./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--p54--p54usb.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d69c087-d9cf-490d-8285-0d55316cc2f6/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d69c087-d9cf-490d-8285-0d55316cc2f6/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_7d69c087-d9cf-490d-8285-0d55316cc2f6/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d69c087-d9cf-490d-8285-0d55316cc2f6/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--p54--p54usb.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d69c087-d9cf-490d-8285-0d55316cc2f6/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_7d69c087-d9cf-490d-8285-0d55316cc2f6/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 57d203c2bb9e5fb46a500992932f18e1bc69473edc196ab4ca3ccbbd153a7dab --- 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 14:39:36,186 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 14:39:36,188 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 14:39:36,206 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 14:39:36,207 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 14:39:36,208 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 14:39:36,209 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 14:39:36,211 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 14:39:36,212 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 14:39:36,213 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 14:39:36,214 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 14:39:36,215 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 14:39:36,215 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 14:39:36,216 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 14:39:36,217 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 14:39:36,219 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 14:39:36,219 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 14:39:36,220 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 14:39:36,222 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 14:39:36,224 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 14:39:36,225 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 14:39:36,226 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 14:39:36,227 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 14:39:36,228 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 14:39:36,232 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 14:39:36,232 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 14:39:36,232 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 14:39:36,233 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 14:39:36,234 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 14:39:36,235 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 14:39:36,235 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 14:39:36,236 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 14:39:36,236 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 14:39:36,237 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 14:39:36,238 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 14:39:36,238 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 14:39:36,239 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 14:39:36,239 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 14:39:36,239 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 14:39:36,240 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 14:39:36,240 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 14:39:36,241 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d69c087-d9cf-490d-8285-0d55316cc2f6/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-12-13 14:39:36,262 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 14:39:36,262 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 14:39:36,262 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 14:39:36,262 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 14:39:36,263 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 14:39:36,263 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 14:39:36,264 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 14:39:36,264 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 14:39:36,264 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 14:39:36,264 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 14:39:36,265 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 14:39:36,265 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 14:39:36,265 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 14:39:36,265 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 14:39:36,265 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 14:39:36,266 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 14:39:36,266 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 14:39:36,266 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 14:39:36,266 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 14:39:36,266 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 14:39:36,267 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 14:39:36,267 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 14:39:36,267 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 14:39:36,267 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 14:39:36,267 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 14:39:36,268 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 14:39:36,268 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 14:39:36,268 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 14:39:36,268 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 14:39:36,268 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 14:39:36,268 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 14:39:36,268 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 14:39:36,269 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_7d69c087-d9cf-490d-8285-0d55316cc2f6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d69c087-d9cf-490d-8285-0d55316cc2f6/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 57d203c2bb9e5fb46a500992932f18e1bc69473edc196ab4ca3ccbbd153a7dab [2022-12-13 14:39:36,454 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 14:39:36,471 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 14:39:36,473 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 14:39:36,474 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 14:39:36,474 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 14:39:36,475 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d69c087-d9cf-490d-8285-0d55316cc2f6/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--p54--p54usb.ko-entry_point.cil.out.i [2022-12-13 14:39:38,962 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 14:39:39,285 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 14:39:39,285 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d69c087-d9cf-490d-8285-0d55316cc2f6/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--p54--p54usb.ko-entry_point.cil.out.i [2022-12-13 14:39:39,307 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d69c087-d9cf-490d-8285-0d55316cc2f6/bin/uautomizer-uyxdKDjOR8/data/e02b8746d/989cd1256b464e7390071933c998725d/FLAG27ddd46b3 [2022-12-13 14:39:39,539 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d69c087-d9cf-490d-8285-0d55316cc2f6/bin/uautomizer-uyxdKDjOR8/data/e02b8746d/989cd1256b464e7390071933c998725d [2022-12-13 14:39:39,544 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 14:39:39,546 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 14:39:39,548 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 14:39:39,549 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 14:39:39,556 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 14:39:39,557 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:39:39" (1/1) ... [2022-12-13 14:39:39,558 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a0d3c51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:39:39, skipping insertion in model container [2022-12-13 14:39:39,559 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:39:39" (1/1) ... [2022-12-13 14:39:39,577 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 14:39:39,666 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 14:39:40,237 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-12-13 14:39:40,256 WARN L623 FunctionHandler]: Unknown extern function __msecs_to_jiffies [2022-12-13 14:39:40,265 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-13 14:39:40,349 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-12-13 14:39:40,350 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-13 14:39:40,404 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-13 14:39:40,437 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-12-13 14:39:40,440 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-12-13 14:39:40,450 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_irq [2022-12-13 14:39:40,501 WARN L623 FunctionHandler]: Unknown extern function skb_unlink [2022-12-13 14:39:40,502 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-13 14:39:40,503 WARN L623 FunctionHandler]: Unknown extern function skb_pull [2022-12-13 14:39:40,503 WARN L623 FunctionHandler]: Unknown extern function skb_pull [2022-12-13 14:39:40,503 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-13 14:39:40,504 WARN L623 FunctionHandler]: Unknown extern function p54_rx [2022-12-13 14:39:40,505 WARN L623 FunctionHandler]: Unknown extern function skb_push [2022-12-13 14:39:40,506 WARN L623 FunctionHandler]: Unknown extern function skb_push [2022-12-13 14:39:40,506 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-13 14:39:40,506 WARN L623 FunctionHandler]: Unknown extern function skb_trim [2022-12-13 14:39:40,507 WARN L623 FunctionHandler]: Unknown extern function skb_queue_tail [2022-12-13 14:39:40,507 WARN L623 FunctionHandler]: Unknown extern function usb_anchor_urb [2022-12-13 14:39:40,507 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-13 14:39:40,507 WARN L623 FunctionHandler]: Unknown extern function skb_unlink [2022-12-13 14:39:40,508 WARN L623 FunctionHandler]: Unknown extern function usb_unanchor_urb [2022-12-13 14:39:40,511 WARN L623 FunctionHandler]: Unknown extern function usb_ifnum_to_if [2022-12-13 14:39:40,512 WARN L623 FunctionHandler]: Unknown extern function p54_free_skb [2022-12-13 14:39:40,518 WARN L623 FunctionHandler]: Unknown extern function usb_kill_anchored_urbs [2022-12-13 14:39:40,526 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_urb [2022-12-13 14:39:40,527 WARN L623 FunctionHandler]: Unknown extern function skb_queue_tail [2022-12-13 14:39:40,527 WARN L623 FunctionHandler]: Unknown extern function usb_anchor_urb [2022-12-13 14:39:40,528 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-13 14:39:40,528 WARN L623 FunctionHandler]: Unknown extern function skb_unlink [2022-12-13 14:39:40,528 WARN L623 FunctionHandler]: Unknown extern function usb_unanchor_urb [2022-12-13 14:39:40,528 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-12-13 14:39:40,529 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-12-13 14:39:40,529 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-12-13 14:39:40,540 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_urb [2022-12-13 14:39:40,540 WARN L623 FunctionHandler]: Unknown extern function p54_free_skb [2022-12-13 14:39:40,542 WARN L623 FunctionHandler]: Unknown extern function usb_anchor_urb [2022-12-13 14:39:40,542 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-13 14:39:40,543 WARN L623 FunctionHandler]: Unknown extern function usb_unanchor_urb [2022-12-13 14:39:40,543 WARN L623 FunctionHandler]: Unknown extern function p54_free_skb [2022-12-13 14:39:40,543 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-12-13 14:39:40,547 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_urb [2022-12-13 14:39:40,548 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_urb [2022-12-13 14:39:40,550 WARN L623 FunctionHandler]: Unknown extern function usb_anchor_urb [2022-12-13 14:39:40,550 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-13 14:39:40,550 WARN L623 FunctionHandler]: Unknown extern function usb_unanchor_urb [2022-12-13 14:39:40,550 WARN L623 FunctionHandler]: Unknown extern function usb_anchor_urb [2022-12-13 14:39:40,551 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-13 14:39:40,551 WARN L623 FunctionHandler]: Unknown extern function usb_unanchor_urb [2022-12-13 14:39:40,551 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-12-13 14:39:40,551 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-12-13 14:39:40,551 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 14:39:40,551 WARN L623 FunctionHandler]: Unknown extern function p54_free_skb [2022-12-13 14:39:40,556 WARN L623 FunctionHandler]: Unknown extern function usb_bulk_msg [2022-12-13 14:39:40,560 WARN L623 FunctionHandler]: Unknown extern function usb_bulk_msg [2022-12-13 14:39:40,561 WARN L623 FunctionHandler]: Unknown extern function usb_bulk_msg [2022-12-13 14:39:40,564 WARN L623 FunctionHandler]: Unknown extern function usb_bulk_msg [2022-12-13 14:39:40,569 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 14:39:40,569 WARN L623 FunctionHandler]: Unknown extern function usb_reset_device [2022-12-13 14:39:40,570 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 14:39:40,573 WARN L623 FunctionHandler]: Unknown extern function kmemdup [2022-12-13 14:39:40,574 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 14:39:40,574 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 14:39:40,580 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-12-13 14:39:40,583 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 14:39:40,583 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-12-13 14:39:40,584 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 14:39:40,585 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-13 14:39:40,585 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-13 14:39:40,586 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 14:39:40,586 WARN L623 FunctionHandler]: Unknown extern function usb_bulk_msg [2022-12-13 14:39:40,586 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 14:39:40,587 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 14:39:40,588 WARN L623 FunctionHandler]: Unknown extern function usb_bulk_msg [2022-12-13 14:39:40,589 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 14:39:40,594 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-13 14:39:40,594 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-13 14:39:40,595 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-13 14:39:40,598 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-13 14:39:40,599 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-13 14:39:40,600 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-13 14:39:40,601 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 14:39:40,603 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-13 14:39:40,604 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 14:39:40,606 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-13 14:39:40,606 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-13 14:39:40,608 WARN L623 FunctionHandler]: Unknown extern function usb_interrupt_msg [2022-12-13 14:39:40,609 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 14:39:40,619 WARN L623 FunctionHandler]: Unknown extern function p54_parse_firmware [2022-12-13 14:39:40,619 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 14:39:40,623 WARN L623 FunctionHandler]: Unknown extern function p54_read_eeprom [2022-12-13 14:39:40,623 WARN L623 FunctionHandler]: Unknown extern function p54_register_common [2022-12-13 14:39:40,627 WARN L623 FunctionHandler]: Unknown extern function complete [2022-12-13 14:39:40,627 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 14:39:40,628 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 14:39:40,628 WARN L623 FunctionHandler]: Unknown extern function device_release_driver [2022-12-13 14:39:40,629 WARN L623 FunctionHandler]: Unknown extern function usb_put_dev [2022-12-13 14:39:40,633 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-13 14:39:40,633 WARN L623 FunctionHandler]: Unknown extern function usb_get_dev [2022-12-13 14:39:40,634 WARN L623 FunctionHandler]: Unknown extern function request_firmware_nowait [2022-12-13 14:39:40,634 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 14:39:40,635 WARN L623 FunctionHandler]: Unknown extern function usb_put_dev [2022-12-13 14:39:40,638 WARN L623 FunctionHandler]: Unknown extern function p54_init_common [2022-12-13 14:39:40,639 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 14:39:40,639 WARN L623 FunctionHandler]: Unknown extern function usb_get_dev [2022-12-13 14:39:40,642 WARN L623 FunctionHandler]: Unknown extern function usb_put_dev [2022-12-13 14:39:40,642 WARN L623 FunctionHandler]: Unknown extern function p54_free_common [2022-12-13 14:39:40,646 WARN L623 FunctionHandler]: Unknown extern function wait_for_completion [2022-12-13 14:39:40,646 WARN L623 FunctionHandler]: Unknown extern function p54_unregister_common [2022-12-13 14:39:40,646 WARN L623 FunctionHandler]: Unknown extern function usb_put_dev [2022-12-13 14:39:40,646 WARN L623 FunctionHandler]: Unknown extern function release_firmware [2022-12-13 14:39:40,647 WARN L623 FunctionHandler]: Unknown extern function p54_free_common [2022-12-13 14:39:40,658 WARN L623 FunctionHandler]: Unknown extern function ieee80211_restart_hw [2022-12-13 14:39:40,678 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-13 14:39:40,681 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-13 14:39:40,682 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 14:39:40,682 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-13 14:39:40,682 WARN L623 FunctionHandler]: Unknown extern function mutex_trylock [2022-12-13 14:39:40,683 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 14:39:40,683 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 14:39:40,683 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-13 14:39:40,684 WARN L623 FunctionHandler]: Unknown extern function __ldv_usb_unlock_device [2022-12-13 14:39:40,684 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-12-13 14:39:40,684 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-12-13 14:39:40,688 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_7d69c087-d9cf-490d-8285-0d55316cc2f6/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--p54--p54usb.ko-entry_point.cil.out.i[258961,258974] [2022-12-13 14:39:40,821 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-13 14:39:40,822 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-13 14:39:40,826 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-13 14:39:40,827 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-13 14:39:40,828 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-13 14:39:40,828 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-13 14:39:40,829 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-13 14:39:40,829 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-13 14:39:40,830 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-13 14:39:40,834 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:39:40,866 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 14:39:41,000 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-12-13 14:39:41,001 WARN L623 FunctionHandler]: Unknown extern function __msecs_to_jiffies [2022-12-13 14:39:41,001 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-13 14:39:41,006 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-12-13 14:39:41,006 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-13 14:39:41,010 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-13 14:39:41,012 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-12-13 14:39:41,013 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-12-13 14:39:41,013 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_irq [2022-12-13 14:39:41,025 WARN L623 FunctionHandler]: Unknown extern function skb_unlink [2022-12-13 14:39:41,026 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-13 14:39:41,026 WARN L623 FunctionHandler]: Unknown extern function skb_pull [2022-12-13 14:39:41,027 WARN L623 FunctionHandler]: Unknown extern function skb_pull [2022-12-13 14:39:41,027 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-13 14:39:41,027 WARN L623 FunctionHandler]: Unknown extern function p54_rx [2022-12-13 14:39:41,029 WARN L623 FunctionHandler]: Unknown extern function skb_push [2022-12-13 14:39:41,029 WARN L623 FunctionHandler]: Unknown extern function skb_push [2022-12-13 14:39:41,029 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-13 14:39:41,029 WARN L623 FunctionHandler]: Unknown extern function skb_trim [2022-12-13 14:39:41,030 WARN L623 FunctionHandler]: Unknown extern function skb_queue_tail [2022-12-13 14:39:41,030 WARN L623 FunctionHandler]: Unknown extern function usb_anchor_urb [2022-12-13 14:39:41,030 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-13 14:39:41,031 WARN L623 FunctionHandler]: Unknown extern function skb_unlink [2022-12-13 14:39:41,031 WARN L623 FunctionHandler]: Unknown extern function usb_unanchor_urb [2022-12-13 14:39:41,032 WARN L623 FunctionHandler]: Unknown extern function usb_ifnum_to_if [2022-12-13 14:39:41,032 WARN L623 FunctionHandler]: Unknown extern function p54_free_skb [2022-12-13 14:39:41,032 WARN L623 FunctionHandler]: Unknown extern function usb_kill_anchored_urbs [2022-12-13 14:39:41,034 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_urb [2022-12-13 14:39:41,035 WARN L623 FunctionHandler]: Unknown extern function skb_queue_tail [2022-12-13 14:39:41,035 WARN L623 FunctionHandler]: Unknown extern function usb_anchor_urb [2022-12-13 14:39:41,035 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-13 14:39:41,035 WARN L623 FunctionHandler]: Unknown extern function skb_unlink [2022-12-13 14:39:41,036 WARN L623 FunctionHandler]: Unknown extern function usb_unanchor_urb [2022-12-13 14:39:41,036 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-12-13 14:39:41,036 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-12-13 14:39:41,036 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-12-13 14:39:41,038 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_urb [2022-12-13 14:39:41,039 WARN L623 FunctionHandler]: Unknown extern function p54_free_skb [2022-12-13 14:39:41,040 WARN L623 FunctionHandler]: Unknown extern function usb_anchor_urb [2022-12-13 14:39:41,040 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-13 14:39:41,040 WARN L623 FunctionHandler]: Unknown extern function usb_unanchor_urb [2022-12-13 14:39:41,041 WARN L623 FunctionHandler]: Unknown extern function p54_free_skb [2022-12-13 14:39:41,041 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-12-13 14:39:41,042 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_urb [2022-12-13 14:39:41,042 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_urb [2022-12-13 14:39:41,044 WARN L623 FunctionHandler]: Unknown extern function usb_anchor_urb [2022-12-13 14:39:41,045 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-13 14:39:41,045 WARN L623 FunctionHandler]: Unknown extern function usb_unanchor_urb [2022-12-13 14:39:41,045 WARN L623 FunctionHandler]: Unknown extern function usb_anchor_urb [2022-12-13 14:39:41,045 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-13 14:39:41,046 WARN L623 FunctionHandler]: Unknown extern function usb_unanchor_urb [2022-12-13 14:39:41,046 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-12-13 14:39:41,046 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-12-13 14:39:41,046 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 14:39:41,046 WARN L623 FunctionHandler]: Unknown extern function p54_free_skb [2022-12-13 14:39:41,048 WARN L623 FunctionHandler]: Unknown extern function usb_bulk_msg [2022-12-13 14:39:41,049 WARN L623 FunctionHandler]: Unknown extern function usb_bulk_msg [2022-12-13 14:39:41,050 WARN L623 FunctionHandler]: Unknown extern function usb_bulk_msg [2022-12-13 14:39:41,050 WARN L623 FunctionHandler]: Unknown extern function usb_bulk_msg [2022-12-13 14:39:41,052 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 14:39:41,052 WARN L623 FunctionHandler]: Unknown extern function usb_reset_device [2022-12-13 14:39:41,053 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 14:39:41,053 WARN L623 FunctionHandler]: Unknown extern function kmemdup [2022-12-13 14:39:41,054 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 14:39:41,054 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 14:39:41,058 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-12-13 14:39:41,060 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 14:39:41,060 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-12-13 14:39:41,061 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 14:39:41,062 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-13 14:39:41,062 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-13 14:39:41,063 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 14:39:41,063 WARN L623 FunctionHandler]: Unknown extern function usb_bulk_msg [2022-12-13 14:39:41,064 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 14:39:41,065 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 14:39:41,066 WARN L623 FunctionHandler]: Unknown extern function usb_bulk_msg [2022-12-13 14:39:41,066 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 14:39:41,069 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-13 14:39:41,069 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-13 14:39:41,070 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-13 14:39:41,073 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-13 14:39:41,074 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-13 14:39:41,074 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-13 14:39:41,076 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 14:39:41,078 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-13 14:39:41,078 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 14:39:41,080 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-13 14:39:41,081 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-13 14:39:41,082 WARN L623 FunctionHandler]: Unknown extern function usb_interrupt_msg [2022-12-13 14:39:41,083 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 14:39:41,085 WARN L623 FunctionHandler]: Unknown extern function p54_parse_firmware [2022-12-13 14:39:41,085 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 14:39:41,086 WARN L623 FunctionHandler]: Unknown extern function p54_read_eeprom [2022-12-13 14:39:41,086 WARN L623 FunctionHandler]: Unknown extern function p54_register_common [2022-12-13 14:39:41,087 WARN L623 FunctionHandler]: Unknown extern function complete [2022-12-13 14:39:41,087 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 14:39:41,089 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 14:39:41,089 WARN L623 FunctionHandler]: Unknown extern function device_release_driver [2022-12-13 14:39:41,089 WARN L623 FunctionHandler]: Unknown extern function usb_put_dev [2022-12-13 14:39:41,090 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-13 14:39:41,091 WARN L623 FunctionHandler]: Unknown extern function usb_get_dev [2022-12-13 14:39:41,091 WARN L623 FunctionHandler]: Unknown extern function request_firmware_nowait [2022-12-13 14:39:41,091 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 14:39:41,092 WARN L623 FunctionHandler]: Unknown extern function usb_put_dev [2022-12-13 14:39:41,092 WARN L623 FunctionHandler]: Unknown extern function p54_init_common [2022-12-13 14:39:41,093 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 14:39:41,093 WARN L623 FunctionHandler]: Unknown extern function usb_get_dev [2022-12-13 14:39:41,095 WARN L623 FunctionHandler]: Unknown extern function usb_put_dev [2022-12-13 14:39:41,095 WARN L623 FunctionHandler]: Unknown extern function p54_free_common [2022-12-13 14:39:41,096 WARN L623 FunctionHandler]: Unknown extern function wait_for_completion [2022-12-13 14:39:41,096 WARN L623 FunctionHandler]: Unknown extern function p54_unregister_common [2022-12-13 14:39:41,096 WARN L623 FunctionHandler]: Unknown extern function usb_put_dev [2022-12-13 14:39:41,097 WARN L623 FunctionHandler]: Unknown extern function release_firmware [2022-12-13 14:39:41,097 WARN L623 FunctionHandler]: Unknown extern function p54_free_common [2022-12-13 14:39:41,099 WARN L623 FunctionHandler]: Unknown extern function ieee80211_restart_hw [2022-12-13 14:39:41,102 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-13 14:39:41,104 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-13 14:39:41,104 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 14:39:41,105 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-13 14:39:41,105 WARN L623 FunctionHandler]: Unknown extern function mutex_trylock [2022-12-13 14:39:41,105 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 14:39:41,106 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 14:39:41,106 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-13 14:39:41,106 WARN L623 FunctionHandler]: Unknown extern function __ldv_usb_unlock_device [2022-12-13 14:39:41,107 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-12-13 14:39:41,107 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-12-13 14:39:41,107 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_7d69c087-d9cf-490d-8285-0d55316cc2f6/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--p54--p54usb.ko-entry_point.cil.out.i[258961,258974] [2022-12-13 14:39:41,118 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-13 14:39:41,122 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-13 14:39:41,124 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-13 14:39:41,124 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-13 14:39:41,125 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-13 14:39:41,126 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-13 14:39:41,126 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-13 14:39:41,127 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-13 14:39:41,127 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-13 14:39:41,128 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:39:41,205 INFO L208 MainTranslator]: Completed translation [2022-12-13 14:39:41,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:39:41 WrapperNode [2022-12-13 14:39:41,205 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 14:39:41,206 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 14:39:41,207 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 14:39:41,207 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 14:39:41,214 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:39:41" (1/1) ... [2022-12-13 14:39:41,255 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:39:41" (1/1) ... [2022-12-13 14:39:41,349 INFO L138 Inliner]: procedures = 217, calls = 1688, calls flagged for inlining = 75, calls inlined = 52, statements flattened = 3514 [2022-12-13 14:39:41,350 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 14:39:41,350 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 14:39:41,351 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 14:39:41,351 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 14:39:41,360 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:39:41" (1/1) ... [2022-12-13 14:39:41,360 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:39:41" (1/1) ... [2022-12-13 14:39:41,379 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:39:41" (1/1) ... [2022-12-13 14:39:41,379 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:39:41" (1/1) ... [2022-12-13 14:39:41,463 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:39:41" (1/1) ... [2022-12-13 14:39:41,476 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:39:41" (1/1) ... [2022-12-13 14:39:41,492 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:39:41" (1/1) ... [2022-12-13 14:39:41,500 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:39:41" (1/1) ... [2022-12-13 14:39:41,516 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 14:39:41,517 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 14:39:41,517 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 14:39:41,517 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 14:39:41,518 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:39:41" (1/1) ... [2022-12-13 14:39:41,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 14:39:41,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d69c087-d9cf-490d-8285-0d55316cc2f6/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:39:41,542 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d69c087-d9cf-490d-8285-0d55316cc2f6/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 14:39:41,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d69c087-d9cf-490d-8285-0d55316cc2f6/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 14:39:41,579 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2022-12-13 14:39:41,579 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2022-12-13 14:39:41,579 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2022-12-13 14:39:41,579 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2022-12-13 14:39:41,579 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-12-13 14:39:41,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-13 14:39:41,579 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-12-13 14:39:41,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-12-13 14:39:41,580 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-12-13 14:39:41,580 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-12-13 14:39:41,580 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_dev [2022-12-13 14:39:41,580 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_dev [2022-12-13 14:39:41,580 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_dev [2022-12-13 14:39:41,580 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_dev [2022-12-13 14:39:41,580 INFO L130 BoogieDeclarations]: Found specification of procedure p54_free_common [2022-12-13 14:39:41,580 INFO L138 BoogieDeclarations]: Found implementation of procedure p54_free_common [2022-12-13 14:39:41,581 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_stop [2022-12-13 14:39:41,581 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_stop [2022-12-13 14:39:41,581 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-13 14:39:41,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-13 14:39:41,581 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2022-12-13 14:39:41,581 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2022-12-13 14:39:41,581 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-12-13 14:39:41,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-12-13 14:39:41,582 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-13 14:39:41,582 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-13 14:39:41,582 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-13 14:39:41,582 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-13 14:39:41,582 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2022-12-13 14:39:41,582 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2022-12-13 14:39:41,582 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-12-13 14:39:41,582 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-12-13 14:39:41,582 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 14:39:41,583 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-12-13 14:39:41,583 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-13 14:39:41,583 INFO L130 BoogieDeclarations]: Found specification of procedure p54_find_type [2022-12-13 14:39:41,583 INFO L138 BoogieDeclarations]: Found implementation of procedure p54_find_type [2022-12-13 14:39:41,583 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2022-12-13 14:39:41,583 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2022-12-13 14:39:41,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 14:39:41,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-13 14:39:41,583 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_open [2022-12-13 14:39:41,584 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_open [2022-12-13 14:39:41,584 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-12-13 14:39:41,584 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-12-13 14:39:41,584 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2022-12-13 14:39:41,584 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2022-12-13 14:39:41,584 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_post_reset [2022-12-13 14:39:41,584 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_post_reset [2022-12-13 14:39:41,584 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2022-12-13 14:39:41,584 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2022-12-13 14:39:41,585 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-12-13 14:39:41,585 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-12-13 14:39:41,585 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-12-13 14:39:41,585 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_disconnect [2022-12-13 14:39:41,585 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_disconnect [2022-12-13 14:39:41,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-13 14:39:41,585 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2022-12-13 14:39:41,585 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2022-12-13 14:39:41,585 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 14:39:41,586 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_negative [2022-12-13 14:39:41,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_negative [2022-12-13 14:39:41,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-12-13 14:39:41,586 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-12-13 14:39:41,586 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-12-13 14:39:41,586 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-12-13 14:39:41,586 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-12-13 14:39:41,586 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-12-13 14:39:41,586 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2022-12-13 14:39:41,587 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2022-12-13 14:39:41,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 14:39:41,587 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_pre_reset [2022-12-13 14:39:41,587 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_pre_reset [2022-12-13 14:39:41,587 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-12-13 14:39:41,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-12-13 14:39:41,587 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-12-13 14:39:41,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-12-13 14:39:41,587 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 14:39:41,588 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 14:39:41,588 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_read [2022-12-13 14:39:41,588 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_read [2022-12-13 14:39:41,588 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_write [2022-12-13 14:39:41,588 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_write [2022-12-13 14:39:41,588 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-12-13 14:39:41,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-12-13 14:39:41,588 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-12-13 14:39:41,588 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-12-13 14:39:41,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-13 14:39:41,589 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_udev_of_p54u_priv [2022-12-13 14:39:41,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_udev_of_p54u_priv [2022-12-13 14:39:41,589 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_resume [2022-12-13 14:39:41,589 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_resume [2022-12-13 14:39:41,589 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-12-13 14:39:41,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-12-13 14:39:41,589 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-12-13 14:39:41,589 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-12-13 14:39:41,590 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2022-12-13 14:39:41,590 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2022-12-13 14:39:41,590 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_free_urbs [2022-12-13 14:39:41,590 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_free_urbs [2022-12-13 14:39:41,590 INFO L130 BoogieDeclarations]: Found specification of procedure skb_unlink [2022-12-13 14:39:41,590 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_unlink [2022-12-13 14:39:41,590 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-12-13 14:39:41,590 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-12-13 14:39:41,591 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_bulk_msg [2022-12-13 14:39:41,591 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_bulk_msg [2022-12-13 14:39:41,591 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-12-13 14:39:41,591 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-12-13 14:39:41,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 14:39:41,591 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2022-12-13 14:39:41,591 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2022-12-13 14:39:41,591 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2022-12-13 14:39:41,591 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2022-12-13 14:39:41,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 14:39:41,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 14:39:41,937 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 14:39:41,939 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 14:39:42,108 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-12-13 14:40:21,938 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 14:40:21,946 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 14:40:21,946 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 14:40:21,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:40:21 BoogieIcfgContainer [2022-12-13 14:40:21,948 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 14:40:21,950 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 14:40:21,950 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 14:40:21,954 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 14:40:21,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 02:39:39" (1/3) ... [2022-12-13 14:40:21,955 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bdbce0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:40:21, skipping insertion in model container [2022-12-13 14:40:21,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:39:41" (2/3) ... [2022-12-13 14:40:21,955 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bdbce0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:40:21, skipping insertion in model container [2022-12-13 14:40:21,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:40:21" (3/3) ... [2022-12-13 14:40:21,956 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--p54--p54usb.ko-entry_point.cil.out.i [2022-12-13 14:40:21,973 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 14:40:21,974 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 14:40:22,022 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 14:40:22,027 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;@2f6c1d92, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 14:40:22,027 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 14:40:22,035 INFO L276 IsEmpty]: Start isEmpty. Operand has 729 states, 516 states have (on average 1.3488372093023255) internal successors, (696), 540 states have internal predecessors, (696), 163 states have call successors, (163), 49 states have call predecessors, (163), 48 states have return successors, (159), 159 states have call predecessors, (159), 159 states have call successors, (159) [2022-12-13 14:40:22,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-12-13 14:40:22,042 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:40:22,042 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] [2022-12-13 14:40:22,043 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:40:22,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:40:22,046 INFO L85 PathProgramCache]: Analyzing trace with hash 593702446, now seen corresponding path program 1 times [2022-12-13 14:40:22,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:40:22,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872193489] [2022-12-13 14:40:22,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:40:22,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:40:22,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:22,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 14:40:23,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:23,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:40:23,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:23,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 14:40:23,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:23,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 14:40:23,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:23,067 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 14:40:23,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:40:23,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872193489] [2022-12-13 14:40:23,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872193489] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:40:23,069 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:40:23,069 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 14:40:23,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704169285] [2022-12-13 14:40:23,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:40:23,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 14:40:23,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:40:23,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 14:40:23,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 14:40:23,106 INFO L87 Difference]: Start difference. First operand has 729 states, 516 states have (on average 1.3488372093023255) internal successors, (696), 540 states have internal predecessors, (696), 163 states have call successors, (163), 49 states have call predecessors, (163), 48 states have return successors, (159), 159 states have call predecessors, (159), 159 states have call successors, (159) Second operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (5), 5 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 14:40:25,207 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 14:40:27,212 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 14:40:29,222 WARN L539 Checker$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 14:40:31,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:40:31,895 INFO L93 Difference]: Finished difference Result 2359 states and 3441 transitions. [2022-12-13 14:40:31,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 14:40:31,897 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (5), 5 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 39 [2022-12-13 14:40:31,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:40:31,920 INFO L225 Difference]: With dead ends: 2359 [2022-12-13 14:40:31,920 INFO L226 Difference]: Without dead ends: 1619 [2022-12-13 14:40:31,930 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-12-13 14:40:31,933 INFO L413 NwaCegarLoop]: 942 mSDtfsCounter, 1749 mSDsluCounter, 1900 mSDsCounter, 0 mSdLazyCounter, 1128 mSolverCounterSat, 918 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1842 SdHoareTripleChecker+Valid, 2842 SdHoareTripleChecker+Invalid, 2049 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 918 IncrementalHoareTripleChecker+Valid, 1128 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2022-12-13 14:40:31,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1842 Valid, 2842 Invalid, 2049 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [918 Valid, 1128 Invalid, 3 Unknown, 0 Unchecked, 8.5s Time] [2022-12-13 14:40:31,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1619 states. [2022-12-13 14:40:32,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1619 to 1405. [2022-12-13 14:40:32,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1405 states, 1001 states have (on average 1.3326673326673326) internal successors, (1334), 1032 states have internal predecessors, (1334), 309 states have call successors, (309), 95 states have call predecessors, (309), 94 states have return successors, (303), 303 states have call predecessors, (303), 303 states have call successors, (303) [2022-12-13 14:40:32,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1405 states to 1405 states and 1946 transitions. [2022-12-13 14:40:32,092 INFO L78 Accepts]: Start accepts. Automaton has 1405 states and 1946 transitions. Word has length 39 [2022-12-13 14:40:32,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:40:32,092 INFO L495 AbstractCegarLoop]: Abstraction has 1405 states and 1946 transitions. [2022-12-13 14:40:32,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (5), 5 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 14:40:32,093 INFO L276 IsEmpty]: Start isEmpty. Operand 1405 states and 1946 transitions. [2022-12-13 14:40:32,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-12-13 14:40:32,096 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:40:32,096 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:40:32,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 14:40:32,097 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:40:32,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:40:32,097 INFO L85 PathProgramCache]: Analyzing trace with hash -348083403, now seen corresponding path program 1 times [2022-12-13 14:40:32,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:40:32,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283598089] [2022-12-13 14:40:32,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:40:32,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:40:32,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:32,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 14:40:32,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:32,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:40:32,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:32,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 14:40:32,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:32,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 14:40:32,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:32,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 14:40:32,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:32,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:40:32,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:32,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 14:40:32,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:32,743 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-13 14:40:32,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:40:32,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283598089] [2022-12-13 14:40:32,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283598089] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:40:32,744 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:40:32,744 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 14:40:32,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647249032] [2022-12-13 14:40:32,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:40:32,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 14:40:32,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:40:32,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 14:40:32,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 14:40:32,747 INFO L87 Difference]: Start difference. First operand 1405 states and 1946 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (6), 5 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-12-13 14:40:34,810 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 14:40:36,813 WARN L539 Checker$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 14:40:38,832 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 14:40:40,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:40:40,143 INFO L93 Difference]: Finished difference Result 1637 states and 2273 transitions. [2022-12-13 14:40:40,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 14:40:40,143 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (6), 5 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 59 [2022-12-13 14:40:40,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:40:40,153 INFO L225 Difference]: With dead ends: 1637 [2022-12-13 14:40:40,154 INFO L226 Difference]: Without dead ends: 1626 [2022-12-13 14:40:40,155 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-12-13 14:40:40,156 INFO L413 NwaCegarLoop]: 819 mSDtfsCounter, 1617 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 743 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1694 SdHoareTripleChecker+Valid, 1392 SdHoareTripleChecker+Invalid, 1158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 743 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-12-13 14:40:40,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1694 Valid, 1392 Invalid, 1158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [743 Valid, 412 Invalid, 3 Unknown, 0 Unchecked, 7.2s Time] [2022-12-13 14:40:40,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1626 states. [2022-12-13 14:40:40,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1626 to 1405. [2022-12-13 14:40:40,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1405 states, 1001 states have (on average 1.3316683316683318) internal successors, (1333), 1032 states have internal predecessors, (1333), 309 states have call successors, (309), 95 states have call predecessors, (309), 94 states have return successors, (303), 303 states have call predecessors, (303), 303 states have call successors, (303) [2022-12-13 14:40:40,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1405 states to 1405 states and 1945 transitions. [2022-12-13 14:40:40,222 INFO L78 Accepts]: Start accepts. Automaton has 1405 states and 1945 transitions. Word has length 59 [2022-12-13 14:40:40,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:40:40,222 INFO L495 AbstractCegarLoop]: Abstraction has 1405 states and 1945 transitions. [2022-12-13 14:40:40,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (6), 5 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-12-13 14:40:40,222 INFO L276 IsEmpty]: Start isEmpty. Operand 1405 states and 1945 transitions. [2022-12-13 14:40:40,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-12-13 14:40:40,223 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:40:40,224 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:40:40,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 14:40:40,224 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:40:40,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:40:40,224 INFO L85 PathProgramCache]: Analyzing trace with hash -290825101, now seen corresponding path program 1 times [2022-12-13 14:40:40,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:40:40,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321466080] [2022-12-13 14:40:40,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:40:40,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:40:40,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:40,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 14:40:40,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:40,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:40:40,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:40,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 14:40:40,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:40,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 14:40:40,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:40,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 14:40:40,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:40,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:40:40,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:40,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 14:40:40,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:40,763 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-13 14:40:40,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:40:40,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321466080] [2022-12-13 14:40:40,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321466080] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:40:40,764 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:40:40,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 14:40:40,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924781811] [2022-12-13 14:40:40,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:40:40,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 14:40:40,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:40:40,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 14:40:40,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 14:40:40,766 INFO L87 Difference]: Start difference. First operand 1405 states and 1945 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (6), 5 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 14:40:42,827 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 14:40:44,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:40:44,235 INFO L93 Difference]: Finished difference Result 1617 states and 2247 transitions. [2022-12-13 14:40:44,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 14:40:44,235 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (6), 5 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 59 [2022-12-13 14:40:44,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:40:44,241 INFO L225 Difference]: With dead ends: 1617 [2022-12-13 14:40:44,241 INFO L226 Difference]: Without dead ends: 1614 [2022-12-13 14:40:44,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-12-13 14:40:44,242 INFO L413 NwaCegarLoop]: 807 mSDtfsCounter, 1342 mSDsluCounter, 1029 mSDsCounter, 0 mSdLazyCounter, 571 mSolverCounterSat, 514 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1417 SdHoareTripleChecker+Valid, 1836 SdHoareTripleChecker+Invalid, 1086 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 514 IncrementalHoareTripleChecker+Valid, 571 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-12-13 14:40:44,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1417 Valid, 1836 Invalid, 1086 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [514 Valid, 571 Invalid, 1 Unknown, 0 Unchecked, 3.3s Time] [2022-12-13 14:40:44,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1614 states. [2022-12-13 14:40:44,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1614 to 1404. [2022-12-13 14:40:44,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1404 states, 1001 states have (on average 1.3306693306693307) internal successors, (1332), 1031 states have internal predecessors, (1332), 308 states have call successors, (308), 95 states have call predecessors, (308), 94 states have return successors, (303), 303 states have call predecessors, (303), 303 states have call successors, (303) [2022-12-13 14:40:44,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1404 states to 1404 states and 1943 transitions. [2022-12-13 14:40:44,300 INFO L78 Accepts]: Start accepts. Automaton has 1404 states and 1943 transitions. Word has length 59 [2022-12-13 14:40:44,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:40:44,300 INFO L495 AbstractCegarLoop]: Abstraction has 1404 states and 1943 transitions. [2022-12-13 14:40:44,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (6), 5 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 14:40:44,300 INFO L276 IsEmpty]: Start isEmpty. Operand 1404 states and 1943 transitions. [2022-12-13 14:40:44,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-12-13 14:40:44,301 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:40:44,302 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:40:44,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 14:40:44,302 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:40:44,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:40:44,302 INFO L85 PathProgramCache]: Analyzing trace with hash -425857174, now seen corresponding path program 1 times [2022-12-13 14:40:44,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:40:44,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867998461] [2022-12-13 14:40:44,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:40:44,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:40:44,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:44,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 14:40:44,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:44,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:40:44,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:44,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 14:40:44,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:44,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 14:40:44,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:44,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 14:40:44,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:44,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:40:44,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:44,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 14:40:44,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:44,775 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-13 14:40:44,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:40:44,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867998461] [2022-12-13 14:40:44,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867998461] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:40:44,776 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:40:44,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 14:40:44,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312643081] [2022-12-13 14:40:44,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:40:44,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 14:40:44,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:40:44,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 14:40:44,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 14:40:44,777 INFO L87 Difference]: Start difference. First operand 1404 states and 1943 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (6), 5 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 14:40:46,826 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 14:40:48,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:40:48,042 INFO L93 Difference]: Finished difference Result 1616 states and 2245 transitions. [2022-12-13 14:40:48,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 14:40:48,043 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (6), 5 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 60 [2022-12-13 14:40:48,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:40:48,050 INFO L225 Difference]: With dead ends: 1616 [2022-12-13 14:40:48,050 INFO L226 Difference]: Without dead ends: 1613 [2022-12-13 14:40:48,051 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-12-13 14:40:48,051 INFO L413 NwaCegarLoop]: 799 mSDtfsCounter, 1605 mSDsluCounter, 551 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 743 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1680 SdHoareTripleChecker+Valid, 1350 SdHoareTripleChecker+Invalid, 1151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 743 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-12-13 14:40:48,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1680 Valid, 1350 Invalid, 1151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [743 Valid, 407 Invalid, 1 Unknown, 0 Unchecked, 3.1s Time] [2022-12-13 14:40:48,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1613 states. [2022-12-13 14:40:48,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1613 to 1403. [2022-12-13 14:40:48,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1403 states, 1001 states have (on average 1.3296703296703296) internal successors, (1331), 1030 states have internal predecessors, (1331), 307 states have call successors, (307), 95 states have call predecessors, (307), 94 states have return successors, (303), 303 states have call predecessors, (303), 303 states have call successors, (303) [2022-12-13 14:40:48,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1403 states to 1403 states and 1941 transitions. [2022-12-13 14:40:48,113 INFO L78 Accepts]: Start accepts. Automaton has 1403 states and 1941 transitions. Word has length 60 [2022-12-13 14:40:48,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:40:48,113 INFO L495 AbstractCegarLoop]: Abstraction has 1403 states and 1941 transitions. [2022-12-13 14:40:48,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (6), 5 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 14:40:48,113 INFO L276 IsEmpty]: Start isEmpty. Operand 1403 states and 1941 transitions. [2022-12-13 14:40:48,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-12-13 14:40:48,114 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:40:48,114 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:40:48,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 14:40:48,114 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:40:48,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:40:48,115 INFO L85 PathProgramCache]: Analyzing trace with hash -316879274, now seen corresponding path program 1 times [2022-12-13 14:40:48,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:40:48,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667972860] [2022-12-13 14:40:48,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:40:48,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:40:48,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:48,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 14:40:48,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:48,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:40:48,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:48,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 14:40:48,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:48,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 14:40:48,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:48,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 14:40:48,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:48,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:40:48,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:48,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 14:40:48,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:48,720 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-13 14:40:48,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:40:48,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667972860] [2022-12-13 14:40:48,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667972860] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:40:48,721 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:40:48,721 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 14:40:48,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131392613] [2022-12-13 14:40:48,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:40:48,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 14:40:48,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:40:48,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 14:40:48,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 14:40:48,722 INFO L87 Difference]: Start difference. First operand 1403 states and 1941 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (6), 5 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 14:40:50,778 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 14:40:51,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:40:51,965 INFO L93 Difference]: Finished difference Result 1615 states and 2243 transitions. [2022-12-13 14:40:51,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 14:40:51,965 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (6), 5 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 61 [2022-12-13 14:40:51,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:40:51,970 INFO L225 Difference]: With dead ends: 1615 [2022-12-13 14:40:51,970 INFO L226 Difference]: Without dead ends: 1612 [2022-12-13 14:40:51,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-12-13 14:40:51,972 INFO L413 NwaCegarLoop]: 798 mSDtfsCounter, 1599 mSDsluCounter, 550 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 736 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1674 SdHoareTripleChecker+Valid, 1348 SdHoareTripleChecker+Invalid, 1145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 736 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-12-13 14:40:51,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1674 Valid, 1348 Invalid, 1145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [736 Valid, 408 Invalid, 1 Unknown, 0 Unchecked, 3.1s Time] [2022-12-13 14:40:51,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1612 states. [2022-12-13 14:40:52,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1612 to 1402. [2022-12-13 14:40:52,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1402 states, 1001 states have (on average 1.3286713286713288) internal successors, (1330), 1029 states have internal predecessors, (1330), 306 states have call successors, (306), 95 states have call predecessors, (306), 94 states have return successors, (303), 303 states have call predecessors, (303), 303 states have call successors, (303) [2022-12-13 14:40:52,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1402 states to 1402 states and 1939 transitions. [2022-12-13 14:40:52,031 INFO L78 Accepts]: Start accepts. Automaton has 1402 states and 1939 transitions. Word has length 61 [2022-12-13 14:40:52,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:40:52,031 INFO L495 AbstractCegarLoop]: Abstraction has 1402 states and 1939 transitions. [2022-12-13 14:40:52,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (6), 5 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 14:40:52,031 INFO L276 IsEmpty]: Start isEmpty. Operand 1402 states and 1939 transitions. [2022-12-13 14:40:52,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-12-13 14:40:52,033 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:40:52,033 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:40:52,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 14:40:52,033 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:40:52,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:40:52,034 INFO L85 PathProgramCache]: Analyzing trace with hash -1233526803, now seen corresponding path program 1 times [2022-12-13 14:40:52,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:40:52,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522568874] [2022-12-13 14:40:52,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:40:52,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:40:52,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:52,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 14:40:52,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:52,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:40:52,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:52,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 14:40:52,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:52,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 14:40:52,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:52,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 14:40:52,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:52,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:40:52,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:52,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 14:40:52,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:52,614 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-13 14:40:52,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:40:52,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522568874] [2022-12-13 14:40:52,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522568874] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:40:52,615 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:40:52,615 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 14:40:52,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322587560] [2022-12-13 14:40:52,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:40:52,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 14:40:52,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:40:52,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 14:40:52,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 14:40:52,616 INFO L87 Difference]: Start difference. First operand 1402 states and 1939 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (6), 5 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 14:40:54,684 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 14:40:56,691 WARN L539 Checker$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 14:40:59,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:40:59,244 INFO L93 Difference]: Finished difference Result 4572 states and 6362 transitions. [2022-12-13 14:40:59,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 14:40:59,244 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (6), 5 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 62 [2022-12-13 14:40:59,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:40:59,265 INFO L225 Difference]: With dead ends: 4572 [2022-12-13 14:40:59,265 INFO L226 Difference]: Without dead ends: 3180 [2022-12-13 14:40:59,272 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-12-13 14:40:59,273 INFO L413 NwaCegarLoop]: 952 mSDtfsCounter, 1731 mSDsluCounter, 2394 mSDsCounter, 0 mSdLazyCounter, 1326 mSolverCounterSat, 896 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1822 SdHoareTripleChecker+Valid, 3346 SdHoareTripleChecker+Invalid, 2224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 896 IncrementalHoareTripleChecker+Valid, 1326 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-12-13 14:40:59,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1822 Valid, 3346 Invalid, 2224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [896 Valid, 1326 Invalid, 2 Unknown, 0 Unchecked, 6.4s Time] [2022-12-13 14:40:59,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3180 states. [2022-12-13 14:40:59,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3180 to 2755. [2022-12-13 14:40:59,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2755 states, 1965 states have (on average 1.3318066157760815) internal successors, (2617), 2019 states have internal predecessors, (2617), 605 states have call successors, (605), 187 states have call predecessors, (605), 184 states have return successors, (602), 600 states have call predecessors, (602), 602 states have call successors, (602) [2022-12-13 14:40:59,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2755 states to 2755 states and 3824 transitions. [2022-12-13 14:40:59,483 INFO L78 Accepts]: Start accepts. Automaton has 2755 states and 3824 transitions. Word has length 62 [2022-12-13 14:40:59,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:40:59,484 INFO L495 AbstractCegarLoop]: Abstraction has 2755 states and 3824 transitions. [2022-12-13 14:40:59,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (6), 5 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 14:40:59,484 INFO L276 IsEmpty]: Start isEmpty. Operand 2755 states and 3824 transitions. [2022-12-13 14:40:59,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-12-13 14:40:59,487 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:40:59,488 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:40:59,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 14:40:59,488 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:40:59,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:40:59,488 INFO L85 PathProgramCache]: Analyzing trace with hash -606920599, now seen corresponding path program 1 times [2022-12-13 14:40:59,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:40:59,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353346790] [2022-12-13 14:40:59,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:40:59,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:40:59,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:59,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 14:40:59,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:59,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:40:59,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:59,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 14:40:59,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:59,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 14:40:59,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:59,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-12-13 14:40:59,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:59,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 14:40:59,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:59,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 14:40:59,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:59,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-12-13 14:40:59,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:59,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-12-13 14:40:59,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:59,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 14:40:59,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:59,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-12-13 14:40:59,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:59,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 14:40:59,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:59,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 14:40:59,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:59,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:40:59,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:59,999 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-13 14:40:59,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:40:59,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353346790] [2022-12-13 14:40:59,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353346790] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:40:59,999 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:40:59,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 14:41:00,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55629685] [2022-12-13 14:41:00,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:41:00,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 14:41:00,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:41:00,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 14:41:00,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-12-13 14:41:00,001 INFO L87 Difference]: Start difference. First operand 2755 states and 3824 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-13 14:41:02,054 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 14:41:04,059 WARN L539 Checker$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 14:41:06,063 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 14:41:08,074 WARN L539 Checker$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 14:41:09,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:41:09,470 INFO L93 Difference]: Finished difference Result 6206 states and 8662 transitions. [2022-12-13 14:41:09,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 14:41:09,471 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 104 [2022-12-13 14:41:09,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:41:09,481 INFO L225 Difference]: With dead ends: 6206 [2022-12-13 14:41:09,482 INFO L226 Difference]: Without dead ends: 3469 [2022-12-13 14:41:09,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-12-13 14:41:09,489 INFO L413 NwaCegarLoop]: 828 mSDtfsCounter, 964 mSDsluCounter, 1797 mSDsCounter, 0 mSdLazyCounter, 886 mSolverCounterSat, 833 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 994 SdHoareTripleChecker+Valid, 2625 SdHoareTripleChecker+Invalid, 1723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 833 IncrementalHoareTripleChecker+Valid, 886 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2022-12-13 14:41:09,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [994 Valid, 2625 Invalid, 1723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [833 Valid, 886 Invalid, 4 Unknown, 0 Unchecked, 9.2s Time] [2022-12-13 14:41:09,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3469 states. [2022-12-13 14:41:09,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3469 to 2813. [2022-12-13 14:41:09,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2813 states, 2021 states have (on average 1.3334982681840672) internal successors, (2695), 2075 states have internal predecessors, (2695), 605 states have call successors, (605), 189 states have call predecessors, (605), 186 states have return successors, (602), 600 states have call predecessors, (602), 602 states have call successors, (602) [2022-12-13 14:41:09,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2813 states to 2813 states and 3902 transitions. [2022-12-13 14:41:09,695 INFO L78 Accepts]: Start accepts. Automaton has 2813 states and 3902 transitions. Word has length 104 [2022-12-13 14:41:09,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:41:09,696 INFO L495 AbstractCegarLoop]: Abstraction has 2813 states and 3902 transitions. [2022-12-13 14:41:09,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-13 14:41:09,696 INFO L276 IsEmpty]: Start isEmpty. Operand 2813 states and 3902 transitions. [2022-12-13 14:41:09,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-12-13 14:41:09,698 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:41:09,698 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 14:41:09,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 14:41:09,698 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:41:09,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:41:09,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1485809213, now seen corresponding path program 1 times [2022-12-13 14:41:09,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:41:09,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057086806] [2022-12-13 14:41:09,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:41:09,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:41:09,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:10,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 14:41:10,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:10,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:41:10,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:10,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 14:41:10,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:10,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 14:41:10,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:10,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 14:41:10,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:10,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:41:10,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:10,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 14:41:10,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:10,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-12-13 14:41:10,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:10,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-12-13 14:41:10,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:10,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 14:41:10,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:10,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 14:41:10,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:10,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-12-13 14:41:10,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:10,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 14:41:10,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:10,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 14:41:10,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:10,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-12-13 14:41:10,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:10,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-12-13 14:41:10,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:10,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:41:10,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:10,231 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-13 14:41:10,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:41:10,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057086806] [2022-12-13 14:41:10,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057086806] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:41:10,231 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:41:10,231 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 14:41:10,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115937247] [2022-12-13 14:41:10,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:41:10,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 14:41:10,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:41:10,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 14:41:10,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-12-13 14:41:10,233 INFO L87 Difference]: Start difference. First operand 2813 states and 3902 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-12-13 14:41:12,284 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 14:41:14,295 WARN L539 Checker$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 14:41:16,305 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 14:41:17,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:41:17,968 INFO L93 Difference]: Finished difference Result 6780 states and 9551 transitions. [2022-12-13 14:41:17,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 14:41:17,969 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 133 [2022-12-13 14:41:17,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:41:17,979 INFO L225 Difference]: With dead ends: 6780 [2022-12-13 14:41:17,979 INFO L226 Difference]: Without dead ends: 3993 [2022-12-13 14:41:17,985 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-12-13 14:41:17,986 INFO L413 NwaCegarLoop]: 1012 mSDtfsCounter, 853 mSDsluCounter, 2168 mSDsCounter, 0 mSdLazyCounter, 985 mSolverCounterSat, 617 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 910 SdHoareTripleChecker+Valid, 3180 SdHoareTripleChecker+Invalid, 1605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 617 IncrementalHoareTripleChecker+Valid, 985 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-12-13 14:41:17,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [910 Valid, 3180 Invalid, 1605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [617 Valid, 985 Invalid, 3 Unknown, 0 Unchecked, 7.5s Time] [2022-12-13 14:41:17,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3993 states. [2022-12-13 14:41:18,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3993 to 2825. [2022-12-13 14:41:18,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2825 states, 2033 states have (on average 1.3315297589768815) internal successors, (2707), 2087 states have internal predecessors, (2707), 605 states have call successors, (605), 189 states have call predecessors, (605), 186 states have return successors, (602), 600 states have call predecessors, (602), 602 states have call successors, (602) [2022-12-13 14:41:18,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2825 states to 2825 states and 3914 transitions. [2022-12-13 14:41:18,107 INFO L78 Accepts]: Start accepts. Automaton has 2825 states and 3914 transitions. Word has length 133 [2022-12-13 14:41:18,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:41:18,107 INFO L495 AbstractCegarLoop]: Abstraction has 2825 states and 3914 transitions. [2022-12-13 14:41:18,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-12-13 14:41:18,107 INFO L276 IsEmpty]: Start isEmpty. Operand 2825 states and 3914 transitions. [2022-12-13 14:41:18,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-12-13 14:41:18,109 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:41:18,110 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 14:41:18,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 14:41:18,110 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:41:18,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:41:18,110 INFO L85 PathProgramCache]: Analyzing trace with hash 259643531, now seen corresponding path program 1 times [2022-12-13 14:41:18,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:41:18,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668028836] [2022-12-13 14:41:18,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:41:18,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:41:18,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:18,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 14:41:18,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:18,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:41:18,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:18,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 14:41:18,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:18,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 14:41:18,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:18,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 14:41:18,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:18,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:41:18,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:18,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 14:41:18,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:18,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-12-13 14:41:18,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:18,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-12-13 14:41:18,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:18,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 14:41:18,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:18,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 14:41:18,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:18,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-12-13 14:41:18,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:18,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 14:41:18,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:18,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 14:41:18,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:18,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-12-13 14:41:18,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:18,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-12-13 14:41:18,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:18,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:41:18,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:18,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-12-13 14:41:18,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:18,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-12-13 14:41:18,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:18,620 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-13 14:41:18,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:41:18,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668028836] [2022-12-13 14:41:18,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668028836] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:41:18,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:41:18,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 14:41:18,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812146250] [2022-12-13 14:41:18,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:41:18,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 14:41:18,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:41:18,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 14:41:18,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-12-13 14:41:18,623 INFO L87 Difference]: Start difference. First operand 2825 states and 3914 transitions. Second operand has 8 states, 8 states have (on average 11.25) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (18), 7 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2022-12-13 14:41:20,672 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 14:41:22,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 14:41:24,682 WARN L539 Checker$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 14:41:26,685 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 14:41:28,690 WARN L539 Checker$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 14:41:34,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:41:34,563 INFO L93 Difference]: Finished difference Result 6269 states and 8742 transitions. [2022-12-13 14:41:34,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 14:41:34,564 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (18), 7 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) Word has length 149 [2022-12-13 14:41:34,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:41:34,575 INFO L225 Difference]: With dead ends: 6269 [2022-12-13 14:41:34,576 INFO L226 Difference]: Without dead ends: 3470 [2022-12-13 14:41:34,581 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2022-12-13 14:41:34,581 INFO L413 NwaCegarLoop]: 379 mSDtfsCounter, 1957 mSDsluCounter, 1601 mSDsCounter, 0 mSdLazyCounter, 6918 mSolverCounterSat, 1220 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2090 SdHoareTripleChecker+Valid, 1980 SdHoareTripleChecker+Invalid, 8143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1220 IncrementalHoareTripleChecker+Valid, 6918 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.5s IncrementalHoareTripleChecker+Time [2022-12-13 14:41:34,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2090 Valid, 1980 Invalid, 8143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1220 Valid, 6918 Invalid, 5 Unknown, 0 Unchecked, 15.5s Time] [2022-12-13 14:41:34,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3470 states. [2022-12-13 14:41:34,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3470 to 2822. [2022-12-13 14:41:34,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2822 states, 2031 states have (on average 1.3298867552929592) internal successors, (2701), 2085 states have internal predecessors, (2701), 604 states have call successors, (604), 188 states have call predecessors, (604), 186 states have return successors, (600), 600 states have call predecessors, (600), 600 states have call successors, (600) [2022-12-13 14:41:34,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2822 states to 2822 states and 3905 transitions. [2022-12-13 14:41:34,712 INFO L78 Accepts]: Start accepts. Automaton has 2822 states and 3905 transitions. Word has length 149 [2022-12-13 14:41:34,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:41:34,712 INFO L495 AbstractCegarLoop]: Abstraction has 2822 states and 3905 transitions. [2022-12-13 14:41:34,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (18), 7 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2022-12-13 14:41:34,712 INFO L276 IsEmpty]: Start isEmpty. Operand 2822 states and 3905 transitions. [2022-12-13 14:41:34,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-12-13 14:41:34,715 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:41:34,715 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 14:41:34,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 14:41:34,715 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:41:34,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:41:34,716 INFO L85 PathProgramCache]: Analyzing trace with hash 220942373, now seen corresponding path program 1 times [2022-12-13 14:41:34,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:41:34,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390352553] [2022-12-13 14:41:34,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:41:34,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:41:34,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:35,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 14:41:35,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:35,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:41:35,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:35,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 14:41:35,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:35,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 14:41:35,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:35,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 14:41:35,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:35,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:41:35,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:35,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 14:41:35,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:35,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-12-13 14:41:35,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:35,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-12-13 14:41:35,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:35,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 14:41:35,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:35,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 14:41:35,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:35,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-12-13 14:41:35,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:35,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 14:41:35,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:35,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 14:41:35,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:35,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-12-13 14:41:35,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:35,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-12-13 14:41:35,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:35,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:41:35,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:35,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-12-13 14:41:35,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:35,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-12-13 14:41:35,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:35,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:41:35,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:35,883 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-12-13 14:41:35,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:41:35,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390352553] [2022-12-13 14:41:35,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390352553] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:41:35,884 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:41:35,884 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 14:41:35,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581322051] [2022-12-13 14:41:35,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:41:35,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 14:41:35,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:41:35,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 14:41:35,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-12-13 14:41:35,885 INFO L87 Difference]: Start difference. First operand 2822 states and 3905 transitions. Second operand has 12 states, 12 states have (on average 7.583333333333333) internal successors, (91), 7 states have internal predecessors, (91), 2 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) [2022-12-13 14:41:37,936 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 14:41:39,940 WARN L539 Checker$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 14:41:43,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:41:43,170 INFO L93 Difference]: Finished difference Result 7589 states and 10788 transitions. [2022-12-13 14:41:43,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 14:41:43,170 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.583333333333333) internal successors, (91), 7 states have internal predecessors, (91), 2 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) Word has length 154 [2022-12-13 14:41:43,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:41:43,183 INFO L225 Difference]: With dead ends: 7589 [2022-12-13 14:41:43,184 INFO L226 Difference]: Without dead ends: 4793 [2022-12-13 14:41:43,190 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2022-12-13 14:41:43,191 INFO L413 NwaCegarLoop]: 1196 mSDtfsCounter, 1621 mSDsluCounter, 7518 mSDsCounter, 0 mSdLazyCounter, 2797 mSolverCounterSat, 981 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1678 SdHoareTripleChecker+Valid, 8714 SdHoareTripleChecker+Invalid, 3780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 981 IncrementalHoareTripleChecker+Valid, 2797 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-12-13 14:41:43,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1678 Valid, 8714 Invalid, 3780 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [981 Valid, 2797 Invalid, 2 Unknown, 0 Unchecked, 6.9s Time] [2022-12-13 14:41:43,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4793 states. [2022-12-13 14:41:43,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4793 to 2819. [2022-12-13 14:41:43,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2819 states, 2029 states have (on average 1.3282405125677674) internal successors, (2695), 2082 states have internal predecessors, (2695), 603 states have call successors, (603), 188 states have call predecessors, (603), 186 states have return successors, (600), 600 states have call predecessors, (600), 600 states have call successors, (600) [2022-12-13 14:41:43,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2819 states to 2819 states and 3898 transitions. [2022-12-13 14:41:43,375 INFO L78 Accepts]: Start accepts. Automaton has 2819 states and 3898 transitions. Word has length 154 [2022-12-13 14:41:43,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:41:43,375 INFO L495 AbstractCegarLoop]: Abstraction has 2819 states and 3898 transitions. [2022-12-13 14:41:43,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.583333333333333) internal successors, (91), 7 states have internal predecessors, (91), 2 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) [2022-12-13 14:41:43,376 INFO L276 IsEmpty]: Start isEmpty. Operand 2819 states and 3898 transitions. [2022-12-13 14:41:43,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-12-13 14:41:43,379 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:41:43,379 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-12-13 14:41:43,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 14:41:43,380 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:41:43,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:41:43,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1107992205, now seen corresponding path program 1 times [2022-12-13 14:41:43,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:41:43,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357853486] [2022-12-13 14:41:43,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:41:43,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:41:43,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:44,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 14:41:44,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:44,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:41:44,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:44,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 14:41:44,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:44,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 14:41:44,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:44,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 14:41:44,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:44,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:41:44,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:44,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 14:41:44,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:44,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-12-13 14:41:44,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:44,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-12-13 14:41:44,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:44,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 14:41:44,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:44,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 14:41:44,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:44,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-12-13 14:41:44,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:44,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 14:41:44,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:44,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 14:41:44,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:44,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-12-13 14:41:44,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:44,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-12-13 14:41:44,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:44,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:41:44,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:44,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-12-13 14:41:44,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:44,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-12-13 14:41:44,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:44,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-12-13 14:41:44,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:44,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-12-13 14:41:44,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:44,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-12-13 14:41:44,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:44,281 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-12-13 14:41:44,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:41:44,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357853486] [2022-12-13 14:41:44,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357853486] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:41:44,282 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:41:44,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 14:41:44,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430835789] [2022-12-13 14:41:44,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:41:44,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 14:41:44,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:41:44,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 14:41:44,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-12-13 14:41:44,283 INFO L87 Difference]: Start difference. First operand 2819 states and 3898 transitions. Second operand has 10 states, 10 states have (on average 11.5) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (21), 7 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-12-13 14:41:46,358 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 14:41:48,367 WARN L539 Checker$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 14:41:50,373 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 14:41:52,377 WARN L539 Checker$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 14:41:54,380 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 14:41:58,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:41:58,941 INFO L93 Difference]: Finished difference Result 6442 states and 9237 transitions. [2022-12-13 14:41:58,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 14:41:58,941 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.5) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (21), 7 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 184 [2022-12-13 14:41:58,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:41:58,957 INFO L225 Difference]: With dead ends: 6442 [2022-12-13 14:41:58,957 INFO L226 Difference]: Without dead ends: 5057 [2022-12-13 14:41:58,962 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2022-12-13 14:41:58,962 INFO L413 NwaCegarLoop]: 507 mSDtfsCounter, 2002 mSDsluCounter, 2376 mSDsCounter, 0 mSdLazyCounter, 5550 mSolverCounterSat, 810 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2132 SdHoareTripleChecker+Valid, 2883 SdHoareTripleChecker+Invalid, 6365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 810 IncrementalHoareTripleChecker+Valid, 5550 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.2s IncrementalHoareTripleChecker+Time [2022-12-13 14:41:58,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2132 Valid, 2883 Invalid, 6365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [810 Valid, 5550 Invalid, 5 Unknown, 0 Unchecked, 14.2s Time] [2022-12-13 14:41:58,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5057 states. [2022-12-13 14:41:59,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5057 to 2819. [2022-12-13 14:41:59,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2819 states, 2029 states have (on average 1.327254805322819) internal successors, (2693), 2082 states have internal predecessors, (2693), 603 states have call successors, (603), 188 states have call predecessors, (603), 186 states have return successors, (600), 600 states have call predecessors, (600), 600 states have call successors, (600) [2022-12-13 14:41:59,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2819 states to 2819 states and 3896 transitions. [2022-12-13 14:41:59,139 INFO L78 Accepts]: Start accepts. Automaton has 2819 states and 3896 transitions. Word has length 184 [2022-12-13 14:41:59,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:41:59,139 INFO L495 AbstractCegarLoop]: Abstraction has 2819 states and 3896 transitions. [2022-12-13 14:41:59,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.5) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (21), 7 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-12-13 14:41:59,139 INFO L276 IsEmpty]: Start isEmpty. Operand 2819 states and 3896 transitions. [2022-12-13 14:41:59,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-12-13 14:41:59,143 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:41:59,143 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-12-13 14:41:59,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 14:41:59,143 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:41:59,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:41:59,144 INFO L85 PathProgramCache]: Analyzing trace with hash -1299758695, now seen corresponding path program 1 times [2022-12-13 14:41:59,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:41:59,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758601836] [2022-12-13 14:41:59,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:41:59,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:41:59,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:59,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 14:41:59,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:59,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:41:59,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:59,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 14:41:59,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:59,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 14:41:59,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:59,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 14:41:59,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:59,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:41:59,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:59,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 14:41:59,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:59,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-12-13 14:41:59,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:59,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-12-13 14:41:59,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:59,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 14:41:59,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:59,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 14:41:59,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:59,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-12-13 14:41:59,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:59,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 14:41:59,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:59,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 14:41:59,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:59,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-12-13 14:41:59,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:59,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-12-13 14:41:59,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:59,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:41:59,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:59,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-12-13 14:41:59,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:59,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-12-13 14:41:59,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:59,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-12-13 14:41:59,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:59,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-12-13 14:41:59,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:59,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-12-13 14:41:59,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:59,665 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-12-13 14:41:59,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:41:59,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758601836] [2022-12-13 14:41:59,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758601836] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:41:59,666 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:41:59,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 14:41:59,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612708252] [2022-12-13 14:41:59,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:41:59,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 14:41:59,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:41:59,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 14:41:59,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-12-13 14:41:59,668 INFO L87 Difference]: Start difference. First operand 2819 states and 3896 transitions. Second operand has 8 states, 8 states have (on average 15.0) internal successors, (120), 3 states have internal predecessors, (120), 3 states have call successors, (21), 7 states have call predecessors, (21), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-12-13 14:42:01,717 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 14:42:03,724 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 14:42:05,732 WARN L539 Checker$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 14:42:07,736 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 14:42:09,743 WARN L539 Checker$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 14:42:12,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:42:12,576 INFO L93 Difference]: Finished difference Result 3402 states and 4774 transitions. [2022-12-13 14:42:12,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 14:42:12,577 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 15.0) internal successors, (120), 3 states have internal predecessors, (120), 3 states have call successors, (21), 7 states have call predecessors, (21), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 189 [2022-12-13 14:42:12,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:42:12,577 INFO L225 Difference]: With dead ends: 3402 [2022-12-13 14:42:12,577 INFO L226 Difference]: Without dead ends: 0 [2022-12-13 14:42:12,582 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-12-13 14:42:12,582 INFO L413 NwaCegarLoop]: 392 mSDtfsCounter, 1431 mSDsluCounter, 1297 mSDsCounter, 0 mSdLazyCounter, 3471 mSolverCounterSat, 751 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1556 SdHoareTripleChecker+Valid, 1689 SdHoareTripleChecker+Invalid, 4227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 751 IncrementalHoareTripleChecker+Valid, 3471 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2022-12-13 14:42:12,582 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1556 Valid, 1689 Invalid, 4227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [751 Valid, 3471 Invalid, 5 Unknown, 0 Unchecked, 12.7s Time] [2022-12-13 14:42:12,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-13 14:42:12,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-13 14:42:12,583 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 14:42:12,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-13 14:42:12,583 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 189 [2022-12-13 14:42:12,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:42:12,583 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 14:42:12,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.0) internal successors, (120), 3 states have internal predecessors, (120), 3 states have call successors, (21), 7 states have call predecessors, (21), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-12-13 14:42:12,584 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-13 14:42:12,584 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-13 14:42:12,585 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-13 14:42:12,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 14:42:12,587 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-13 14:42:49,409 WARN L233 SmtUtils]: Spent 36.53s on a formula simplification. DAG size of input: 69 DAG size of output: 67 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-12-13 14:43:05,774 WARN L233 SmtUtils]: Spent 16.36s on a formula simplification. DAG size of input: 64 DAG size of output: 62 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-12-13 14:43:40,813 WARN L233 SmtUtils]: Spent 34.98s on a formula simplification. DAG size of input: 69 DAG size of output: 67 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-12-13 14:43:56,603 WARN L233 SmtUtils]: Spent 15.79s on a formula simplification. DAG size of input: 64 DAG size of output: 62 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or)