./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 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d892a30e-122c-4b3d-b69f-35172e1d9903/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d892a30e-122c-4b3d-b69f-35172e1d9903/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d892a30e-122c-4b3d-b69f-35172e1d9903/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d892a30e-122c-4b3d-b69f-35172e1d9903/bin/uautomizer-ZsLfNo2U6R/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_d892a30e-122c-4b3d-b69f-35172e1d9903/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d892a30e-122c-4b3d-b69f-35172e1d9903/bin/uautomizer-ZsLfNo2U6R --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-38b53e6 [2022-11-25 15:37:39,718 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 15:37:39,720 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 15:37:39,747 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 15:37:39,748 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 15:37:39,749 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 15:37:39,750 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 15:37:39,758 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 15:37:39,761 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 15:37:39,767 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 15:37:39,768 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 15:37:39,771 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 15:37:39,771 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 15:37:39,776 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 15:37:39,778 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 15:37:39,780 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 15:37:39,780 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 15:37:39,781 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 15:37:39,783 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 15:37:39,785 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 15:37:39,786 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 15:37:39,791 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 15:37:39,794 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 15:37:39,795 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 15:37:39,809 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 15:37:39,810 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 15:37:39,810 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 15:37:39,812 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 15:37:39,813 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 15:37:39,814 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 15:37:39,815 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 15:37:39,816 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 15:37:39,818 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 15:37:39,820 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 15:37:39,821 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 15:37:39,821 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 15:37:39,822 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 15:37:39,822 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 15:37:39,823 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 15:37:39,824 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 15:37:39,825 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 15:37:39,826 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d892a30e-122c-4b3d-b69f-35172e1d9903/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-25 15:37:39,865 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 15:37:39,868 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 15:37:39,868 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 15:37:39,869 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 15:37:39,870 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 15:37:39,870 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 15:37:39,871 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 15:37:39,871 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 15:37:39,871 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 15:37:39,872 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 15:37:39,873 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 15:37:39,873 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 15:37:39,874 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 15:37:39,874 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 15:37:39,874 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 15:37:39,874 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 15:37:39,875 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 15:37:39,875 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 15:37:39,875 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 15:37:39,876 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 15:37:39,876 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 15:37:39,876 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:37:39,877 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 15:37:39,877 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 15:37:39,877 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 15:37:39,877 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 15:37:39,878 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 15:37:39,878 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 15:37:39,878 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 15:37:39,879 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 15:37:39,879 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 15:37:39,879 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_d892a30e-122c-4b3d-b69f-35172e1d9903/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d892a30e-122c-4b3d-b69f-35172e1d9903/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 57d203c2bb9e5fb46a500992932f18e1bc69473edc196ab4ca3ccbbd153a7dab [2022-11-25 15:37:40,197 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 15:37:40,233 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 15:37:40,236 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 15:37:40,238 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 15:37:40,238 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 15:37:40,240 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d892a30e-122c-4b3d-b69f-35172e1d9903/bin/uautomizer-ZsLfNo2U6R/../../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 [2022-11-25 15:37:43,247 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 15:37:43,789 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 15:37:43,789 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d892a30e-122c-4b3d-b69f-35172e1d9903/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 [2022-11-25 15:37:43,844 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d892a30e-122c-4b3d-b69f-35172e1d9903/bin/uautomizer-ZsLfNo2U6R/data/d22df9c2c/1a49caac82ee41cc8168b2bca7254c75/FLAGeee16df4a [2022-11-25 15:37:43,866 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d892a30e-122c-4b3d-b69f-35172e1d9903/bin/uautomizer-ZsLfNo2U6R/data/d22df9c2c/1a49caac82ee41cc8168b2bca7254c75 [2022-11-25 15:37:43,869 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 15:37:43,870 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 15:37:43,872 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 15:37:43,872 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 15:37:43,876 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 15:37:43,877 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:37:43" (1/1) ... [2022-11-25 15:37:43,878 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fdf45b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:37:43, skipping insertion in model container [2022-11-25 15:37:43,878 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:37:43" (1/1) ... [2022-11-25 15:37:43,886 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 15:37:44,017 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 15:37:44,936 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-11-25 15:37:44,955 WARN L623 FunctionHandler]: Unknown extern function __msecs_to_jiffies [2022-11-25 15:37:44,964 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 15:37:45,071 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-11-25 15:37:45,072 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 15:37:45,143 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 15:37:45,184 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-11-25 15:37:45,189 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-11-25 15:37:45,202 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_irq [2022-11-25 15:37:45,287 WARN L623 FunctionHandler]: Unknown extern function skb_unlink [2022-11-25 15:37:45,289 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-25 15:37:45,290 WARN L623 FunctionHandler]: Unknown extern function skb_pull [2022-11-25 15:37:45,291 WARN L623 FunctionHandler]: Unknown extern function skb_pull [2022-11-25 15:37:45,291 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-25 15:37:45,291 WARN L623 FunctionHandler]: Unknown extern function p54_rx [2022-11-25 15:37:45,295 WARN L623 FunctionHandler]: Unknown extern function skb_push [2022-11-25 15:37:45,296 WARN L623 FunctionHandler]: Unknown extern function skb_push [2022-11-25 15:37:45,296 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-25 15:37:45,297 WARN L623 FunctionHandler]: Unknown extern function skb_trim [2022-11-25 15:37:45,298 WARN L623 FunctionHandler]: Unknown extern function skb_queue_tail [2022-11-25 15:37:45,298 WARN L623 FunctionHandler]: Unknown extern function usb_anchor_urb [2022-11-25 15:37:45,299 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-11-25 15:37:45,299 WARN L623 FunctionHandler]: Unknown extern function skb_unlink [2022-11-25 15:37:45,300 WARN L623 FunctionHandler]: Unknown extern function usb_unanchor_urb [2022-11-25 15:37:45,306 WARN L623 FunctionHandler]: Unknown extern function usb_ifnum_to_if [2022-11-25 15:37:45,307 WARN L623 FunctionHandler]: Unknown extern function p54_free_skb [2022-11-25 15:37:45,315 WARN L623 FunctionHandler]: Unknown extern function usb_kill_anchored_urbs [2022-11-25 15:37:45,326 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_urb [2022-11-25 15:37:45,328 WARN L623 FunctionHandler]: Unknown extern function skb_queue_tail [2022-11-25 15:37:45,329 WARN L623 FunctionHandler]: Unknown extern function usb_anchor_urb [2022-11-25 15:37:45,330 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-11-25 15:37:45,331 WARN L623 FunctionHandler]: Unknown extern function skb_unlink [2022-11-25 15:37:45,331 WARN L623 FunctionHandler]: Unknown extern function usb_unanchor_urb [2022-11-25 15:37:45,331 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-11-25 15:37:45,336 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-11-25 15:37:45,336 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-25 15:37:45,365 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_urb [2022-11-25 15:37:45,365 WARN L623 FunctionHandler]: Unknown extern function p54_free_skb [2022-11-25 15:37:45,367 WARN L623 FunctionHandler]: Unknown extern function usb_anchor_urb [2022-11-25 15:37:45,368 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-11-25 15:37:45,368 WARN L623 FunctionHandler]: Unknown extern function usb_unanchor_urb [2022-11-25 15:37:45,368 WARN L623 FunctionHandler]: Unknown extern function p54_free_skb [2022-11-25 15:37:45,369 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-11-25 15:37:45,374 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_urb [2022-11-25 15:37:45,375 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_urb [2022-11-25 15:37:45,378 WARN L623 FunctionHandler]: Unknown extern function usb_anchor_urb [2022-11-25 15:37:45,378 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-11-25 15:37:45,379 WARN L623 FunctionHandler]: Unknown extern function usb_unanchor_urb [2022-11-25 15:37:45,379 WARN L623 FunctionHandler]: Unknown extern function usb_anchor_urb [2022-11-25 15:37:45,379 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-11-25 15:37:45,380 WARN L623 FunctionHandler]: Unknown extern function usb_unanchor_urb [2022-11-25 15:37:45,380 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-11-25 15:37:45,380 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-11-25 15:37:45,380 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 15:37:45,381 WARN L623 FunctionHandler]: Unknown extern function p54_free_skb [2022-11-25 15:37:45,386 WARN L623 FunctionHandler]: Unknown extern function usb_bulk_msg [2022-11-25 15:37:45,392 WARN L623 FunctionHandler]: Unknown extern function usb_bulk_msg [2022-11-25 15:37:45,393 WARN L623 FunctionHandler]: Unknown extern function usb_bulk_msg [2022-11-25 15:37:45,398 WARN L623 FunctionHandler]: Unknown extern function usb_bulk_msg [2022-11-25 15:37:45,403 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 15:37:45,404 WARN L623 FunctionHandler]: Unknown extern function usb_reset_device [2022-11-25 15:37:45,404 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 15:37:45,409 WARN L623 FunctionHandler]: Unknown extern function kmemdup [2022-11-25 15:37:45,410 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 15:37:45,410 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 15:37:45,419 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-11-25 15:37:45,429 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 15:37:45,430 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-11-25 15:37:45,431 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 15:37:45,431 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-25 15:37:45,432 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-25 15:37:45,433 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 15:37:45,434 WARN L623 FunctionHandler]: Unknown extern function usb_bulk_msg [2022-11-25 15:37:45,434 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 15:37:45,435 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 15:37:45,437 WARN L623 FunctionHandler]: Unknown extern function usb_bulk_msg [2022-11-25 15:37:45,438 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 15:37:45,445 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 15:37:45,446 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 15:37:45,447 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 15:37:45,452 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 15:37:45,453 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 15:37:45,454 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 15:37:45,456 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 15:37:45,459 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 15:37:45,460 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 15:37:45,462 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 15:37:45,463 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 15:37:45,466 WARN L623 FunctionHandler]: Unknown extern function usb_interrupt_msg [2022-11-25 15:37:45,467 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 15:37:45,480 WARN L623 FunctionHandler]: Unknown extern function p54_parse_firmware [2022-11-25 15:37:45,481 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 15:37:45,485 WARN L623 FunctionHandler]: Unknown extern function p54_read_eeprom [2022-11-25 15:37:45,486 WARN L623 FunctionHandler]: Unknown extern function p54_register_common [2022-11-25 15:37:45,490 WARN L623 FunctionHandler]: Unknown extern function complete [2022-11-25 15:37:45,491 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 15:37:45,491 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 15:37:45,492 WARN L623 FunctionHandler]: Unknown extern function device_release_driver [2022-11-25 15:37:45,492 WARN L623 FunctionHandler]: Unknown extern function usb_put_dev [2022-11-25 15:37:45,497 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 15:37:45,498 WARN L623 FunctionHandler]: Unknown extern function usb_get_dev [2022-11-25 15:37:45,498 WARN L623 FunctionHandler]: Unknown extern function request_firmware_nowait [2022-11-25 15:37:45,499 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 15:37:45,500 WARN L623 FunctionHandler]: Unknown extern function usb_put_dev [2022-11-25 15:37:45,504 WARN L623 FunctionHandler]: Unknown extern function p54_init_common [2022-11-25 15:37:45,504 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 15:37:45,505 WARN L623 FunctionHandler]: Unknown extern function usb_get_dev [2022-11-25 15:37:45,509 WARN L623 FunctionHandler]: Unknown extern function usb_put_dev [2022-11-25 15:37:45,509 WARN L623 FunctionHandler]: Unknown extern function p54_free_common [2022-11-25 15:37:45,514 WARN L623 FunctionHandler]: Unknown extern function wait_for_completion [2022-11-25 15:37:45,514 WARN L623 FunctionHandler]: Unknown extern function p54_unregister_common [2022-11-25 15:37:45,514 WARN L623 FunctionHandler]: Unknown extern function usb_put_dev [2022-11-25 15:37:45,515 WARN L623 FunctionHandler]: Unknown extern function release_firmware [2022-11-25 15:37:45,515 WARN L623 FunctionHandler]: Unknown extern function p54_free_common [2022-11-25 15:37:45,529 WARN L623 FunctionHandler]: Unknown extern function ieee80211_restart_hw [2022-11-25 15:37:45,553 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-11-25 15:37:45,557 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 15:37:45,558 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 15:37:45,558 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 15:37:45,558 WARN L623 FunctionHandler]: Unknown extern function mutex_trylock [2022-11-25 15:37:45,559 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 15:37:45,559 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 15:37:45,560 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 15:37:45,560 WARN L623 FunctionHandler]: Unknown extern function __ldv_usb_unlock_device [2022-11-25 15:37:45,561 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-11-25 15:37:45,561 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-11-25 15:37:45,565 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_d892a30e-122c-4b3d-b69f-35172e1d9903/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] [2022-11-25 15:37:45,724 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 15:37:45,725 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 15:37:45,729 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 15:37:45,730 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 15:37:45,737 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 15:37:45,737 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 15:37:45,740 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 15:37:45,741 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 15:37:45,742 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 15:37:45,748 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:37:45,815 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 15:37:45,991 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-11-25 15:37:45,992 WARN L623 FunctionHandler]: Unknown extern function __msecs_to_jiffies [2022-11-25 15:37:45,993 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 15:37:45,997 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-11-25 15:37:45,998 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 15:37:46,002 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 15:37:46,004 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-11-25 15:37:46,005 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-11-25 15:37:46,005 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_irq [2022-11-25 15:37:46,017 WARN L623 FunctionHandler]: Unknown extern function skb_unlink [2022-11-25 15:37:46,018 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-25 15:37:46,019 WARN L623 FunctionHandler]: Unknown extern function skb_pull [2022-11-25 15:37:46,019 WARN L623 FunctionHandler]: Unknown extern function skb_pull [2022-11-25 15:37:46,019 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-25 15:37:46,020 WARN L623 FunctionHandler]: Unknown extern function p54_rx [2022-11-25 15:37:46,021 WARN L623 FunctionHandler]: Unknown extern function skb_push [2022-11-25 15:37:46,021 WARN L623 FunctionHandler]: Unknown extern function skb_push [2022-11-25 15:37:46,021 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-25 15:37:46,022 WARN L623 FunctionHandler]: Unknown extern function skb_trim [2022-11-25 15:37:46,022 WARN L623 FunctionHandler]: Unknown extern function skb_queue_tail [2022-11-25 15:37:46,022 WARN L623 FunctionHandler]: Unknown extern function usb_anchor_urb [2022-11-25 15:37:46,023 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-11-25 15:37:46,023 WARN L623 FunctionHandler]: Unknown extern function skb_unlink [2022-11-25 15:37:46,023 WARN L623 FunctionHandler]: Unknown extern function usb_unanchor_urb [2022-11-25 15:37:46,024 WARN L623 FunctionHandler]: Unknown extern function usb_ifnum_to_if [2022-11-25 15:37:46,024 WARN L623 FunctionHandler]: Unknown extern function p54_free_skb [2022-11-25 15:37:46,025 WARN L623 FunctionHandler]: Unknown extern function usb_kill_anchored_urbs [2022-11-25 15:37:46,026 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_urb [2022-11-25 15:37:46,027 WARN L623 FunctionHandler]: Unknown extern function skb_queue_tail [2022-11-25 15:37:46,027 WARN L623 FunctionHandler]: Unknown extern function usb_anchor_urb [2022-11-25 15:37:46,028 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-11-25 15:37:46,028 WARN L623 FunctionHandler]: Unknown extern function skb_unlink [2022-11-25 15:37:46,028 WARN L623 FunctionHandler]: Unknown extern function usb_unanchor_urb [2022-11-25 15:37:46,028 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-11-25 15:37:46,029 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-11-25 15:37:46,029 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-25 15:37:46,031 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_urb [2022-11-25 15:37:46,031 WARN L623 FunctionHandler]: Unknown extern function p54_free_skb [2022-11-25 15:37:46,033 WARN L623 FunctionHandler]: Unknown extern function usb_anchor_urb [2022-11-25 15:37:46,033 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-11-25 15:37:46,033 WARN L623 FunctionHandler]: Unknown extern function usb_unanchor_urb [2022-11-25 15:37:46,033 WARN L623 FunctionHandler]: Unknown extern function p54_free_skb [2022-11-25 15:37:46,034 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-11-25 15:37:46,035 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_urb [2022-11-25 15:37:46,036 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_urb [2022-11-25 15:37:46,037 WARN L623 FunctionHandler]: Unknown extern function usb_anchor_urb [2022-11-25 15:37:46,038 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-11-25 15:37:46,038 WARN L623 FunctionHandler]: Unknown extern function usb_unanchor_urb [2022-11-25 15:37:46,038 WARN L623 FunctionHandler]: Unknown extern function usb_anchor_urb [2022-11-25 15:37:46,038 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-11-25 15:37:46,039 WARN L623 FunctionHandler]: Unknown extern function usb_unanchor_urb [2022-11-25 15:37:46,039 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-11-25 15:37:46,039 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-11-25 15:37:46,039 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 15:37:46,040 WARN L623 FunctionHandler]: Unknown extern function p54_free_skb [2022-11-25 15:37:46,041 WARN L623 FunctionHandler]: Unknown extern function usb_bulk_msg [2022-11-25 15:37:46,043 WARN L623 FunctionHandler]: Unknown extern function usb_bulk_msg [2022-11-25 15:37:46,043 WARN L623 FunctionHandler]: Unknown extern function usb_bulk_msg [2022-11-25 15:37:46,044 WARN L623 FunctionHandler]: Unknown extern function usb_bulk_msg [2022-11-25 15:37:46,045 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 15:37:46,046 WARN L623 FunctionHandler]: Unknown extern function usb_reset_device [2022-11-25 15:37:46,046 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 15:37:46,047 WARN L623 FunctionHandler]: Unknown extern function kmemdup [2022-11-25 15:37:46,048 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 15:37:46,048 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 15:37:46,051 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-11-25 15:37:46,053 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 15:37:46,054 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-11-25 15:37:46,055 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 15:37:46,055 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-25 15:37:46,056 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-25 15:37:46,056 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 15:37:46,057 WARN L623 FunctionHandler]: Unknown extern function usb_bulk_msg [2022-11-25 15:37:46,057 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 15:37:46,058 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 15:37:46,059 WARN L623 FunctionHandler]: Unknown extern function usb_bulk_msg [2022-11-25 15:37:46,059 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 15:37:46,062 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 15:37:46,063 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 15:37:46,063 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 15:37:46,066 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 15:37:46,067 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 15:37:46,068 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 15:37:46,069 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 15:37:46,071 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 15:37:46,072 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 15:37:46,074 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 15:37:46,075 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 15:37:46,076 WARN L623 FunctionHandler]: Unknown extern function usb_interrupt_msg [2022-11-25 15:37:46,077 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 15:37:46,079 WARN L623 FunctionHandler]: Unknown extern function p54_parse_firmware [2022-11-25 15:37:46,080 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 15:37:46,081 WARN L623 FunctionHandler]: Unknown extern function p54_read_eeprom [2022-11-25 15:37:46,081 WARN L623 FunctionHandler]: Unknown extern function p54_register_common [2022-11-25 15:37:46,082 WARN L623 FunctionHandler]: Unknown extern function complete [2022-11-25 15:37:46,082 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 15:37:46,084 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 15:37:46,084 WARN L623 FunctionHandler]: Unknown extern function device_release_driver [2022-11-25 15:37:46,085 WARN L623 FunctionHandler]: Unknown extern function usb_put_dev [2022-11-25 15:37:46,086 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 15:37:46,086 WARN L623 FunctionHandler]: Unknown extern function usb_get_dev [2022-11-25 15:37:46,086 WARN L623 FunctionHandler]: Unknown extern function request_firmware_nowait [2022-11-25 15:37:46,087 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 15:37:46,087 WARN L623 FunctionHandler]: Unknown extern function usb_put_dev [2022-11-25 15:37:46,088 WARN L623 FunctionHandler]: Unknown extern function p54_init_common [2022-11-25 15:37:46,088 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 15:37:46,089 WARN L623 FunctionHandler]: Unknown extern function usb_get_dev [2022-11-25 15:37:46,091 WARN L623 FunctionHandler]: Unknown extern function usb_put_dev [2022-11-25 15:37:46,091 WARN L623 FunctionHandler]: Unknown extern function p54_free_common [2022-11-25 15:37:46,092 WARN L623 FunctionHandler]: Unknown extern function wait_for_completion [2022-11-25 15:37:46,092 WARN L623 FunctionHandler]: Unknown extern function p54_unregister_common [2022-11-25 15:37:46,092 WARN L623 FunctionHandler]: Unknown extern function usb_put_dev [2022-11-25 15:37:46,093 WARN L623 FunctionHandler]: Unknown extern function release_firmware [2022-11-25 15:37:46,093 WARN L623 FunctionHandler]: Unknown extern function p54_free_common [2022-11-25 15:37:46,095 WARN L623 FunctionHandler]: Unknown extern function ieee80211_restart_hw [2022-11-25 15:37:46,098 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-11-25 15:37:46,100 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 15:37:46,101 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 15:37:46,101 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 15:37:46,101 WARN L623 FunctionHandler]: Unknown extern function mutex_trylock [2022-11-25 15:37:46,102 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 15:37:46,102 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 15:37:46,103 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 15:37:46,103 WARN L623 FunctionHandler]: Unknown extern function __ldv_usb_unlock_device [2022-11-25 15:37:46,104 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-11-25 15:37:46,104 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-11-25 15:37:46,104 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_d892a30e-122c-4b3d-b69f-35172e1d9903/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] [2022-11-25 15:37:46,115 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 15:37:46,119 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 15:37:46,120 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 15:37:46,121 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 15:37:46,122 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 15:37:46,122 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 15:37:46,123 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 15:37:46,124 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 15:37:46,124 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 15:37:46,125 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:37:46,273 INFO L208 MainTranslator]: Completed translation [2022-11-25 15:37:46,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:37:46 WrapperNode [2022-11-25 15:37:46,273 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 15:37:46,274 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 15:37:46,275 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 15:37:46,275 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 15:37:46,283 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:37:46" (1/1) ... [2022-11-25 15:37:46,368 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:37:46" (1/1) ... [2022-11-25 15:37:46,526 INFO L138 Inliner]: procedures = 217, calls = 1688, calls flagged for inlining = 75, calls inlined = 52, statements flattened = 3514 [2022-11-25 15:37:46,526 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 15:37:46,527 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 15:37:46,527 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 15:37:46,528 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 15:37:46,538 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:37:46" (1/1) ... [2022-11-25 15:37:46,538 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:37:46" (1/1) ... [2022-11-25 15:37:46,563 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:37:46" (1/1) ... [2022-11-25 15:37:46,564 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:37:46" (1/1) ... [2022-11-25 15:37:46,681 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:37:46" (1/1) ... [2022-11-25 15:37:46,714 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:37:46" (1/1) ... [2022-11-25 15:37:46,736 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:37:46" (1/1) ... [2022-11-25 15:37:46,759 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:37:46" (1/1) ... [2022-11-25 15:37:46,825 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 15:37:46,826 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 15:37:46,826 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 15:37:46,843 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 15:37:46,843 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:37:46" (1/1) ... [2022-11-25 15:37:46,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:37:46,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d892a30e-122c-4b3d-b69f-35172e1d9903/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:37:46,876 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d892a30e-122c-4b3d-b69f-35172e1d9903/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 15:37:46,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d892a30e-122c-4b3d-b69f-35172e1d9903/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 15:37:46,928 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2022-11-25 15:37:46,928 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2022-11-25 15:37:46,928 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2022-11-25 15:37:46,928 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2022-11-25 15:37:46,929 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-25 15:37:46,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-25 15:37:46,929 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-25 15:37:46,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-25 15:37:46,929 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-25 15:37:46,929 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-25 15:37:46,929 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_dev [2022-11-25 15:37:46,929 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_dev [2022-11-25 15:37:46,930 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_dev [2022-11-25 15:37:46,930 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_dev [2022-11-25 15:37:46,930 INFO L130 BoogieDeclarations]: Found specification of procedure p54_free_common [2022-11-25 15:37:46,930 INFO L138 BoogieDeclarations]: Found implementation of procedure p54_free_common [2022-11-25 15:37:46,930 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_stop [2022-11-25 15:37:46,930 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_stop [2022-11-25 15:37:46,930 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-25 15:37:46,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-25 15:37:46,931 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2022-11-25 15:37:46,931 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2022-11-25 15:37:46,931 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-25 15:37:46,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-25 15:37:46,931 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-25 15:37:46,931 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-25 15:37:46,931 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-25 15:37:46,932 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-25 15:37:46,932 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2022-11-25 15:37:46,932 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2022-11-25 15:37:46,932 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-25 15:37:46,932 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-25 15:37:46,932 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 15:37:46,932 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-25 15:37:46,933 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 15:37:46,933 INFO L130 BoogieDeclarations]: Found specification of procedure p54_find_type [2022-11-25 15:37:46,933 INFO L138 BoogieDeclarations]: Found implementation of procedure p54_find_type [2022-11-25 15:37:46,933 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2022-11-25 15:37:46,933 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2022-11-25 15:37:46,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 15:37:46,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-25 15:37:46,933 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_open [2022-11-25 15:37:46,934 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_open [2022-11-25 15:37:46,934 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-25 15:37:46,934 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-25 15:37:46,934 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2022-11-25 15:37:46,934 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2022-11-25 15:37:46,934 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_post_reset [2022-11-25 15:37:46,934 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_post_reset [2022-11-25 15:37:46,934 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2022-11-25 15:37:46,935 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2022-11-25 15:37:46,935 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-25 15:37:46,935 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-25 15:37:46,935 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-25 15:37:46,935 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_disconnect [2022-11-25 15:37:46,935 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_disconnect [2022-11-25 15:37:46,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-25 15:37:46,936 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2022-11-25 15:37:46,936 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2022-11-25 15:37:46,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 15:37:46,936 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_negative [2022-11-25 15:37:46,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_negative [2022-11-25 15:37:46,937 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-25 15:37:46,937 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-25 15:37:46,937 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-11-25 15:37:46,937 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-11-25 15:37:46,937 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-25 15:37:46,937 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-25 15:37:46,937 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2022-11-25 15:37:46,938 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2022-11-25 15:37:46,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 15:37:46,938 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_pre_reset [2022-11-25 15:37:46,938 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_pre_reset [2022-11-25 15:37:46,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-25 15:37:46,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-25 15:37:46,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-25 15:37:46,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-25 15:37:46,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 15:37:46,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 15:37:46,939 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_read [2022-11-25 15:37:46,939 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_read [2022-11-25 15:37:46,939 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_write [2022-11-25 15:37:46,939 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_write [2022-11-25 15:37:46,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-25 15:37:46,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-25 15:37:46,940 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-25 15:37:46,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-25 15:37:46,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 15:37:46,940 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_udev_of_p54u_priv [2022-11-25 15:37:46,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_udev_of_p54u_priv [2022-11-25 15:37:46,940 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_resume [2022-11-25 15:37:46,940 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_resume [2022-11-25 15:37:46,940 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-25 15:37:46,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-25 15:37:46,941 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-11-25 15:37:46,941 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-11-25 15:37:46,941 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2022-11-25 15:37:46,941 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2022-11-25 15:37:46,941 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_free_urbs [2022-11-25 15:37:46,941 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_free_urbs [2022-11-25 15:37:46,941 INFO L130 BoogieDeclarations]: Found specification of procedure skb_unlink [2022-11-25 15:37:46,942 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_unlink [2022-11-25 15:37:46,942 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-25 15:37:46,942 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-25 15:37:46,944 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_bulk_msg [2022-11-25 15:37:46,945 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_bulk_msg [2022-11-25 15:37:46,945 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-11-25 15:37:46,945 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-11-25 15:37:46,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 15:37:46,945 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2022-11-25 15:37:46,945 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2022-11-25 15:37:46,946 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2022-11-25 15:37:46,946 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2022-11-25 15:37:46,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 15:37:46,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 15:37:47,655 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 15:37:47,658 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 15:37:48,029 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-25 15:38:32,885 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 15:38:32,898 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 15:38:32,898 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 15:38:32,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:38:32 BoogieIcfgContainer [2022-11-25 15:38:32,901 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 15:38:32,903 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 15:38:32,904 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 15:38:32,907 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 15:38:32,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 03:37:43" (1/3) ... [2022-11-25 15:38:32,908 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c1ce631 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:38:32, skipping insertion in model container [2022-11-25 15:38:32,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:37:46" (2/3) ... [2022-11-25 15:38:32,909 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c1ce631 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:38:32, skipping insertion in model container [2022-11-25 15:38:32,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:38:32" (3/3) ... [2022-11-25 15:38:32,910 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--p54--p54usb.ko-entry_point.cil.out.i [2022-11-25 15:38:32,932 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 15:38:32,932 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 15:38:33,035 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 15:38:33,045 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;@363d8706, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 15:38:33,046 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 15:38:33,058 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) [2022-11-25 15:38:33,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-25 15:38:33,071 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:38:33,072 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] [2022-11-25 15:38:33,073 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:38:33,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:38:33,082 INFO L85 PathProgramCache]: Analyzing trace with hash 593702446, now seen corresponding path program 1 times [2022-11-25 15:38:33,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:38:33,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665610341] [2022-11-25 15:38:33,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:38:33,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:38:33,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:34,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 15:38:34,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:34,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:38:34,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:34,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 15:38:34,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:34,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-25 15:38:34,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:34,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:38:34,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:38:34,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665610341] [2022-11-25 15:38:34,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665610341] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:38:34,592 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:38:34,592 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 15:38:34,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712934261] [2022-11-25 15:38:34,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:38:34,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 15:38:34,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:38:34,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 15:38:34,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 15:38:34,655 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) [2022-11-25 15:38:36,813 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 15:38:38,822 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 15:38:40,828 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 15:38:45,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:38:45,309 INFO L93 Difference]: Finished difference Result 2359 states and 3441 transitions. [2022-11-25 15:38:45,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 15:38:45,312 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 [2022-11-25 15:38:45,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:38:45,343 INFO L225 Difference]: With dead ends: 2359 [2022-11-25 15:38:45,343 INFO L226 Difference]: Without dead ends: 1619 [2022-11-25 15:38:45,354 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 [2022-11-25 15:38:45,358 INFO L413 NwaCegarLoop]: 943 mSDtfsCounter, 1749 mSDsluCounter, 1900 mSDsCounter, 0 mSdLazyCounter, 1129 mSolverCounterSat, 918 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1840 SdHoareTripleChecker+Valid, 2843 SdHoareTripleChecker+Invalid, 2050 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 918 IncrementalHoareTripleChecker+Valid, 1129 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2022-11-25 15:38:45,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1840 Valid, 2843 Invalid, 2050 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [918 Valid, 1129 Invalid, 3 Unknown, 0 Unchecked, 10.1s Time] [2022-11-25 15:38:45,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1619 states. [2022-11-25 15:38:45,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1619 to 1405. [2022-11-25 15:38:45,612 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) [2022-11-25 15:38:45,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1405 states to 1405 states and 1946 transitions. [2022-11-25 15:38:45,630 INFO L78 Accepts]: Start accepts. Automaton has 1405 states and 1946 transitions. Word has length 39 [2022-11-25 15:38:45,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:38:45,631 INFO L495 AbstractCegarLoop]: Abstraction has 1405 states and 1946 transitions. [2022-11-25 15:38:45,632 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) [2022-11-25 15:38:45,632 INFO L276 IsEmpty]: Start isEmpty. Operand 1405 states and 1946 transitions. [2022-11-25 15:38:45,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-25 15:38:45,645 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:38:45,645 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] [2022-11-25 15:38:45,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 15:38:45,646 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:38:45,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:38:45,647 INFO L85 PathProgramCache]: Analyzing trace with hash -348083403, now seen corresponding path program 1 times [2022-11-25 15:38:45,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:38:45,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048549279] [2022-11-25 15:38:45,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:38:45,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:38:46,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:46,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 15:38:46,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:46,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:38:46,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:46,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 15:38:46,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:46,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-25 15:38:46,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:46,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-25 15:38:46,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:46,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:38:46,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:46,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 15:38:46,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:46,677 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-25 15:38:46,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:38:46,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048549279] [2022-11-25 15:38:46,678 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048549279] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:38:46,679 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:38:46,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 15:38:46,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63516407] [2022-11-25 15:38:46,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:38:46,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 15:38:46,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:38:46,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 15:38:46,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 15:38:46,688 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) [2022-11-25 15:38:48,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 15:38:50,791 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 15:38:52,797 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 15:38:55,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:38:55,019 INFO L93 Difference]: Finished difference Result 1637 states and 2273 transitions. [2022-11-25 15:38:55,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 15:38:55,020 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 [2022-11-25 15:38:55,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:38:55,031 INFO L225 Difference]: With dead ends: 1637 [2022-11-25 15:38:55,031 INFO L226 Difference]: Without dead ends: 1626 [2022-11-25 15:38:55,033 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 [2022-11-25 15:38:55,034 INFO L413 NwaCegarLoop]: 819 mSDtfsCounter, 1617 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 743 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s 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, 8.1s IncrementalHoareTripleChecker+Time [2022-11-25 15:38:55,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1694 Valid, 1392 Invalid, 1158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [743 Valid, 412 Invalid, 3 Unknown, 0 Unchecked, 8.1s Time] [2022-11-25 15:38:55,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1626 states. [2022-11-25 15:38:55,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1626 to 1405. [2022-11-25 15:38:55,196 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) [2022-11-25 15:38:55,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1405 states to 1405 states and 1945 transitions. [2022-11-25 15:38:55,208 INFO L78 Accepts]: Start accepts. Automaton has 1405 states and 1945 transitions. Word has length 59 [2022-11-25 15:38:55,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:38:55,209 INFO L495 AbstractCegarLoop]: Abstraction has 1405 states and 1945 transitions. [2022-11-25 15:38:55,209 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) [2022-11-25 15:38:55,209 INFO L276 IsEmpty]: Start isEmpty. Operand 1405 states and 1945 transitions. [2022-11-25 15:38:55,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-25 15:38:55,214 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:38:55,215 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] [2022-11-25 15:38:55,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 15:38:55,215 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:38:55,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:38:55,216 INFO L85 PathProgramCache]: Analyzing trace with hash -290825101, now seen corresponding path program 1 times [2022-11-25 15:38:55,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:38:55,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902124017] [2022-11-25 15:38:55,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:38:55,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:38:55,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:56,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 15:38:56,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:56,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:38:56,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:56,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 15:38:56,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:56,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-25 15:38:56,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:56,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-25 15:38:56,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:56,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:38:56,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:56,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 15:38:56,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:56,208 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-25 15:38:56,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:38:56,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902124017] [2022-11-25 15:38:56,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902124017] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:38:56,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:38:56,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 15:38:56,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889408554] [2022-11-25 15:38:56,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:38:56,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 15:38:56,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:38:56,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 15:38:56,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 15:38:56,211 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) [2022-11-25 15:38:58,286 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 [] [2022-11-25 15:39:01,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:39:01,008 INFO L93 Difference]: Finished difference Result 1617 states and 2247 transitions. [2022-11-25 15:39:01,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 15:39:01,009 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 [2022-11-25 15:39:01,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:39:01,020 INFO L225 Difference]: With dead ends: 1617 [2022-11-25 15:39:01,020 INFO L226 Difference]: Without dead ends: 1614 [2022-11-25 15:39:01,025 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-11-25 15:39:01,027 INFO L413 NwaCegarLoop]: 808 mSDtfsCounter, 1342 mSDsluCounter, 1029 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 514 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1416 SdHoareTripleChecker+Valid, 1837 SdHoareTripleChecker+Invalid, 1088 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 514 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-11-25 15:39:01,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1416 Valid, 1837 Invalid, 1088 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [514 Valid, 573 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-11-25 15:39:01,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1614 states. [2022-11-25 15:39:01,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1614 to 1404. [2022-11-25 15:39:01,130 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) [2022-11-25 15:39:01,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1404 states to 1404 states and 1943 transitions. [2022-11-25 15:39:01,143 INFO L78 Accepts]: Start accepts. Automaton has 1404 states and 1943 transitions. Word has length 59 [2022-11-25 15:39:01,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:39:01,147 INFO L495 AbstractCegarLoop]: Abstraction has 1404 states and 1943 transitions. [2022-11-25 15:39:01,147 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) [2022-11-25 15:39:01,147 INFO L276 IsEmpty]: Start isEmpty. Operand 1404 states and 1943 transitions. [2022-11-25 15:39:01,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-11-25 15:39:01,149 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:39:01,149 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] [2022-11-25 15:39:01,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 15:39:01,150 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:39:01,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:39:01,151 INFO L85 PathProgramCache]: Analyzing trace with hash -425857174, now seen corresponding path program 1 times [2022-11-25 15:39:01,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:39:01,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426714748] [2022-11-25 15:39:01,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:39:01,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:39:01,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:01,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 15:39:01,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:02,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:39:02,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:02,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 15:39:02,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:02,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-25 15:39:02,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:02,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-25 15:39:02,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:02,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:39:02,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:02,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 15:39:02,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:02,139 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-25 15:39:02,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:39:02,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426714748] [2022-11-25 15:39:02,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426714748] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:39:02,140 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:39:02,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 15:39:02,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768428015] [2022-11-25 15:39:02,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:39:02,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 15:39:02,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:39:02,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 15:39:02,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 15:39:02,143 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) [2022-11-25 15:39:04,240 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 15:39:06,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:39:06,236 INFO L93 Difference]: Finished difference Result 1616 states and 2245 transitions. [2022-11-25 15:39:06,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 15:39:06,237 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 [2022-11-25 15:39:06,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:39:06,250 INFO L225 Difference]: With dead ends: 1616 [2022-11-25 15:39:06,250 INFO L226 Difference]: Without dead ends: 1613 [2022-11-25 15:39:06,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-11-25 15:39:06,255 INFO L413 NwaCegarLoop]: 800 mSDtfsCounter, 1605 mSDsluCounter, 551 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 743 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1679 SdHoareTripleChecker+Valid, 1351 SdHoareTripleChecker+Invalid, 1152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 743 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-11-25 15:39:06,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1679 Valid, 1351 Invalid, 1152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [743 Valid, 408 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-11-25 15:39:06,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1613 states. [2022-11-25 15:39:06,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1613 to 1403. [2022-11-25 15:39:06,352 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) [2022-11-25 15:39:06,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1403 states to 1403 states and 1941 transitions. [2022-11-25 15:39:06,362 INFO L78 Accepts]: Start accepts. Automaton has 1403 states and 1941 transitions. Word has length 60 [2022-11-25 15:39:06,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:39:06,363 INFO L495 AbstractCegarLoop]: Abstraction has 1403 states and 1941 transitions. [2022-11-25 15:39:06,363 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) [2022-11-25 15:39:06,363 INFO L276 IsEmpty]: Start isEmpty. Operand 1403 states and 1941 transitions. [2022-11-25 15:39:06,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-25 15:39:06,366 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:39:06,367 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] [2022-11-25 15:39:06,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 15:39:06,367 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:39:06,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:39:06,368 INFO L85 PathProgramCache]: Analyzing trace with hash -316879274, now seen corresponding path program 1 times [2022-11-25 15:39:06,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:39:06,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228787] [2022-11-25 15:39:06,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:39:06,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:39:06,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:06,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 15:39:07,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:07,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:39:07,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:07,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 15:39:07,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:07,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-25 15:39:07,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:07,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-25 15:39:07,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:07,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:39:07,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:07,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 15:39:07,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:07,133 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-25 15:39:07,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:39:07,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228787] [2022-11-25 15:39:07,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228787] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:39:07,134 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:39:07,134 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 15:39:07,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57937583] [2022-11-25 15:39:07,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:39:07,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 15:39:07,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:39:07,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 15:39:07,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 15:39:07,138 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) [2022-11-25 15:39:09,217 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 15:39:11,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:39:11,359 INFO L93 Difference]: Finished difference Result 1615 states and 2243 transitions. [2022-11-25 15:39:11,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 15:39:11,359 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 [2022-11-25 15:39:11,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:39:11,369 INFO L225 Difference]: With dead ends: 1615 [2022-11-25 15:39:11,370 INFO L226 Difference]: Without dead ends: 1612 [2022-11-25 15:39:11,371 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-11-25 15:39:11,372 INFO L413 NwaCegarLoop]: 798 mSDtfsCounter, 1599 mSDsluCounter, 550 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 736 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s 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, 4.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:39:11,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1674 Valid, 1348 Invalid, 1145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [736 Valid, 408 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2022-11-25 15:39:11,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1612 states. [2022-11-25 15:39:11,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1612 to 1402. [2022-11-25 15:39:11,496 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) [2022-11-25 15:39:11,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1402 states to 1402 states and 1939 transitions. [2022-11-25 15:39:11,507 INFO L78 Accepts]: Start accepts. Automaton has 1402 states and 1939 transitions. Word has length 61 [2022-11-25 15:39:11,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:39:11,507 INFO L495 AbstractCegarLoop]: Abstraction has 1402 states and 1939 transitions. [2022-11-25 15:39:11,508 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) [2022-11-25 15:39:11,508 INFO L276 IsEmpty]: Start isEmpty. Operand 1402 states and 1939 transitions. [2022-11-25 15:39:11,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-11-25 15:39:11,510 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:39:11,510 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] [2022-11-25 15:39:11,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 15:39:11,511 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:39:11,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:39:11,511 INFO L85 PathProgramCache]: Analyzing trace with hash -1233526803, now seen corresponding path program 1 times [2022-11-25 15:39:11,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:39:11,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824630573] [2022-11-25 15:39:11,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:39:11,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:39:11,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:12,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 15:39:12,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:12,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:39:12,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:12,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 15:39:12,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:12,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-25 15:39:12,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:12,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-25 15:39:12,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:12,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:39:12,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:12,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 15:39:12,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:12,404 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-25 15:39:12,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:39:12,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824630573] [2022-11-25 15:39:12,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824630573] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:39:12,406 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:39:12,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 15:39:12,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227800415] [2022-11-25 15:39:12,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:39:12,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 15:39:12,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:39:12,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 15:39:12,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 15:39:12,408 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) [2022-11-25 15:39:14,504 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 15:39:16,514 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 15:39:20,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:39:20,834 INFO L93 Difference]: Finished difference Result 4572 states and 6362 transitions. [2022-11-25 15:39:20,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 15:39:20,835 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 [2022-11-25 15:39:20,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:39:20,858 INFO L225 Difference]: With dead ends: 4572 [2022-11-25 15:39:20,858 INFO L226 Difference]: Without dead ends: 3180 [2022-11-25 15:39:20,864 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 [2022-11-25 15:39:20,865 INFO L413 NwaCegarLoop]: 949 mSDtfsCounter, 1731 mSDsluCounter, 2393 mSDsCounter, 0 mSdLazyCounter, 1317 mSolverCounterSat, 896 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1824 SdHoareTripleChecker+Valid, 3342 SdHoareTripleChecker+Invalid, 2215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 896 IncrementalHoareTripleChecker+Valid, 1317 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:39:20,866 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1824 Valid, 3342 Invalid, 2215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [896 Valid, 1317 Invalid, 2 Unknown, 0 Unchecked, 8.0s Time] [2022-11-25 15:39:20,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3180 states. [2022-11-25 15:39:21,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3180 to 2755. [2022-11-25 15:39:21,091 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) [2022-11-25 15:39:21,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2755 states to 2755 states and 3824 transitions. [2022-11-25 15:39:21,105 INFO L78 Accepts]: Start accepts. Automaton has 2755 states and 3824 transitions. Word has length 62 [2022-11-25 15:39:21,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:39:21,105 INFO L495 AbstractCegarLoop]: Abstraction has 2755 states and 3824 transitions. [2022-11-25 15:39:21,106 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) [2022-11-25 15:39:21,106 INFO L276 IsEmpty]: Start isEmpty. Operand 2755 states and 3824 transitions. [2022-11-25 15:39:21,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-11-25 15:39:21,111 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:39:21,111 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] [2022-11-25 15:39:21,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 15:39:21,112 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:39:21,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:39:21,113 INFO L85 PathProgramCache]: Analyzing trace with hash -606920599, now seen corresponding path program 1 times [2022-11-25 15:39:21,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:39:21,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344389851] [2022-11-25 15:39:21,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:39:21,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:39:21,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:21,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 15:39:21,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:21,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:39:21,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:21,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 15:39:21,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:21,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-25 15:39:21,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:21,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-25 15:39:21,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:21,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-25 15:39:21,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:21,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-25 15:39:21,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:21,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-25 15:39:21,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:22,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-25 15:39:22,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:22,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-25 15:39:22,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:22,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-25 15:39:22,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:22,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-25 15:39:22,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:22,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-25 15:39:22,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:22,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:39:22,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:22,077 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-25 15:39:22,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:39:22,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344389851] [2022-11-25 15:39:22,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344389851] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:39:22,078 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:39:22,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 15:39:22,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789794814] [2022-11-25 15:39:22,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:39:22,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 15:39:22,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:39:22,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 15:39:22,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-25 15:39:22,083 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) [2022-11-25 15:39:24,185 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 15:39:26,189 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 15:39:28,197 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 15:39:30,202 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 15:39:32,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:39:32,832 INFO L93 Difference]: Finished difference Result 6206 states and 8662 transitions. [2022-11-25 15:39:32,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 15:39:32,833 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 [2022-11-25 15:39:32,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:39:32,854 INFO L225 Difference]: With dead ends: 6206 [2022-11-25 15:39:32,855 INFO L226 Difference]: Without dead ends: 3469 [2022-11-25 15:39:32,866 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 [2022-11-25 15:39:32,867 INFO L413 NwaCegarLoop]: 830 mSDtfsCounter, 964 mSDsluCounter, 1800 mSDsCounter, 0 mSdLazyCounter, 888 mSolverCounterSat, 833 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 994 SdHoareTripleChecker+Valid, 2630 SdHoareTripleChecker+Invalid, 1725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 833 IncrementalHoareTripleChecker+Valid, 888 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2022-11-25 15:39:32,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [994 Valid, 2630 Invalid, 1725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [833 Valid, 888 Invalid, 4 Unknown, 0 Unchecked, 10.3s Time] [2022-11-25 15:39:32,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3469 states. [2022-11-25 15:39:33,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3469 to 2813. [2022-11-25 15:39:33,083 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) [2022-11-25 15:39:33,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2813 states to 2813 states and 3902 transitions. [2022-11-25 15:39:33,097 INFO L78 Accepts]: Start accepts. Automaton has 2813 states and 3902 transitions. Word has length 104 [2022-11-25 15:39:33,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:39:33,098 INFO L495 AbstractCegarLoop]: Abstraction has 2813 states and 3902 transitions. [2022-11-25 15:39:33,099 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) [2022-11-25 15:39:33,099 INFO L276 IsEmpty]: Start isEmpty. Operand 2813 states and 3902 transitions. [2022-11-25 15:39:33,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-11-25 15:39:33,111 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:39:33,111 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] [2022-11-25 15:39:33,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 15:39:33,112 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:39:33,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:39:33,112 INFO L85 PathProgramCache]: Analyzing trace with hash 1485809213, now seen corresponding path program 1 times [2022-11-25 15:39:33,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:39:33,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996247209] [2022-11-25 15:39:33,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:39:33,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:39:33,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:33,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 15:39:33,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:33,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:39:33,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:33,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 15:39:33,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:33,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-25 15:39:33,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:33,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-25 15:39:33,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:33,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:39:33,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:33,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 15:39:33,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:33,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-25 15:39:33,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:33,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-25 15:39:33,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:33,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-25 15:39:33,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:34,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-25 15:39:34,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:34,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-25 15:39:34,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:34,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-25 15:39:34,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:34,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-25 15:39:34,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:34,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-25 15:39:34,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:34,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-25 15:39:34,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:34,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:39:34,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:34,074 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-25 15:39:34,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:39:34,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996247209] [2022-11-25 15:39:34,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996247209] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:39:34,075 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:39:34,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 15:39:34,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998429869] [2022-11-25 15:39:34,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:39:34,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 15:39:34,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:39:34,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 15:39:34,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-25 15:39:34,077 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) [2022-11-25 15:39:36,164 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 15:39:38,181 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 15:39:40,188 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 15:39:42,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:39:42,861 INFO L93 Difference]: Finished difference Result 6780 states and 9551 transitions. [2022-11-25 15:39:42,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 15:39:42,862 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 [2022-11-25 15:39:42,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:39:42,884 INFO L225 Difference]: With dead ends: 6780 [2022-11-25 15:39:42,885 INFO L226 Difference]: Without dead ends: 3993 [2022-11-25 15:39:42,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-11-25 15:39:42,897 INFO L413 NwaCegarLoop]: 1012 mSDtfsCounter, 853 mSDsluCounter, 2168 mSDsCounter, 0 mSdLazyCounter, 985 mSolverCounterSat, 617 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 908 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, 8.3s IncrementalHoareTripleChecker+Time [2022-11-25 15:39:42,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [908 Valid, 3180 Invalid, 1605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [617 Valid, 985 Invalid, 3 Unknown, 0 Unchecked, 8.3s Time] [2022-11-25 15:39:42,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3993 states. [2022-11-25 15:39:43,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3993 to 2825. [2022-11-25 15:39:43,123 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) [2022-11-25 15:39:43,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2825 states to 2825 states and 3914 transitions. [2022-11-25 15:39:43,136 INFO L78 Accepts]: Start accepts. Automaton has 2825 states and 3914 transitions. Word has length 133 [2022-11-25 15:39:43,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:39:43,137 INFO L495 AbstractCegarLoop]: Abstraction has 2825 states and 3914 transitions. [2022-11-25 15:39:43,137 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) [2022-11-25 15:39:43,137 INFO L276 IsEmpty]: Start isEmpty. Operand 2825 states and 3914 transitions. [2022-11-25 15:39:43,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-11-25 15:39:43,142 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:39:43,142 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] [2022-11-25 15:39:43,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 15:39:43,143 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:39:43,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:39:43,143 INFO L85 PathProgramCache]: Analyzing trace with hash 259643531, now seen corresponding path program 1 times [2022-11-25 15:39:43,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:39:43,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278550158] [2022-11-25 15:39:43,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:39:43,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:39:43,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:43,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 15:39:43,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:43,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:39:43,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:43,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 15:39:43,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:43,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-25 15:39:43,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:43,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-25 15:39:43,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:43,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:39:43,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:43,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 15:39:43,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:43,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-25 15:39:44,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:44,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-25 15:39:44,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:44,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-25 15:39:44,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:44,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-25 15:39:44,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:44,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-25 15:39:44,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:44,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-25 15:39:44,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:44,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-25 15:39:44,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:44,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-25 15:39:44,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:44,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-25 15:39:44,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:44,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:39:44,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:44,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-25 15:39:44,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:44,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-11-25 15:39:44,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:44,145 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-25 15:39:44,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:39:44,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278550158] [2022-11-25 15:39:44,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278550158] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:39:44,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:39:44,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 15:39:44,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059446422] [2022-11-25 15:39:44,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:39:44,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 15:39:44,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:39:44,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 15:39:44,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-25 15:39:44,149 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) [2022-11-25 15:39:46,312 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 15:39:48,317 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 15:39:50,323 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 15:39:52,327 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 15:39:54,336 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 15:40:05,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:40:05,573 INFO L93 Difference]: Finished difference Result 6269 states and 8742 transitions. [2022-11-25 15:40:05,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 15:40:05,574 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 [2022-11-25 15:40:05,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:40:05,597 INFO L225 Difference]: With dead ends: 6269 [2022-11-25 15:40:05,597 INFO L226 Difference]: Without dead ends: 3470 [2022-11-25 15:40:05,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2022-11-25 15:40:05,610 INFO L413 NwaCegarLoop]: 379 mSDtfsCounter, 1957 mSDsluCounter, 1601 mSDsCounter, 0 mSdLazyCounter, 6918 mSolverCounterSat, 1219 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2089 SdHoareTripleChecker+Valid, 1980 SdHoareTripleChecker+Invalid, 8142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1219 IncrementalHoareTripleChecker+Valid, 6918 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.7s IncrementalHoareTripleChecker+Time [2022-11-25 15:40:05,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2089 Valid, 1980 Invalid, 8142 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1219 Valid, 6918 Invalid, 5 Unknown, 0 Unchecked, 20.7s Time] [2022-11-25 15:40:05,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3470 states. [2022-11-25 15:40:05,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3470 to 2822. [2022-11-25 15:40:05,977 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) [2022-11-25 15:40:05,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2822 states to 2822 states and 3905 transitions. [2022-11-25 15:40:05,992 INFO L78 Accepts]: Start accepts. Automaton has 2822 states and 3905 transitions. Word has length 149 [2022-11-25 15:40:05,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:40:05,992 INFO L495 AbstractCegarLoop]: Abstraction has 2822 states and 3905 transitions. [2022-11-25 15:40:05,993 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) [2022-11-25 15:40:05,994 INFO L276 IsEmpty]: Start isEmpty. Operand 2822 states and 3905 transitions. [2022-11-25 15:40:05,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-11-25 15:40:05,998 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:40:05,998 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] [2022-11-25 15:40:05,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 15:40:05,999 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:40:05,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:40:05,999 INFO L85 PathProgramCache]: Analyzing trace with hash 220942373, now seen corresponding path program 1 times [2022-11-25 15:40:05,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:40:05,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757430551] [2022-11-25 15:40:06,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:40:06,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:40:06,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:07,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 15:40:07,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:07,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:40:07,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:07,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 15:40:07,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:07,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-25 15:40:07,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:07,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-25 15:40:07,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:07,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:40:07,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:07,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 15:40:07,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:07,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-25 15:40:07,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:07,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-25 15:40:07,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:07,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-25 15:40:07,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:07,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-25 15:40:07,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:07,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-25 15:40:07,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:07,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-25 15:40:07,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:07,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-25 15:40:07,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:07,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-25 15:40:07,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:07,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-25 15:40:07,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:07,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:40:07,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:07,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-25 15:40:07,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:07,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-11-25 15:40:07,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:08,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:40:08,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:08,067 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-25 15:40:08,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:40:08,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757430551] [2022-11-25 15:40:08,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757430551] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:40:08,068 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:40:08,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-25 15:40:08,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165517579] [2022-11-25 15:40:08,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:40:08,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 15:40:08,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:40:08,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 15:40:08,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-25 15:40:08,070 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) [2022-11-25 15:40:10,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 15:40:12,159 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 15:40:17,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:40:17,224 INFO L93 Difference]: Finished difference Result 7589 states and 10788 transitions. [2022-11-25 15:40:17,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 15:40:17,225 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 [2022-11-25 15:40:17,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:40:17,250 INFO L225 Difference]: With dead ends: 7589 [2022-11-25 15:40:17,250 INFO L226 Difference]: Without dead ends: 4793 [2022-11-25 15:40:17,263 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2022-11-25 15:40:17,264 INFO L413 NwaCegarLoop]: 1197 mSDtfsCounter, 1621 mSDsluCounter, 7518 mSDsCounter, 0 mSdLazyCounter, 2801 mSolverCounterSat, 989 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1678 SdHoareTripleChecker+Valid, 8715 SdHoareTripleChecker+Invalid, 3792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 989 IncrementalHoareTripleChecker+Valid, 2801 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2022-11-25 15:40:17,264 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1678 Valid, 8715 Invalid, 3792 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [989 Valid, 2801 Invalid, 2 Unknown, 0 Unchecked, 8.5s Time] [2022-11-25 15:40:17,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4793 states. [2022-11-25 15:40:17,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4793 to 2819. [2022-11-25 15:40:17,724 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) [2022-11-25 15:40:17,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2819 states to 2819 states and 3898 transitions. [2022-11-25 15:40:17,737 INFO L78 Accepts]: Start accepts. Automaton has 2819 states and 3898 transitions. Word has length 154 [2022-11-25 15:40:17,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:40:17,738 INFO L495 AbstractCegarLoop]: Abstraction has 2819 states and 3898 transitions. [2022-11-25 15:40:17,738 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) [2022-11-25 15:40:17,739 INFO L276 IsEmpty]: Start isEmpty. Operand 2819 states and 3898 transitions. [2022-11-25 15:40:17,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-11-25 15:40:17,747 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:40:17,747 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] [2022-11-25 15:40:17,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-25 15:40:17,748 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:40:17,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:40:17,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1107992205, now seen corresponding path program 1 times [2022-11-25 15:40:17,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:40:17,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242958752] [2022-11-25 15:40:17,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:40:17,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:40:18,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:19,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 15:40:19,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:19,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:40:19,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:19,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 15:40:19,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:19,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-25 15:40:19,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:19,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-25 15:40:19,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:19,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:40:19,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:19,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 15:40:19,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:19,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-25 15:40:19,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:19,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-25 15:40:19,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:19,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-25 15:40:19,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:19,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-25 15:40:19,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:19,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-25 15:40:19,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:19,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-25 15:40:19,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:19,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-25 15:40:19,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:19,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-25 15:40:19,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:19,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-25 15:40:19,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:19,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:40:19,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:19,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-25 15:40:19,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:19,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-11-25 15:40:19,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:19,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-11-25 15:40:19,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:19,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-11-25 15:40:19,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:19,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-11-25 15:40:19,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:19,457 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-11-25 15:40:19,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:40:19,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242958752] [2022-11-25 15:40:19,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242958752] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:40:19,458 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:40:19,458 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-25 15:40:19,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173443739] [2022-11-25 15:40:19,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:40:19,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 15:40:19,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:40:19,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 15:40:19,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-11-25 15:40:19,461 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) [2022-11-25 15:40:21,544 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 15:40:23,553 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 15:40:25,559 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 15:40:27,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 15:40:29,570 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 15:40:37,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:40:37,382 INFO L93 Difference]: Finished difference Result 6442 states and 9237 transitions. [2022-11-25 15:40:37,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 15:40:37,383 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 [2022-11-25 15:40:37,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:40:37,408 INFO L225 Difference]: With dead ends: 6442 [2022-11-25 15:40:37,408 INFO L226 Difference]: Without dead ends: 5057 [2022-11-25 15:40:37,416 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2022-11-25 15:40:37,417 INFO L413 NwaCegarLoop]: 506 mSDtfsCounter, 2002 mSDsluCounter, 2376 mSDsCounter, 0 mSdLazyCounter, 5544 mSolverCounterSat, 809 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2128 SdHoareTripleChecker+Valid, 2882 SdHoareTripleChecker+Invalid, 6358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 809 IncrementalHoareTripleChecker+Valid, 5544 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.1s IncrementalHoareTripleChecker+Time [2022-11-25 15:40:37,417 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2128 Valid, 2882 Invalid, 6358 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [809 Valid, 5544 Invalid, 5 Unknown, 0 Unchecked, 17.1s Time] [2022-11-25 15:40:37,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5057 states. [2022-11-25 15:40:37,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5057 to 2819. [2022-11-25 15:40:37,743 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) [2022-11-25 15:40:37,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2819 states to 2819 states and 3896 transitions. [2022-11-25 15:40:37,754 INFO L78 Accepts]: Start accepts. Automaton has 2819 states and 3896 transitions. Word has length 184 [2022-11-25 15:40:37,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:40:37,755 INFO L495 AbstractCegarLoop]: Abstraction has 2819 states and 3896 transitions. [2022-11-25 15:40:37,755 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) [2022-11-25 15:40:37,756 INFO L276 IsEmpty]: Start isEmpty. Operand 2819 states and 3896 transitions. [2022-11-25 15:40:37,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-11-25 15:40:37,761 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:40:37,762 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] [2022-11-25 15:40:37,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-25 15:40:37,762 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:40:37,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:40:37,763 INFO L85 PathProgramCache]: Analyzing trace with hash -1299758695, now seen corresponding path program 1 times [2022-11-25 15:40:37,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:40:37,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328712393] [2022-11-25 15:40:37,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:40:37,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:40:38,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:38,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 15:40:38,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:38,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:40:38,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:38,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 15:40:38,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:38,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-25 15:40:38,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:38,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-25 15:40:38,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:38,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:40:38,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:38,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 15:40:38,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:38,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-25 15:40:38,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:38,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-25 15:40:38,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:38,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-25 15:40:38,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:38,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-25 15:40:38,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:38,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-25 15:40:38,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:38,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-25 15:40:38,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:38,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-25 15:40:38,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:38,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-25 15:40:38,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:38,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-25 15:40:38,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:38,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:40:38,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:38,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-25 15:40:38,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:38,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-11-25 15:40:38,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:38,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-11-25 15:40:38,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:38,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-25 15:40:38,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:38,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-25 15:40:38,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:38,698 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-11-25 15:40:38,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:40:38,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328712393] [2022-11-25 15:40:38,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328712393] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:40:38,699 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:40:38,700 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 15:40:38,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731270263] [2022-11-25 15:40:38,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:40:38,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 15:40:38,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:40:38,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 15:40:38,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-25 15:40:38,702 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) [2022-11-25 15:40:40,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 15:40:42,793 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 15:40:44,799 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 15:40:46,804 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 15:40:48,819 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 15:40:54,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:40:54,701 INFO L93 Difference]: Finished difference Result 3402 states and 4774 transitions. [2022-11-25 15:40:54,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 15:40:54,702 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 [2022-11-25 15:40:54,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:40:54,703 INFO L225 Difference]: With dead ends: 3402 [2022-11-25 15:40:54,703 INFO L226 Difference]: Without dead ends: 0 [2022-11-25 15:40:54,715 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 [2022-11-25 15:40:54,716 INFO L413 NwaCegarLoop]: 393 mSDtfsCounter, 1431 mSDsluCounter, 1297 mSDsCounter, 0 mSdLazyCounter, 3476 mSolverCounterSat, 751 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1558 SdHoareTripleChecker+Valid, 1690 SdHoareTripleChecker+Invalid, 4232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 751 IncrementalHoareTripleChecker+Valid, 3476 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.6s IncrementalHoareTripleChecker+Time [2022-11-25 15:40:54,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1558 Valid, 1690 Invalid, 4232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [751 Valid, 3476 Invalid, 5 Unknown, 0 Unchecked, 15.6s Time] [2022-11-25 15:40:54,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-25 15:40:54,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-25 15:40:54,718 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) [2022-11-25 15:40:54,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-25 15:40:54,719 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 189 [2022-11-25 15:40:54,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:40:54,719 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 15:40:54,719 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) [2022-11-25 15:40:54,720 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-25 15:40:54,720 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-25 15:40:54,723 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-25 15:40:54,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-25 15:40:54,727 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.