./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--scsi--osst.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--scsi--osst.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8 --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2ecffe8a5f60817da30887d6b361935e398ff8703e4fd5b17747e558625c4088 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 17:47:41,115 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 17:47:41,116 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 17:47:41,128 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 17:47:41,128 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 17:47:41,129 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 17:47:41,130 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 17:47:41,131 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 17:47:41,132 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 17:47:41,132 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 17:47:41,133 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 17:47:41,134 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 17:47:41,134 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 17:47:41,135 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 17:47:41,135 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 17:47:41,136 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 17:47:41,137 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 17:47:41,137 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 17:47:41,138 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 17:47:41,139 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 17:47:41,140 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 17:47:41,141 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 17:47:41,142 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 17:47:41,142 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 17:47:41,144 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 17:47:41,144 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 17:47:41,145 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 17:47:41,145 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 17:47:41,145 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 17:47:41,146 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 17:47:41,146 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 17:47:41,147 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 17:47:41,147 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 17:47:41,148 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 17:47:41,148 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 17:47:41,148 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 17:47:41,149 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 17:47:41,149 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 17:47:41,149 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 17:47:41,150 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 17:47:41,150 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 17:47:41,151 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-12-13 17:47:41,163 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 17:47:41,163 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 17:47:41,164 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 17:47:41,164 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 17:47:41,164 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 17:47:41,164 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 17:47:41,165 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 17:47:41,165 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 17:47:41,165 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 17:47:41,165 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 17:47:41,165 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 17:47:41,165 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 17:47:41,166 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 17:47:41,166 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 17:47:41,166 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 17:47:41,166 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 17:47:41,166 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 17:47:41,166 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 17:47:41,166 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 17:47:41,167 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 17:47:41,167 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 17:47:41,167 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 17:47:41,167 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 17:47:41,167 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 17:47:41,167 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 17:47:41,167 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 17:47:41,168 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 17:47:41,168 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 17:47:41,168 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 17:47:41,168 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 17:47:41,168 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 17:47:41,168 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 17:47:41,168 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2ecffe8a5f60817da30887d6b361935e398ff8703e4fd5b17747e558625c4088 [2022-12-13 17:47:41,345 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 17:47:41,363 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 17:47:41,365 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 17:47:41,366 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 17:47:41,366 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 17:47:41,368 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--scsi--osst.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i [2022-12-13 17:47:43,994 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 17:47:44,358 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 17:47:44,358 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--scsi--osst.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i [2022-12-13 17:47:44,383 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/data/ae0c63b76/56a990413fbe4903af780348505ce905/FLAG787ea3350 [2022-12-13 17:47:44,393 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/data/ae0c63b76/56a990413fbe4903af780348505ce905 [2022-12-13 17:47:44,395 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 17:47:44,396 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 17:47:44,397 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 17:47:44,397 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 17:47:44,400 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 17:47:44,401 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:47:44" (1/1) ... [2022-12-13 17:47:44,402 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@728a34c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:47:44, skipping insertion in model container [2022-12-13 17:47:44,402 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:47:44" (1/1) ... [2022-12-13 17:47:44,409 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 17:47:44,559 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 17:47:44,928 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-13 17:47:45,120 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-12-13 17:47:45,150 WARN L623 FunctionHandler]: Unknown extern function alloc_pages_current [2022-12-13 17:47:45,171 WARN L623 FunctionHandler]: Unknown extern function __register_chrdev [2022-12-13 17:47:45,176 WARN L623 FunctionHandler]: Unknown extern function __unregister_chrdev [2022-12-13 17:47:45,288 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-13 17:47:45,288 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-12-13 17:47:45,289 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-12-13 17:47:45,290 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_fmt [2022-12-13 17:47:45,294 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-13 17:47:45,294 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-12-13 17:47:45,416 WARN L623 FunctionHandler]: Unknown extern function scsi_normalize_sense [2022-12-13 17:47:45,417 WARN L623 FunctionHandler]: Unknown extern function scsi_get_sense_info_fld [2022-12-13 17:47:45,419 WARN L623 FunctionHandler]: Unknown extern function scsi_sense_desc_find [2022-12-13 17:47:45,428 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,428 WARN L623 FunctionHandler]: Unknown extern function __scsi_print_sense [2022-12-13 17:47:45,429 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,430 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,430 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,437 WARN L623 FunctionHandler]: Unknown extern function complete [2022-12-13 17:47:45,438 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 17:47:45,438 WARN L623 FunctionHandler]: Unknown extern function blk_rq_unmap_user [2022-12-13 17:47:45,438 WARN L623 FunctionHandler]: Unknown extern function __blk_put_request [2022-12-13 17:47:45,445 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 17:47:45,451 WARN L623 FunctionHandler]: Unknown extern function blk_get_request [2022-12-13 17:47:45,454 WARN L623 FunctionHandler]: Unknown extern function sg_next [2022-12-13 17:47:45,456 WARN L623 FunctionHandler]: Unknown extern function blk_rq_map_user [2022-12-13 17:47:45,457 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 17:47:45,458 WARN L623 FunctionHandler]: Unknown extern function blk_rq_map_kern [2022-12-13 17:47:45,460 WARN L623 FunctionHandler]: Unknown extern function blk_execute_rq_nowait [2022-12-13 17:47:45,461 WARN L623 FunctionHandler]: Unknown extern function blk_put_request [2022-12-13 17:47:45,468 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,470 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,477 WARN L623 FunctionHandler]: Unknown extern function wait_for_completion [2022-12-13 17:47:45,483 WARN L623 FunctionHandler]: Unknown extern function wait_for_completion [2022-12-13 17:47:45,485 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,509 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-13 17:47:45,510 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-13 17:47:45,513 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,517 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,525 WARN L623 FunctionHandler]: Unknown extern function jiffies_to_msecs [2022-12-13 17:47:45,526 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-13 17:47:45,527 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-13 17:47:45,536 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-13 17:47:45,553 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,555 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-13 17:47:45,560 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout_interruptible [2022-12-13 17:47:45,562 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,563 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,582 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,587 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,589 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,591 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,600 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,617 WARN L623 FunctionHandler]: Unknown extern function vmalloc [2022-12-13 17:47:45,618 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,619 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,619 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-13 17:47:45,621 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,621 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-13 17:47:45,623 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-13 17:47:45,624 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,625 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-13 17:47:45,626 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,626 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-13 17:47:45,632 WARN L623 FunctionHandler]: Unknown extern function msecs_to_jiffies [2022-12-13 17:47:45,632 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout_interruptible [2022-12-13 17:47:45,633 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,634 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,634 WARN L623 FunctionHandler]: Unknown extern function msecs_to_jiffies [2022-12-13 17:47:45,634 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout_interruptible [2022-12-13 17:47:45,635 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,637 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,638 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,639 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,640 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,640 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,647 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,648 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,659 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,660 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,661 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,662 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,677 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,682 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,687 WARN L623 FunctionHandler]: Unknown extern function vmalloc [2022-12-13 17:47:45,688 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,690 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,700 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,701 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,702 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-12-13 17:47:45,703 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-12-13 17:47:45,703 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-13 17:47:45,704 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-13 17:47:45,705 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,705 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,706 WARN L623 FunctionHandler]: Unknown extern function vmalloc [2022-12-13 17:47:45,706 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,709 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,709 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,709 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,710 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,710 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,710 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,711 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,711 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,711 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,712 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,712 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,713 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,713 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,713 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,714 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,720 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,734 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,735 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,736 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,737 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,738 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,739 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,740 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,745 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,747 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,749 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,751 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,760 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,776 WARN L623 FunctionHandler]: Unknown extern function scsi_ioctl [2022-12-13 17:47:45,784 WARN L623 FunctionHandler]: Unknown extern function scsi_block_when_processing_errors [2022-12-13 17:47:45,785 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,786 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,788 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,788 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,789 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,799 WARN L623 FunctionHandler]: Unknown extern function scsi_block_when_processing_errors [2022-12-13 17:47:45,800 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,802 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,808 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,809 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,809 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,809 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,816 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,816 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,817 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,817 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,817 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,818 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,818 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,819 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,819 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,819 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,820 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,820 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,821 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,828 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,829 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,838 WARN L623 FunctionHandler]: Unknown extern function _raw_write_lock [2022-12-13 17:47:45,839 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-13 17:47:45,839 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-13 17:47:45,839 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-13 17:47:45,840 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-13 17:47:45,840 WARN L623 FunctionHandler]: Unknown extern function scsi_device_get [2022-12-13 17:47:45,840 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-13 17:47:45,840 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-13 17:47:45,841 WARN L623 FunctionHandler]: Unknown extern function scsi_block_when_processing_errors [2022-12-13 17:47:45,841 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,842 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,847 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,850 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,852 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,852 WARN L623 FunctionHandler]: Unknown extern function scsi_device_put [2022-12-13 17:47:45,863 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,863 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,864 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,864 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,864 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,864 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,869 WARN L623 FunctionHandler]: Unknown extern function _raw_write_lock [2022-12-13 17:47:45,869 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-13 17:47:45,869 WARN L623 FunctionHandler]: Unknown extern function scsi_device_put [2022-12-13 17:47:45,874 WARN L623 FunctionHandler]: Unknown extern function scsi_block_when_processing_errors [2022-12-13 17:47:45,875 WARN L623 FunctionHandler]: Unknown extern function capable [2022-12-13 17:47:45,875 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,883 WARN L623 FunctionHandler]: Unknown extern function scsi_ioctl [2022-12-13 17:47:45,891 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,892 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,893 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,893 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,894 WARN L623 FunctionHandler]: Unknown extern function __free_pages [2022-12-13 17:47:45,896 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,897 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,897 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,898 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,899 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,900 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,902 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,903 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,914 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-12-13 17:47:45,915 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-12-13 17:47:45,915 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-12-13 17:47:45,924 WARN L623 FunctionHandler]: Unknown extern function driver_create_file [2022-12-13 17:47:45,928 WARN L623 FunctionHandler]: Unknown extern function driver_remove_file [2022-12-13 17:47:45,932 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-12-13 17:47:45,937 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-12-13 17:47:45,941 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-12-13 17:47:45,946 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-12-13 17:47:45,950 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-12-13 17:47:45,954 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-12-13 17:47:45,959 WARN L623 FunctionHandler]: Unknown extern function __class_create [2022-12-13 17:47:45,959 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,963 WARN L623 FunctionHandler]: Unknown extern function device_destroy [2022-12-13 17:47:45,967 WARN L623 FunctionHandler]: Unknown extern function device_create [2022-12-13 17:47:45,967 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,968 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-12-13 17:47:45,968 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-12-13 17:47:45,968 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-12-13 17:47:45,968 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-12-13 17:47:45,969 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-12-13 17:47:45,969 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-12-13 17:47:45,972 WARN L623 FunctionHandler]: Unknown extern function class_destroy [2022-12-13 17:47:45,974 WARN L623 FunctionHandler]: Unknown extern function alloc_disk [2022-12-13 17:47:45,974 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,974 WARN L623 FunctionHandler]: Unknown extern function _raw_write_lock [2022-12-13 17:47:45,974 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-13 17:47:45,975 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,975 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-13 17:47:45,975 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,976 WARN L623 FunctionHandler]: Unknown extern function panic [2022-12-13 17:47:45,976 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-13 17:47:45,976 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,977 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-13 17:47:45,977 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,977 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 17:47:45,977 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-13 17:47:45,978 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-12-13 17:47:45,979 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-12-13 17:47:45,980 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-13 17:47:45,981 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-13 17:47:45,981 WARN L623 FunctionHandler]: Unknown extern function dev_printk [2022-12-13 17:47:45,982 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 17:47:45,982 WARN L623 FunctionHandler]: Unknown extern function put_disk [2022-12-13 17:47:45,983 WARN L623 FunctionHandler]: Unknown extern function _raw_write_lock [2022-12-13 17:47:45,983 WARN L623 FunctionHandler]: Unknown extern function put_disk [2022-12-13 17:47:45,984 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-13 17:47:45,984 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-13 17:47:45,984 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 17:47:45,984 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 17:47:45,984 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-13 17:47:45,988 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,989 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:45,989 WARN L623 FunctionHandler]: Unknown extern function scsi_register_driver [2022-12-13 17:47:45,990 WARN L623 FunctionHandler]: Unknown extern function driver_unregister [2022-12-13 17:47:45,994 WARN L623 FunctionHandler]: Unknown extern function driver_unregister [2022-12-13 17:47:45,994 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-13 17:47:45,995 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 17:47:45,995 WARN L623 FunctionHandler]: Unknown extern function put_disk [2022-12-13 17:47:45,995 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 17:47:45,995 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 17:47:45,995 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,028 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-12-13 17:47:46,028 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-12-13 17:47:46,028 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value_probe [2022-12-13 17:47:46,029 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-12-13 17:47:46,029 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-12-13 17:47:46,029 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-12-13 17:47:46,029 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-12-13 17:47:46,030 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-12-13 17:47:46,030 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-12-13 17:47:46,030 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-12-13 17:47:46,031 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-12-13 17:47:46,031 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-12-13 17:47:46,031 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-12-13 17:47:46,031 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-12-13 17:47:46,032 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-12-13 17:47:46,032 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-13 17:47:46,032 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 17:47:46,033 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-13 17:47:46,033 WARN L623 FunctionHandler]: Unknown extern function mutex_trylock [2022-12-13 17:47:46,033 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 17:47:46,034 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_interruptible [2022-12-13 17:47:46,034 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 17:47:46,034 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_interruptible [2022-12-13 17:47:46,034 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 17:47:46,035 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-13 17:47:46,035 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 17:47:46,035 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-13 17:47:46,035 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_interruptible [2022-12-13 17:47:46,035 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 17:47:46,036 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 17:47:46,036 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 17:47:46,036 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 17:47:46,036 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 17:47:46,040 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_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--scsi--osst.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i[331724,331737] [2022-12-13 17:47:46,134 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:47:46,149 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 17:47:46,199 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-13 17:47:46,201 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-12-13 17:47:46,202 WARN L623 FunctionHandler]: Unknown extern function alloc_pages_current [2022-12-13 17:47:46,203 WARN L623 FunctionHandler]: Unknown extern function __register_chrdev [2022-12-13 17:47:46,203 WARN L623 FunctionHandler]: Unknown extern function __unregister_chrdev [2022-12-13 17:47:46,205 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-13 17:47:46,206 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-12-13 17:47:46,206 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-12-13 17:47:46,206 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_fmt [2022-12-13 17:47:46,207 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-13 17:47:46,207 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-12-13 17:47:46,210 WARN L623 FunctionHandler]: Unknown extern function scsi_normalize_sense [2022-12-13 17:47:46,211 WARN L623 FunctionHandler]: Unknown extern function scsi_get_sense_info_fld [2022-12-13 17:47:46,211 WARN L623 FunctionHandler]: Unknown extern function scsi_sense_desc_find [2022-12-13 17:47:46,213 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,213 WARN L623 FunctionHandler]: Unknown extern function __scsi_print_sense [2022-12-13 17:47:46,213 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,214 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,214 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,215 WARN L623 FunctionHandler]: Unknown extern function complete [2022-12-13 17:47:46,215 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 17:47:46,215 WARN L623 FunctionHandler]: Unknown extern function blk_rq_unmap_user [2022-12-13 17:47:46,216 WARN L623 FunctionHandler]: Unknown extern function __blk_put_request [2022-12-13 17:47:46,218 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 17:47:46,218 WARN L623 FunctionHandler]: Unknown extern function blk_get_request [2022-12-13 17:47:46,219 WARN L623 FunctionHandler]: Unknown extern function sg_next [2022-12-13 17:47:46,219 WARN L623 FunctionHandler]: Unknown extern function blk_rq_map_user [2022-12-13 17:47:46,221 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 17:47:46,221 WARN L623 FunctionHandler]: Unknown extern function blk_rq_map_kern [2022-12-13 17:47:46,223 WARN L623 FunctionHandler]: Unknown extern function blk_execute_rq_nowait [2022-12-13 17:47:46,226 WARN L623 FunctionHandler]: Unknown extern function blk_put_request [2022-12-13 17:47:46,227 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,227 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,231 WARN L623 FunctionHandler]: Unknown extern function wait_for_completion [2022-12-13 17:47:46,231 WARN L623 FunctionHandler]: Unknown extern function wait_for_completion [2022-12-13 17:47:46,236 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,241 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-13 17:47:46,241 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-13 17:47:46,242 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,243 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,245 WARN L623 FunctionHandler]: Unknown extern function jiffies_to_msecs [2022-12-13 17:47:46,245 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-13 17:47:46,245 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-13 17:47:46,247 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-13 17:47:46,250 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,251 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-13 17:47:46,252 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout_interruptible [2022-12-13 17:47:46,253 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,253 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,255 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,256 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,257 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,258 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,274 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,279 WARN L623 FunctionHandler]: Unknown extern function vmalloc [2022-12-13 17:47:46,279 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,280 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,280 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-13 17:47:46,281 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,281 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-13 17:47:46,283 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-13 17:47:46,283 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,283 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-13 17:47:46,284 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,285 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-13 17:47:46,286 WARN L623 FunctionHandler]: Unknown extern function msecs_to_jiffies [2022-12-13 17:47:46,286 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout_interruptible [2022-12-13 17:47:46,287 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,287 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,287 WARN L623 FunctionHandler]: Unknown extern function msecs_to_jiffies [2022-12-13 17:47:46,287 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout_interruptible [2022-12-13 17:47:46,288 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,289 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,290 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,290 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,291 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,291 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,293 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,293 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,297 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,297 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,298 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,299 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,302 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,302 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,303 WARN L623 FunctionHandler]: Unknown extern function vmalloc [2022-12-13 17:47:46,304 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,306 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,308 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,308 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,309 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-12-13 17:47:46,310 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-12-13 17:47:46,310 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-13 17:47:46,311 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-13 17:47:46,311 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,312 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,312 WARN L623 FunctionHandler]: Unknown extern function vmalloc [2022-12-13 17:47:46,313 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,314 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,315 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,315 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,315 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,315 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,315 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,316 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,316 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,316 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,316 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,317 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,317 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,317 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,317 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,318 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,320 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,323 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,323 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,324 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,325 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,326 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,326 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,327 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,328 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,330 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,331 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,333 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,338 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,342 WARN L623 FunctionHandler]: Unknown extern function scsi_ioctl [2022-12-13 17:47:46,344 WARN L623 FunctionHandler]: Unknown extern function scsi_block_when_processing_errors [2022-12-13 17:47:46,344 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,345 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,346 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,347 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,347 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,352 WARN L623 FunctionHandler]: Unknown extern function scsi_block_when_processing_errors [2022-12-13 17:47:46,354 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,355 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,357 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,358 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,358 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,358 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,361 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,361 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,362 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,362 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,362 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,363 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,363 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,363 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,364 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,364 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,364 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,365 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,365 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,371 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,372 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,377 WARN L623 FunctionHandler]: Unknown extern function _raw_write_lock [2022-12-13 17:47:46,377 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-13 17:47:46,377 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-13 17:47:46,378 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-13 17:47:46,378 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-13 17:47:46,378 WARN L623 FunctionHandler]: Unknown extern function scsi_device_get [2022-12-13 17:47:46,378 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-13 17:47:46,378 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-13 17:47:46,379 WARN L623 FunctionHandler]: Unknown extern function scsi_block_when_processing_errors [2022-12-13 17:47:46,379 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,380 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,384 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,387 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,388 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,389 WARN L623 FunctionHandler]: Unknown extern function scsi_device_put [2022-12-13 17:47:46,392 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,392 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,393 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,393 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,393 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,393 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,394 WARN L623 FunctionHandler]: Unknown extern function _raw_write_lock [2022-12-13 17:47:46,394 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-13 17:47:46,394 WARN L623 FunctionHandler]: Unknown extern function scsi_device_put [2022-12-13 17:47:46,395 WARN L623 FunctionHandler]: Unknown extern function scsi_block_when_processing_errors [2022-12-13 17:47:46,396 WARN L623 FunctionHandler]: Unknown extern function capable [2022-12-13 17:47:46,396 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,403 WARN L623 FunctionHandler]: Unknown extern function scsi_ioctl [2022-12-13 17:47:46,406 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,406 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,407 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,408 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,409 WARN L623 FunctionHandler]: Unknown extern function __free_pages [2022-12-13 17:47:46,409 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,410 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,421 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,423 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,423 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,424 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,426 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,427 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,431 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-12-13 17:47:46,431 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-12-13 17:47:46,431 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-12-13 17:47:46,433 WARN L623 FunctionHandler]: Unknown extern function driver_create_file [2022-12-13 17:47:46,433 WARN L623 FunctionHandler]: Unknown extern function driver_remove_file [2022-12-13 17:47:46,433 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-12-13 17:47:46,434 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-12-13 17:47:46,436 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-12-13 17:47:46,437 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-12-13 17:47:46,438 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-12-13 17:47:46,439 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-12-13 17:47:46,440 WARN L623 FunctionHandler]: Unknown extern function __class_create [2022-12-13 17:47:46,440 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,440 WARN L623 FunctionHandler]: Unknown extern function device_destroy [2022-12-13 17:47:46,441 WARN L623 FunctionHandler]: Unknown extern function device_create [2022-12-13 17:47:46,441 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,441 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-12-13 17:47:46,441 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-12-13 17:47:46,442 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-12-13 17:47:46,442 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-12-13 17:47:46,442 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-12-13 17:47:46,442 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-12-13 17:47:46,443 WARN L623 FunctionHandler]: Unknown extern function class_destroy [2022-12-13 17:47:46,443 WARN L623 FunctionHandler]: Unknown extern function alloc_disk [2022-12-13 17:47:46,444 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,444 WARN L623 FunctionHandler]: Unknown extern function _raw_write_lock [2022-12-13 17:47:46,444 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-13 17:47:46,444 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,445 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-13 17:47:46,445 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,445 WARN L623 FunctionHandler]: Unknown extern function panic [2022-12-13 17:47:46,446 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-13 17:47:46,446 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,446 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-13 17:47:46,447 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,447 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 17:47:46,447 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-13 17:47:46,448 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-12-13 17:47:46,448 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-12-13 17:47:46,450 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-13 17:47:46,450 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-13 17:47:46,451 WARN L623 FunctionHandler]: Unknown extern function dev_printk [2022-12-13 17:47:46,451 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 17:47:46,452 WARN L623 FunctionHandler]: Unknown extern function put_disk [2022-12-13 17:47:46,452 WARN L623 FunctionHandler]: Unknown extern function _raw_write_lock [2022-12-13 17:47:46,453 WARN L623 FunctionHandler]: Unknown extern function put_disk [2022-12-13 17:47:46,453 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-13 17:47:46,453 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-13 17:47:46,454 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 17:47:46,454 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 17:47:46,454 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-13 17:47:46,454 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,455 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,455 WARN L623 FunctionHandler]: Unknown extern function scsi_register_driver [2022-12-13 17:47:46,456 WARN L623 FunctionHandler]: Unknown extern function driver_unregister [2022-12-13 17:47:46,456 WARN L623 FunctionHandler]: Unknown extern function driver_unregister [2022-12-13 17:47:46,457 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-13 17:47:46,457 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 17:47:46,457 WARN L623 FunctionHandler]: Unknown extern function put_disk [2022-12-13 17:47:46,457 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 17:47:46,457 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 17:47:46,458 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:47:46,458 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-12-13 17:47:46,459 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-12-13 17:47:46,459 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value_probe [2022-12-13 17:47:46,459 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-12-13 17:47:46,459 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-12-13 17:47:46,459 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-12-13 17:47:46,460 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-12-13 17:47:46,460 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-12-13 17:47:46,460 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-12-13 17:47:46,460 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-12-13 17:47:46,461 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-12-13 17:47:46,461 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-12-13 17:47:46,461 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-12-13 17:47:46,461 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-12-13 17:47:46,461 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-12-13 17:47:46,462 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-13 17:47:46,462 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 17:47:46,462 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-13 17:47:46,462 WARN L623 FunctionHandler]: Unknown extern function mutex_trylock [2022-12-13 17:47:46,463 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 17:47:46,463 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_interruptible [2022-12-13 17:47:46,463 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 17:47:46,463 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_interruptible [2022-12-13 17:47:46,463 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 17:47:46,464 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-13 17:47:46,464 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 17:47:46,464 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-13 17:47:46,464 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_interruptible [2022-12-13 17:47:46,464 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 17:47:46,465 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 17:47:46,465 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 17:47:46,465 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 17:47:46,465 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 17:47:46,465 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_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--scsi--osst.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i[331724,331737] [2022-12-13 17:47:46,474 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:47:46,521 INFO L208 MainTranslator]: Completed translation [2022-12-13 17:47:46,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:47:46 WrapperNode [2022-12-13 17:47:46,521 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 17:47:46,522 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 17:47:46,522 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 17:47:46,522 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 17:47:46,527 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:47:46" (1/1) ... [2022-12-13 17:47:46,579 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:47:46" (1/1) ... [2022-12-13 17:47:46,739 INFO L138 Inliner]: procedures = 273, calls = 4082, calls flagged for inlining = 105, calls inlined = 96, statements flattened = 8941 [2022-12-13 17:47:46,739 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 17:47:46,740 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 17:47:46,740 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 17:47:46,740 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 17:47:46,747 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:47:46" (1/1) ... [2022-12-13 17:47:46,748 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:47:46" (1/1) ... [2022-12-13 17:47:46,773 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:47:46" (1/1) ... [2022-12-13 17:47:46,774 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:47:46" (1/1) ... [2022-12-13 17:47:46,921 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:47:46" (1/1) ... [2022-12-13 17:47:46,946 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:47:46" (1/1) ... [2022-12-13 17:47:46,966 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:47:46" (1/1) ... [2022-12-13 17:47:46,981 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:47:46" (1/1) ... [2022-12-13 17:47:47,026 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 17:47:47,026 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 17:47:47,027 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 17:47:47,027 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 17:47:47,027 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:47:46" (1/1) ... [2022-12-13 17:47:47,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 17:47:47,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:47:47,053 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 17:47:47,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 17:47:47,086 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-12-13 17:47:47,086 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-12-13 17:47:47,086 INFO L130 BoogieDeclarations]: Found specification of procedure osst_log_options [2022-12-13 17:47:47,086 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_log_options [2022-12-13 17:47:47,086 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-12-13 17:47:47,086 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-12-13 17:47:47,086 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-12-13 17:47:47,086 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-12-13 17:47:47,086 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-12-13 17:47:47,086 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-12-13 17:47:47,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-13 17:47:47,086 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_behind_check [2022-12-13 17:47:47,087 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_behind_check [2022-12-13 17:47:47,087 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-12-13 17:47:47,087 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-12-13 17:47:47,087 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_block_when_processing_errors [2022-12-13 17:47:47,087 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_block_when_processing_errors [2022-12-13 17:47:47,087 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-12-13 17:47:47,087 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-12-13 17:47:47,087 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_unlock [2022-12-13 17:47:47,087 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_unlock [2022-12-13 17:47:47,087 INFO L130 BoogieDeclarations]: Found specification of procedure osst_release_request [2022-12-13 17:47:47,087 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_release_request [2022-12-13 17:47:47,087 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-13 17:47:47,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-13 17:47:47,087 INFO L130 BoogieDeclarations]: Found specification of procedure osst_set_frame_position [2022-12-13 17:47:47,087 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_set_frame_position [2022-12-13 17:47:47,088 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_header [2022-12-13 17:47:47,088 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_header [2022-12-13 17:47:47,088 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_osst_tape [2022-12-13 17:47:47,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_osst_tape [2022-12-13 17:47:47,088 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock_of_osst_tape [2022-12-13 17:47:47,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock_of_osst_tape [2022-12-13 17:47:47,088 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-12-13 17:47:47,088 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-12-13 17:47:47,088 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-12-13 17:47:47,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-12-13 17:47:47,088 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2022-12-13 17:47:47,088 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2022-12-13 17:47:47,088 INFO L130 BoogieDeclarations]: Found specification of procedure osst_read_frame [2022-12-13 17:47:47,088 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_read_frame [2022-12-13 17:47:47,088 INFO L130 BoogieDeclarations]: Found specification of procedure tape_name [2022-12-13 17:47:47,089 INFO L138 BoogieDeclarations]: Found implementation of procedure tape_name [2022-12-13 17:47:47,089 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2022-12-13 17:47:47,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2022-12-13 17:47:47,089 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_device_put [2022-12-13 17:47:47,089 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_device_put [2022-12-13 17:47:47,089 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-13 17:47:47,089 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-13 17:47:47,089 INFO L130 BoogieDeclarations]: Found specification of procedure osst_flush_write_buffer [2022-12-13 17:47:47,089 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_flush_write_buffer [2022-12-13 17:47:47,089 INFO L130 BoogieDeclarations]: Found specification of procedure osst_initiate_read [2022-12-13 17:47:47,089 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_initiate_read [2022-12-13 17:47:47,089 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-12-13 17:47:47,089 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-12-13 17:47:47,114 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_ioctl [2022-12-13 17:47:47,114 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_ioctl [2022-12-13 17:47:47,114 INFO L130 BoogieDeclarations]: Found specification of procedure osst_seek_logical_blk [2022-12-13 17:47:47,114 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_seek_logical_blk [2022-12-13 17:47:47,114 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_osst_int_mutex [2022-12-13 17:47:47,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_osst_int_mutex [2022-12-13 17:47:47,114 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_trailer [2022-12-13 17:47:47,114 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_trailer [2022-12-13 17:47:47,114 INFO L130 BoogieDeclarations]: Found specification of procedure osst_flush_drive_buffer [2022-12-13 17:47:47,115 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_flush_drive_buffer [2022-12-13 17:47:47,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 17:47:47,115 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_osst_int_mutex [2022-12-13 17:47:47,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_osst_int_mutex [2022-12-13 17:47:47,115 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-12-13 17:47:47,115 INFO L130 BoogieDeclarations]: Found specification of procedure osst_int_ioctl [2022-12-13 17:47:47,115 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_int_ioctl [2022-12-13 17:47:47,115 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2022-12-13 17:47:47,115 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2022-12-13 17:47:47,115 INFO L130 BoogieDeclarations]: Found specification of procedure do_door_lock [2022-12-13 17:47:47,115 INFO L138 BoogieDeclarations]: Found implementation of procedure do_door_lock [2022-12-13 17:47:47,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-13 17:47:47,115 INFO L130 BoogieDeclarations]: Found specification of procedure osst_copy_to_buffer [2022-12-13 17:47:47,115 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_copy_to_buffer [2022-12-13 17:47:47,116 INFO L130 BoogieDeclarations]: Found specification of procedure __osst_analyze_headers [2022-12-13 17:47:47,116 INFO L138 BoogieDeclarations]: Found implementation of procedure __osst_analyze_headers [2022-12-13 17:47:47,116 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2022-12-13 17:47:47,116 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2022-12-13 17:47:47,116 INFO L130 BoogieDeclarations]: Found specification of procedure osst_get_logical_frame [2022-12-13 17:47:47,116 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_get_logical_frame [2022-12-13 17:47:47,116 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2022-12-13 17:47:47,116 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2022-12-13 17:47:47,116 INFO L130 BoogieDeclarations]: Found specification of procedure driver_unregister [2022-12-13 17:47:47,116 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_unregister [2022-12-13 17:47:47,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 17:47:47,116 INFO L130 BoogieDeclarations]: Found specification of procedure osst_position_tape_and_confirm [2022-12-13 17:47:47,116 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_position_tape_and_confirm [2022-12-13 17:47:47,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-13 17:47:47,116 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-12-13 17:47:47,116 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-12-13 17:47:47,117 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-12-13 17:47:47,117 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-12-13 17:47:47,117 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-12-13 17:47:47,117 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-12-13 17:47:47,117 INFO L130 BoogieDeclarations]: Found specification of procedure osst_verify_frame [2022-12-13 17:47:47,117 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_verify_frame [2022-12-13 17:47:47,117 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-12-13 17:47:47,117 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-12-13 17:47:47,117 INFO L130 BoogieDeclarations]: Found specification of procedure osst_wait_ready [2022-12-13 17:47:47,117 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_wait_ready [2022-12-13 17:47:47,117 INFO L130 BoogieDeclarations]: Found specification of procedure osst_reset_header [2022-12-13 17:47:47,117 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_reset_header [2022-12-13 17:47:47,117 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2022-12-13 17:47:47,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2022-12-13 17:47:47,118 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-12-13 17:47:47,118 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-12-13 17:47:47,118 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-12-13 17:47:47,118 INFO L130 BoogieDeclarations]: Found specification of procedure osst_do_scsi [2022-12-13 17:47:47,118 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_do_scsi [2022-12-13 17:47:47,118 INFO L130 BoogieDeclarations]: Found specification of procedure sg_page [2022-12-13 17:47:47,118 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_page [2022-12-13 17:47:47,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-13 17:47:47,118 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev [2022-12-13 17:47:47,118 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev [2022-12-13 17:47:47,118 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 17:47:47,118 INFO L130 BoogieDeclarations]: Found specification of procedure osst_chk_result [2022-12-13 17:47:47,118 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_chk_result [2022-12-13 17:47:47,119 INFO L130 BoogieDeclarations]: Found specification of procedure osst_sysfs_add [2022-12-13 17:47:47,119 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_sysfs_add [2022-12-13 17:47:47,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-12-13 17:47:47,119 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-12-13 17:47:47,119 INFO L130 BoogieDeclarations]: Found specification of procedure osst_space_over_filemarks_backward [2022-12-13 17:47:47,119 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_space_over_filemarks_backward [2022-12-13 17:47:47,119 INFO L130 BoogieDeclarations]: Found specification of procedure osst_read_back_buffer_and_rewrite [2022-12-13 17:47:47,119 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_read_back_buffer_and_rewrite [2022-12-13 17:47:47,119 INFO L130 BoogieDeclarations]: Found specification of procedure cross_eof [2022-12-13 17:47:47,119 INFO L138 BoogieDeclarations]: Found implementation of procedure cross_eof [2022-12-13 17:47:47,119 INFO L130 BoogieDeclarations]: Found specification of procedure osst_sysfs_cleanup [2022-12-13 17:47:47,119 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_sysfs_cleanup [2022-12-13 17:47:47,119 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-12-13 17:47:47,119 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-12-13 17:47:47,119 INFO L130 BoogieDeclarations]: Found specification of procedure append_to_buffer [2022-12-13 17:47:47,120 INFO L138 BoogieDeclarations]: Found implementation of procedure append_to_buffer [2022-12-13 17:47:47,120 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-12-13 17:47:47,120 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-12-13 17:47:47,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 17:47:47,120 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-12-13 17:47:47,120 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-12-13 17:47:47,120 INFO L130 BoogieDeclarations]: Found specification of procedure osst_reposition_and_retry [2022-12-13 17:47:47,120 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_reposition_and_retry [2022-12-13 17:47:47,120 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_filemark [2022-12-13 17:47:47,120 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_filemark [2022-12-13 17:47:47,120 INFO L130 BoogieDeclarations]: Found specification of procedure osst_sysfs_destroy [2022-12-13 17:47:47,120 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_sysfs_destroy [2022-12-13 17:47:47,120 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-12-13 17:47:47,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-12-13 17:47:47,120 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_interruptible [2022-12-13 17:47:47,121 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_interruptible [2022-12-13 17:47:47,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 17:47:47,121 INFO L130 BoogieDeclarations]: Found specification of procedure vmalloc [2022-12-13 17:47:47,121 INFO L138 BoogieDeclarations]: Found implementation of procedure vmalloc [2022-12-13 17:47:47,121 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_lock [2022-12-13 17:47:47,121 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_lock [2022-12-13 17:47:47,121 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-12-13 17:47:47,121 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-12-13 17:47:47,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 17:47:47,121 INFO L130 BoogieDeclarations]: Found specification of procedure __osst_write_header [2022-12-13 17:47:47,121 INFO L138 BoogieDeclarations]: Found implementation of procedure __osst_write_header [2022-12-13 17:47:47,121 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_frame [2022-12-13 17:47:47,121 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_frame [2022-12-13 17:47:47,121 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2022-12-13 17:47:47,121 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2022-12-13 17:47:47,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-13 17:47:47,122 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-12-13 17:47:47,122 INFO L130 BoogieDeclarations]: Found specification of procedure osst_get_frame_position [2022-12-13 17:47:47,122 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_get_frame_position [2022-12-13 17:47:47,122 INFO L130 BoogieDeclarations]: Found specification of procedure osst_flush_buffer [2022-12-13 17:47:47,122 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_flush_buffer [2022-12-13 17:47:47,122 INFO L130 BoogieDeclarations]: Found specification of procedure osst_copy_from_buffer [2022-12-13 17:47:47,122 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_copy_from_buffer [2022-12-13 17:47:47,122 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-12-13 17:47:47,122 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-12-13 17:47:47,122 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2022-12-13 17:47:47,122 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2022-12-13 17:47:47,122 INFO L130 BoogieDeclarations]: Found specification of procedure normalize_buffer [2022-12-13 17:47:47,122 INFO L138 BoogieDeclarations]: Found implementation of procedure normalize_buffer [2022-12-13 17:47:47,122 INFO L130 BoogieDeclarations]: Found specification of procedure osst_init_aux [2022-12-13 17:47:47,123 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_init_aux [2022-12-13 17:47:47,123 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_error_recovery [2022-12-13 17:47:47,123 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_error_recovery [2022-12-13 17:47:47,123 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_eod [2022-12-13 17:47:47,123 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_eod [2022-12-13 17:47:47,123 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-12-13 17:47:47,123 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-12-13 17:47:47,123 INFO L130 BoogieDeclarations]: Found specification of procedure osst_space_over_filemarks_forward_slow [2022-12-13 17:47:47,123 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_space_over_filemarks_forward_slow [2022-12-13 17:47:47,123 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2022-12-13 17:47:47,123 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2022-12-13 17:47:47,123 INFO L130 BoogieDeclarations]: Found specification of procedure sg_set_page [2022-12-13 17:47:47,123 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_set_page [2022-12-13 17:47:47,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 17:47:47,123 INFO L130 BoogieDeclarations]: Found specification of procedure osst_recover_wait_frame [2022-12-13 17:47:47,124 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_recover_wait_frame [2022-12-13 17:47:47,124 INFO L130 BoogieDeclarations]: Found specification of procedure osst_wait_frame [2022-12-13 17:47:47,124 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_wait_frame [2022-12-13 17:47:47,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 17:47:47,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 17:47:47,124 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-12-13 17:47:47,124 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-12-13 17:47:47,756 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 17:47:47,758 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 17:48:02,843 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 17:48:02,857 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 17:48:02,857 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-12-13 17:48:02,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:48:02 BoogieIcfgContainer [2022-12-13 17:48:02,861 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 17:48:02,862 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 17:48:02,862 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 17:48:02,864 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 17:48:02,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 05:47:44" (1/3) ... [2022-12-13 17:48:02,865 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4916992f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 05:48:02, skipping insertion in model container [2022-12-13 17:48:02,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:47:46" (2/3) ... [2022-12-13 17:48:02,865 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4916992f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 05:48:02, skipping insertion in model container [2022-12-13 17:48:02,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:48:02" (3/3) ... [2022-12-13 17:48:02,866 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.8-rc1-32_7a-drivers--scsi--osst.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i [2022-12-13 17:48:02,880 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 17:48:02,880 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 17:48:02,948 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 17:48:02,953 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=PETRI_NET, 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;@ce3a577, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 17:48:02,953 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 17:48:02,963 INFO L276 IsEmpty]: Start isEmpty. Operand has 2989 states, 2292 states have (on average 1.456369982547993) internal successors, (3338), 2318 states have internal predecessors, (3338), 603 states have call successors, (603), 92 states have call predecessors, (603), 92 states have return successors, (603), 600 states have call predecessors, (603), 603 states have call successors, (603) [2022-12-13 17:48:02,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-12-13 17:48:02,969 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:48:02,969 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:48:02,970 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:48:02,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:48:02,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1132410662, now seen corresponding path program 1 times [2022-12-13 17:48:02,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:48:02,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244373480] [2022-12-13 17:48:02,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:48:02,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:48:03,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:03,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 17:48:03,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:03,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 17:48:03,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:03,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 17:48:03,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:03,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:03,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:03,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:48:03,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:48:03,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244373480] [2022-12-13 17:48:03,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244373480] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:48:03,505 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:48:03,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 17:48:03,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902950800] [2022-12-13 17:48:03,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:48:03,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 17:48:03,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:48:03,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 17:48:03,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 17:48:03,547 INFO L87 Difference]: Start difference. First operand has 2989 states, 2292 states have (on average 1.456369982547993) internal successors, (3338), 2318 states have internal predecessors, (3338), 603 states have call successors, (603), 92 states have call predecessors, (603), 92 states have return successors, (603), 600 states have call predecessors, (603), 603 states have call successors, (603) Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-12-13 17:48:07,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:48:07,380 INFO L93 Difference]: Finished difference Result 6157 states and 9667 transitions. [2022-12-13 17:48:07,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 17:48:07,382 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 38 [2022-12-13 17:48:07,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:48:07,416 INFO L225 Difference]: With dead ends: 6157 [2022-12-13 17:48:07,416 INFO L226 Difference]: Without dead ends: 3165 [2022-12-13 17:48:07,435 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 17:48:07,438 INFO L413 NwaCegarLoop]: 3947 mSDtfsCounter, 4953 mSDsluCounter, 2786 mSDsCounter, 0 mSdLazyCounter, 1174 mSolverCounterSat, 998 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5332 SdHoareTripleChecker+Valid, 6733 SdHoareTripleChecker+Invalid, 2172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 998 IncrementalHoareTripleChecker+Valid, 1174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-12-13 17:48:07,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5332 Valid, 6733 Invalid, 2172 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [998 Valid, 1174 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-12-13 17:48:07,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3165 states. [2022-12-13 17:48:07,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3165 to 2978. [2022-12-13 17:48:07,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2978 states, 2283 states have (on average 1.4537888742882172) internal successors, (3319), 2307 states have internal predecessors, (3319), 603 states have call successors, (603), 92 states have call predecessors, (603), 91 states have return successors, (595), 592 states have call predecessors, (595), 595 states have call successors, (595) [2022-12-13 17:48:07,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2978 states to 2978 states and 4517 transitions. [2022-12-13 17:48:07,614 INFO L78 Accepts]: Start accepts. Automaton has 2978 states and 4517 transitions. Word has length 38 [2022-12-13 17:48:07,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:48:07,614 INFO L495 AbstractCegarLoop]: Abstraction has 2978 states and 4517 transitions. [2022-12-13 17:48:07,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-12-13 17:48:07,615 INFO L276 IsEmpty]: Start isEmpty. Operand 2978 states and 4517 transitions. [2022-12-13 17:48:07,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-12-13 17:48:07,616 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:48:07,616 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:48:07,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 17:48:07,617 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:48:07,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:48:07,617 INFO L85 PathProgramCache]: Analyzing trace with hash -430810788, now seen corresponding path program 1 times [2022-12-13 17:48:07,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:48:07,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8656684] [2022-12-13 17:48:07,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:48:07,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:48:07,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:07,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 17:48:07,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:07,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 17:48:07,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:07,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 17:48:07,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:07,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:07,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:07,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:48:07,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:48:07,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8656684] [2022-12-13 17:48:07,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8656684] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:48:07,904 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:48:07,904 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 17:48:07,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122802508] [2022-12-13 17:48:07,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:48:07,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 17:48:07,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:48:07,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 17:48:07,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 17:48:07,907 INFO L87 Difference]: Start difference. First operand 2978 states and 4517 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-12-13 17:48:11,543 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 [] [2022-12-13 17:48:16,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:48:16,479 INFO L93 Difference]: Finished difference Result 9206 states and 14105 transitions. [2022-12-13 17:48:16,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 17:48:16,480 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 38 [2022-12-13 17:48:16,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:48:16,512 INFO L225 Difference]: With dead ends: 9206 [2022-12-13 17:48:16,512 INFO L226 Difference]: Without dead ends: 6236 [2022-12-13 17:48:16,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 17:48:16,523 INFO L413 NwaCegarLoop]: 4462 mSDtfsCounter, 5595 mSDsluCounter, 6546 mSDsCounter, 0 mSdLazyCounter, 2563 mSolverCounterSat, 1525 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6056 SdHoareTripleChecker+Valid, 11008 SdHoareTripleChecker+Invalid, 4089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1525 IncrementalHoareTripleChecker+Valid, 2563 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-12-13 17:48:16,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6056 Valid, 11008 Invalid, 4089 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1525 Valid, 2563 Invalid, 1 Unknown, 0 Unchecked, 8.2s Time] [2022-12-13 17:48:16,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6236 states. [2022-12-13 17:48:16,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6236 to 5845. [2022-12-13 17:48:16,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5845 states, 4490 states have (on average 1.4547884187082405) internal successors, (6532), 4527 states have internal predecessors, (6532), 1174 states have call successors, (1174), 181 states have call predecessors, (1174), 180 states have return successors, (1166), 1160 states have call predecessors, (1166), 1166 states have call successors, (1166) [2022-12-13 17:48:16,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5845 states to 5845 states and 8872 transitions. [2022-12-13 17:48:16,714 INFO L78 Accepts]: Start accepts. Automaton has 5845 states and 8872 transitions. Word has length 38 [2022-12-13 17:48:16,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:48:16,714 INFO L495 AbstractCegarLoop]: Abstraction has 5845 states and 8872 transitions. [2022-12-13 17:48:16,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-12-13 17:48:16,714 INFO L276 IsEmpty]: Start isEmpty. Operand 5845 states and 8872 transitions. [2022-12-13 17:48:16,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-12-13 17:48:16,715 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:48:16,715 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:48:16,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 17:48:16,715 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:48:16,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:48:16,716 INFO L85 PathProgramCache]: Analyzing trace with hash 955392606, now seen corresponding path program 1 times [2022-12-13 17:48:16,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:48:16,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690064861] [2022-12-13 17:48:16,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:48:16,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:48:16,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:16,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 17:48:16,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:16,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 17:48:16,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:16,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 17:48:16,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:16,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:16,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:16,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:48:16,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:48:16,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690064861] [2022-12-13 17:48:16,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690064861] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:48:16,906 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:48:16,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 17:48:16,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691937697] [2022-12-13 17:48:16,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:48:16,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 17:48:16,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:48:16,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 17:48:16,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 17:48:16,907 INFO L87 Difference]: Start difference. First operand 5845 states and 8872 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-12-13 17:48:23,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:48:23,292 INFO L93 Difference]: Finished difference Result 18652 states and 29277 transitions. [2022-12-13 17:48:23,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 17:48:23,292 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 38 [2022-12-13 17:48:23,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:48:23,341 INFO L225 Difference]: With dead ends: 18652 [2022-12-13 17:48:23,342 INFO L226 Difference]: Without dead ends: 12848 [2022-12-13 17:48:23,372 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:48:23,372 INFO L413 NwaCegarLoop]: 6593 mSDtfsCounter, 4976 mSDsluCounter, 13859 mSDsCounter, 0 mSdLazyCounter, 3837 mSolverCounterSat, 1349 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5569 SdHoareTripleChecker+Valid, 20452 SdHoareTripleChecker+Invalid, 5186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1349 IncrementalHoareTripleChecker+Valid, 3837 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-12-13 17:48:23,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5569 Valid, 20452 Invalid, 5186 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1349 Valid, 3837 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2022-12-13 17:48:23,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12848 states. [2022-12-13 17:48:23,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12848 to 5847. [2022-12-13 17:48:23,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5847 states, 4492 states have (on average 1.4545859305431879) internal successors, (6534), 4529 states have internal predecessors, (6534), 1174 states have call successors, (1174), 181 states have call predecessors, (1174), 180 states have return successors, (1166), 1160 states have call predecessors, (1166), 1166 states have call successors, (1166) [2022-12-13 17:48:23,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5847 states to 5847 states and 8874 transitions. [2022-12-13 17:48:23,653 INFO L78 Accepts]: Start accepts. Automaton has 5847 states and 8874 transitions. Word has length 38 [2022-12-13 17:48:23,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:48:23,653 INFO L495 AbstractCegarLoop]: Abstraction has 5847 states and 8874 transitions. [2022-12-13 17:48:23,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-12-13 17:48:23,654 INFO L276 IsEmpty]: Start isEmpty. Operand 5847 states and 8874 transitions. [2022-12-13 17:48:23,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-12-13 17:48:23,654 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:48:23,654 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:48:23,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 17:48:23,654 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:48:23,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:48:23,655 INFO L85 PathProgramCache]: Analyzing trace with hash -1288817409, now seen corresponding path program 1 times [2022-12-13 17:48:23,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:48:23,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868752383] [2022-12-13 17:48:23,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:48:23,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:48:23,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:23,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 17:48:23,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:23,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 17:48:23,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:23,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 17:48:23,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:23,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:23,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:23,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 17:48:23,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:23,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:48:23,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:48:23,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868752383] [2022-12-13 17:48:23,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868752383] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:48:23,802 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:48:23,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 17:48:23,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284768464] [2022-12-13 17:48:23,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:48:23,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 17:48:23,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:48:23,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 17:48:23,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 17:48:23,803 INFO L87 Difference]: Start difference. First operand 5847 states and 8874 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 17:48:27,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:48:27,136 INFO L93 Difference]: Finished difference Result 6223 states and 9582 transitions. [2022-12-13 17:48:27,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 17:48:27,137 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 43 [2022-12-13 17:48:27,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:48:27,157 INFO L225 Difference]: With dead ends: 6223 [2022-12-13 17:48:27,157 INFO L226 Difference]: Without dead ends: 6220 [2022-12-13 17:48:27,160 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 17:48:27,160 INFO L413 NwaCegarLoop]: 3947 mSDtfsCounter, 4911 mSDsluCounter, 2787 mSDsCounter, 0 mSdLazyCounter, 1165 mSolverCounterSat, 996 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5281 SdHoareTripleChecker+Valid, 6734 SdHoareTripleChecker+Invalid, 2161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 996 IncrementalHoareTripleChecker+Valid, 1165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-12-13 17:48:27,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5281 Valid, 6734 Invalid, 2161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [996 Valid, 1165 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-12-13 17:48:27,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6220 states. [2022-12-13 17:48:27,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6220 to 5846. [2022-12-13 17:48:27,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5846 states, 4492 states have (on average 1.4543633125556545) internal successors, (6533), 4528 states have internal predecessors, (6533), 1173 states have call successors, (1173), 181 states have call predecessors, (1173), 180 states have return successors, (1166), 1160 states have call predecessors, (1166), 1166 states have call successors, (1166) [2022-12-13 17:48:27,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5846 states to 5846 states and 8872 transitions. [2022-12-13 17:48:27,359 INFO L78 Accepts]: Start accepts. Automaton has 5846 states and 8872 transitions. Word has length 43 [2022-12-13 17:48:27,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:48:27,360 INFO L495 AbstractCegarLoop]: Abstraction has 5846 states and 8872 transitions. [2022-12-13 17:48:27,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 17:48:27,361 INFO L276 IsEmpty]: Start isEmpty. Operand 5846 states and 8872 transitions. [2022-12-13 17:48:27,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-12-13 17:48:27,362 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:48:27,362 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:48:27,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 17:48:27,362 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:48:27,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:48:27,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1299757644, now seen corresponding path program 1 times [2022-12-13 17:48:27,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:48:27,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170140184] [2022-12-13 17:48:27,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:48:27,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:48:27,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:27,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 17:48:27,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:27,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 17:48:27,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:27,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 17:48:27,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:27,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:27,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:27,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 17:48:27,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:27,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:48:27,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:48:27,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170140184] [2022-12-13 17:48:27,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170140184] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:48:27,526 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:48:27,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 17:48:27,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677508622] [2022-12-13 17:48:27,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:48:27,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 17:48:27,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:48:27,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 17:48:27,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 17:48:27,527 INFO L87 Difference]: Start difference. First operand 5846 states and 8872 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 17:48:33,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:48:33,702 INFO L93 Difference]: Finished difference Result 18148 states and 27854 transitions. [2022-12-13 17:48:33,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 17:48:33,702 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 44 [2022-12-13 17:48:33,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:48:33,768 INFO L225 Difference]: With dead ends: 18148 [2022-12-13 17:48:33,769 INFO L226 Difference]: Without dead ends: 12347 [2022-12-13 17:48:33,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 17:48:33,789 INFO L413 NwaCegarLoop]: 6082 mSDtfsCounter, 5483 mSDsluCounter, 7910 mSDsCounter, 0 mSdLazyCounter, 2752 mSolverCounterSat, 1311 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5941 SdHoareTripleChecker+Valid, 13992 SdHoareTripleChecker+Invalid, 4063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1311 IncrementalHoareTripleChecker+Valid, 2752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-12-13 17:48:33,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5941 Valid, 13992 Invalid, 4063 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1311 Valid, 2752 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2022-12-13 17:48:33,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12347 states. [2022-12-13 17:48:34,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12347 to 11580. [2022-12-13 17:48:34,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11580 states, 8914 states have (on average 1.456024231545883) internal successors, (12979), 8985 states have internal predecessors, (12979), 2309 states have call successors, (2309), 358 states have call predecessors, (2309), 356 states have return successors, (2310), 2282 states have call predecessors, (2310), 2298 states have call successors, (2310) [2022-12-13 17:48:34,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11580 states to 11580 states and 17598 transitions. [2022-12-13 17:48:34,247 INFO L78 Accepts]: Start accepts. Automaton has 11580 states and 17598 transitions. Word has length 44 [2022-12-13 17:48:34,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:48:34,248 INFO L495 AbstractCegarLoop]: Abstraction has 11580 states and 17598 transitions. [2022-12-13 17:48:34,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 17:48:34,248 INFO L276 IsEmpty]: Start isEmpty. Operand 11580 states and 17598 transitions. [2022-12-13 17:48:34,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-12-13 17:48:34,249 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:48:34,249 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:48:34,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 17:48:34,249 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:48:34,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:48:34,250 INFO L85 PathProgramCache]: Analyzing trace with hash -1638900062, now seen corresponding path program 1 times [2022-12-13 17:48:34,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:48:34,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695887438] [2022-12-13 17:48:34,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:48:34,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:48:34,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:34,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 17:48:34,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:34,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 17:48:34,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:34,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 17:48:34,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:34,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:34,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:34,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 17:48:34,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:34,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:48:34,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:48:34,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695887438] [2022-12-13 17:48:34,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695887438] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:48:34,424 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:48:34,424 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 17:48:34,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10598227] [2022-12-13 17:48:34,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:48:34,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 17:48:34,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:48:34,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 17:48:34,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 17:48:34,425 INFO L87 Difference]: Start difference. First operand 11580 states and 17598 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 17:48:38,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:48:38,341 INFO L93 Difference]: Finished difference Result 12330 states and 19012 transitions. [2022-12-13 17:48:38,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 17:48:38,342 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 45 [2022-12-13 17:48:38,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:48:38,377 INFO L225 Difference]: With dead ends: 12330 [2022-12-13 17:48:38,377 INFO L226 Difference]: Without dead ends: 12327 [2022-12-13 17:48:38,381 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 17:48:38,382 INFO L413 NwaCegarLoop]: 3944 mSDtfsCounter, 4907 mSDsluCounter, 2785 mSDsCounter, 0 mSdLazyCounter, 1165 mSolverCounterSat, 995 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5278 SdHoareTripleChecker+Valid, 6729 SdHoareTripleChecker+Invalid, 2160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 995 IncrementalHoareTripleChecker+Valid, 1165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-12-13 17:48:38,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5278 Valid, 6729 Invalid, 2160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [995 Valid, 1165 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-12-13 17:48:38,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12327 states. [2022-12-13 17:48:38,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12327 to 11579. [2022-12-13 17:48:38,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11579 states, 8914 states have (on average 1.4559120484630919) internal successors, (12978), 8984 states have internal predecessors, (12978), 2308 states have call successors, (2308), 358 states have call predecessors, (2308), 356 states have return successors, (2310), 2282 states have call predecessors, (2310), 2298 states have call successors, (2310) [2022-12-13 17:48:38,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11579 states to 11579 states and 17596 transitions. [2022-12-13 17:48:38,779 INFO L78 Accepts]: Start accepts. Automaton has 11579 states and 17596 transitions. Word has length 45 [2022-12-13 17:48:38,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:48:38,779 INFO L495 AbstractCegarLoop]: Abstraction has 11579 states and 17596 transitions. [2022-12-13 17:48:38,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 17:48:38,780 INFO L276 IsEmpty]: Start isEmpty. Operand 11579 states and 17596 transitions. [2022-12-13 17:48:38,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-12-13 17:48:38,780 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:48:38,780 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:48:38,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 17:48:38,781 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:48:38,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:48:38,781 INFO L85 PathProgramCache]: Analyzing trace with hash 732591735, now seen corresponding path program 1 times [2022-12-13 17:48:38,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:48:38,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296334164] [2022-12-13 17:48:38,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:48:38,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:48:38,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:38,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 17:48:38,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:38,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 17:48:38,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:38,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 17:48:38,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:38,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:38,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:38,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 17:48:38,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:38,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:48:38,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:48:38,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296334164] [2022-12-13 17:48:38,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296334164] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:48:38,972 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:48:38,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 17:48:38,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691310757] [2022-12-13 17:48:38,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:48:38,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 17:48:38,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:48:38,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 17:48:38,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 17:48:38,973 INFO L87 Difference]: Start difference. First operand 11579 states and 17596 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 17:48:43,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:48:43,836 INFO L93 Difference]: Finished difference Result 17787 states and 26913 transitions. [2022-12-13 17:48:43,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 17:48:43,836 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 46 [2022-12-13 17:48:43,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:48:43,910 INFO L225 Difference]: With dead ends: 17787 [2022-12-13 17:48:43,910 INFO L226 Difference]: Without dead ends: 17717 [2022-12-13 17:48:43,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 17:48:43,924 INFO L413 NwaCegarLoop]: 4144 mSDtfsCounter, 3880 mSDsluCounter, 5637 mSDsCounter, 0 mSdLazyCounter, 2098 mSolverCounterSat, 1207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4184 SdHoareTripleChecker+Valid, 9781 SdHoareTripleChecker+Invalid, 3305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1207 IncrementalHoareTripleChecker+Valid, 2098 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-12-13 17:48:43,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4184 Valid, 9781 Invalid, 3305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1207 Valid, 2098 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-12-13 17:48:43,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17717 states. [2022-12-13 17:48:44,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17717 to 16351. [2022-12-13 17:48:44,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16351 states, 12419 states have (on average 1.4314357033577583) internal successors, (17777), 12511 states have internal predecessors, (17777), 3310 states have call successors, (3310), 623 states have call predecessors, (3310), 621 states have return successors, (3314), 3283 states have call predecessors, (3314), 3302 states have call successors, (3314) [2022-12-13 17:48:44,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16351 states to 16351 states and 24401 transitions. [2022-12-13 17:48:44,696 INFO L78 Accepts]: Start accepts. Automaton has 16351 states and 24401 transitions. Word has length 46 [2022-12-13 17:48:44,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:48:44,696 INFO L495 AbstractCegarLoop]: Abstraction has 16351 states and 24401 transitions. [2022-12-13 17:48:44,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 17:48:44,696 INFO L276 IsEmpty]: Start isEmpty. Operand 16351 states and 24401 transitions. [2022-12-13 17:48:44,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-12-13 17:48:44,698 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:48:44,698 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:48:44,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 17:48:44,698 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:48:44,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:48:44,699 INFO L85 PathProgramCache]: Analyzing trace with hash -559043739, now seen corresponding path program 1 times [2022-12-13 17:48:44,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:48:44,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993584952] [2022-12-13 17:48:44,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:48:44,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:48:44,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:44,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 17:48:44,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:44,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 17:48:44,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:44,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 17:48:44,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:44,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:44,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:44,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 17:48:44,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:44,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 17:48:44,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:44,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-12-13 17:48:44,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:44,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-12-13 17:48:44,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:44,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 17:48:44,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:44,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-12-13 17:48:44,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:44,933 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 17:48:44,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:48:44,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993584952] [2022-12-13 17:48:44,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993584952] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:48:44,934 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:48:44,934 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 17:48:44,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275111716] [2022-12-13 17:48:44,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:48:44,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 17:48:44,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:48:44,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 17:48:44,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 17:48:44,935 INFO L87 Difference]: Start difference. First operand 16351 states and 24401 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-12-13 17:48:55,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:48:55,748 INFO L93 Difference]: Finished difference Result 36094 states and 54588 transitions. [2022-12-13 17:48:55,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 17:48:55,749 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 85 [2022-12-13 17:48:55,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:48:55,838 INFO L225 Difference]: With dead ends: 36094 [2022-12-13 17:48:55,839 INFO L226 Difference]: Without dead ends: 19799 [2022-12-13 17:48:55,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:48:55,896 INFO L413 NwaCegarLoop]: 1952 mSDtfsCounter, 4078 mSDsluCounter, 3999 mSDsCounter, 0 mSdLazyCounter, 8022 mSolverCounterSat, 1460 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4592 SdHoareTripleChecker+Valid, 5951 SdHoareTripleChecker+Invalid, 9482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1460 IncrementalHoareTripleChecker+Valid, 8022 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2022-12-13 17:48:55,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4592 Valid, 5951 Invalid, 9482 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1460 Valid, 8022 Invalid, 0 Unknown, 0 Unchecked, 9.8s Time] [2022-12-13 17:48:55,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19799 states. [2022-12-13 17:48:56,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19799 to 17791. [2022-12-13 17:48:56,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17791 states, 13601 states have (on average 1.4393794573928387) internal successors, (19577), 13705 states have internal predecessors, (19577), 3568 states have call successors, (3568), 623 states have call predecessors, (3568), 621 states have return successors, (3576), 3537 states have call predecessors, (3576), 3560 states have call successors, (3576) [2022-12-13 17:48:56,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17791 states to 17791 states and 26721 transitions. [2022-12-13 17:48:56,623 INFO L78 Accepts]: Start accepts. Automaton has 17791 states and 26721 transitions. Word has length 85 [2022-12-13 17:48:56,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:48:56,623 INFO L495 AbstractCegarLoop]: Abstraction has 17791 states and 26721 transitions. [2022-12-13 17:48:56,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-12-13 17:48:56,623 INFO L276 IsEmpty]: Start isEmpty. Operand 17791 states and 26721 transitions. [2022-12-13 17:48:56,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-12-13 17:48:56,625 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:48:56,625 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:48:56,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 17:48:56,625 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:48:56,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:48:56,625 INFO L85 PathProgramCache]: Analyzing trace with hash 111172918, now seen corresponding path program 1 times [2022-12-13 17:48:56,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:48:56,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295104815] [2022-12-13 17:48:56,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:48:56,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:48:56,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:56,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 17:48:56,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:56,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 17:48:56,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:56,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 17:48:56,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:56,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:56,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:56,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 17:48:56,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:56,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 17:48:56,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:56,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-12-13 17:48:56,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:56,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-12-13 17:48:56,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:56,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 17:48:56,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:56,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-12-13 17:48:56,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:56,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-12-13 17:48:56,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:56,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-12-13 17:48:56,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:56,919 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-13 17:48:56,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:48:56,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295104815] [2022-12-13 17:48:56,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295104815] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:48:56,919 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:48:56,919 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 17:48:56,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516165278] [2022-12-13 17:48:56,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:48:56,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 17:48:56,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:48:56,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 17:48:56,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 17:48:56,921 INFO L87 Difference]: Start difference. First operand 17791 states and 26721 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 17:49:10,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:49:10,138 INFO L93 Difference]: Finished difference Result 19159 states and 29166 transitions. [2022-12-13 17:49:10,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 17:49:10,139 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 89 [2022-12-13 17:49:10,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:49:10,212 INFO L225 Difference]: With dead ends: 19159 [2022-12-13 17:49:10,213 INFO L226 Difference]: Without dead ends: 19156 [2022-12-13 17:49:10,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-12-13 17:49:10,219 INFO L413 NwaCegarLoop]: 1748 mSDtfsCounter, 5912 mSDsluCounter, 3512 mSDsCounter, 0 mSdLazyCounter, 9755 mSolverCounterSat, 2711 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6249 SdHoareTripleChecker+Valid, 5260 SdHoareTripleChecker+Invalid, 12466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2711 IncrementalHoareTripleChecker+Valid, 9755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2022-12-13 17:49:10,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6249 Valid, 5260 Invalid, 12466 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2711 Valid, 9755 Invalid, 0 Unknown, 0 Unchecked, 12.2s Time] [2022-12-13 17:49:10,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19156 states. [2022-12-13 17:49:10,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19156 to 17790. [2022-12-13 17:49:10,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17790 states, 13601 states have (on average 1.4390853613704875) internal successors, (19573), 13704 states have internal predecessors, (19573), 3567 states have call successors, (3567), 623 states have call predecessors, (3567), 621 states have return successors, (3576), 3537 states have call predecessors, (3576), 3560 states have call successors, (3576) [2022-12-13 17:49:10,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17790 states to 17790 states and 26716 transitions. [2022-12-13 17:49:10,927 INFO L78 Accepts]: Start accepts. Automaton has 17790 states and 26716 transitions. Word has length 89 [2022-12-13 17:49:10,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:49:10,927 INFO L495 AbstractCegarLoop]: Abstraction has 17790 states and 26716 transitions. [2022-12-13 17:49:10,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 17:49:10,927 INFO L276 IsEmpty]: Start isEmpty. Operand 17790 states and 26716 transitions. [2022-12-13 17:49:10,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-12-13 17:49:10,931 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:49:10,932 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 17:49:10,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 17:49:10,932 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:49:10,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:49:10,932 INFO L85 PathProgramCache]: Analyzing trace with hash 814383467, now seen corresponding path program 1 times [2022-12-13 17:49:10,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:49:10,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7765379] [2022-12-13 17:49:10,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:49:10,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:49:11,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:11,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 17:49:11,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:11,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 17:49:11,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:11,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 17:49:11,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:11,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:49:11,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:11,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 17:49:11,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:11,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-12-13 17:49:11,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:11,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-12-13 17:49:11,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:11,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-12-13 17:49:11,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:11,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-12-13 17:49:11,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:11,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-12-13 17:49:11,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:11,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 17:49:11,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:11,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 17:49:11,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:11,262 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 17:49:11,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:49:11,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7765379] [2022-12-13 17:49:11,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7765379] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:49:11,262 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:49:11,262 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 17:49:11,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864411087] [2022-12-13 17:49:11,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:49:11,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 17:49:11,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:49:11,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 17:49:11,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:49:11,264 INFO L87 Difference]: Start difference. First operand 17790 states and 26716 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 17:49:28,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:49:28,785 INFO L93 Difference]: Finished difference Result 36886 states and 55805 transitions. [2022-12-13 17:49:28,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 17:49:28,785 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 98 [2022-12-13 17:49:28,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:49:28,866 INFO L225 Difference]: With dead ends: 36886 [2022-12-13 17:49:28,866 INFO L226 Difference]: Without dead ends: 19152 [2022-12-13 17:49:28,902 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2022-12-13 17:49:28,902 INFO L413 NwaCegarLoop]: 2692 mSDtfsCounter, 8918 mSDsluCounter, 7785 mSDsCounter, 0 mSdLazyCounter, 13021 mSolverCounterSat, 5121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9152 SdHoareTripleChecker+Valid, 10477 SdHoareTripleChecker+Invalid, 18142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5121 IncrementalHoareTripleChecker+Valid, 13021 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.1s IncrementalHoareTripleChecker+Time [2022-12-13 17:49:28,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9152 Valid, 10477 Invalid, 18142 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5121 Valid, 13021 Invalid, 0 Unknown, 0 Unchecked, 16.1s Time] [2022-12-13 17:49:28,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19152 states. [2022-12-13 17:49:29,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19152 to 17746. [2022-12-13 17:49:29,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17746 states, 13577 states have (on average 1.439272298740517) internal successors, (19541), 13681 states have internal predecessors, (19541), 3549 states have call successors, (3549), 618 states have call predecessors, (3549), 619 states have return successors, (3547), 3521 states have call predecessors, (3547), 3539 states have call successors, (3547) [2022-12-13 17:49:29,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17746 states to 17746 states and 26637 transitions. [2022-12-13 17:49:29,621 INFO L78 Accepts]: Start accepts. Automaton has 17746 states and 26637 transitions. Word has length 98 [2022-12-13 17:49:29,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:49:29,621 INFO L495 AbstractCegarLoop]: Abstraction has 17746 states and 26637 transitions. [2022-12-13 17:49:29,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 17:49:29,621 INFO L276 IsEmpty]: Start isEmpty. Operand 17746 states and 26637 transitions. [2022-12-13 17:49:29,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-12-13 17:49:29,623 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:49:29,623 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 17:49:29,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 17:49:29,623 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:49:29,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:49:29,624 INFO L85 PathProgramCache]: Analyzing trace with hash 405559242, now seen corresponding path program 1 times [2022-12-13 17:49:29,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:49:29,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216199260] [2022-12-13 17:49:29,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:49:29,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:49:29,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:29,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 17:49:29,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:29,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 17:49:29,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:29,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 17:49:29,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:29,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:49:29,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:29,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 17:49:29,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:29,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-12-13 17:49:29,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:29,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-12-13 17:49:29,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:30,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-12-13 17:49:30,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:30,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-12-13 17:49:30,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:30,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-12-13 17:49:30,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:30,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 17:49:30,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:30,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 17:49:30,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:30,059 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 17:49:30,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:49:30,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216199260] [2022-12-13 17:49:30,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216199260] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:49:30,059 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:49:30,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 17:49:30,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232501377] [2022-12-13 17:49:30,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:49:30,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 17:49:30,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:49:30,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 17:49:30,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 17:49:30,061 INFO L87 Difference]: Start difference. First operand 17746 states and 26637 transitions. Second operand has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 17:49:48,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:49:48,523 INFO L93 Difference]: Finished difference Result 24164 states and 36979 transitions. [2022-12-13 17:49:48,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 17:49:48,523 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 98 [2022-12-13 17:49:48,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:49:48,583 INFO L225 Difference]: With dead ends: 24164 [2022-12-13 17:49:48,583 INFO L226 Difference]: Without dead ends: 20579 [2022-12-13 17:49:48,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2022-12-13 17:49:48,601 INFO L413 NwaCegarLoop]: 3137 mSDtfsCounter, 6714 mSDsluCounter, 15861 mSDsCounter, 0 mSdLazyCounter, 17863 mSolverCounterSat, 3338 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6717 SdHoareTripleChecker+Valid, 18998 SdHoareTripleChecker+Invalid, 21201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3338 IncrementalHoareTripleChecker+Valid, 17863 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.0s IncrementalHoareTripleChecker+Time [2022-12-13 17:49:48,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6717 Valid, 18998 Invalid, 21201 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3338 Valid, 17863 Invalid, 0 Unknown, 0 Unchecked, 17.0s Time] [2022-12-13 17:49:48,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20579 states. [2022-12-13 17:49:49,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20579 to 15664. [2022-12-13 17:49:49,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15664 states, 11903 states have (on average 1.4272872385112996) internal successors, (16989), 11999 states have internal predecessors, (16989), 3183 states have call successors, (3183), 576 states have call predecessors, (3183), 577 states have return successors, (3183), 3161 states have call predecessors, (3183), 3175 states have call successors, (3183) [2022-12-13 17:49:49,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15664 states to 15664 states and 23355 transitions. [2022-12-13 17:49:49,422 INFO L78 Accepts]: Start accepts. Automaton has 15664 states and 23355 transitions. Word has length 98 [2022-12-13 17:49:49,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:49:49,422 INFO L495 AbstractCegarLoop]: Abstraction has 15664 states and 23355 transitions. [2022-12-13 17:49:49,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 17:49:49,423 INFO L276 IsEmpty]: Start isEmpty. Operand 15664 states and 23355 transitions. [2022-12-13 17:49:49,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-12-13 17:49:49,428 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:49:49,428 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:49:49,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 17:49:49,428 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:49:49,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:49:49,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1573179008, now seen corresponding path program 1 times [2022-12-13 17:49:49,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:49:49,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826317283] [2022-12-13 17:49:49,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:49:49,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:49:49,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:49,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 17:49:49,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:49,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 17:49:49,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:49,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 17:49:49,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:49,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:49:49,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:49,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 17:49:49,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:49,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-12-13 17:49:49,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:49,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-12-13 17:49:49,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:49,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-12-13 17:49:49,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:49,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-12-13 17:49:49,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:49,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-12-13 17:49:49,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:49,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 17:49:49,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:49,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 17:49:49,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:49,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-12-13 17:49:49,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:49,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-12-13 17:49:49,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:49,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-12-13 17:49:49,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:49,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-12-13 17:49:49,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:49,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-12-13 17:49:49,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:49,771 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-13 17:49:49,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:49:49,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826317283] [2022-12-13 17:49:49,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826317283] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:49:49,771 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:49:49,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 17:49:49,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615403130] [2022-12-13 17:49:49,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:49:49,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 17:49:49,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:49:49,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 17:49:49,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 17:49:49,773 INFO L87 Difference]: Start difference. First operand 15664 states and 23355 transitions. Second operand has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-13 17:50:07,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:50:07,170 INFO L93 Difference]: Finished difference Result 26289 states and 39914 transitions. [2022-12-13 17:50:07,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 17:50:07,171 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) Word has length 126 [2022-12-13 17:50:07,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:50:07,234 INFO L225 Difference]: With dead ends: 26289 [2022-12-13 17:50:07,234 INFO L226 Difference]: Without dead ends: 20563 [2022-12-13 17:50:07,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2022-12-13 17:50:07,256 INFO L413 NwaCegarLoop]: 3131 mSDtfsCounter, 7590 mSDsluCounter, 14955 mSDsCounter, 0 mSdLazyCounter, 17824 mSolverCounterSat, 3411 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7593 SdHoareTripleChecker+Valid, 18086 SdHoareTripleChecker+Invalid, 21235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3411 IncrementalHoareTripleChecker+Valid, 17824 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.1s IncrementalHoareTripleChecker+Time [2022-12-13 17:50:07,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7593 Valid, 18086 Invalid, 21235 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3411 Valid, 17824 Invalid, 0 Unknown, 0 Unchecked, 16.1s Time] [2022-12-13 17:50:07,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20563 states. [2022-12-13 17:50:07,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20563 to 15648. [2022-12-13 17:50:07,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15648 states, 11895 states have (on average 1.4272383354350568) internal successors, (16977), 11991 states have internal predecessors, (16977), 3175 states have call successors, (3175), 576 states have call predecessors, (3175), 577 states have return successors, (3175), 3153 states have call predecessors, (3175), 3167 states have call successors, (3175) [2022-12-13 17:50:08,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15648 states to 15648 states and 23327 transitions. [2022-12-13 17:50:08,058 INFO L78 Accepts]: Start accepts. Automaton has 15648 states and 23327 transitions. Word has length 126 [2022-12-13 17:50:08,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:50:08,058 INFO L495 AbstractCegarLoop]: Abstraction has 15648 states and 23327 transitions. [2022-12-13 17:50:08,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-13 17:50:08,059 INFO L276 IsEmpty]: Start isEmpty. Operand 15648 states and 23327 transitions. [2022-12-13 17:50:08,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-12-13 17:50:08,065 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:50:08,065 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 17:50:08,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 17:50:08,065 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:50:08,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:50:08,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1900844483, now seen corresponding path program 1 times [2022-12-13 17:50:08,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:50:08,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118874242] [2022-12-13 17:50:08,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:50:08,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:50:08,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:50:08,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 17:50:08,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:50:08,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 17:50:08,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:50:08,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 17:50:08,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:50:08,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:50:08,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:50:08,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 17:50:08,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:50:08,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 17:50:08,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:50:08,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-12-13 17:50:08,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:50:08,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-12-13 17:50:08,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:50:08,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 17:50:08,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:50:08,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-12-13 17:50:08,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:50:08,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-12-13 17:50:08,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:50:08,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-12-13 17:50:08,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:50:08,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 17:50:08,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:50:08,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-12-13 17:50:08,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:50:08,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 17:50:08,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:50:08,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-12-13 17:50:08,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:50:08,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-12-13 17:50:08,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:50:08,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-12-13 17:50:08,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:50:08,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-12-13 17:50:08,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:50:08,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-12-13 17:50:08,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:50:08,402 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-13 17:50:08,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:50:08,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118874242] [2022-12-13 17:50:08,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118874242] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:50:08,402 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:50:08,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 17:50:08,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144997052] [2022-12-13 17:50:08,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:50:08,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 17:50:08,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:50:08,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 17:50:08,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 17:50:08,404 INFO L87 Difference]: Start difference. First operand 15648 states and 23327 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 6 states have internal predecessors, (101), 4 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2022-12-13 17:50:26,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:50:26,036 INFO L93 Difference]: Finished difference Result 32440 states and 48734 transitions. [2022-12-13 17:50:26,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 17:50:26,037 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 6 states have internal predecessors, (101), 4 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) Word has length 147 [2022-12-13 17:50:26,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:50:26,106 INFO L225 Difference]: With dead ends: 32440 [2022-12-13 17:50:26,106 INFO L226 Difference]: Without dead ends: 16814 [2022-12-13 17:50:26,136 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2022-12-13 17:50:26,136 INFO L413 NwaCegarLoop]: 1899 mSDtfsCounter, 4987 mSDsluCounter, 10687 mSDsCounter, 0 mSdLazyCounter, 16984 mSolverCounterSat, 2986 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4987 SdHoareTripleChecker+Valid, 12586 SdHoareTripleChecker+Invalid, 19970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2986 IncrementalHoareTripleChecker+Valid, 16984 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.3s IncrementalHoareTripleChecker+Time [2022-12-13 17:50:26,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4987 Valid, 12586 Invalid, 19970 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2986 Valid, 16984 Invalid, 0 Unknown, 0 Unchecked, 16.3s Time] [2022-12-13 17:50:26,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16814 states. [2022-12-13 17:50:26,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16814 to 15642. [2022-12-13 17:50:26,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15642 states, 11893 states have (on average 1.4263011855713446) internal successors, (16963), 11989 states have internal predecessors, (16963), 3171 states have call successors, (3171), 576 states have call predecessors, (3171), 577 states have return successors, (3171), 3149 states have call predecessors, (3171), 3163 states have call successors, (3171) [2022-12-13 17:50:27,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15642 states to 15642 states and 23305 transitions. [2022-12-13 17:50:27,014 INFO L78 Accepts]: Start accepts. Automaton has 15642 states and 23305 transitions. Word has length 147 [2022-12-13 17:50:27,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:50:27,014 INFO L495 AbstractCegarLoop]: Abstraction has 15642 states and 23305 transitions. [2022-12-13 17:50:27,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 6 states have internal predecessors, (101), 4 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2022-12-13 17:50:27,014 INFO L276 IsEmpty]: Start isEmpty. Operand 15642 states and 23305 transitions. [2022-12-13 17:50:27,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-12-13 17:50:27,038 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:50:27,038 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:50:27,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 17:50:27,038 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:50:27,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:50:27,039 INFO L85 PathProgramCache]: Analyzing trace with hash -1727234471, now seen corresponding path program 1 times [2022-12-13 17:50:27,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:50:27,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574757947] [2022-12-13 17:50:27,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:50:27,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:50:27,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:50:27,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 17:50:27,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:50:27,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 17:50:27,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:50:27,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 17:50:27,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:50:27,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:50:27,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:50:27,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 17:50:27,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:50:27,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 17:50:27,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:50:27,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-12-13 17:50:27,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:50:27,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-12-13 17:50:27,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:50:27,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 17:50:27,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:50:27,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-12-13 17:50:27,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:50:27,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-12-13 17:50:27,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:50:27,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-12-13 17:50:27,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:50:27,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 17:50:27,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:50:27,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-12-13 17:50:27,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:50:27,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-12-13 17:50:27,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:50:27,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-12-13 17:50:27,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:50:27,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-12-13 17:50:27,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:50:27,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-12-13 17:50:27,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:50:27,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-12-13 17:50:27,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:50:27,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-12-13 17:50:27,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:50:27,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-12-13 17:50:27,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:50:27,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-12-13 17:50:27,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:50:27,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-12-13 17:50:27,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:50:27,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-12-13 17:50:27,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:50:27,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-12-13 17:50:27,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:50:27,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-12-13 17:50:27,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:50:27,502 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-13 17:50:27,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:50:27,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574757947] [2022-12-13 17:50:27,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574757947] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:50:27,503 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:50:27,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 17:50:27,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986028004] [2022-12-13 17:50:27,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:50:27,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 17:50:27,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:50:27,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 17:50:27,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-13 17:50:27,504 INFO L87 Difference]: Start difference. First operand 15642 states and 23305 transitions. Second operand has 8 states, 8 states have (on average 16.0) internal successors, (128), 4 states have internal predecessors, (128), 2 states have call successors, (28), 6 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-12-13 17:50:35,880 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 17:50:42,347 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 17:50:50,042 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 17:50:54,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-13 17:50:56,235 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-13 17:51:00,456 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 [] [2022-12-13 17:51:01,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:51:01,421 INFO L93 Difference]: Finished difference Result 39868 states and 61893 transitions. [2022-12-13 17:51:01,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 17:51:01,421 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.0) internal successors, (128), 4 states have internal predecessors, (128), 2 states have call successors, (28), 6 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 194 [2022-12-13 17:51:01,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:51:01,516 INFO L225 Difference]: With dead ends: 39868 [2022-12-13 17:51:01,516 INFO L226 Difference]: Without dead ends: 24282 [2022-12-13 17:51:01,551 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2022-12-13 17:51:01,551 INFO L413 NwaCegarLoop]: 3229 mSDtfsCounter, 9120 mSDsluCounter, 12108 mSDsCounter, 0 mSdLazyCounter, 15595 mSolverCounterSat, 5244 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9146 SdHoareTripleChecker+Valid, 15337 SdHoareTripleChecker+Invalid, 20844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5244 IncrementalHoareTripleChecker+Valid, 15595 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.1s IncrementalHoareTripleChecker+Time [2022-12-13 17:51:01,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9146 Valid, 15337 Invalid, 20844 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5244 Valid, 15595 Invalid, 5 Unknown, 0 Unchecked, 32.1s Time] [2022-12-13 17:51:01,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24282 states. [2022-12-13 17:51:02,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24282 to 15650. [2022-12-13 17:51:02,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15650 states, 11901 states have (on average 1.4260146206201159) internal successors, (16971), 11997 states have internal predecessors, (16971), 3171 states have call successors, (3171), 576 states have call predecessors, (3171), 577 states have return successors, (3171), 3149 states have call predecessors, (3171), 3163 states have call successors, (3171) [2022-12-13 17:51:02,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15650 states to 15650 states and 23313 transitions. [2022-12-13 17:51:02,494 INFO L78 Accepts]: Start accepts. Automaton has 15650 states and 23313 transitions. Word has length 194 [2022-12-13 17:51:02,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:51:02,494 INFO L495 AbstractCegarLoop]: Abstraction has 15650 states and 23313 transitions. [2022-12-13 17:51:02,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.0) internal successors, (128), 4 states have internal predecessors, (128), 2 states have call successors, (28), 6 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-12-13 17:51:02,495 INFO L276 IsEmpty]: Start isEmpty. Operand 15650 states and 23313 transitions. [2022-12-13 17:51:02,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-12-13 17:51:02,505 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:51:02,505 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:51:02,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-13 17:51:02,505 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:51:02,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:51:02,505 INFO L85 PathProgramCache]: Analyzing trace with hash -1101267979, now seen corresponding path program 1 times [2022-12-13 17:51:02,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:51:02,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862825030] [2022-12-13 17:51:02,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:51:02,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:51:02,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:51:02,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 17:51:02,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:51:02,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 17:51:02,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:51:02,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 17:51:02,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:51:02,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:51:02,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:51:02,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 17:51:02,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:51:02,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 17:51:02,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:51:02,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-12-13 17:51:02,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:51:02,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-12-13 17:51:02,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:51:02,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 17:51:02,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:51:02,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-12-13 17:51:02,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:51:02,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-12-13 17:51:02,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:51:02,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-12-13 17:51:02,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:51:02,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 17:51:02,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:51:02,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-12-13 17:51:02,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:51:02,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-12-13 17:51:02,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:51:02,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-12-13 17:51:02,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:51:02,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-12-13 17:51:02,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:51:03,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-12-13 17:51:03,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:51:03,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-12-13 17:51:03,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:51:03,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-12-13 17:51:03,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:51:03,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-12-13 17:51:03,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:51:03,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-12-13 17:51:03,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:51:03,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-12-13 17:51:03,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:51:03,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-12-13 17:51:03,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:51:03,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-12-13 17:51:03,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:51:03,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-12-13 17:51:03,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:51:03,050 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-13 17:51:03,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:51:03,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862825030] [2022-12-13 17:51:03,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862825030] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:51:03,051 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:51:03,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 17:51:03,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683154635] [2022-12-13 17:51:03,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:51:03,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 17:51:03,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:51:03,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 17:51:03,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-12-13 17:51:03,052 INFO L87 Difference]: Start difference. First operand 15650 states and 23313 transitions. Second operand has 11 states, 11 states have (on average 11.727272727272727) internal successors, (129), 7 states have internal predecessors, (129), 5 states have call successors, (28), 6 states have call predecessors, (28), 1 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) [2022-12-13 17:51:04,391 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 17:51:14,306 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 17:51:22,778 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 17:51:33,363 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-13 17:51:36,278 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 17:51:37,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:51:37,812 INFO L93 Difference]: Finished difference Result 35012 states and 53710 transitions. [2022-12-13 17:51:37,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-13 17:51:37,813 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 11.727272727272727) internal successors, (129), 7 states have internal predecessors, (129), 5 states have call successors, (28), 6 states have call predecessors, (28), 1 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) Word has length 195 [2022-12-13 17:51:37,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:51:37,883 INFO L225 Difference]: With dead ends: 35012 [2022-12-13 17:51:37,883 INFO L226 Difference]: Without dead ends: 19386 [2022-12-13 17:51:37,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=108, Invalid=444, Unknown=0, NotChecked=0, Total=552 [2022-12-13 17:51:37,918 INFO L413 NwaCegarLoop]: 1952 mSDtfsCounter, 6617 mSDsluCounter, 13334 mSDsCounter, 0 mSdLazyCounter, 23541 mSolverCounterSat, 4576 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6618 SdHoareTripleChecker+Valid, 15286 SdHoareTripleChecker+Invalid, 28121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4576 IncrementalHoareTripleChecker+Valid, 23541 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.0s IncrementalHoareTripleChecker+Time [2022-12-13 17:51:37,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6618 Valid, 15286 Invalid, 28121 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4576 Valid, 23541 Invalid, 4 Unknown, 0 Unchecked, 33.0s Time] [2022-12-13 17:51:37,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19386 states. [2022-12-13 17:51:38,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19386 to 15664. [2022-12-13 17:51:38,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15664 states, 11909 states have (on average 1.4252246200352674) internal successors, (16973), 12005 states have internal predecessors, (16973), 3177 states have call successors, (3177), 576 states have call predecessors, (3177), 577 states have return successors, (3177), 3155 states have call predecessors, (3177), 3169 states have call successors, (3177) [2022-12-13 17:51:38,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15664 states to 15664 states and 23327 transitions. [2022-12-13 17:51:38,824 INFO L78 Accepts]: Start accepts. Automaton has 15664 states and 23327 transitions. Word has length 195 [2022-12-13 17:51:38,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:51:38,825 INFO L495 AbstractCegarLoop]: Abstraction has 15664 states and 23327 transitions. [2022-12-13 17:51:38,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.727272727272727) internal successors, (129), 7 states have internal predecessors, (129), 5 states have call successors, (28), 6 states have call predecessors, (28), 1 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) [2022-12-13 17:51:38,825 INFO L276 IsEmpty]: Start isEmpty. Operand 15664 states and 23327 transitions. [2022-12-13 17:51:38,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-12-13 17:51:38,843 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:51:38,844 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:51:38,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-13 17:51:38,844 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:51:38,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:51:38,844 INFO L85 PathProgramCache]: Analyzing trace with hash 2109716016, now seen corresponding path program 1 times [2022-12-13 17:51:38,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:51:38,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415063091] [2022-12-13 17:51:38,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:51:38,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:51:38,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:51:39,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 17:51:39,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:51:39,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 17:51:39,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:51:39,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 17:51:39,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:51:39,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:51:39,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:51:39,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 17:51:39,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:51:39,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 17:51:39,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:51:39,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-12-13 17:51:39,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:51:39,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-12-13 17:51:39,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:51:39,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 17:51:39,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:51:39,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-12-13 17:51:39,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:51:39,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-12-13 17:51:39,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:51:39,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-12-13 17:51:39,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:51:39,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 17:51:39,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:51:39,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-12-13 17:51:39,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:51:39,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-12-13 17:51:39,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:51:39,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-12-13 17:51:39,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:51:39,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-12-13 17:51:39,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:51:39,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:51:39,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:51:39,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 17:51:39,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:51:39,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-12-13 17:51:39,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:51:39,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-12-13 17:51:39,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:51:39,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-12-13 17:51:39,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:51:39,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 17:51:39,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:51:39,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 17:51:39,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:51:39,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-12-13 17:51:39,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:51:39,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 17:51:39,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:51:39,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2022-12-13 17:51:39,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:51:39,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-12-13 17:51:39,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:51:39,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-12-13 17:51:39,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:51:39,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-12-13 17:51:39,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:51:39,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-12-13 17:51:39,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:51:39,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-12-13 17:51:39,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:51:39,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2022-12-13 17:51:39,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:51:39,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-12-13 17:51:39,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:51:39,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-12-13 17:51:39,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:51:39,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2022-12-13 17:51:39,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:51:39,240 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-12-13 17:51:39,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:51:39,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415063091] [2022-12-13 17:51:39,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415063091] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:51:39,241 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:51:39,241 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 17:51:39,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558720136] [2022-12-13 17:51:39,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:51:39,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 17:51:39,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:51:39,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 17:51:39,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-13 17:51:39,243 INFO L87 Difference]: Start difference. First operand 15664 states and 23327 transitions. Second operand has 8 states, 8 states have (on average 21.125) internal successors, (169), 3 states have internal predecessors, (169), 2 states have call successors, (38), 7 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-12-13 17:51:41,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 17:51:50,314 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 17:51:55,535 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 17:51:57,324 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 17:51:59,624 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 17:52:00,892 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 17:52:11,022 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-13 17:52:15,056 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 17:52:20,712 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 17:52:23,472 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 17:52:27,046 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 [] [2022-12-13 17:52:27,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:52:27,764 INFO L93 Difference]: Finished difference Result 39432 states and 61153 transitions. [2022-12-13 17:52:27,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 17:52:27,765 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 21.125) internal successors, (169), 3 states have internal predecessors, (169), 2 states have call successors, (38), 7 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 263 [2022-12-13 17:52:27,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:52:27,851 INFO L225 Difference]: With dead ends: 39432 [2022-12-13 17:52:27,851 INFO L226 Difference]: Without dead ends: 23824 [2022-12-13 17:52:27,890 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2022-12-13 17:52:27,890 INFO L413 NwaCegarLoop]: 3402 mSDtfsCounter, 7224 mSDsluCounter, 12397 mSDsCounter, 0 mSdLazyCounter, 16062 mSolverCounterSat, 3697 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7460 SdHoareTripleChecker+Valid, 15799 SdHoareTripleChecker+Invalid, 19765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3697 IncrementalHoareTripleChecker+Valid, 16062 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46.2s IncrementalHoareTripleChecker+Time [2022-12-13 17:52:27,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7460 Valid, 15799 Invalid, 19765 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3697 Valid, 16062 Invalid, 6 Unknown, 0 Unchecked, 46.2s Time] [2022-12-13 17:52:27,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23824 states. [2022-12-13 17:52:28,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23824 to 15680. [2022-12-13 17:52:28,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15680 states, 11925 states have (on average 1.4246540880503145) internal successors, (16989), 12021 states have internal predecessors, (16989), 3177 states have call successors, (3177), 576 states have call predecessors, (3177), 577 states have return successors, (3177), 3155 states have call predecessors, (3177), 3169 states have call successors, (3177) [2022-12-13 17:52:28,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15680 states to 15680 states and 23343 transitions. [2022-12-13 17:52:28,888 INFO L78 Accepts]: Start accepts. Automaton has 15680 states and 23343 transitions. Word has length 263 [2022-12-13 17:52:28,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:52:28,888 INFO L495 AbstractCegarLoop]: Abstraction has 15680 states and 23343 transitions. [2022-12-13 17:52:28,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.125) internal successors, (169), 3 states have internal predecessors, (169), 2 states have call successors, (38), 7 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-12-13 17:52:28,889 INFO L276 IsEmpty]: Start isEmpty. Operand 15680 states and 23343 transitions. [2022-12-13 17:52:28,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2022-12-13 17:52:28,908 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:52:28,908 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:52:28,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-13 17:52:28,908 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:52:28,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:52:28,909 INFO L85 PathProgramCache]: Analyzing trace with hash -1526650124, now seen corresponding path program 1 times [2022-12-13 17:52:28,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:52:28,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622463478] [2022-12-13 17:52:28,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:52:28,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:52:28,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:29,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 17:52:29,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:29,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 17:52:29,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:29,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 17:52:29,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:29,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:52:29,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:29,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 17:52:29,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:29,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 17:52:29,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:29,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-12-13 17:52:29,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:29,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-12-13 17:52:29,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:29,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 17:52:29,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:29,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-12-13 17:52:29,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:29,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-12-13 17:52:29,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:29,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-12-13 17:52:29,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:29,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 17:52:29,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:29,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-12-13 17:52:29,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:29,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-12-13 17:52:29,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:29,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-12-13 17:52:29,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:29,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-12-13 17:52:29,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:29,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:52:29,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:29,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 17:52:29,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:29,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-12-13 17:52:29,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:29,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-12-13 17:52:29,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:29,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-12-13 17:52:29,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:29,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 17:52:29,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:29,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 17:52:29,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:29,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-12-13 17:52:29,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:29,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 17:52:29,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:29,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-12-13 17:52:29,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:29,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-12-13 17:52:29,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:29,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-12-13 17:52:29,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:29,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-12-13 17:52:29,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:29,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-12-13 17:52:29,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:29,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2022-12-13 17:52:29,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:29,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-12-13 17:52:29,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:29,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-12-13 17:52:29,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:29,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2022-12-13 17:52:29,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:29,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2022-12-13 17:52:29,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:29,326 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-12-13 17:52:29,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:52:29,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622463478] [2022-12-13 17:52:29,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622463478] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 17:52:29,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1184232527] [2022-12-13 17:52:29,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:52:29,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:52:29,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:52:29,328 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:52:29,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 17:52:30,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:30,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 3538 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 17:52:30,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:52:30,169 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-12-13 17:52:30,170 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:52:30,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1184232527] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:52:30,170 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 17:52:30,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-12-13 17:52:30,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470798632] [2022-12-13 17:52:30,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:52:30,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 17:52:30,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:52:30,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 17:52:30,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-12-13 17:52:30,172 INFO L87 Difference]: Start difference. First operand 15680 states and 23343 transitions. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-12-13 17:52:31,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:52:31,046 INFO L93 Difference]: Finished difference Result 31312 states and 47599 transitions. [2022-12-13 17:52:31,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 17:52:31,047 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 265 [2022-12-13 17:52:31,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:52:31,096 INFO L225 Difference]: With dead ends: 31312 [2022-12-13 17:52:31,096 INFO L226 Difference]: Without dead ends: 15688 [2022-12-13 17:52:31,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 340 GetRequests, 332 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-12-13 17:52:31,138 INFO L413 NwaCegarLoop]: 4499 mSDtfsCounter, 0 mSDsluCounter, 4492 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8991 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 17:52:31,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8991 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 17:52:31,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15688 states. [2022-12-13 17:52:31,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15688 to 15680. [2022-12-13 17:52:31,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15680 states, 11925 states have (on average 1.4226415094339622) internal successors, (16965), 12021 states have internal predecessors, (16965), 3177 states have call successors, (3177), 576 states have call predecessors, (3177), 577 states have return successors, (3177), 3155 states have call predecessors, (3177), 3169 states have call successors, (3177) [2022-12-13 17:52:32,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15680 states to 15680 states and 23319 transitions. [2022-12-13 17:52:32,009 INFO L78 Accepts]: Start accepts. Automaton has 15680 states and 23319 transitions. Word has length 265 [2022-12-13 17:52:32,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:52:32,010 INFO L495 AbstractCegarLoop]: Abstraction has 15680 states and 23319 transitions. [2022-12-13 17:52:32,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-12-13 17:52:32,010 INFO L276 IsEmpty]: Start isEmpty. Operand 15680 states and 23319 transitions. [2022-12-13 17:52:32,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-12-13 17:52:32,027 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:52:32,027 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:52:32,039 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 17:52:32,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-12-13 17:52:32,229 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:52:32,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:52:32,230 INFO L85 PathProgramCache]: Analyzing trace with hash 645187483, now seen corresponding path program 1 times [2022-12-13 17:52:32,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:52:32,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780764973] [2022-12-13 17:52:32,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:52:32,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:52:32,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:32,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 17:52:32,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:32,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 17:52:32,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:32,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 17:52:32,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:32,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:52:32,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:32,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 17:52:32,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:32,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 17:52:32,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:32,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-12-13 17:52:32,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:32,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-12-13 17:52:32,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:32,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 17:52:32,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:32,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-12-13 17:52:32,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:32,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-12-13 17:52:32,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:32,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-12-13 17:52:32,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:32,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 17:52:32,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:32,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-12-13 17:52:32,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:32,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-12-13 17:52:32,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:32,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-12-13 17:52:32,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:32,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-12-13 17:52:32,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:32,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:52:32,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:32,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 17:52:32,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:32,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-12-13 17:52:32,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:32,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-12-13 17:52:32,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:32,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-12-13 17:52:32,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:32,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 17:52:32,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:32,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 17:52:32,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:32,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 17:52:32,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:32,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 17:52:32,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:32,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-12-13 17:52:32,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:32,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-12-13 17:52:32,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:32,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-12-13 17:52:32,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:32,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-12-13 17:52:32,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:32,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2022-12-13 17:52:32,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:32,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-12-13 17:52:32,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:32,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-12-13 17:52:32,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:32,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-12-13 17:52:32,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:32,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-12-13 17:52:32,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:32,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-12-13 17:52:32,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:32,615 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-12-13 17:52:32,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:52:32,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780764973] [2022-12-13 17:52:32,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780764973] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 17:52:32,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [169225141] [2022-12-13 17:52:32,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:52:32,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:52:32,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:52:32,616 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:52:32,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 17:52:33,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:33,422 INFO L263 TraceCheckSpWp]: Trace formula consists of 3544 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 17:52:33,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:52:33,460 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 28 proven. 1 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-12-13 17:52:33,460 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 17:52:33,564 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-12-13 17:52:33,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [169225141] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 17:52:33,564 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 17:52:33,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 4, 4] total 12 [2022-12-13 17:52:33,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997355617] [2022-12-13 17:52:33,565 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 17:52:33,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 17:52:33,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:52:33,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 17:52:33,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2022-12-13 17:52:33,566 INFO L87 Difference]: Start difference. First operand 15680 states and 23319 transitions. Second operand has 12 states, 12 states have (on average 20.083333333333332) internal successors, (241), 7 states have internal predecessors, (241), 2 states have call successors, (61), 7 states have call predecessors, (61), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-12-13 17:52:43,375 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 [] [2022-12-13 17:52:50,891 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 17:53:00,484 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-13 17:53:04,052 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 17:53:06,440 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 17:53:09,894 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 17:53:12,602 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 17:53:16,909 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 [] [2022-12-13 17:53:20,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:53:20,156 INFO L93 Difference]: Finished difference Result 53132 states and 84116 transitions. [2022-12-13 17:53:20,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 17:53:20,157 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 20.083333333333332) internal successors, (241), 7 states have internal predecessors, (241), 2 states have call successors, (61), 7 states have call predecessors, (61), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 268 [2022-12-13 17:53:20,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:53:20,279 INFO L225 Difference]: With dead ends: 53132 [2022-12-13 17:53:20,279 INFO L226 Difference]: Without dead ends: 37508 [2022-12-13 17:53:20,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 621 GetRequests, 605 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2022-12-13 17:53:20,324 INFO L413 NwaCegarLoop]: 4009 mSDtfsCounter, 13707 mSDsluCounter, 17986 mSDsCounter, 0 mSdLazyCounter, 22468 mSolverCounterSat, 5044 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14646 SdHoareTripleChecker+Valid, 21995 SdHoareTripleChecker+Invalid, 27518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 5044 IncrementalHoareTripleChecker+Valid, 22468 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.4s IncrementalHoareTripleChecker+Time [2022-12-13 17:53:20,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14646 Valid, 21995 Invalid, 27518 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [5044 Valid, 22468 Invalid, 6 Unknown, 0 Unchecked, 43.4s Time] [2022-12-13 17:53:20,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37508 states. [2022-12-13 17:53:21,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37508 to 15968. [2022-12-13 17:53:21,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15968 states, 12165 states have (on average 1.4212083847102344) internal successors, (17289), 12261 states have internal predecessors, (17289), 3225 states have call successors, (3225), 576 states have call predecessors, (3225), 577 states have return successors, (3225), 3203 states have call predecessors, (3225), 3217 states have call successors, (3225) [2022-12-13 17:53:21,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15968 states to 15968 states and 23739 transitions. [2022-12-13 17:53:21,638 INFO L78 Accepts]: Start accepts. Automaton has 15968 states and 23739 transitions. Word has length 268 [2022-12-13 17:53:21,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:53:21,638 INFO L495 AbstractCegarLoop]: Abstraction has 15968 states and 23739 transitions. [2022-12-13 17:53:21,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 20.083333333333332) internal successors, (241), 7 states have internal predecessors, (241), 2 states have call successors, (61), 7 states have call predecessors, (61), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-12-13 17:53:21,638 INFO L276 IsEmpty]: Start isEmpty. Operand 15968 states and 23739 transitions. [2022-12-13 17:53:21,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-12-13 17:53:21,657 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:53:21,657 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:53:21,668 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-13 17:53:21,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-12-13 17:53:21,859 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:53:21,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:53:21,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1344781263, now seen corresponding path program 2 times [2022-12-13 17:53:21,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:53:21,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822862174] [2022-12-13 17:53:21,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:53:21,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:53:21,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:53:22,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 17:53:22,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:53:22,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 17:53:22,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:53:22,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 17:53:22,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:53:22,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:53:22,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:53:22,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 17:53:22,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:53:22,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 17:53:22,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:53:22,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-12-13 17:53:22,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:53:22,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-12-13 17:53:22,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:53:22,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 17:53:22,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:53:22,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-12-13 17:53:22,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:53:22,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-12-13 17:53:22,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:53:22,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-12-13 17:53:22,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:53:22,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 17:53:22,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:53:22,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-12-13 17:53:22,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:53:22,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-12-13 17:53:22,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:53:22,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-12-13 17:53:22,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:53:22,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-12-13 17:53:22,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:53:22,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:53:22,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:53:22,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 17:53:22,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:53:22,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-12-13 17:53:22,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:53:22,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-12-13 17:53:22,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:53:22,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-12-13 17:53:22,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:53:22,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 17:53:22,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:53:22,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 17:53:22,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:53:22,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 17:53:22,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:53:22,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 17:53:22,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:53:22,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-12-13 17:53:22,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:53:22,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-12-13 17:53:22,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:53:22,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-12-13 17:53:22,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:53:22,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2022-12-13 17:53:22,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:53:22,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-12-13 17:53:22,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:53:22,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-12-13 17:53:22,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:53:22,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-12-13 17:53:22,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:53:22,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-12-13 17:53:22,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:53:22,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-12-13 17:53:22,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:53:22,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-12-13 17:53:22,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:53:22,387 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-12-13 17:53:22,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:53:22,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822862174] [2022-12-13 17:53:22,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822862174] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:53:22,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:53:22,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 17:53:22,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930619200] [2022-12-13 17:53:22,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:53:22,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 17:53:22,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:53:22,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 17:53:22,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-12-13 17:53:22,389 INFO L87 Difference]: Start difference. First operand 15968 states and 23739 transitions. Second operand has 9 states, 9 states have (on average 19.333333333333332) internal successors, (174), 4 states have internal predecessors, (174), 3 states have call successors, (38), 7 states have call predecessors, (38), 2 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2022-12-13 17:53:30,649 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 [] [2022-12-13 17:53:37,238 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 17:53:45,461 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-13 17:53:49,166 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 [] [2022-12-13 17:53:50,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:53:50,049 INFO L93 Difference]: Finished difference Result 36164 states and 56890 transitions. [2022-12-13 17:53:50,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 17:53:50,050 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 19.333333333333332) internal successors, (174), 4 states have internal predecessors, (174), 3 states have call successors, (38), 7 states have call predecessors, (38), 2 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) Word has length 274 [2022-12-13 17:53:50,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:53:50,137 INFO L225 Difference]: With dead ends: 36164 [2022-12-13 17:53:50,137 INFO L226 Difference]: Without dead ends: 19876 [2022-12-13 17:53:50,194 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2022-12-13 17:53:50,194 INFO L413 NwaCegarLoop]: 1860 mSDtfsCounter, 6843 mSDsluCounter, 6592 mSDsCounter, 0 mSdLazyCounter, 11610 mSolverCounterSat, 4666 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6843 SdHoareTripleChecker+Valid, 8452 SdHoareTripleChecker+Invalid, 16280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4666 IncrementalHoareTripleChecker+Valid, 11610 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.6s IncrementalHoareTripleChecker+Time [2022-12-13 17:53:50,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6843 Valid, 8452 Invalid, 16280 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4666 Valid, 11610 Invalid, 4 Unknown, 0 Unchecked, 25.6s Time] [2022-12-13 17:53:50,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19876 states. [2022-12-13 17:53:51,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19876 to 16212. [2022-12-13 17:53:51,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16212 states, 12357 states have (on average 1.4195193008011653) internal successors, (17541), 12461 states have internal predecessors, (17541), 3273 states have call successors, (3273), 576 states have call predecessors, (3273), 581 states have return successors, (3277), 3251 states have call predecessors, (3277), 3265 states have call successors, (3277) [2022-12-13 17:53:51,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16212 states to 16212 states and 24091 transitions. [2022-12-13 17:53:51,306 INFO L78 Accepts]: Start accepts. Automaton has 16212 states and 24091 transitions. Word has length 274 [2022-12-13 17:53:51,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:53:51,307 INFO L495 AbstractCegarLoop]: Abstraction has 16212 states and 24091 transitions. [2022-12-13 17:53:51,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 19.333333333333332) internal successors, (174), 4 states have internal predecessors, (174), 3 states have call successors, (38), 7 states have call predecessors, (38), 2 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2022-12-13 17:53:51,307 INFO L276 IsEmpty]: Start isEmpty. Operand 16212 states and 24091 transitions. [2022-12-13 17:53:51,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2022-12-13 17:53:51,327 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:53:51,327 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:53:51,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-13 17:53:51,327 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:53:51,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:53:51,327 INFO L85 PathProgramCache]: Analyzing trace with hash 1409044751, now seen corresponding path program 1 times [2022-12-13 17:53:51,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:53:51,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723935419] [2022-12-13 17:53:51,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:53:51,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:53:51,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:53:51,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 17:53:51,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:53:51,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 17:53:51,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:53:51,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 17:53:51,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:53:51,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:53:51,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:53:51,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 17:53:51,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:53:51,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 17:53:51,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:53:51,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-12-13 17:53:51,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:53:51,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-12-13 17:53:51,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:53:51,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 17:53:51,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:53:51,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-12-13 17:53:51,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:53:51,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-12-13 17:53:51,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:53:51,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-12-13 17:53:51,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:53:51,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 17:53:51,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:53:51,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-12-13 17:53:51,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:53:51,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-12-13 17:53:51,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:53:51,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-12-13 17:53:51,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:53:51,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-12-13 17:53:51,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:53:51,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:53:51,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:53:51,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 17:53:51,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:53:51,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-12-13 17:53:51,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:53:51,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-12-13 17:53:51,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:53:51,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-12-13 17:53:51,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:53:51,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 17:53:51,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:53:51,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-12-13 17:53:51,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:53:51,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-12-13 17:53:51,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:53:51,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-12-13 17:53:51,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:53:51,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-12-13 17:53:51,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:53:51,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-12-13 17:53:51,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:53:51,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-12-13 17:53:51,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:53:51,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-12-13 17:53:51,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:53:51,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-12-13 17:53:51,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:53:51,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-12-13 17:53:51,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:53:51,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2022-12-13 17:53:51,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:53:51,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2022-12-13 17:53:51,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:53:51,797 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2022-12-13 17:53:51,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:53:51,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723935419] [2022-12-13 17:53:51,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723935419] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:53:51,797 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:53:51,798 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 17:53:51,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930494848] [2022-12-13 17:53:51,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:53:51,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 17:53:51,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:53:51,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 17:53:51,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-12-13 17:53:51,799 INFO L87 Difference]: Start difference. First operand 16212 states and 24091 transitions. Second operand has 9 states, 9 states have (on average 19.77777777777778) internal successors, (178), 4 states have internal predecessors, (178), 3 states have call successors, (36), 7 states have call predecessors, (36), 2 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2022-12-13 17:53:52,959 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 17:54:01,465 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 17:54:07,291 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 17:54:15,689 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-13 17:54:19,518 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 17:54:20,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:54:20,410 INFO L93 Difference]: Finished difference Result 36644 states and 57614 transitions. [2022-12-13 17:54:20,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 17:54:20,411 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 19.77777777777778) internal successors, (178), 4 states have internal predecessors, (178), 3 states have call successors, (36), 7 states have call predecessors, (36), 2 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 273 [2022-12-13 17:54:20,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:54:20,494 INFO L225 Difference]: With dead ends: 36644 [2022-12-13 17:54:20,495 INFO L226 Difference]: Without dead ends: 20284 [2022-12-13 17:54:20,554 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=118, Invalid=302, Unknown=0, NotChecked=0, Total=420 [2022-12-13 17:54:20,554 INFO L413 NwaCegarLoop]: 1847 mSDtfsCounter, 7259 mSDsluCounter, 8203 mSDsCounter, 0 mSdLazyCounter, 14276 mSolverCounterSat, 5315 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7259 SdHoareTripleChecker+Valid, 10050 SdHoareTripleChecker+Invalid, 19594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5315 IncrementalHoareTripleChecker+Valid, 14276 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.4s IncrementalHoareTripleChecker+Time [2022-12-13 17:54:20,555 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7259 Valid, 10050 Invalid, 19594 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5315 Valid, 14276 Invalid, 3 Unknown, 0 Unchecked, 26.4s Time] [2022-12-13 17:54:20,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20284 states. [2022-12-13 17:54:21,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20284 to 16400. [2022-12-13 17:54:21,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16400 states, 12509 states have (on average 1.4176193140938524) internal successors, (17733), 12617 states have internal predecessors, (17733), 3309 states have call successors, (3309), 576 states have call predecessors, (3309), 581 states have return successors, (3313), 3287 states have call predecessors, (3313), 3301 states have call successors, (3313) [2022-12-13 17:54:21,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16400 states to 16400 states and 24355 transitions. [2022-12-13 17:54:21,700 INFO L78 Accepts]: Start accepts. Automaton has 16400 states and 24355 transitions. Word has length 273 [2022-12-13 17:54:21,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:54:21,700 INFO L495 AbstractCegarLoop]: Abstraction has 16400 states and 24355 transitions. [2022-12-13 17:54:21,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 19.77777777777778) internal successors, (178), 4 states have internal predecessors, (178), 3 states have call successors, (36), 7 states have call predecessors, (36), 2 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2022-12-13 17:54:21,701 INFO L276 IsEmpty]: Start isEmpty. Operand 16400 states and 24355 transitions. [2022-12-13 17:54:21,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2022-12-13 17:54:21,718 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:54:21,718 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:54:21,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-13 17:54:21,718 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:54:21,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:54:21,719 INFO L85 PathProgramCache]: Analyzing trace with hash -238318191, now seen corresponding path program 1 times [2022-12-13 17:54:21,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:54:21,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833724094] [2022-12-13 17:54:21,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:54:21,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:54:21,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:54:22,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 17:54:22,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:54:22,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 17:54:22,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:54:22,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 17:54:22,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:54:22,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:54:22,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:54:22,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 17:54:22,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:54:22,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 17:54:22,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:54:22,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-12-13 17:54:22,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:54:22,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-12-13 17:54:22,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:54:22,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 17:54:22,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:54:22,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-12-13 17:54:22,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:54:22,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-12-13 17:54:22,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:54:22,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-12-13 17:54:22,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:54:22,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 17:54:22,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:54:22,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-12-13 17:54:22,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:54:22,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-12-13 17:54:22,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:54:22,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-12-13 17:54:22,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:54:22,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-12-13 17:54:22,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:54:22,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:54:22,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:54:22,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 17:54:22,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:54:22,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-12-13 17:54:22,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:54:22,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-12-13 17:54:22,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:54:22,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-12-13 17:54:22,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:54:22,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 17:54:22,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:54:22,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-12-13 17:54:22,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:54:22,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-12-13 17:54:22,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:54:22,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-12-13 17:54:22,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:54:22,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-12-13 17:54:22,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:54:22,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-12-13 17:54:22,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:54:22,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-12-13 17:54:22,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:54:22,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-12-13 17:54:22,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:54:22,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-12-13 17:54:22,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:54:22,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-12-13 17:54:22,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:54:22,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2022-12-13 17:54:22,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:54:22,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2022-12-13 17:54:22,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:54:22,282 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2022-12-13 17:54:22,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:54:22,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833724094] [2022-12-13 17:54:22,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833724094] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:54:22,282 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:54:22,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 17:54:22,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579441597] [2022-12-13 17:54:22,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:54:22,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 17:54:22,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:54:22,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 17:54:22,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-12-13 17:54:22,284 INFO L87 Difference]: Start difference. First operand 16400 states and 24355 transitions. Second operand has 11 states, 11 states have (on average 15.727272727272727) internal successors, (173), 5 states have internal predecessors, (173), 2 states have call successors, (36), 7 states have call predecessors, (36), 2 states have return successors, (34), 3 states have call predecessors, (34), 2 states have call successors, (34) [2022-12-13 17:54:33,484 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 17:54:51,276 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-13 17:54:53,641 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 17:54:58,770 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 17:55:03,704 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 [] [2022-12-13 17:55:03,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:55:03,867 INFO L93 Difference]: Finished difference Result 27359 states and 43116 transitions. [2022-12-13 17:55:03,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 17:55:03,867 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.727272727272727) internal successors, (173), 5 states have internal predecessors, (173), 2 states have call successors, (36), 7 states have call predecessors, (36), 2 states have return successors, (34), 3 states have call predecessors, (34), 2 states have call successors, (34) Word has length 273 [2022-12-13 17:55:03,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:55:03,990 INFO L225 Difference]: With dead ends: 27359 [2022-12-13 17:55:03,991 INFO L226 Difference]: Without dead ends: 24907 [2022-12-13 17:55:04,013 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-12-13 17:55:04,014 INFO L413 NwaCegarLoop]: 3523 mSDtfsCounter, 8983 mSDsluCounter, 19131 mSDsCounter, 0 mSdLazyCounter, 22628 mSolverCounterSat, 4928 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8984 SdHoareTripleChecker+Valid, 22654 SdHoareTripleChecker+Invalid, 27561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 4928 IncrementalHoareTripleChecker+Valid, 22628 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.1s IncrementalHoareTripleChecker+Time [2022-12-13 17:55:04,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8984 Valid, 22654 Invalid, 27561 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [4928 Valid, 22628 Invalid, 5 Unknown, 0 Unchecked, 39.1s Time] [2022-12-13 17:55:04,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24907 states. [2022-12-13 17:55:05,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24907 to 16211. [2022-12-13 17:55:05,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16211 states, 12349 states have (on average 1.4155802089237994) internal successors, (17481), 12455 states have internal predecessors, (17481), 3282 states have call successors, (3282), 574 states have call predecessors, (3282), 579 states have return successors, (3287), 3262 states have call predecessors, (3287), 3275 states have call successors, (3287) [2022-12-13 17:55:05,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16211 states to 16211 states and 24050 transitions. [2022-12-13 17:55:05,300 INFO L78 Accepts]: Start accepts. Automaton has 16211 states and 24050 transitions. Word has length 273 [2022-12-13 17:55:05,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:55:05,300 INFO L495 AbstractCegarLoop]: Abstraction has 16211 states and 24050 transitions. [2022-12-13 17:55:05,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.727272727272727) internal successors, (173), 5 states have internal predecessors, (173), 2 states have call successors, (36), 7 states have call predecessors, (36), 2 states have return successors, (34), 3 states have call predecessors, (34), 2 states have call successors, (34) [2022-12-13 17:55:05,300 INFO L276 IsEmpty]: Start isEmpty. Operand 16211 states and 24050 transitions. [2022-12-13 17:55:05,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-12-13 17:55:05,318 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:55:05,318 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:55:05,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-13 17:55:05,319 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:55:05,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:55:05,319 INFO L85 PathProgramCache]: Analyzing trace with hash -178625818, now seen corresponding path program 1 times [2022-12-13 17:55:05,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:55:05,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161664103] [2022-12-13 17:55:05,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:55:05,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:55:05,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:05,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 17:55:05,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:05,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 17:55:05,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:05,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 17:55:05,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:05,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:55:05,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:05,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 17:55:05,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:05,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 17:55:05,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:05,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-12-13 17:55:05,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:05,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-12-13 17:55:05,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:05,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 17:55:05,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:05,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-12-13 17:55:05,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:05,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-12-13 17:55:05,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:05,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-12-13 17:55:05,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:05,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 17:55:05,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:05,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-12-13 17:55:05,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:05,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-12-13 17:55:05,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:05,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-12-13 17:55:05,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:05,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-12-13 17:55:05,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:05,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:55:05,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:05,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 17:55:05,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:05,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-12-13 17:55:05,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:05,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-12-13 17:55:05,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:05,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-12-13 17:55:05,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:05,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 17:55:05,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:05,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-12-13 17:55:05,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:05,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-12-13 17:55:05,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:05,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-12-13 17:55:05,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:05,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-12-13 17:55:05,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:05,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-12-13 17:55:05,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:05,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-12-13 17:55:05,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:05,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-12-13 17:55:05,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:05,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-12-13 17:55:05,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:05,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-12-13 17:55:05,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:05,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-12-13 17:55:05,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:05,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-12-13 17:55:05,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:05,868 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2022-12-13 17:55:05,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:55:05,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161664103] [2022-12-13 17:55:05,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161664103] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 17:55:05,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [395032245] [2022-12-13 17:55:05,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:55:05,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:55:05,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:55:05,870 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:55:05,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 17:55:06,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:06,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 3745 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 17:55:06,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:55:06,980 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-12-13 17:55:06,980 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 17:55:07,205 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2022-12-13 17:55:07,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [395032245] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 17:55:07,206 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 17:55:07,206 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 4, 4] total 10 [2022-12-13 17:55:07,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719883655] [2022-12-13 17:55:07,206 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 17:55:07,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 17:55:07,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:55:07,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 17:55:07,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-12-13 17:55:07,209 INFO L87 Difference]: Start difference. First operand 16211 states and 24050 transitions. Second operand has 10 states, 10 states have (on average 26.9) internal successors, (269), 5 states have internal predecessors, (269), 4 states have call successors, (68), 7 states have call predecessors, (68), 2 states have return successors, (63), 4 states have call predecessors, (63), 4 states have call successors, (63) [2022-12-13 17:55:19,057 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 [] [2022-12-13 17:55:21,065 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 17:55:29,650 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 17:55:31,658 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 17:55:42,264 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 17:55:44,273 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 17:55:47,715 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-13 17:55:49,550 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-13 17:55:54,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 17:55:56,710 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 [] [2022-12-13 17:55:58,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:55:58,412 INFO L93 Difference]: Finished difference Result 39068 states and 60217 transitions. [2022-12-13 17:55:58,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 17:55:58,413 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 26.9) internal successors, (269), 5 states have internal predecessors, (269), 4 states have call successors, (68), 7 states have call predecessors, (68), 2 states have return successors, (63), 4 states have call predecessors, (63), 4 states have call successors, (63) Word has length 274 [2022-12-13 17:55:58,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:55:58,514 INFO L225 Difference]: With dead ends: 39068 [2022-12-13 17:55:58,514 INFO L226 Difference]: Without dead ends: 22913 [2022-12-13 17:55:58,574 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 629 GetRequests, 613 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2022-12-13 17:55:58,575 INFO L413 NwaCegarLoop]: 2208 mSDtfsCounter, 8498 mSDsluCounter, 10061 mSDsCounter, 0 mSdLazyCounter, 21920 mSolverCounterSat, 4291 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8958 SdHoareTripleChecker+Valid, 12269 SdHoareTripleChecker+Invalid, 26220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4291 IncrementalHoareTripleChecker+Valid, 21920 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48.3s IncrementalHoareTripleChecker+Time [2022-12-13 17:55:58,575 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8958 Valid, 12269 Invalid, 26220 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4291 Valid, 21920 Invalid, 9 Unknown, 0 Unchecked, 48.3s Time] [2022-12-13 17:55:58,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22913 states. [2022-12-13 17:55:59,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22913 to 19035. [2022-12-13 17:55:59,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19035 states, 14689 states have (on average 1.433793995506842) internal successors, (21061), 14815 states have internal predecessors, (21061), 3766 states have call successors, (3766), 574 states have call predecessors, (3766), 579 states have return successors, (3775), 3742 states have call predecessors, (3775), 3759 states have call successors, (3775) [2022-12-13 17:56:00,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19035 states to 19035 states and 28602 transitions. [2022-12-13 17:56:00,041 INFO L78 Accepts]: Start accepts. Automaton has 19035 states and 28602 transitions. Word has length 274 [2022-12-13 17:56:00,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:56:00,042 INFO L495 AbstractCegarLoop]: Abstraction has 19035 states and 28602 transitions. [2022-12-13 17:56:00,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 26.9) internal successors, (269), 5 states have internal predecessors, (269), 4 states have call successors, (68), 7 states have call predecessors, (68), 2 states have return successors, (63), 4 states have call predecessors, (63), 4 states have call successors, (63) [2022-12-13 17:56:00,042 INFO L276 IsEmpty]: Start isEmpty. Operand 19035 states and 28602 transitions. [2022-12-13 17:56:00,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2022-12-13 17:56:00,103 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:56:00,103 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:56:00,114 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-13 17:56:00,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:56:00,304 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:56:00,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:56:00,304 INFO L85 PathProgramCache]: Analyzing trace with hash 866546748, now seen corresponding path program 1 times [2022-12-13 17:56:00,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:56:00,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691483088] [2022-12-13 17:56:00,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:56:00,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:56:00,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:00,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 17:56:00,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:00,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 17:56:00,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:00,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 17:56:00,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:00,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:56:00,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:00,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 17:56:00,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:00,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 17:56:00,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:00,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-12-13 17:56:00,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:00,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-12-13 17:56:00,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:00,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 17:56:00,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:00,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-12-13 17:56:00,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:00,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-12-13 17:56:00,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:00,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-12-13 17:56:00,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:00,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 17:56:00,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:00,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-12-13 17:56:00,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:00,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-12-13 17:56:00,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:00,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-12-13 17:56:00,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:00,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-12-13 17:56:00,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:00,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:56:00,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:00,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 17:56:00,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:00,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-12-13 17:56:00,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:00,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-12-13 17:56:00,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:00,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-12-13 17:56:00,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:00,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 17:56:00,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:00,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-12-13 17:56:00,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:00,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-12-13 17:56:00,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:00,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-12-13 17:56:00,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:00,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-12-13 17:56:00,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:00,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-12-13 17:56:00,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:00,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-12-13 17:56:00,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:00,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-12-13 17:56:00,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:00,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-12-13 17:56:00,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:00,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-12-13 17:56:00,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:00,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2022-12-13 17:56:00,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:00,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-12-13 17:56:00,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:00,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2022-12-13 17:56:00,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:00,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2022-12-13 17:56:00,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:00,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-12-13 17:56:00,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:00,803 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2022-12-13 17:56:00,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:56:00,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691483088] [2022-12-13 17:56:00,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691483088] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:56:00,803 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:56:00,803 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 17:56:00,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251750556] [2022-12-13 17:56:00,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:56:00,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 17:56:00,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:56:00,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 17:56:00,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-12-13 17:56:00,805 INFO L87 Difference]: Start difference. First operand 19035 states and 28602 transitions. Second operand has 11 states, 11 states have (on average 16.454545454545453) internal successors, (181), 5 states have internal predecessors, (181), 2 states have call successors, (39), 7 states have call predecessors, (39), 2 states have return successors, (37), 3 states have call predecessors, (37), 2 states have call successors, (37) [2022-12-13 17:56:11,062 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 [] [2022-12-13 17:56:16,876 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 17:56:19,141 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 17:56:30,229 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-13 17:56:32,986 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 17:56:37,727 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 17:56:40,067 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 17:56:43,832 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 [] [2022-12-13 17:56:44,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:56:44,061 INFO L93 Difference]: Finished difference Result 37417 states and 59152 transitions. [2022-12-13 17:56:44,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 17:56:44,062 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 16.454545454545453) internal successors, (181), 5 states have internal predecessors, (181), 2 states have call successors, (39), 7 states have call predecessors, (39), 2 states have return successors, (37), 3 states have call predecessors, (37), 2 states have call successors, (37) Word has length 292 [2022-12-13 17:56:44,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:56:44,180 INFO L225 Difference]: With dead ends: 37417 [2022-12-13 17:56:44,180 INFO L226 Difference]: Without dead ends: 30549 [2022-12-13 17:56:44,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2022-12-13 17:56:44,219 INFO L413 NwaCegarLoop]: 3513 mSDtfsCounter, 9750 mSDsluCounter, 18864 mSDsCounter, 0 mSdLazyCounter, 22129 mSolverCounterSat, 5742 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9751 SdHoareTripleChecker+Valid, 22377 SdHoareTripleChecker+Invalid, 27875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 5742 IncrementalHoareTripleChecker+Valid, 22129 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.2s IncrementalHoareTripleChecker+Time [2022-12-13 17:56:44,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9751 Valid, 22377 Invalid, 27875 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [5742 Valid, 22129 Invalid, 4 Unknown, 0 Unchecked, 40.2s Time] [2022-12-13 17:56:44,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30549 states. [2022-12-13 17:56:45,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30549 to 19029. [2022-12-13 17:56:45,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19029 states, 14685 states have (on average 1.4336397684712292) internal successors, (21053), 14811 states have internal predecessors, (21053), 3764 states have call successors, (3764), 574 states have call predecessors, (3764), 579 states have return successors, (3773), 3740 states have call predecessors, (3773), 3757 states have call successors, (3773) [2022-12-13 17:56:45,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19029 states to 19029 states and 28590 transitions. [2022-12-13 17:56:45,861 INFO L78 Accepts]: Start accepts. Automaton has 19029 states and 28590 transitions. Word has length 292 [2022-12-13 17:56:45,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:56:45,861 INFO L495 AbstractCegarLoop]: Abstraction has 19029 states and 28590 transitions. [2022-12-13 17:56:45,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 16.454545454545453) internal successors, (181), 5 states have internal predecessors, (181), 2 states have call successors, (39), 7 states have call predecessors, (39), 2 states have return successors, (37), 3 states have call predecessors, (37), 2 states have call successors, (37) [2022-12-13 17:56:45,862 INFO L276 IsEmpty]: Start isEmpty. Operand 19029 states and 28590 transitions. [2022-12-13 17:56:45,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2022-12-13 17:56:45,888 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:56:45,888 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:56:45,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-13 17:56:45,888 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:56:45,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:56:45,889 INFO L85 PathProgramCache]: Analyzing trace with hash -122112186, now seen corresponding path program 1 times [2022-12-13 17:56:45,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:56:45,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493319291] [2022-12-13 17:56:45,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:56:45,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:56:45,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:46,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 17:56:46,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:46,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 17:56:46,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:46,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 17:56:46,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:46,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:56:46,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:46,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 17:56:46,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:46,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 17:56:46,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:46,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-12-13 17:56:46,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:46,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-12-13 17:56:46,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:46,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 17:56:46,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:46,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-12-13 17:56:46,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:46,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-12-13 17:56:46,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:46,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-12-13 17:56:46,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:46,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 17:56:46,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:46,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-12-13 17:56:46,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:46,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-12-13 17:56:46,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:46,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-12-13 17:56:46,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:46,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-12-13 17:56:46,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:46,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:56:46,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:46,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 17:56:46,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:46,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-12-13 17:56:46,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:46,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-12-13 17:56:46,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:46,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-12-13 17:56:46,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:46,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 17:56:46,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:46,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-12-13 17:56:46,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:46,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-12-13 17:56:46,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:46,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-12-13 17:56:46,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:46,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-12-13 17:56:46,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:46,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-12-13 17:56:46,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:46,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-12-13 17:56:46,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:46,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-12-13 17:56:46,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:46,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-12-13 17:56:46,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:46,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-12-13 17:56:46,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:46,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2022-12-13 17:56:46,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:46,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-12-13 17:56:46,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:46,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-12-13 17:56:46,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:46,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-12-13 17:56:46,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:46,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2022-12-13 17:56:46,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:46,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-12-13 17:56:46,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:46,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2022-12-13 17:56:46,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:46,286 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2022-12-13 17:56:46,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:56:46,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493319291] [2022-12-13 17:56:46,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493319291] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:56:46,287 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:56:46,287 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 17:56:46,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642015025] [2022-12-13 17:56:46,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:56:46,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 17:56:46,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:56:46,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 17:56:46,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-12-13 17:56:46,288 INFO L87 Difference]: Start difference. First operand 19029 states and 28590 transitions. Second operand has 9 states, 9 states have (on average 21.11111111111111) internal successors, (190), 4 states have internal predecessors, (190), 3 states have call successors, (41), 7 states have call predecessors, (41), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2022-12-13 17:56:47,575 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 17:56:48,645 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 17:56:56,299 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 17:57:03,234 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 17:57:11,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-13 17:57:15,881 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 [] [2022-12-13 17:57:17,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:57:17,239 INFO L93 Difference]: Finished difference Result 41676 states and 64412 transitions. [2022-12-13 17:57:17,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 17:57:17,240 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 21.11111111111111) internal successors, (190), 4 states have internal predecessors, (190), 3 states have call successors, (41), 7 states have call predecessors, (41), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) Word has length 312 [2022-12-13 17:57:17,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:57:17,334 INFO L225 Difference]: With dead ends: 41676 [2022-12-13 17:57:17,334 INFO L226 Difference]: Without dead ends: 22691 [2022-12-13 17:57:17,398 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2022-12-13 17:57:17,399 INFO L413 NwaCegarLoop]: 1860 mSDtfsCounter, 6485 mSDsluCounter, 8206 mSDsCounter, 0 mSdLazyCounter, 14556 mSolverCounterSat, 4434 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6485 SdHoareTripleChecker+Valid, 10066 SdHoareTripleChecker+Invalid, 18993 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4434 IncrementalHoareTripleChecker+Valid, 14556 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.5s IncrementalHoareTripleChecker+Time [2022-12-13 17:57:17,399 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6485 Valid, 10066 Invalid, 18993 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4434 Valid, 14556 Invalid, 3 Unknown, 0 Unchecked, 28.5s Time] [2022-12-13 17:57:17,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22691 states. [2022-12-13 17:57:18,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22691 to 19023. [2022-12-13 17:57:18,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19023 states, 14679 states have (on average 1.4338170175080047) internal successors, (21047), 14807 states have internal predecessors, (21047), 3764 states have call successors, (3764), 574 states have call predecessors, (3764), 579 states have return successors, (3771), 3738 states have call predecessors, (3771), 3757 states have call successors, (3771) [2022-12-13 17:57:18,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19023 states to 19023 states and 28582 transitions. [2022-12-13 17:57:18,962 INFO L78 Accepts]: Start accepts. Automaton has 19023 states and 28582 transitions. Word has length 312 [2022-12-13 17:57:18,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:57:18,962 INFO L495 AbstractCegarLoop]: Abstraction has 19023 states and 28582 transitions. [2022-12-13 17:57:18,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 21.11111111111111) internal successors, (190), 4 states have internal predecessors, (190), 3 states have call successors, (41), 7 states have call predecessors, (41), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2022-12-13 17:57:18,962 INFO L276 IsEmpty]: Start isEmpty. Operand 19023 states and 28582 transitions. [2022-12-13 17:57:18,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2022-12-13 17:57:18,993 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:57:18,993 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:57:18,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-13 17:57:18,993 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:57:18,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:57:18,993 INFO L85 PathProgramCache]: Analyzing trace with hash -1540480302, now seen corresponding path program 1 times [2022-12-13 17:57:18,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:57:18,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886687178] [2022-12-13 17:57:18,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:57:18,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:57:19,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:57:19,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 17:57:19,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:57:19,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 17:57:19,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:57:19,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 17:57:19,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:57:19,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:57:19,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:57:19,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 17:57:19,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:57:19,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 17:57:19,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:57:19,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-12-13 17:57:19,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:57:19,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-12-13 17:57:19,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:57:19,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 17:57:19,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:57:19,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-12-13 17:57:19,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:57:19,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-12-13 17:57:19,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:57:19,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-12-13 17:57:19,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:57:19,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 17:57:19,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:57:19,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-12-13 17:57:19,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:57:19,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-12-13 17:57:19,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:57:19,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-12-13 17:57:19,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:57:19,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-12-13 17:57:19,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:57:19,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:57:19,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:57:19,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 17:57:19,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:57:19,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-12-13 17:57:19,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:57:19,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-12-13 17:57:19,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:57:19,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-12-13 17:57:19,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:57:19,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 17:57:19,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:57:19,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-12-13 17:57:19,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:57:19,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-12-13 17:57:19,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:57:19,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-12-13 17:57:19,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:57:19,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-12-13 17:57:19,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:57:19,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-12-13 17:57:19,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:57:19,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-12-13 17:57:19,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:57:19,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-12-13 17:57:19,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:57:19,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-12-13 17:57:19,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:57:19,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-12-13 17:57:19,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:57:19,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2022-12-13 17:57:19,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:57:19,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2022-12-13 17:57:19,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:57:19,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-12-13 17:57:19,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:57:19,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-12-13 17:57:19,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:57:19,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-12-13 17:57:19,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:57:19,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-12-13 17:57:19,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:57:19,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2022-12-13 17:57:19,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:57:19,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-12-13 17:57:19,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:57:19,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2022-12-13 17:57:19,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:57:19,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2022-12-13 17:57:19,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:57:19,485 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2022-12-13 17:57:19,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:57:19,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886687178] [2022-12-13 17:57:19,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886687178] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:57:19,485 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:57:19,486 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 17:57:19,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387089055] [2022-12-13 17:57:19,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:57:19,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 17:57:19,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:57:19,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 17:57:19,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-12-13 17:57:19,487 INFO L87 Difference]: Start difference. First operand 19023 states and 28582 transitions. Second operand has 10 states, 10 states have (on average 20.1) internal successors, (201), 5 states have internal predecessors, (201), 4 states have call successors, (44), 7 states have call predecessors, (44), 1 states have return successors, (42), 4 states have call predecessors, (42), 4 states have call successors, (42) [2022-12-13 17:57:30,863 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 [] [2022-12-13 17:57:32,872 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 17:57:40,129 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 17:57:42,649 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 17:57:54,492 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-13 17:57:56,494 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-13 17:58:02,351 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 17:58:04,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:58:04,420 INFO L93 Difference]: Finished difference Result 41680 states and 64420 transitions. [2022-12-13 17:58:04,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 17:58:04,420 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 20.1) internal successors, (201), 5 states have internal predecessors, (201), 4 states have call successors, (44), 7 states have call predecessors, (44), 1 states have return successors, (42), 4 states have call predecessors, (42), 4 states have call successors, (42) Word has length 332 [2022-12-13 17:58:04,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:58:04,515 INFO L225 Difference]: With dead ends: 41680 [2022-12-13 17:58:04,515 INFO L226 Difference]: Without dead ends: 22691 [2022-12-13 17:58:04,578 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2022-12-13 17:58:04,578 INFO L413 NwaCegarLoop]: 1861 mSDtfsCounter, 5996 mSDsluCounter, 10615 mSDsCounter, 0 mSdLazyCounter, 20166 mSolverCounterSat, 3683 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5997 SdHoareTripleChecker+Valid, 12476 SdHoareTripleChecker+Invalid, 23855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3683 IncrementalHoareTripleChecker+Valid, 20166 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.2s IncrementalHoareTripleChecker+Time [2022-12-13 17:58:04,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5997 Valid, 12476 Invalid, 23855 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3683 Valid, 20166 Invalid, 6 Unknown, 0 Unchecked, 42.2s Time] [2022-12-13 17:58:04,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22691 states. [2022-12-13 17:58:06,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22691 to 19023. [2022-12-13 17:58:06,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19023 states, 14679 states have (on average 1.4328632740649907) internal successors, (21033), 14807 states have internal predecessors, (21033), 3764 states have call successors, (3764), 574 states have call predecessors, (3764), 579 states have return successors, (3771), 3738 states have call predecessors, (3771), 3757 states have call successors, (3771) [2022-12-13 17:58:06,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19023 states to 19023 states and 28568 transitions. [2022-12-13 17:58:06,136 INFO L78 Accepts]: Start accepts. Automaton has 19023 states and 28568 transitions. Word has length 332 [2022-12-13 17:58:06,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:58:06,136 INFO L495 AbstractCegarLoop]: Abstraction has 19023 states and 28568 transitions. [2022-12-13 17:58:06,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 20.1) internal successors, (201), 5 states have internal predecessors, (201), 4 states have call successors, (44), 7 states have call predecessors, (44), 1 states have return successors, (42), 4 states have call predecessors, (42), 4 states have call successors, (42) [2022-12-13 17:58:06,137 INFO L276 IsEmpty]: Start isEmpty. Operand 19023 states and 28568 transitions. [2022-12-13 17:58:06,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2022-12-13 17:58:06,168 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:58:06,168 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:58:06,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-12-13 17:58:06,168 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:58:06,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:58:06,168 INFO L85 PathProgramCache]: Analyzing trace with hash 2108889451, now seen corresponding path program 1 times [2022-12-13 17:58:06,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:58:06,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008946835] [2022-12-13 17:58:06,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:58:06,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:58:06,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:58:06,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 17:58:06,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:58:06,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 17:58:06,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:58:06,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 17:58:06,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:58:06,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:58:06,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:58:06,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 17:58:06,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:58:06,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 17:58:06,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:58:06,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-12-13 17:58:06,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:58:06,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-12-13 17:58:06,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:58:06,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 17:58:06,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:58:06,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-12-13 17:58:06,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:58:06,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-12-13 17:58:06,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:58:06,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-12-13 17:58:06,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:58:06,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 17:58:06,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:58:06,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-12-13 17:58:06,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:58:06,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-12-13 17:58:06,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:58:06,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-12-13 17:58:06,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:58:06,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-12-13 17:58:06,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:58:06,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:58:06,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:58:06,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 17:58:06,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:58:06,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-12-13 17:58:06,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:58:06,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-12-13 17:58:06,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:58:06,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-12-13 17:58:06,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:58:06,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 17:58:06,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:58:06,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-12-13 17:58:06,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:58:06,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-12-13 17:58:06,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:58:06,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-12-13 17:58:06,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:58:06,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-12-13 17:58:06,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:58:06,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-12-13 17:58:06,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:58:06,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-12-13 17:58:06,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:58:06,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-12-13 17:58:06,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:58:06,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-12-13 17:58:06,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:58:06,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-12-13 17:58:06,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:58:06,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2022-12-13 17:58:06,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:58:06,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2022-12-13 17:58:06,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:58:06,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-12-13 17:58:06,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:58:06,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2022-12-13 17:58:06,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:58:06,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-12-13 17:58:06,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:58:06,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2022-12-13 17:58:06,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:58:06,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-12-13 17:58:06,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:58:06,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2022-12-13 17:58:06,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:58:06,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-12-13 17:58:06,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:58:06,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-12-13 17:58:06,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:58:06,677 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2022-12-13 17:58:06,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:58:06,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008946835] [2022-12-13 17:58:06,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008946835] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:58:06,677 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:58:06,677 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 17:58:06,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875735498] [2022-12-13 17:58:06,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:58:06,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 17:58:06,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:58:06,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 17:58:06,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-12-13 17:58:06,679 INFO L87 Difference]: Start difference. First operand 19023 states and 28568 transitions. Second operand has 10 states, 10 states have (on average 20.3) internal successors, (203), 5 states have internal predecessors, (203), 4 states have call successors, (44), 7 states have call predecessors, (44), 1 states have return successors, (42), 4 states have call predecessors, (42), 4 states have call successors, (42) [2022-12-13 17:58:17,258 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 17:58:25,346 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 17:58:34,786 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-13 17:58:38,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 17:58:40,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:58:40,028 INFO L93 Difference]: Finished difference Result 41680 states and 64392 transitions. [2022-12-13 17:58:40,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 17:58:40,029 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 20.3) internal successors, (203), 5 states have internal predecessors, (203), 4 states have call successors, (44), 7 states have call predecessors, (44), 1 states have return successors, (42), 4 states have call predecessors, (42), 4 states have call successors, (42) Word has length 334 [2022-12-13 17:58:40,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:58:40,144 INFO L225 Difference]: With dead ends: 41680 [2022-12-13 17:58:40,144 INFO L226 Difference]: Without dead ends: 22689 [2022-12-13 17:58:40,221 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2022-12-13 17:58:40,222 INFO L413 NwaCegarLoop]: 1854 mSDtfsCounter, 7001 mSDsluCounter, 9756 mSDsCounter, 0 mSdLazyCounter, 17285 mSolverCounterSat, 5211 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7002 SdHoareTripleChecker+Valid, 11610 SdHoareTripleChecker+Invalid, 22499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5211 IncrementalHoareTripleChecker+Valid, 17285 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.7s IncrementalHoareTripleChecker+Time [2022-12-13 17:58:40,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7002 Valid, 11610 Invalid, 22499 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5211 Valid, 17285 Invalid, 3 Unknown, 0 Unchecked, 30.7s Time] [2022-12-13 17:58:40,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22689 states. [2022-12-13 17:58:42,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22689 to 19021. [2022-12-13 17:58:42,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19021 states, 14677 states have (on average 1.4325134564284254) internal successors, (21025), 14805 states have internal predecessors, (21025), 3764 states have call successors, (3764), 574 states have call predecessors, (3764), 579 states have return successors, (3771), 3738 states have call predecessors, (3771), 3757 states have call successors, (3771) [2022-12-13 17:58:42,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19021 states to 19021 states and 28560 transitions. [2022-12-13 17:58:42,189 INFO L78 Accepts]: Start accepts. Automaton has 19021 states and 28560 transitions. Word has length 334 [2022-12-13 17:58:42,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:58:42,189 INFO L495 AbstractCegarLoop]: Abstraction has 19021 states and 28560 transitions. [2022-12-13 17:58:42,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 20.3) internal successors, (203), 5 states have internal predecessors, (203), 4 states have call successors, (44), 7 states have call predecessors, (44), 1 states have return successors, (42), 4 states have call predecessors, (42), 4 states have call successors, (42) [2022-12-13 17:58:42,189 INFO L276 IsEmpty]: Start isEmpty. Operand 19021 states and 28560 transitions. [2022-12-13 17:58:42,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2022-12-13 17:58:42,221 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:58:42,221 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:58:42,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-12-13 17:58:42,222 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:58:42,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:58:42,222 INFO L85 PathProgramCache]: Analyzing trace with hash -863051179, now seen corresponding path program 1 times [2022-12-13 17:58:42,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:58:42,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881459856] [2022-12-13 17:58:42,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:58:42,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:58:42,303 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 17:58:42,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1791111729] [2022-12-13 17:58:42,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:58:42,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:58:42,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:58:42,304 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:58:42,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 17:58:43,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:58:43,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 4089 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 17:58:43,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:58:43,262 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-12-13 17:58:43,262 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:58:43,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:58:43,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881459856] [2022-12-13 17:58:43,263 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 17:58:43,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1791111729] [2022-12-13 17:58:43,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1791111729] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:58:43,263 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:58:43,263 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 17:58:43,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83281324] [2022-12-13 17:58:43,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:58:43,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 17:58:43,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:58:43,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 17:58:43,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:58:43,264 INFO L87 Difference]: Start difference. First operand 19021 states and 28560 transitions. Second operand has 6 states, 6 states have (on average 35.166666666666664) internal successors, (211), 5 states have internal predecessors, (211), 2 states have call successors, (44), 2 states have call predecessors, (44), 3 states have return successors, (42), 3 states have call predecessors, (42), 2 states have call successors, (42) [2022-12-13 17:58:45,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:58:45,509 INFO L93 Difference]: Finished difference Result 26529 states and 40225 transitions. [2022-12-13 17:58:45,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 17:58:45,510 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 35.166666666666664) internal successors, (211), 5 states have internal predecessors, (211), 2 states have call successors, (44), 2 states have call predecessors, (44), 3 states have return successors, (42), 3 states have call predecessors, (42), 2 states have call successors, (42) Word has length 345 [2022-12-13 17:58:45,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:58:45,563 INFO L225 Difference]: With dead ends: 26529 [2022-12-13 17:58:45,564 INFO L226 Difference]: Without dead ends: 23399 [2022-12-13 17:58:45,579 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 346 GetRequests, 341 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-13 17:58:45,580 INFO L413 NwaCegarLoop]: 5965 mSDtfsCounter, 2218 mSDsluCounter, 21259 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 364 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2219 SdHoareTripleChecker+Valid, 27224 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 364 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 17:58:45,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2219 Valid, 27224 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [364 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 17:58:45,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23399 states. [2022-12-13 17:58:47,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23399 to 18301. [2022-12-13 17:58:47,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18301 states, 14109 states have (on average 1.4316393791197108) internal successors, (20199), 14229 states have internal predecessors, (20199), 3628 states have call successors, (3628), 559 states have call predecessors, (3628), 563 states have return successors, (3635), 3605 states have call predecessors, (3635), 3623 states have call successors, (3635) [2022-12-13 17:58:47,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18301 states to 18301 states and 27462 transitions. [2022-12-13 17:58:47,123 INFO L78 Accepts]: Start accepts. Automaton has 18301 states and 27462 transitions. Word has length 345 [2022-12-13 17:58:47,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:58:47,123 INFO L495 AbstractCegarLoop]: Abstraction has 18301 states and 27462 transitions. [2022-12-13 17:58:47,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 35.166666666666664) internal successors, (211), 5 states have internal predecessors, (211), 2 states have call successors, (44), 2 states have call predecessors, (44), 3 states have return successors, (42), 3 states have call predecessors, (42), 2 states have call successors, (42) [2022-12-13 17:58:47,124 INFO L276 IsEmpty]: Start isEmpty. Operand 18301 states and 27462 transitions. [2022-12-13 17:58:47,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2022-12-13 17:58:47,154 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:58:47,154 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:58:47,166 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-13 17:58:47,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-12-13 17:58:47,356 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:58:47,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:58:47,357 INFO L85 PathProgramCache]: Analyzing trace with hash -1493425542, now seen corresponding path program 1 times [2022-12-13 17:58:47,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:58:47,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082673014] [2022-12-13 17:58:47,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:58:47,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:58:47,507 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 17:58:47,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [939203883] [2022-12-13 17:58:47,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:58:47,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:58:47,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:58:47,508 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:58:47,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 17:58:48,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:58:48,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 4220 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 17:58:48,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:58:48,630 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2022-12-13 17:58:48,630 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:58:48,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:58:48,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082673014] [2022-12-13 17:58:48,631 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 17:58:48,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [939203883] [2022-12-13 17:58:48,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [939203883] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:58:48,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:58:48,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 17:58:48,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87240096] [2022-12-13 17:58:48,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:58:48,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 17:58:48,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:58:48,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 17:58:48,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 17:58:48,632 INFO L87 Difference]: Start difference. First operand 18301 states and 27462 transitions. Second operand has 4 states, 4 states have (on average 55.0) internal successors, (220), 4 states have internal predecessors, (220), 3 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2022-12-13 17:58:49,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:58:49,817 INFO L93 Difference]: Finished difference Result 33698 states and 50489 transitions. [2022-12-13 17:58:49,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 17:58:49,818 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 55.0) internal successors, (220), 4 states have internal predecessors, (220), 3 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) Word has length 364 [2022-12-13 17:58:49,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:58:49,882 INFO L225 Difference]: With dead ends: 33698 [2022-12-13 17:58:49,882 INFO L226 Difference]: Without dead ends: 15437 [2022-12-13 17:58:49,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 361 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 17:58:49,936 INFO L413 NwaCegarLoop]: 4455 mSDtfsCounter, 49 mSDsluCounter, 8835 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 13290 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 17:58:49,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 13290 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 17:58:49,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15437 states. [2022-12-13 17:58:51,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15437 to 15437. [2022-12-13 17:58:51,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15437 states, 11900 states have (on average 1.430672268907563) internal successors, (17025), 11996 states have internal predecessors, (17025), 3019 states have call successors, (3019), 514 states have call predecessors, (3019), 517 states have return successors, (3028), 3005 states have call predecessors, (3028), 3018 states have call successors, (3028) [2022-12-13 17:58:51,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15437 states to 15437 states and 23072 transitions. [2022-12-13 17:58:51,110 INFO L78 Accepts]: Start accepts. Automaton has 15437 states and 23072 transitions. Word has length 364 [2022-12-13 17:58:51,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:58:51,111 INFO L495 AbstractCegarLoop]: Abstraction has 15437 states and 23072 transitions. [2022-12-13 17:58:51,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.0) internal successors, (220), 4 states have internal predecessors, (220), 3 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2022-12-13 17:58:51,111 INFO L276 IsEmpty]: Start isEmpty. Operand 15437 states and 23072 transitions. [2022-12-13 17:58:51,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2022-12-13 17:58:51,141 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:58:51,142 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:58:51,154 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-13 17:58:51,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-12-13 17:58:51,344 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:58:51,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:58:51,345 INFO L85 PathProgramCache]: Analyzing trace with hash 192466195, now seen corresponding path program 1 times [2022-12-13 17:58:51,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:58:51,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958576250] [2022-12-13 17:58:51,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:58:51,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:58:51,470 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 17:58:51,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2054670391] [2022-12-13 17:58:51,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:58:51,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:58:51,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:58:51,471 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:58:51,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-13 17:58:52,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:58:52,570 INFO L263 TraceCheckSpWp]: Trace formula consists of 4155 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 17:58:52,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:58:53,074 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-12-13 17:58:53,074 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:58:53,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:58:53,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958576250] [2022-12-13 17:58:53,075 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 17:58:53,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2054670391] [2022-12-13 17:58:53,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2054670391] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:58:53,075 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:58:53,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 17:58:53,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846616216] [2022-12-13 17:58:53,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:58:53,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 17:58:53,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:58:53,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 17:58:53,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 17:58:53,077 INFO L87 Difference]: Start difference. First operand 15437 states and 23072 transitions. Second operand has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 3 states have call successors, (47), 3 states have call predecessors, (47), 2 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2022-12-13 17:58:55,438 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 [] [2022-12-13 17:58:57,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:58:57,755 INFO L93 Difference]: Finished difference Result 40174 states and 60033 transitions. [2022-12-13 17:58:57,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 17:58:57,756 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 3 states have call successors, (47), 3 states have call predecessors, (47), 2 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) Word has length 365 [2022-12-13 17:58:57,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:58:57,840 INFO L225 Difference]: With dead ends: 40174 [2022-12-13 17:58:57,841 INFO L226 Difference]: Without dead ends: 24793 [2022-12-13 17:58:57,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 363 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 17:58:57,885 INFO L413 NwaCegarLoop]: 7535 mSDtfsCounter, 4051 mSDsluCounter, 3749 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4051 SdHoareTripleChecker+Valid, 11284 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-12-13 17:58:57,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4051 Valid, 11284 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2022-12-13 17:58:57,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24793 states. [2022-12-13 17:58:59,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24793 to 17182. [2022-12-13 17:58:59,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17182 states, 13240 states have (on average 1.432250755287009) internal successors, (18963), 13340 states have internal predecessors, (18963), 3342 states have call successors, (3342), 595 states have call predecessors, (3342), 599 states have return successors, (3352), 3330 states have call predecessors, (3352), 3341 states have call successors, (3352) [2022-12-13 17:58:59,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17182 states to 17182 states and 25657 transitions. [2022-12-13 17:58:59,518 INFO L78 Accepts]: Start accepts. Automaton has 17182 states and 25657 transitions. Word has length 365 [2022-12-13 17:58:59,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:58:59,519 INFO L495 AbstractCegarLoop]: Abstraction has 17182 states and 25657 transitions. [2022-12-13 17:58:59,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 3 states have call successors, (47), 3 states have call predecessors, (47), 2 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2022-12-13 17:58:59,519 INFO L276 IsEmpty]: Start isEmpty. Operand 17182 states and 25657 transitions. [2022-12-13 17:58:59,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2022-12-13 17:58:59,560 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:58:59,560 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:58:59,573 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-12-13 17:58:59,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-12-13 17:58:59,762 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:58:59,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:58:59,764 INFO L85 PathProgramCache]: Analyzing trace with hash 252420421, now seen corresponding path program 1 times [2022-12-13 17:58:59,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:58:59,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076749215] [2022-12-13 17:58:59,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:58:59,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:58:59,901 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 17:58:59,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1964462825] [2022-12-13 17:58:59,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:58:59,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:58:59,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:58:59,902 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:58:59,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-13 17:59:01,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:01,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 4172 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 17:59:01,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:59:01,530 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2022-12-13 17:59:01,530 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:59:01,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:59:01,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076749215] [2022-12-13 17:59:01,530 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 17:59:01,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1964462825] [2022-12-13 17:59:01,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1964462825] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:59:01,530 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:59:01,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 17:59:01,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566489600] [2022-12-13 17:59:01,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:59:01,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 17:59:01,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:59:01,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 17:59:01,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 17:59:01,532 INFO L87 Difference]: Start difference. First operand 17182 states and 25657 transitions. Second operand has 4 states, 4 states have (on average 55.5) internal successors, (222), 3 states have internal predecessors, (222), 2 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2022-12-13 17:59:05,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:59:05,232 INFO L93 Difference]: Finished difference Result 17209 states and 25691 transitions. [2022-12-13 17:59:05,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 17:59:05,233 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 55.5) internal successors, (222), 3 states have internal predecessors, (222), 2 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) Word has length 370 [2022-12-13 17:59:05,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:59:05,287 INFO L225 Difference]: With dead ends: 17209 [2022-12-13 17:59:05,287 INFO L226 Difference]: Without dead ends: 17197 [2022-12-13 17:59:05,298 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 369 GetRequests, 367 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 17:59:05,299 INFO L413 NwaCegarLoop]: 4442 mSDtfsCounter, 4163 mSDsluCounter, 3258 mSDsCounter, 0 mSdLazyCounter, 1216 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4168 SdHoareTripleChecker+Valid, 7700 SdHoareTripleChecker+Invalid, 1221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-12-13 17:59:05,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4168 Valid, 7700 Invalid, 1221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1216 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-12-13 17:59:05,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17197 states. [2022-12-13 17:59:06,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17197 to 17183. [2022-12-13 17:59:06,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17183 states, 13241 states have (on average 1.4322181104146212) internal successors, (18964), 13341 states have internal predecessors, (18964), 3342 states have call successors, (3342), 595 states have call predecessors, (3342), 599 states have return successors, (3352), 3330 states have call predecessors, (3352), 3341 states have call successors, (3352) [2022-12-13 17:59:06,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17183 states to 17183 states and 25658 transitions. [2022-12-13 17:59:07,001 INFO L78 Accepts]: Start accepts. Automaton has 17183 states and 25658 transitions. Word has length 370 [2022-12-13 17:59:07,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:59:07,001 INFO L495 AbstractCegarLoop]: Abstraction has 17183 states and 25658 transitions. [2022-12-13 17:59:07,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.5) internal successors, (222), 3 states have internal predecessors, (222), 2 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2022-12-13 17:59:07,001 INFO L276 IsEmpty]: Start isEmpty. Operand 17183 states and 25658 transitions. [2022-12-13 17:59:07,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2022-12-13 17:59:07,043 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:59:07,043 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:59:07,057 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-13 17:59:07,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:59:07,246 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:59:07,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:59:07,247 INFO L85 PathProgramCache]: Analyzing trace with hash 298698494, now seen corresponding path program 1 times [2022-12-13 17:59:07,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:59:07,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437910495] [2022-12-13 17:59:07,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:59:07,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:59:07,367 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 17:59:07,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2089064207] [2022-12-13 17:59:07,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:59:07,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:59:07,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:59:07,369 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:59:07,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-13 17:59:08,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:08,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 4181 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 17:59:08,359 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:59:08,742 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2022-12-13 17:59:08,742 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 17:59:09,033 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2022-12-13 17:59:09,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:59:09,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437910495] [2022-12-13 17:59:09,033 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 17:59:09,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2089064207] [2022-12-13 17:59:09,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2089064207] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 17:59:09,033 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 17:59:09,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 8 [2022-12-13 17:59:09,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800595281] [2022-12-13 17:59:09,034 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 17:59:09,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 17:59:09,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:59:09,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 17:59:09,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-12-13 17:59:09,037 INFO L87 Difference]: Start difference. First operand 17183 states and 25658 transitions. Second operand has 8 states, 8 states have (on average 55.75) internal successors, (446), 8 states have internal predecessors, (446), 4 states have call successors, (95), 3 states have call predecessors, (95), 3 states have return successors, (94), 4 states have call predecessors, (94), 4 states have call successors, (94) [2022-12-13 17:59:13,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:59:13,688 INFO L93 Difference]: Finished difference Result 17240 states and 25738 transitions. [2022-12-13 17:59:13,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 17:59:13,689 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 55.75) internal successors, (446), 8 states have internal predecessors, (446), 4 states have call successors, (95), 3 states have call predecessors, (95), 3 states have return successors, (94), 4 states have call predecessors, (94), 4 states have call successors, (94) Word has length 374 [2022-12-13 17:59:13,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:59:13,751 INFO L225 Difference]: With dead ends: 17240 [2022-12-13 17:59:13,751 INFO L226 Difference]: Without dead ends: 17228 [2022-12-13 17:59:13,763 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 748 GetRequests, 740 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=50, Unknown=0, NotChecked=0, Total=90 [2022-12-13 17:59:13,764 INFO L413 NwaCegarLoop]: 4437 mSDtfsCounter, 7290 mSDsluCounter, 6531 mSDsCounter, 0 mSdLazyCounter, 2442 mSolverCounterSat, 1144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7300 SdHoareTripleChecker+Valid, 10968 SdHoareTripleChecker+Invalid, 3586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1144 IncrementalHoareTripleChecker+Valid, 2442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-12-13 17:59:13,764 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7300 Valid, 10968 Invalid, 3586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1144 Valid, 2442 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-12-13 17:59:13,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17228 states. [2022-12-13 17:59:15,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17228 to 17228. [2022-12-13 17:59:15,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17228 states, 13271 states have (on average 1.4316931655489413) internal successors, (19000), 13374 states have internal predecessors, (19000), 3357 states have call successors, (3357), 595 states have call predecessors, (3357), 599 states have return successors, (3367), 3345 states have call predecessors, (3367), 3356 states have call successors, (3367) [2022-12-13 17:59:15,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17228 states to 17228 states and 25724 transitions. [2022-12-13 17:59:15,434 INFO L78 Accepts]: Start accepts. Automaton has 17228 states and 25724 transitions. Word has length 374 [2022-12-13 17:59:15,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:59:15,435 INFO L495 AbstractCegarLoop]: Abstraction has 17228 states and 25724 transitions. [2022-12-13 17:59:15,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 55.75) internal successors, (446), 8 states have internal predecessors, (446), 4 states have call successors, (95), 3 states have call predecessors, (95), 3 states have return successors, (94), 4 states have call predecessors, (94), 4 states have call successors, (94) [2022-12-13 17:59:15,435 INFO L276 IsEmpty]: Start isEmpty. Operand 17228 states and 25724 transitions. [2022-12-13 17:59:15,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2022-12-13 17:59:15,481 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:59:15,481 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:59:15,495 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-12-13 17:59:15,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:59:15,684 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:59:15,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:59:15,685 INFO L85 PathProgramCache]: Analyzing trace with hash 1573395753, now seen corresponding path program 2 times [2022-12-13 17:59:15,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:59:15,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952776079] [2022-12-13 17:59:15,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:59:15,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:59:15,780 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 17:59:15,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [25825295] [2022-12-13 17:59:15,781 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 17:59:15,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:59:15,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:59:15,782 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:59:15,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-13 17:59:16,579 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-13 17:59:16,579 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 17:59:16,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 2137 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 17:59:16,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:59:17,501 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2022-12-13 17:59:17,501 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:59:17,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:59:17,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952776079] [2022-12-13 17:59:17,501 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 17:59:17,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [25825295] [2022-12-13 17:59:17,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [25825295] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:59:17,501 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:59:17,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 17:59:17,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320802644] [2022-12-13 17:59:17,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:59:17,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 17:59:17,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:59:17,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 17:59:17,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 17:59:17,503 INFO L87 Difference]: Start difference. First operand 17228 states and 25724 transitions. Second operand has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 2 states have internal predecessors, (226), 2 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2022-12-13 17:59:19,799 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 [] [2022-12-13 17:59:21,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:59:21,412 INFO L93 Difference]: Finished difference Result 34411 states and 51392 transitions. [2022-12-13 17:59:21,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 17:59:21,412 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 2 states have internal predecessors, (226), 2 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) Word has length 386 [2022-12-13 17:59:21,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:59:21,477 INFO L225 Difference]: With dead ends: 34411 [2022-12-13 17:59:21,477 INFO L226 Difference]: Without dead ends: 20367 [2022-12-13 17:59:21,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 385 GetRequests, 384 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 17:59:21,514 INFO L413 NwaCegarLoop]: 4840 mSDtfsCounter, 2929 mSDsluCounter, 4393 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2929 SdHoareTripleChecker+Valid, 9233 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-12-13 17:59:21,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2929 Valid, 9233 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2022-12-13 17:59:21,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20367 states. [2022-12-13 17:59:23,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20367 to 20366. [2022-12-13 17:59:23,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20366 states, 15656 states have (on average 1.4296755237608585) internal successors, (22383), 15776 states have internal predecessors, (22383), 3978 states have call successors, (3978), 726 states have call predecessors, (3978), 731 states have return successors, (3989), 3963 states have call predecessors, (3989), 3977 states have call successors, (3989) [2022-12-13 17:59:23,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20366 states to 20366 states and 30350 transitions. [2022-12-13 17:59:23,388 INFO L78 Accepts]: Start accepts. Automaton has 20366 states and 30350 transitions. Word has length 386 [2022-12-13 17:59:23,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:59:23,388 INFO L495 AbstractCegarLoop]: Abstraction has 20366 states and 30350 transitions. [2022-12-13 17:59:23,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 2 states have internal predecessors, (226), 2 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2022-12-13 17:59:23,388 INFO L276 IsEmpty]: Start isEmpty. Operand 20366 states and 30350 transitions. [2022-12-13 17:59:23,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 441 [2022-12-13 17:59:23,447 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:59:23,447 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:59:23,458 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-12-13 17:59:23,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2022-12-13 17:59:23,649 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:59:23,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:59:23,651 INFO L85 PathProgramCache]: Analyzing trace with hash 68364483, now seen corresponding path program 1 times [2022-12-13 17:59:23,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:59:23,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025886246] [2022-12-13 17:59:23,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:59:23,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:59:23,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:23,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:59:23,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025886246] [2022-12-13 17:59:23,859 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-12-13 17:59:23,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1566790910] [2022-12-13 17:59:23,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:59:23,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:59:23,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:59:23,861 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:59:23,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-12-13 17:59:24,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:24,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 4672 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 17:59:25,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:59:25,061 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2022-12-13 17:59:25,062 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:59:25,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1566790910] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:59:25,062 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:59:25,062 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 17:59:25,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788625747] [2022-12-13 17:59:25,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:59:25,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 17:59:25,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:59:25,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 17:59:25,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 17:59:25,064 INFO L87 Difference]: Start difference. First operand 20366 states and 30350 transitions. Second operand has 5 states, 5 states have (on average 53.2) internal successors, (266), 5 states have internal predecessors, (266), 4 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (54), 4 states have call predecessors, (54), 4 states have call successors, (54) [2022-12-13 17:59:27,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:59:27,139 INFO L93 Difference]: Finished difference Result 37575 states and 56045 transitions. [2022-12-13 17:59:27,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 17:59:27,140 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 53.2) internal successors, (266), 5 states have internal predecessors, (266), 4 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (54), 4 states have call predecessors, (54), 4 states have call successors, (54) Word has length 440 [2022-12-13 17:59:27,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:59:27,208 INFO L225 Difference]: With dead ends: 37575 [2022-12-13 17:59:27,208 INFO L226 Difference]: Without dead ends: 17147 [2022-12-13 17:59:27,265 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 441 GetRequests, 436 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-13 17:59:27,266 INFO L413 NwaCegarLoop]: 4455 mSDtfsCounter, 76 mSDsluCounter, 13253 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 17708 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 17:59:27,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 17708 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 17:59:27,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17147 states. [2022-12-13 17:59:28,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17147 to 17145. [2022-12-13 17:59:28,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17145 states, 13223 states have (on average 1.4297814414278152) internal successors, (18906), 13318 states have internal predecessors, (18906), 3323 states have call successors, (3323), 594 states have call predecessors, (3323), 598 states have return successors, (3333), 3311 states have call predecessors, (3333), 3322 states have call successors, (3333) [2022-12-13 17:59:29,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17145 states to 17145 states and 25562 transitions. [2022-12-13 17:59:29,061 INFO L78 Accepts]: Start accepts. Automaton has 17145 states and 25562 transitions. Word has length 440 [2022-12-13 17:59:29,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:59:29,061 INFO L495 AbstractCegarLoop]: Abstraction has 17145 states and 25562 transitions. [2022-12-13 17:59:29,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 53.2) internal successors, (266), 5 states have internal predecessors, (266), 4 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (54), 4 states have call predecessors, (54), 4 states have call successors, (54) [2022-12-13 17:59:29,062 INFO L276 IsEmpty]: Start isEmpty. Operand 17145 states and 25562 transitions. [2022-12-13 17:59:29,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 527 [2022-12-13 17:59:29,119 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:59:29,120 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:59:29,133 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-12-13 17:59:29,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:59:29,321 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:59:29,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:59:29,323 INFO L85 PathProgramCache]: Analyzing trace with hash -762463437, now seen corresponding path program 1 times [2022-12-13 17:59:29,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:59:29,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381094501] [2022-12-13 17:59:29,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:59:29,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:59:29,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:29,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:59:29,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381094501] [2022-12-13 17:59:29,559 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-12-13 17:59:29,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [596929579] [2022-12-13 17:59:29,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:59:29,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:59:29,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:59:29,560 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:59:29,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-12-13 17:59:30,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:30,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 5600 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 17:59:30,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:59:30,861 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2022-12-13 17:59:30,862 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:59:30,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [596929579] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:59:30,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:59:30,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 17:59:30,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670302358] [2022-12-13 17:59:30,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:59:30,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 17:59:30,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:59:30,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 17:59:30,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 17:59:30,863 INFO L87 Difference]: Start difference. First operand 17145 states and 25562 transitions. Second operand has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 2 states have call successors, (64), 2 states have call predecessors, (64), 2 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) [2022-12-13 17:59:32,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:59:32,804 INFO L93 Difference]: Finished difference Result 31168 states and 46534 transitions. [2022-12-13 17:59:32,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 17:59:32,806 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 2 states have call successors, (64), 2 states have call predecessors, (64), 2 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) Word has length 526 [2022-12-13 17:59:32,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:59:32,878 INFO L225 Difference]: With dead ends: 31168 [2022-12-13 17:59:32,878 INFO L226 Difference]: Without dead ends: 17209 [2022-12-13 17:59:32,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 525 GetRequests, 524 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 17:59:32,926 INFO L413 NwaCegarLoop]: 4423 mSDtfsCounter, 13 mSDsluCounter, 4412 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 8835 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 17:59:32,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 8835 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 17:59:32,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17209 states. [2022-12-13 17:59:34,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17209 to 17153. [2022-12-13 17:59:34,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17153 states, 13231 states have (on average 1.4295215781120096) internal successors, (18914), 13326 states have internal predecessors, (18914), 3323 states have call successors, (3323), 594 states have call predecessors, (3323), 598 states have return successors, (3333), 3311 states have call predecessors, (3333), 3322 states have call successors, (3333) [2022-12-13 17:59:34,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17153 states to 17153 states and 25570 transitions. [2022-12-13 17:59:34,635 INFO L78 Accepts]: Start accepts. Automaton has 17153 states and 25570 transitions. Word has length 526 [2022-12-13 17:59:34,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:59:34,635 INFO L495 AbstractCegarLoop]: Abstraction has 17153 states and 25570 transitions. [2022-12-13 17:59:34,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 2 states have call successors, (64), 2 states have call predecessors, (64), 2 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) [2022-12-13 17:59:34,636 INFO L276 IsEmpty]: Start isEmpty. Operand 17153 states and 25570 transitions. [2022-12-13 17:59:34,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 531 [2022-12-13 17:59:34,674 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:59:34,674 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:59:34,688 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-12-13 17:59:34,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2022-12-13 17:59:34,876 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:59:34,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:59:34,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1905800589, now seen corresponding path program 1 times [2022-12-13 17:59:34,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:59:34,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616897087] [2022-12-13 17:59:34,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:59:34,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:59:35,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:35,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:59:35,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616897087] [2022-12-13 17:59:35,148 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-12-13 17:59:35,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2002079694] [2022-12-13 17:59:35,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:59:35,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:59:35,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:59:35,150 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:59:35,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-12-13 17:59:36,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:36,620 INFO L263 TraceCheckSpWp]: Trace formula consists of 5768 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 17:59:36,629 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:59:36,661 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2022-12-13 17:59:36,661 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:59:36,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2002079694] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:59:36,661 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:59:36,661 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 17:59:36,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085763615] [2022-12-13 17:59:36,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:59:36,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 17:59:36,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:59:36,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 17:59:36,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 17:59:36,662 INFO L87 Difference]: Start difference. First operand 17153 states and 25570 transitions. Second operand has 4 states, 4 states have (on average 77.25) internal successors, (309), 4 states have internal predecessors, (309), 2 states have call successors, (65), 2 states have call predecessors, (65), 2 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) [2022-12-13 17:59:38,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:59:38,889 INFO L93 Difference]: Finished difference Result 31144 states and 46494 transitions. [2022-12-13 17:59:38,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 17:59:38,889 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 77.25) internal successors, (309), 4 states have internal predecessors, (309), 2 states have call successors, (65), 2 states have call predecessors, (65), 2 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) Word has length 530 [2022-12-13 17:59:38,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:59:38,948 INFO L225 Difference]: With dead ends: 31144 [2022-12-13 17:59:38,948 INFO L226 Difference]: Without dead ends: 17177 [2022-12-13 17:59:38,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 529 GetRequests, 527 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 17:59:38,988 INFO L413 NwaCegarLoop]: 4430 mSDtfsCounter, 5 mSDsluCounter, 8804 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 13234 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-13 17:59:38,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 13234 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-13 17:59:39,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17177 states. [2022-12-13 17:59:40,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17177 to 17161. [2022-12-13 17:59:40,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17161 states, 13239 states have (on average 1.4295641664778307) internal successors, (18926), 13334 states have internal predecessors, (18926), 3323 states have call successors, (3323), 594 states have call predecessors, (3323), 598 states have return successors, (3333), 3311 states have call predecessors, (3333), 3322 states have call successors, (3333) [2022-12-13 17:59:41,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17161 states to 17161 states and 25582 transitions. [2022-12-13 17:59:41,014 INFO L78 Accepts]: Start accepts. Automaton has 17161 states and 25582 transitions. Word has length 530 [2022-12-13 17:59:41,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:59:41,014 INFO L495 AbstractCegarLoop]: Abstraction has 17161 states and 25582 transitions. [2022-12-13 17:59:41,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.25) internal successors, (309), 4 states have internal predecessors, (309), 2 states have call successors, (65), 2 states have call predecessors, (65), 2 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) [2022-12-13 17:59:41,014 INFO L276 IsEmpty]: Start isEmpty. Operand 17161 states and 25582 transitions. [2022-12-13 17:59:41,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 531 [2022-12-13 17:59:41,054 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:59:41,054 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:59:41,070 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-12-13 17:59:41,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2022-12-13 17:59:41,256 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:59:41,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:59:41,257 INFO L85 PathProgramCache]: Analyzing trace with hash -763282767, now seen corresponding path program 1 times [2022-12-13 17:59:41,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:59:41,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423608586] [2022-12-13 17:59:41,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:59:41,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:59:41,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:41,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:59:41,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423608586] [2022-12-13 17:59:41,444 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-12-13 17:59:41,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [582295043] [2022-12-13 17:59:41,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:59:41,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:59:41,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:59:41,446 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:59:41,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-12-13 17:59:43,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:43,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 5768 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 17:59:43,060 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:59:43,168 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2022-12-13 17:59:43,168 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:59:43,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [582295043] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:59:43,168 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:59:43,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 17:59:43,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811231913] [2022-12-13 17:59:43,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:59:43,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 17:59:43,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:59:43,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 17:59:43,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 17:59:43,169 INFO L87 Difference]: Start difference. First operand 17161 states and 25582 transitions. Second operand has 4 states, 4 states have (on average 77.25) internal successors, (309), 3 states have internal predecessors, (309), 2 states have call successors, (65), 2 states have call predecessors, (65), 2 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) [2022-12-13 17:59:47,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:59:47,683 INFO L93 Difference]: Finished difference Result 31196 states and 46566 transitions. [2022-12-13 17:59:47,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 17:59:47,683 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 77.25) internal successors, (309), 3 states have internal predecessors, (309), 2 states have call successors, (65), 2 states have call predecessors, (65), 2 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) Word has length 530 [2022-12-13 17:59:47,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:59:47,750 INFO L225 Difference]: With dead ends: 31196 [2022-12-13 17:59:47,750 INFO L226 Difference]: Without dead ends: 17221 [2022-12-13 17:59:47,794 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 529 GetRequests, 527 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 17:59:47,795 INFO L413 NwaCegarLoop]: 4416 mSDtfsCounter, 4394 mSDsluCounter, 3235 mSDsCounter, 0 mSdLazyCounter, 1216 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4395 SdHoareTripleChecker+Valid, 7651 SdHoareTripleChecker+Invalid, 1221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-12-13 17:59:47,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4395 Valid, 7651 Invalid, 1221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1216 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-12-13 17:59:47,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17221 states. [2022-12-13 17:59:49,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17221 to 17173. [2022-12-13 17:59:49,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17173 states, 13251 states have (on average 1.4294770206022187) internal successors, (18942), 13346 states have internal predecessors, (18942), 3323 states have call successors, (3323), 594 states have call predecessors, (3323), 598 states have return successors, (3333), 3311 states have call predecessors, (3333), 3322 states have call successors, (3333) [2022-12-13 17:59:49,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17173 states to 17173 states and 25598 transitions. [2022-12-13 17:59:49,459 INFO L78 Accepts]: Start accepts. Automaton has 17173 states and 25598 transitions. Word has length 530 [2022-12-13 17:59:49,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:59:49,459 INFO L495 AbstractCegarLoop]: Abstraction has 17173 states and 25598 transitions. [2022-12-13 17:59:49,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.25) internal successors, (309), 3 states have internal predecessors, (309), 2 states have call successors, (65), 2 states have call predecessors, (65), 2 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) [2022-12-13 17:59:49,459 INFO L276 IsEmpty]: Start isEmpty. Operand 17173 states and 25598 transitions. [2022-12-13 17:59:49,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 533 [2022-12-13 17:59:49,500 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:59:49,500 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:59:49,517 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-12-13 17:59:49,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2022-12-13 17:59:49,702 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:59:49,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:59:49,704 INFO L85 PathProgramCache]: Analyzing trace with hash -236966795, now seen corresponding path program 1 times [2022-12-13 17:59:49,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:59:49,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446162798] [2022-12-13 17:59:49,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:59:49,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:59:49,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:49,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:59:49,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446162798] [2022-12-13 17:59:49,912 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-12-13 17:59:49,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [176355078] [2022-12-13 17:59:49,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:59:49,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:59:49,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:59:49,913 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:59:49,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-12-13 17:59:51,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:51,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 5783 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 17:59:51,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:59:51,541 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 88 proven. 1 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2022-12-13 17:59:51,541 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 17:59:51,716 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2022-12-13 17:59:51,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [176355078] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 17:59:51,716 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 17:59:51,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 8 [2022-12-13 17:59:51,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291076959] [2022-12-13 17:59:51,717 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 17:59:51,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 17:59:51,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:59:51,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 17:59:51,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-12-13 17:59:51,719 INFO L87 Difference]: Start difference. First operand 17173 states and 25598 transitions. Second operand has 8 states, 8 states have (on average 57.625) internal successors, (461), 8 states have internal predecessors, (461), 4 states have call successors, (127), 3 states have call predecessors, (127), 3 states have return successors, (126), 4 states have call predecessors, (126), 4 states have call successors, (126) [2022-12-13 18:00:00,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:00:00,653 INFO L93 Difference]: Finished difference Result 40748 states and 61904 transitions. [2022-12-13 18:00:00,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 18:00:00,653 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 57.625) internal successors, (461), 8 states have internal predecessors, (461), 4 states have call successors, (127), 3 states have call predecessors, (127), 3 states have return successors, (126), 4 states have call predecessors, (126), 4 states have call successors, (126) Word has length 532 [2022-12-13 18:00:00,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:00:00,728 INFO L225 Difference]: With dead ends: 40748 [2022-12-13 18:00:00,728 INFO L226 Difference]: Without dead ends: 26761 [2022-12-13 18:00:00,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1064 GetRequests, 1056 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=50, Unknown=0, NotChecked=0, Total=90 [2022-12-13 18:00:00,764 INFO L413 NwaCegarLoop]: 5070 mSDtfsCounter, 8341 mSDsluCounter, 11248 mSDsCounter, 0 mSdLazyCounter, 4869 mSolverCounterSat, 648 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8343 SdHoareTripleChecker+Valid, 16318 SdHoareTripleChecker+Invalid, 5517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 648 IncrementalHoareTripleChecker+Valid, 4869 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-12-13 18:00:00,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8343 Valid, 16318 Invalid, 5517 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [648 Valid, 4869 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-12-13 18:00:00,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26761 states. [2022-12-13 18:00:02,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26761 to 17261. [2022-12-13 18:00:02,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17261 states, 13339 states have (on average 1.428442911762501) internal successors, (19054), 13434 states have internal predecessors, (19054), 3323 states have call successors, (3323), 594 states have call predecessors, (3323), 598 states have return successors, (3333), 3311 states have call predecessors, (3333), 3322 states have call successors, (3333) [2022-12-13 18:00:02,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17261 states to 17261 states and 25710 transitions. [2022-12-13 18:00:02,594 INFO L78 Accepts]: Start accepts. Automaton has 17261 states and 25710 transitions. Word has length 532 [2022-12-13 18:00:02,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:00:02,594 INFO L495 AbstractCegarLoop]: Abstraction has 17261 states and 25710 transitions. [2022-12-13 18:00:02,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 57.625) internal successors, (461), 8 states have internal predecessors, (461), 4 states have call successors, (127), 3 states have call predecessors, (127), 3 states have return successors, (126), 4 states have call predecessors, (126), 4 states have call successors, (126) [2022-12-13 18:00:02,594 INFO L276 IsEmpty]: Start isEmpty. Operand 17261 states and 25710 transitions. [2022-12-13 18:00:02,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 543 [2022-12-13 18:00:02,634 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:00:02,634 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:00:02,653 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2022-12-13 18:00:02,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2022-12-13 18:00:02,837 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:00:02,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:00:02,838 INFO L85 PathProgramCache]: Analyzing trace with hash 111326721, now seen corresponding path program 2 times [2022-12-13 18:00:02,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:00:02,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955456771] [2022-12-13 18:00:02,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:00:02,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:00:02,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:00:03,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:00:03,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955456771] [2022-12-13 18:00:03,040 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-12-13 18:00:03,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1193506636] [2022-12-13 18:00:03,040 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 18:00:03,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:00:03,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:00:03,041 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:00:03,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-12-13 18:00:04,666 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 18:00:04,666 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 18:00:04,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 5996 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 18:00:04,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:00:04,722 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 60 proven. 4 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2022-12-13 18:00:04,722 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 18:00:04,863 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2022-12-13 18:00:04,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1193506636] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 18:00:04,863 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 18:00:04,864 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2022-12-13 18:00:04,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384191419] [2022-12-13 18:00:04,864 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 18:00:04,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 18:00:04,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:00:04,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 18:00:04,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 18:00:04,867 INFO L87 Difference]: Start difference. First operand 17261 states and 25710 transitions. Second operand has 6 states, 6 states have (on average 67.66666666666667) internal successors, (406), 6 states have internal predecessors, (406), 2 states have call successors, (114), 2 states have call predecessors, (114), 2 states have return successors, (113), 2 states have call predecessors, (113), 2 states have call successors, (113) [2022-12-13 18:00:07,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:00:07,651 INFO L93 Difference]: Finished difference Result 31460 states and 46898 transitions. [2022-12-13 18:00:07,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 18:00:07,654 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 67.66666666666667) internal successors, (406), 6 states have internal predecessors, (406), 2 states have call successors, (114), 2 states have call predecessors, (114), 2 states have return successors, (113), 2 states have call predecessors, (113), 2 states have call successors, (113) Word has length 542 [2022-12-13 18:00:07,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:00:07,720 INFO L225 Difference]: With dead ends: 31460 [2022-12-13 18:00:07,721 INFO L226 Difference]: Without dead ends: 17385 [2022-12-13 18:00:07,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1082 GetRequests, 1076 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 18:00:07,767 INFO L413 NwaCegarLoop]: 4428 mSDtfsCounter, 81 mSDsluCounter, 4424 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 8852 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-13 18:00:07,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 8852 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-13 18:00:07,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17385 states. [2022-12-13 18:00:09,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17385 to 17293. [2022-12-13 18:00:09,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17293 states, 13371 states have (on average 1.4274175454341484) internal successors, (19086), 13466 states have internal predecessors, (19086), 3323 states have call successors, (3323), 594 states have call predecessors, (3323), 598 states have return successors, (3333), 3311 states have call predecessors, (3333), 3322 states have call successors, (3333) [2022-12-13 18:00:09,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17293 states to 17293 states and 25742 transitions. [2022-12-13 18:00:09,565 INFO L78 Accepts]: Start accepts. Automaton has 17293 states and 25742 transitions. Word has length 542 [2022-12-13 18:00:09,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:00:09,565 INFO L495 AbstractCegarLoop]: Abstraction has 17293 states and 25742 transitions. [2022-12-13 18:00:09,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 67.66666666666667) internal successors, (406), 6 states have internal predecessors, (406), 2 states have call successors, (114), 2 states have call predecessors, (114), 2 states have return successors, (113), 2 states have call predecessors, (113), 2 states have call successors, (113) [2022-12-13 18:00:09,565 INFO L276 IsEmpty]: Start isEmpty. Operand 17293 states and 25742 transitions. [2022-12-13 18:00:09,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 551 [2022-12-13 18:00:09,603 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:00:09,603 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:00:09,620 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2022-12-13 18:00:09,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2022-12-13 18:00:09,806 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:00:09,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:00:09,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1077014657, now seen corresponding path program 3 times [2022-12-13 18:00:09,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:00:09,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145634502] [2022-12-13 18:00:09,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:00:09,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:00:09,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:00:10,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:00:10,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145634502] [2022-12-13 18:00:10,040 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-12-13 18:00:10,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1768616763] [2022-12-13 18:00:10,040 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 18:00:10,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:00:10,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:00:10,041 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:00:10,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-12-13 18:00:11,373 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-12-13 18:00:11,373 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 18:00:11,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 2338 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-13 18:00:11,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:00:11,424 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 308 trivial. 0 not checked. [2022-12-13 18:00:11,424 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 18:00:11,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1768616763] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:00:11,424 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:00:11,424 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 18:00:11,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522440464] [2022-12-13 18:00:11,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:00:11,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 18:00:11,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:00:11,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 18:00:11,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 18:00:11,426 INFO L87 Difference]: Start difference. First operand 17293 states and 25742 transitions. Second operand has 6 states, 6 states have (on average 49.666666666666664) internal successors, (298), 5 states have internal predecessors, (298), 2 states have call successors, (63), 2 states have call predecessors, (63), 3 states have return successors, (62), 3 states have call predecessors, (62), 2 states have call successors, (62) [2022-12-13 18:00:14,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:00:14,496 INFO L93 Difference]: Finished difference Result 22021 states and 33246 transitions. [2022-12-13 18:00:14,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 18:00:14,496 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 49.666666666666664) internal successors, (298), 5 states have internal predecessors, (298), 2 states have call successors, (63), 2 states have call predecessors, (63), 3 states have return successors, (62), 3 states have call predecessors, (62), 2 states have call successors, (62) Word has length 550 [2022-12-13 18:00:14,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:00:14,500 INFO L225 Difference]: With dead ends: 22021 [2022-12-13 18:00:14,500 INFO L226 Difference]: Without dead ends: 0 [2022-12-13 18:00:14,539 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 551 GetRequests, 546 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-13 18:00:14,539 INFO L413 NwaCegarLoop]: 5835 mSDtfsCounter, 2574 mSDsluCounter, 20358 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 398 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2575 SdHoareTripleChecker+Valid, 26193 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 398 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 18:00:14,540 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2575 Valid, 26193 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [398 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 18:00:14,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-13 18:00:14,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-13 18:00:14,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:14,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-13 18:00:14,541 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 550 [2022-12-13 18:00:14,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:00:14,542 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 18:00:14,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.666666666666664) internal successors, (298), 5 states have internal predecessors, (298), 2 states have call successors, (63), 2 states have call predecessors, (63), 3 states have return successors, (62), 3 states have call predecessors, (62), 2 states have call successors, (62) [2022-12-13 18:00:14,542 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-13 18:00:14,542 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-13 18:00:14,544 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-13 18:00:14,557 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2022-12-13 18:00:14,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea5ca9f-c020-4fb4-8fe0-890a48c3f39d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:00:14,750 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-13 18:00:31,104 WARN L233 SmtUtils]: Spent 15.80s on a formula simplification. DAG size of input: 130 DAG size of output: 126 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-12-13 18:00:45,717 WARN L233 SmtUtils]: Spent 14.61s on a formula simplification. DAG size of input: 130 DAG size of output: 126 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or)