23:24:26,338 INFO L321 Elim1Store]: treesize reduction 26, result has 46.9 percent of original size [2022-11-25 23:24:26,339 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 23 treesize of output 40 [2022-11-25 23:24:26,351 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:24:26,474 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:24:26,474 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2022-11-25 23:24:26,481 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-25 23:24:26,542 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-25 23:24:26,591 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-25 23:24:26,596 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 7 treesize of output 6 [2022-11-25 23:24:26,714 INFO L321 Elim1Store]: treesize reduction 26, result has 46.9 percent of original size [2022-11-25 23:24:26,714 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 23 treesize of output 40 [2022-11-25 23:24:26,731 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-25 23:24:26,820 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-11-25 23:24:26,820 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 2 case distinctions, treesize of input 21 treesize of output 33 [2022-11-25 23:24:26,926 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:24:26,926 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2022-11-25 23:24:26,933 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-25 23:24:26,985 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-25 23:24:27,034 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-25 23:24:27,041 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-11-25 23:24:27,163 INFO L321 Elim1Store]: treesize reduction 26, result has 46.9 percent of original size [2022-11-25 23:24:27,163 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 23 treesize of output 40 [2022-11-25 23:24:27,181 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:24:27,225 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-11-25 23:24:27,226 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 2 case distinctions, treesize of input 21 treesize of output 33 [2022-11-25 23:24:27,328 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:24:27,328 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2022-11-25 23:24:27,336 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-25 23:24:27,389 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-25 23:24:27,436 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-25 23:24:27,444 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-11-25 23:24:27,561 INFO L321 Elim1Store]: treesize reduction 26, result has 46.9 percent of original size [2022-11-25 23:24:27,561 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 23 treesize of output 40 [2022-11-25 23:24:27,571 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-25 23:24:27,633 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-11-25 23:24:27,633 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 2 case distinctions, treesize of input 21 treesize of output 33 [2022-11-25 23:24:27,728 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:24:27,729 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2022-11-25 23:24:27,735 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-25 23:24:27,820 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 23:24:28,089 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 7 treesize of output 6 [2022-11-25 23:24:28,098 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 23:24:28,332 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-25 23:24:28,332 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-11-25 23:24:28,390 INFO L321 Elim1Store]: treesize reduction 26, result has 46.9 percent of original size [2022-11-25 23:24:28,391 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 23 treesize of output 40 [2022-11-25 23:24:28,418 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:24:28,680 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:24:28,681 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2022-11-25 23:24:28,698 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:24:28,698 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2022-11-25 23:24:28,708 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-25 23:24:28,790 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 23:24:28,939 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-11-25 23:24:28,948 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 23:24:29,114 INFO L321 Elim1Store]: treesize reduction 24, result has 48.9 percent of original size [2022-11-25 23:24:29,115 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 21 treesize of output 38 [2022-11-25 23:24:29,192 INFO L321 Elim1Store]: treesize reduction 26, result has 46.9 percent of original size [2022-11-25 23:24:29,193 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 23 treesize of output 40 [2022-11-25 23:24:29,214 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:24:29,352 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:24:29,353 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2022-11-25 23:24:29,376 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:24:29,376 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2022-11-25 23:24:29,383 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-25 23:24:29,455 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 23:24:29,694 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-11-25 23:24:29,698 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 23:24:29,948 INFO L321 Elim1Store]: treesize reduction 26, result has 46.9 percent of original size [2022-11-25 23:24:29,949 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 23 treesize of output 40 [2022-11-25 23:24:29,997 INFO L321 Elim1Store]: treesize reduction 24, result has 48.9 percent of original size [2022-11-25 23:24:29,997 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 21 treesize of output 38 [2022-11-25 23:24:30,056 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-25 23:24:30,304 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:24:30,305 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2022-11-25 23:24:30,746 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:24:30,746 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2022-11-25 23:24:31,144 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:24:31,144 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2022-11-25 23:24:31,152 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-25 23:24:31,541 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:24:31,542 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2022-11-25 23:24:31,931 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:24:31,932 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2022-11-25 23:24:32,331 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:24:32,332 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2022-11-25 23:24:32,748 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:24:32,748 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2022-11-25 23:24:32,757 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-25 23:24:33,603 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:24:33,604 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2022-11-25 23:24:33,634 INFO L321 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2022-11-25 23:24:33,634 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 20 treesize of output 30 [2022-11-25 23:24:33,653 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-25 23:24:33,689 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 23:24:33,927 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-11-25 23:24:33,932 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 23:24:34,225 INFO L321 Elim1Store]: treesize reduction 26, result has 46.9 percent of original size [2022-11-25 23:24:34,226 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 23 treesize of output 40 [2022-11-25 23:24:34,295 INFO L321 Elim1Store]: treesize reduction 46, result has 43.9 percent of original size [2022-11-25 23:24:34,295 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 26 treesize of output 54 [2022-11-25 23:24:34,371 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:24:35,260 INFO L321 Elim1Store]: treesize reduction 260, result has 28.0 percent of original size [2022-11-25 23:24:35,261 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 9 case distinctions, treesize of input 35 treesize of output 119 [2022-11-25 23:24:40,226 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:24:40,226 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 62 [2022-11-25 23:24:40,554 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 23:24:40,654 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 23:24:40,704 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 23:24:40,967 INFO L321 Elim1Store]: treesize reduction 12, result has 75.5 percent of original size [2022-11-25 23:24:40,967 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 53 treesize of output 77 [2022-11-25 23:24:41,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:41,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:41,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:41,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:41,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:41,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:41,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:41,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:41,413 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 38 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 80 [2022-11-25 23:24:41,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:41,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:41,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:41,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:41,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:41,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:41,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:41,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:41,446 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 39 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 80 [2022-11-25 23:24:41,457 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-25 23:24:41,458 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 29 [2022-11-25 23:24:43,046 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:24:43,053 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:24:43,054 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 41 [2022-11-25 23:24:43,063 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:24:43,064 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-11-25 23:24:43,229 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:24:43,238 INFO L134 CoverageAnalysis]: Checked inductivity of 569 backedges. 132 proven. 166 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2022-11-25 23:24:43,238 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:24:43,994 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3918 (Array Int Int))) (not (= (mod (select (select (store |c_#memory_int| |c_ULTIMATE.start_context_alloc_~rs~0#1.base| v_ArrVal_3918) |c_ULTIMATE.start_context_alloc_~raid_type#1.base|) (+ |c_ULTIMATE.start_context_alloc_~raid_type#1.offset| 24)) 4294967296) 1))) is different from false [2022-11-25 23:24:44,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2135723157] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:24:44,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [135513759] [2022-11-25 23:24:44,403 INFO L159 IcfgInterpreter]: Started Sifa with 163 locations of interest [2022-11-25 23:24:44,403 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:24:44,408 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:24:44,414 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:24:44,415 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:24:48,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:48,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:48,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:48,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:48,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:48,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:48,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:49,481 INFO L217 Elim1Store]: Index analysis took 1690 ms [2022-11-25 23:28:38,087 WARN L233 SmtUtils]: Spent 3.81m on a formula simplification. DAG size of input: 4684 DAG size of output: 1949 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-25 23:28:38,108 INFO L321 Elim1Store]: treesize reduction 22320, result has 16.3 percent of original size [2022-11-25 23:28:38,112 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 165 select indices, 165 select index equivalence classes, 13544 disjoint index pairs (out of 13530 index pairs), introduced 165 new quantified variables, introduced 170 case distinctions, treesize of input 850 treesize of output 4840 [2022-11-25 23:28:52,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:54,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:54,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:54,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:54,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:54,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:54,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:04,178 INFO L217 Elim1Store]: Index analysis took 20038 ms