./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--ems_usb.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c40297-6ce7-40e5-a86b-9dcdd8bef1a5/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c40297-6ce7-40e5-a86b-9dcdd8bef1a5/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c40297-6ce7-40e5-a86b-9dcdd8bef1a5/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c40297-6ce7-40e5-a86b-9dcdd8bef1a5/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--ems_usb.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c40297-6ce7-40e5-a86b-9dcdd8bef1a5/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c40297-6ce7-40e5-a86b-9dcdd8bef1a5/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash be936ec9376452d086f72aa92ac4fe7deb233a068e40e0ed8f478fbc228d19b6 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 05:04:41,749 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 05:04:41,750 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 05:04:41,767 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 05:04:41,768 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 05:04:41,768 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 05:04:41,769 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 05:04:41,771 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 05:04:41,772 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 05:04:41,773 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 05:04:41,774 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 05:04:41,775 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 05:04:41,775 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 05:04:41,776 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 05:04:41,777 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 05:04:41,778 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 05:04:41,779 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 05:04:41,780 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 05:04:41,781 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 05:04:41,783 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 05:04:41,784 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 05:04:41,785 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 05:04:41,786 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 05:04:41,787 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 05:04:41,790 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 05:04:41,790 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 05:04:41,791 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 05:04:41,791 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 05:04:41,792 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 05:04:41,793 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 05:04:41,793 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 05:04:41,794 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 05:04:41,794 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 05:04:41,795 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 05:04:41,796 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 05:04:41,796 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 05:04:41,796 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 05:04:41,796 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 05:04:41,797 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 05:04:41,797 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 05:04:41,798 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 05:04:41,799 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c40297-6ce7-40e5-a86b-9dcdd8bef1a5/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 05:04:41,814 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 05:04:41,814 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 05:04:41,814 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 05:04:41,823 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 05:04:41,824 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 05:04:41,824 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 05:04:41,824 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 05:04:41,824 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 05:04:41,825 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 05:04:41,825 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 05:04:41,825 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 05:04:41,825 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 05:04:41,825 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 05:04:41,825 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 05:04:41,826 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 05:04:41,826 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 05:04:41,826 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 05:04:41,826 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 05:04:41,827 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 05:04:41,827 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 05:04:41,827 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 05:04:41,827 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 05:04:41,827 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 05:04:41,827 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 05:04:41,828 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 05:04:41,828 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 05:04:41,828 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 05:04:41,828 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 05:04:41,828 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 05:04:41,829 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 05:04:41,829 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 05:04:41,829 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 05:04:41,829 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 05:04:41,829 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 05:04:41,830 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 05:04:41,830 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 05:04:41,830 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 05:04:41,830 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 05:04:41,830 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c40297-6ce7-40e5-a86b-9dcdd8bef1a5/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c40297-6ce7-40e5-a86b-9dcdd8bef1a5/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be936ec9376452d086f72aa92ac4fe7deb233a068e40e0ed8f478fbc228d19b6 [2022-12-14 05:04:41,989 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 05:04:42,005 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 05:04:42,007 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 05:04:42,008 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 05:04:42,008 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 05:04:42,009 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c40297-6ce7-40e5-a86b-9dcdd8bef1a5/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--ems_usb.ko-entry_point.cil.out.i [2022-12-14 05:04:44,608 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 05:04:44,909 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 05:04:44,910 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c40297-6ce7-40e5-a86b-9dcdd8bef1a5/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--ems_usb.ko-entry_point.cil.out.i [2022-12-14 05:04:44,931 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c40297-6ce7-40e5-a86b-9dcdd8bef1a5/bin/utaipan-gh47qXpMRh/data/a757067bc/724707bb24904483bef9dfc5b6b0c728/FLAG841ddab7f [2022-12-14 05:04:44,941 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c40297-6ce7-40e5-a86b-9dcdd8bef1a5/bin/utaipan-gh47qXpMRh/data/a757067bc/724707bb24904483bef9dfc5b6b0c728 [2022-12-14 05:04:44,944 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 05:04:44,945 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 05:04:44,946 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 05:04:44,946 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 05:04:44,949 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 05:04:44,950 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:04:44" (1/1) ... [2022-12-14 05:04:44,951 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c78a8c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:04:44, skipping insertion in model container [2022-12-14 05:04:44,951 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:04:44" (1/1) ... [2022-12-14 05:04:44,956 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 05:04:45,017 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 05:04:45,515 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-12-14 05:04:45,517 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 05:04:45,691 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 05:04:45,740 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_22c40297-6ce7-40e5-a86b-9dcdd8bef1a5/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--ems_usb.ko-entry_point.cil.out.i[164250,164263] [2022-12-14 05:04:45,788 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-12-14 05:04:45,789 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-12-14 05:04:45,797 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 05:04:45,798 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:04:45,829 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-12-14 05:04:45,859 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 05:04:45,859 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-14 05:04:45,860 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 05:04:45,863 WARN L623 FunctionHandler]: Unknown extern function alloc_can_skb [2022-12-14 05:04:45,866 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-12-14 05:04:45,870 WARN L623 FunctionHandler]: Unknown extern function alloc_can_err_skb [2022-12-14 05:04:45,871 WARN L623 FunctionHandler]: Unknown extern function can_bus_off [2022-12-14 05:04:45,876 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-12-14 05:04:45,881 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 05:04:45,883 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 05:04:45,884 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-14 05:04:45,885 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 05:04:45,889 WARN L623 FunctionHandler]: Unknown extern function usb_free_coherent [2022-12-14 05:04:45,890 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 05:04:45,891 WARN L623 FunctionHandler]: Unknown extern function can_get_echo_skb [2022-12-14 05:04:45,898 WARN L623 FunctionHandler]: Unknown extern function usb_bulk_msg [2022-12-14 05:04:45,909 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 05:04:45,910 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_coherent [2022-12-14 05:04:45,911 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 05:04:45,912 WARN L623 FunctionHandler]: Unknown extern function usb_anchor_urb [2022-12-14 05:04:45,912 WARN L623 FunctionHandler]: Unknown extern function usb_unanchor_urb [2022-12-14 05:04:45,912 WARN L623 FunctionHandler]: Unknown extern function usb_free_coherent [2022-12-14 05:04:45,913 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 05:04:45,913 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 05:04:45,915 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 05:04:45,916 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 05:04:45,919 WARN L623 FunctionHandler]: Unknown extern function usb_unlink_urb [2022-12-14 05:04:45,919 WARN L623 FunctionHandler]: Unknown extern function usb_kill_anchored_urbs [2022-12-14 05:04:45,920 WARN L623 FunctionHandler]: Unknown extern function usb_kill_anchored_urbs [2022-12-14 05:04:45,923 WARN L623 FunctionHandler]: Unknown extern function open_candev [2022-12-14 05:04:45,924 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-14 05:04:45,924 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 05:04:45,924 WARN L623 FunctionHandler]: Unknown extern function close_candev [2022-12-14 05:04:45,929 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 05:04:45,929 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_coherent [2022-12-14 05:04:45,930 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 05:04:45,933 WARN L623 FunctionHandler]: Unknown extern function usb_unanchor_urb [2022-12-14 05:04:45,933 WARN L623 FunctionHandler]: Unknown extern function usb_free_coherent [2022-12-14 05:04:45,934 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 05:04:45,935 WARN L623 FunctionHandler]: Unknown extern function usb_anchor_urb [2022-12-14 05:04:45,935 WARN L623 FunctionHandler]: Unknown extern function can_put_echo_skb [2022-12-14 05:04:45,936 WARN L623 FunctionHandler]: Unknown extern function can_free_echo_skb [2022-12-14 05:04:45,936 WARN L623 FunctionHandler]: Unknown extern function usb_unanchor_urb [2022-12-14 05:04:45,936 WARN L623 FunctionHandler]: Unknown extern function usb_free_coherent [2022-12-14 05:04:45,937 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 05:04:45,937 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-14 05:04:45,937 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 05:04:45,938 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 05:04:45,942 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 05:04:45,942 WARN L623 FunctionHandler]: Unknown extern function close_candev [2022-12-14 05:04:45,947 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 05:04:45,952 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 05:04:45,959 WARN L623 FunctionHandler]: Unknown extern function alloc_candev [2022-12-14 05:04:45,960 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 05:04:45,962 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 05:04:45,964 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 05:04:45,964 WARN L623 FunctionHandler]: Unknown extern function register_candev [2022-12-14 05:04:45,964 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 05:04:45,965 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 05:04:45,965 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 05:04:45,965 WARN L623 FunctionHandler]: Unknown extern function free_candev [2022-12-14 05:04:45,968 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-12-14 05:04:45,969 WARN L623 FunctionHandler]: Unknown extern function free_candev [2022-12-14 05:04:45,969 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 05:04:45,989 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 05:04:45,992 WARN L623 FunctionHandler]: Unknown extern function ldv_ndo_init_2 [2022-12-14 05:04:45,993 WARN L623 FunctionHandler]: Unknown extern function ldv_ndo_uninit_2 [2022-12-14 05:04:45,997 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-12-14 05:04:45,998 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-12-14 05:04:46,004 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 05:04:46,009 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 05:04:46,028 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 05:04:46,028 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 05:04:46,029 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 05:04:46,034 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 05:04:46,038 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:04:46,056 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 05:04:46,130 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-12-14 05:04:46,130 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 05:04:46,132 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 05:04:46,134 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_22c40297-6ce7-40e5-a86b-9dcdd8bef1a5/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--ems_usb.ko-entry_point.cil.out.i[164250,164263] [2022-12-14 05:04:46,136 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-12-14 05:04:46,136 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-12-14 05:04:46,137 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 05:04:46,137 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:04:46,140 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-12-14 05:04:46,142 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 05:04:46,142 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-14 05:04:46,143 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 05:04:46,143 WARN L623 FunctionHandler]: Unknown extern function alloc_can_skb [2022-12-14 05:04:46,145 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-12-14 05:04:46,146 WARN L623 FunctionHandler]: Unknown extern function alloc_can_err_skb [2022-12-14 05:04:46,147 WARN L623 FunctionHandler]: Unknown extern function can_bus_off [2022-12-14 05:04:46,150 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-12-14 05:04:46,151 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 05:04:46,152 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 05:04:46,153 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-14 05:04:46,153 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 05:04:46,160 WARN L623 FunctionHandler]: Unknown extern function usb_free_coherent [2022-12-14 05:04:46,160 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 05:04:46,161 WARN L623 FunctionHandler]: Unknown extern function can_get_echo_skb [2022-12-14 05:04:46,162 WARN L623 FunctionHandler]: Unknown extern function usb_bulk_msg [2022-12-14 05:04:46,164 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 05:04:46,164 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_coherent [2022-12-14 05:04:46,165 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 05:04:46,165 WARN L623 FunctionHandler]: Unknown extern function usb_anchor_urb [2022-12-14 05:04:46,166 WARN L623 FunctionHandler]: Unknown extern function usb_unanchor_urb [2022-12-14 05:04:46,166 WARN L623 FunctionHandler]: Unknown extern function usb_free_coherent [2022-12-14 05:04:46,166 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 05:04:46,177 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 05:04:46,178 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 05:04:46,178 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 05:04:46,179 WARN L623 FunctionHandler]: Unknown extern function usb_unlink_urb [2022-12-14 05:04:46,179 WARN L623 FunctionHandler]: Unknown extern function usb_kill_anchored_urbs [2022-12-14 05:04:46,180 WARN L623 FunctionHandler]: Unknown extern function usb_kill_anchored_urbs [2022-12-14 05:04:46,180 WARN L623 FunctionHandler]: Unknown extern function open_candev [2022-12-14 05:04:46,181 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-14 05:04:46,181 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 05:04:46,181 WARN L623 FunctionHandler]: Unknown extern function close_candev [2022-12-14 05:04:46,182 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 05:04:46,183 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_coherent [2022-12-14 05:04:46,183 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 05:04:46,185 WARN L623 FunctionHandler]: Unknown extern function usb_unanchor_urb [2022-12-14 05:04:46,185 WARN L623 FunctionHandler]: Unknown extern function usb_free_coherent [2022-12-14 05:04:46,185 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 05:04:46,189 WARN L623 FunctionHandler]: Unknown extern function usb_anchor_urb [2022-12-14 05:04:46,189 WARN L623 FunctionHandler]: Unknown extern function can_put_echo_skb [2022-12-14 05:04:46,190 WARN L623 FunctionHandler]: Unknown extern function can_free_echo_skb [2022-12-14 05:04:46,190 WARN L623 FunctionHandler]: Unknown extern function usb_unanchor_urb [2022-12-14 05:04:46,190 WARN L623 FunctionHandler]: Unknown extern function usb_free_coherent [2022-12-14 05:04:46,190 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 05:04:46,191 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-14 05:04:46,191 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 05:04:46,191 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 05:04:46,192 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 05:04:46,192 WARN L623 FunctionHandler]: Unknown extern function close_candev [2022-12-14 05:04:46,193 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 05:04:46,195 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 05:04:46,196 WARN L623 FunctionHandler]: Unknown extern function alloc_candev [2022-12-14 05:04:46,196 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 05:04:46,198 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 05:04:46,199 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 05:04:46,200 WARN L623 FunctionHandler]: Unknown extern function register_candev [2022-12-14 05:04:46,200 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 05:04:46,200 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 05:04:46,200 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 05:04:46,200 WARN L623 FunctionHandler]: Unknown extern function free_candev [2022-12-14 05:04:46,201 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-12-14 05:04:46,201 WARN L623 FunctionHandler]: Unknown extern function free_candev [2022-12-14 05:04:46,201 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 05:04:46,204 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 05:04:46,205 WARN L623 FunctionHandler]: Unknown extern function ldv_ndo_init_2 [2022-12-14 05:04:46,206 WARN L623 FunctionHandler]: Unknown extern function ldv_ndo_uninit_2 [2022-12-14 05:04:46,208 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-12-14 05:04:46,209 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-12-14 05:04:46,209 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 05:04:46,211 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 05:04:46,214 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 05:04:46,214 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 05:04:46,214 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 05:04:46,216 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 05:04:46,217 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:04:46,248 INFO L208 MainTranslator]: Completed translation [2022-12-14 05:04:46,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:04:46 WrapperNode [2022-12-14 05:04:46,249 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 05:04:46,250 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 05:04:46,250 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 05:04:46,250 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 05:04:46,255 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:04:46" (1/1) ... [2022-12-14 05:04:46,288 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:04:46" (1/1) ... [2022-12-14 05:04:46,347 INFO L138 Inliner]: procedures = 169, calls = 735, calls flagged for inlining = 77, calls inlined = 77, statements flattened = 1996 [2022-12-14 05:04:46,347 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 05:04:46,348 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 05:04:46,348 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 05:04:46,348 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 05:04:46,355 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:04:46" (1/1) ... [2022-12-14 05:04:46,355 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:04:46" (1/1) ... [2022-12-14 05:04:46,365 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:04:46" (1/1) ... [2022-12-14 05:04:46,365 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:04:46" (1/1) ... [2022-12-14 05:04:46,402 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:04:46" (1/1) ... [2022-12-14 05:04:46,408 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:04:46" (1/1) ... [2022-12-14 05:04:46,416 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:04:46" (1/1) ... [2022-12-14 05:04:46,422 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:04:46" (1/1) ... [2022-12-14 05:04:46,433 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 05:04:46,433 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 05:04:46,433 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 05:04:46,433 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 05:04:46,434 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:04:46" (1/1) ... [2022-12-14 05:04:46,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 05:04:46,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c40297-6ce7-40e5-a86b-9dcdd8bef1a5/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:04:46,459 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c40297-6ce7-40e5-a86b-9dcdd8bef1a5/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 05:04:46,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c40297-6ce7-40e5-a86b-9dcdd8bef1a5/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 05:04:46,486 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-12-14 05:04:46,486 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-12-14 05:04:46,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 05:04:46,486 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_18 [2022-12-14 05:04:46,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_18 [2022-12-14 05:04:46,486 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_4 [2022-12-14 05:04:46,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_4 [2022-12-14 05:04:46,486 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_3 [2022-12-14 05:04:46,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_3 [2022-12-14 05:04:46,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_2 [2022-12-14 05:04:46,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_2 [2022-12-14 05:04:46,487 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-12-14 05:04:46,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-14 05:04:46,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-12-14 05:04:46,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-12-14 05:04:46,487 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 05:04:46,487 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-12-14 05:04:46,487 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-12-14 05:04:46,487 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_read_bulk_callback [2022-12-14 05:04:46,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_read_bulk_callback [2022-12-14 05:04:46,487 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_present [2022-12-14 05:04:46,487 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_present [2022-12-14 05:04:46,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2022-12-14 05:04:46,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2022-12-14 05:04:46,487 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_control_cmd [2022-12-14 05:04:46,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_control_cmd [2022-12-14 05:04:46,487 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-12-14 05:04:46,488 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-12-14 05:04:46,488 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-12-14 05:04:46,488 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-12-14 05:04:46,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-14 05:04:46,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-14 05:04:46,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2022-12-14 05:04:46,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2022-12-14 05:04:46,488 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-12-14 05:04:46,488 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-12-14 05:04:46,488 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_anchored_urbs [2022-12-14 05:04:46,488 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_anchored_urbs [2022-12-14 05:04:46,488 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-12-14 05:04:46,488 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-12-14 05:04:46,488 INFO L130 BoogieDeclarations]: Found specification of procedure init_usb_anchor [2022-12-14 05:04:46,488 INFO L138 BoogieDeclarations]: Found implementation of procedure init_usb_anchor [2022-12-14 05:04:46,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 05:04:46,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-12-14 05:04:46,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-12-14 05:04:46,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-12-14 05:04:46,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-12-14 05:04:46,489 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-14 05:04:46,489 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-14 05:04:46,489 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-12-14 05:04:46,489 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-12-14 05:04:46,489 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_command_msg [2022-12-14 05:04:46,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_command_msg [2022-12-14 05:04:46,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 05:04:46,489 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2022-12-14 05:04:46,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2022-12-14 05:04:46,489 INFO L130 BoogieDeclarations]: Found specification of procedure unlink_all_urbs [2022-12-14 05:04:46,489 INFO L138 BoogieDeclarations]: Found implementation of procedure unlink_all_urbs [2022-12-14 05:04:46,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 05:04:46,489 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-12-14 05:04:46,489 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-12-14 05:04:46,489 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-12-14 05:04:46,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-12-14 05:04:46,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 05:04:46,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 05:04:46,490 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_write_mode [2022-12-14 05:04:46,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_write_mode [2022-12-14 05:04:46,490 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-12-14 05:04:46,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-12-14 05:04:46,490 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2022-12-14 05:04:46,490 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2022-12-14 05:04:46,490 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2022-12-14 05:04:46,490 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2022-12-14 05:04:46,490 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 05:04:46,490 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_disconnect [2022-12-14 05:04:46,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_disconnect [2022-12-14 05:04:46,490 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-12-14 05:04:46,490 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-12-14 05:04:46,490 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2022-12-14 05:04:46,490 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2022-12-14 05:04:46,490 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_read_interrupt_callback [2022-12-14 05:04:46,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_read_interrupt_callback [2022-12-14 05:04:46,490 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2022-12-14 05:04:46,490 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2022-12-14 05:04:46,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 05:04:46,491 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2022-12-14 05:04:46,491 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2022-12-14 05:04:46,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 05:04:46,491 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_rx_err [2022-12-14 05:04:46,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_rx_err [2022-12-14 05:04:46,491 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-12-14 05:04:46,491 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-12-14 05:04:46,491 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-12-14 05:04:46,491 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-12-14 05:04:46,491 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-12-14 05:04:46,491 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-12-14 05:04:46,491 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2022-12-14 05:04:46,491 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2022-12-14 05:04:46,491 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-12-14 05:04:46,491 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-12-14 05:04:46,491 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2022-12-14 05:04:46,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2022-12-14 05:04:46,491 INFO L130 BoogieDeclarations]: Found specification of procedure close_candev [2022-12-14 05:04:46,491 INFO L138 BoogieDeclarations]: Found implementation of procedure close_candev [2022-12-14 05:04:46,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 05:04:46,492 INFO L130 BoogieDeclarations]: Found specification of procedure free_candev [2022-12-14 05:04:46,492 INFO L138 BoogieDeclarations]: Found implementation of procedure free_candev [2022-12-14 05:04:46,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-12-14 05:04:46,492 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-12-14 05:04:46,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-12-14 05:04:46,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 05:04:46,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 05:04:46,823 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 05:04:46,825 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 05:04:46,963 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-12-14 05:04:47,531 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2022-12-14 05:04:49,146 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 05:04:49,548 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 05:04:49,548 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 05:04:49,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:04:49 BoogieIcfgContainer [2022-12-14 05:04:49,553 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 05:04:49,555 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 05:04:49,555 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 05:04:49,557 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 05:04:49,557 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 05:04:44" (1/3) ... [2022-12-14 05:04:49,558 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55333a85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:04:49, skipping insertion in model container [2022-12-14 05:04:49,558 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:04:46" (2/3) ... [2022-12-14 05:04:49,558 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55333a85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:04:49, skipping insertion in model container [2022-12-14 05:04:49,558 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:04:49" (3/3) ... [2022-12-14 05:04:49,559 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--ems_usb.ko-entry_point.cil.out.i [2022-12-14 05:04:49,574 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 05:04:49,574 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 05:04:49,616 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 05:04:49,620 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@31383df8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 05:04:49,620 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 05:04:49,625 INFO L276 IsEmpty]: Start isEmpty. Operand has 484 states, 301 states have (on average 1.372093023255814) internal successors, (413), 325 states have internal predecessors, (413), 135 states have call successors, (135), 48 states have call predecessors, (135), 46 states have return successors, (129), 124 states have call predecessors, (129), 129 states have call successors, (129) [2022-12-14 05:04:49,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-12-14 05:04:49,632 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:04:49,632 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:04:49,632 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:04:49,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:04:49,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1321419753, now seen corresponding path program 1 times [2022-12-14 05:04:49,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:04:49,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227653994] [2022-12-14 05:04:49,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:04:49,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:04:49,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:04:49,972 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 05:04:49,973 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:04:49,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227653994] [2022-12-14 05:04:49,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227653994] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:04:49,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:04:49,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:04:49,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945654614] [2022-12-14 05:04:49,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:04:49,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:04:49,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:04:50,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:04:50,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:04:50,004 INFO L87 Difference]: Start difference. First operand has 484 states, 301 states have (on average 1.372093023255814) internal successors, (413), 325 states have internal predecessors, (413), 135 states have call successors, (135), 48 states have call predecessors, (135), 46 states have return successors, (129), 124 states have call predecessors, (129), 129 states have call successors, (129) Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 05:04:53,325 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:04:55,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:04:55,019 INFO L93 Difference]: Finished difference Result 1418 states and 1985 transitions. [2022-12-14 05:04:55,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:04:55,022 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2022-12-14 05:04:55,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:04:55,039 INFO L225 Difference]: With dead ends: 1418 [2022-12-14 05:04:55,039 INFO L226 Difference]: Without dead ends: 919 [2022-12-14 05:04:55,045 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:04:55,048 INFO L413 NwaCegarLoop]: 694 mSDtfsCounter, 629 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 632 SdHoareTripleChecker+Valid, 1257 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-12-14 05:04:55,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [632 Valid, 1257 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 204 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-12-14 05:04:55,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2022-12-14 05:04:55,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 919. [2022-12-14 05:04:55,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 919 states, 580 states have (on average 1.3413793103448275) internal successors, (778), 608 states have internal predecessors, (778), 248 states have call successors, (248), 91 states have call predecessors, (248), 90 states have return successors, (246), 233 states have call predecessors, (246), 243 states have call successors, (246) [2022-12-14 05:04:55,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 919 states to 919 states and 1272 transitions. [2022-12-14 05:04:55,161 INFO L78 Accepts]: Start accepts. Automaton has 919 states and 1272 transitions. Word has length 23 [2022-12-14 05:04:55,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:04:55,161 INFO L495 AbstractCegarLoop]: Abstraction has 919 states and 1272 transitions. [2022-12-14 05:04:55,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 05:04:55,161 INFO L276 IsEmpty]: Start isEmpty. Operand 919 states and 1272 transitions. [2022-12-14 05:04:55,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-12-14 05:04:55,164 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:04:55,164 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:04:55,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 05:04:55,164 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:04:55,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:04:55,165 INFO L85 PathProgramCache]: Analyzing trace with hash -271936350, now seen corresponding path program 1 times [2022-12-14 05:04:55,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:04:55,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298146570] [2022-12-14 05:04:55,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:04:55,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:04:55,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:04:55,466 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-12-14 05:04:55,467 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:04:55,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298146570] [2022-12-14 05:04:55,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298146570] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:04:55,467 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:04:55,467 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:04:55,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590369040] [2022-12-14 05:04:55,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:04:55,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:04:55,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:04:55,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:04:55,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:04:55,470 INFO L87 Difference]: Start difference. First operand 919 states and 1272 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-14 05:04:58,160 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:04:59,547 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:04:59,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:04:59,899 INFO L93 Difference]: Finished difference Result 1621 states and 2230 transitions. [2022-12-14 05:04:59,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:04:59,900 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 32 [2022-12-14 05:04:59,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:04:59,909 INFO L225 Difference]: With dead ends: 1621 [2022-12-14 05:04:59,909 INFO L226 Difference]: Without dead ends: 1618 [2022-12-14 05:04:59,911 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:04:59,912 INFO L413 NwaCegarLoop]: 653 mSDtfsCounter, 471 mSDsluCounter, 549 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 474 SdHoareTripleChecker+Valid, 1202 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-12-14 05:04:59,912 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [474 Valid, 1202 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 201 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-12-14 05:04:59,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1618 states. [2022-12-14 05:05:00,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1618 to 1606. [2022-12-14 05:05:00,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1606 states, 1021 states have (on average 1.3486777668952008) internal successors, (1377), 1075 states have internal predecessors, (1377), 416 states have call successors, (416), 171 states have call predecessors, (416), 168 states have return successors, (420), 385 states have call predecessors, (420), 411 states have call successors, (420) [2022-12-14 05:05:00,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 2213 transitions. [2022-12-14 05:05:00,038 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 2213 transitions. Word has length 32 [2022-12-14 05:05:00,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:05:00,038 INFO L495 AbstractCegarLoop]: Abstraction has 1606 states and 2213 transitions. [2022-12-14 05:05:00,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-14 05:05:00,039 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 2213 transitions. [2022-12-14 05:05:00,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-12-14 05:05:00,040 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:05:00,040 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:05:00,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 05:05:00,041 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:05:00,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:05:00,041 INFO L85 PathProgramCache]: Analyzing trace with hash 159595216, now seen corresponding path program 1 times [2022-12-14 05:05:00,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:05:00,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966329316] [2022-12-14 05:05:00,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:05:00,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:05:00,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:05:00,256 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-12-14 05:05:00,256 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:05:00,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966329316] [2022-12-14 05:05:00,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966329316] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:05:00,257 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:05:00,257 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:05:00,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828727371] [2022-12-14 05:05:00,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:05:00,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:05:00,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:05:00,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:05:00,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:05:00,258 INFO L87 Difference]: Start difference. First operand 1606 states and 2213 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-14 05:05:03,194 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:05:03,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:05:03,977 INFO L93 Difference]: Finished difference Result 1612 states and 2219 transitions. [2022-12-14 05:05:03,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:05:03,977 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 33 [2022-12-14 05:05:03,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:05:03,985 INFO L225 Difference]: With dead ends: 1612 [2022-12-14 05:05:03,985 INFO L226 Difference]: Without dead ends: 1609 [2022-12-14 05:05:03,986 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:05:03,987 INFO L413 NwaCegarLoop]: 552 mSDtfsCounter, 629 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 632 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-12-14 05:05:03,987 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [632 Valid, 556 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 100 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2022-12-14 05:05:03,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1609 states. [2022-12-14 05:05:04,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1609 to 1609. [2022-12-14 05:05:04,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1609 states, 1023 states have (on average 1.3470185728250244) internal successors, (1378), 1077 states have internal predecessors, (1378), 415 states have call successors, (415), 172 states have call predecessors, (415), 170 states have return successors, (423), 385 states have call predecessors, (423), 411 states have call successors, (423) [2022-12-14 05:05:04,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1609 states to 1609 states and 2216 transitions. [2022-12-14 05:05:04,076 INFO L78 Accepts]: Start accepts. Automaton has 1609 states and 2216 transitions. Word has length 33 [2022-12-14 05:05:04,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:05:04,077 INFO L495 AbstractCegarLoop]: Abstraction has 1609 states and 2216 transitions. [2022-12-14 05:05:04,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-14 05:05:04,077 INFO L276 IsEmpty]: Start isEmpty. Operand 1609 states and 2216 transitions. [2022-12-14 05:05:04,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-12-14 05:05:04,078 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:05:04,078 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:05:04,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 05:05:04,078 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:05:04,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:05:04,079 INFO L85 PathProgramCache]: Analyzing trace with hash 652176741, now seen corresponding path program 1 times [2022-12-14 05:05:04,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:05:04,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979896531] [2022-12-14 05:05:04,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:05:04,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:05:04,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:05:04,159 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-12-14 05:05:04,159 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:05:04,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979896531] [2022-12-14 05:05:04,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979896531] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:05:04,159 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:05:04,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:05:04,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831870905] [2022-12-14 05:05:04,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:05:04,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:05:04,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:05:04,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:05:04,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:05:04,161 INFO L87 Difference]: Start difference. First operand 1609 states and 2216 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-14 05:05:06,781 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:05:07,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:05:07,503 INFO L93 Difference]: Finished difference Result 1611 states and 2217 transitions. [2022-12-14 05:05:07,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:05:07,503 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 34 [2022-12-14 05:05:07,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:05:07,507 INFO L225 Difference]: With dead ends: 1611 [2022-12-14 05:05:07,508 INFO L226 Difference]: Without dead ends: 1608 [2022-12-14 05:05:07,508 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:05:07,509 INFO L413 NwaCegarLoop]: 550 mSDtfsCounter, 626 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 629 SdHoareTripleChecker+Valid, 554 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-12-14 05:05:07,509 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [629 Valid, 554 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 100 Invalid, 1 Unknown, 0 Unchecked, 3.3s Time] [2022-12-14 05:05:07,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1608 states. [2022-12-14 05:05:07,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1608 to 1608. [2022-12-14 05:05:07,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1608 states, 1023 states have (on average 1.346041055718475) internal successors, (1377), 1076 states have internal predecessors, (1377), 414 states have call successors, (414), 172 states have call predecessors, (414), 170 states have return successors, (423), 385 states have call predecessors, (423), 411 states have call successors, (423) [2022-12-14 05:05:07,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1608 states to 1608 states and 2214 transitions. [2022-12-14 05:05:07,566 INFO L78 Accepts]: Start accepts. Automaton has 1608 states and 2214 transitions. Word has length 34 [2022-12-14 05:05:07,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:05:07,567 INFO L495 AbstractCegarLoop]: Abstraction has 1608 states and 2214 transitions. [2022-12-14 05:05:07,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-14 05:05:07,567 INFO L276 IsEmpty]: Start isEmpty. Operand 1608 states and 2214 transitions. [2022-12-14 05:05:07,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-12-14 05:05:07,569 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:05:07,569 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:05:07,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 05:05:07,569 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:05:07,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:05:07,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1257660301, now seen corresponding path program 1 times [2022-12-14 05:05:07,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:05:07,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085154551] [2022-12-14 05:05:07,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:05:07,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:05:07,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:05:07,647 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-12-14 05:05:07,648 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:05:07,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085154551] [2022-12-14 05:05:07,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085154551] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:05:07,648 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:05:07,648 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:05:07,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712113176] [2022-12-14 05:05:07,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:05:07,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:05:07,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:05:07,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:05:07,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:05:07,649 INFO L87 Difference]: Start difference. First operand 1608 states and 2214 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-14 05:05:10,676 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:05:11,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:05:11,322 INFO L93 Difference]: Finished difference Result 1610 states and 2215 transitions. [2022-12-14 05:05:11,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:05:11,323 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 35 [2022-12-14 05:05:11,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:05:11,327 INFO L225 Difference]: With dead ends: 1610 [2022-12-14 05:05:11,327 INFO L226 Difference]: Without dead ends: 1607 [2022-12-14 05:05:11,328 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:05:11,328 INFO L413 NwaCegarLoop]: 548 mSDtfsCounter, 623 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 626 SdHoareTripleChecker+Valid, 552 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-12-14 05:05:11,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [626 Valid, 552 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 100 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2022-12-14 05:05:11,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1607 states. [2022-12-14 05:05:11,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1607 to 1607. [2022-12-14 05:05:11,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1607 states, 1023 states have (on average 1.3450635386119256) internal successors, (1376), 1075 states have internal predecessors, (1376), 413 states have call successors, (413), 172 states have call predecessors, (413), 170 states have return successors, (423), 385 states have call predecessors, (423), 411 states have call successors, (423) [2022-12-14 05:05:11,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1607 states to 1607 states and 2212 transitions. [2022-12-14 05:05:11,388 INFO L78 Accepts]: Start accepts. Automaton has 1607 states and 2212 transitions. Word has length 35 [2022-12-14 05:05:11,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:05:11,389 INFO L495 AbstractCegarLoop]: Abstraction has 1607 states and 2212 transitions. [2022-12-14 05:05:11,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-14 05:05:11,389 INFO L276 IsEmpty]: Start isEmpty. Operand 1607 states and 2212 transitions. [2022-12-14 05:05:11,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-12-14 05:05:11,390 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:05:11,390 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:05:11,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 05:05:11,390 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:05:11,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:05:11,390 INFO L85 PathProgramCache]: Analyzing trace with hash -333061592, now seen corresponding path program 1 times [2022-12-14 05:05:11,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:05:11,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287767208] [2022-12-14 05:05:11,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:05:11,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:05:11,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:05:11,478 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-12-14 05:05:11,478 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:05:11,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287767208] [2022-12-14 05:05:11,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287767208] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:05:11,478 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:05:11,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:05:11,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763246955] [2022-12-14 05:05:11,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:05:11,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:05:11,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:05:11,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:05:11,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:05:11,480 INFO L87 Difference]: Start difference. First operand 1607 states and 2212 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-14 05:05:14,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:05:14,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:05:14,609 INFO L93 Difference]: Finished difference Result 1609 states and 2213 transitions. [2022-12-14 05:05:14,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:05:14,609 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 36 [2022-12-14 05:05:14,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:05:14,613 INFO L225 Difference]: With dead ends: 1609 [2022-12-14 05:05:14,613 INFO L226 Difference]: Without dead ends: 1600 [2022-12-14 05:05:14,614 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:05:14,614 INFO L413 NwaCegarLoop]: 547 mSDtfsCounter, 620 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 623 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:05:14,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [623 Valid, 551 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 99 Invalid, 1 Unknown, 0 Unchecked, 3.1s Time] [2022-12-14 05:05:14,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1600 states. [2022-12-14 05:05:14,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1600 to 1600. [2022-12-14 05:05:14,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1600 states, 1017 states have (on average 1.343166175024582) internal successors, (1366), 1068 states have internal predecessors, (1366), 412 states have call successors, (412), 172 states have call predecessors, (412), 170 states have return successors, (423), 385 states have call predecessors, (423), 411 states have call successors, (423) [2022-12-14 05:05:14,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1600 states to 1600 states and 2201 transitions. [2022-12-14 05:05:14,679 INFO L78 Accepts]: Start accepts. Automaton has 1600 states and 2201 transitions. Word has length 36 [2022-12-14 05:05:14,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:05:14,679 INFO L495 AbstractCegarLoop]: Abstraction has 1600 states and 2201 transitions. [2022-12-14 05:05:14,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-14 05:05:14,679 INFO L276 IsEmpty]: Start isEmpty. Operand 1600 states and 2201 transitions. [2022-12-14 05:05:14,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-12-14 05:05:14,681 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:05:14,681 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:05:14,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 05:05:14,682 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:05:14,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:05:14,682 INFO L85 PathProgramCache]: Analyzing trace with hash 626375537, now seen corresponding path program 1 times [2022-12-14 05:05:14,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:05:14,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626563619] [2022-12-14 05:05:14,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:05:14,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:05:14,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:05:14,769 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-12-14 05:05:14,769 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:05:14,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626563619] [2022-12-14 05:05:14,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626563619] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:05:14,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:05:14,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:05:14,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261721695] [2022-12-14 05:05:14,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:05:14,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:05:14,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:05:14,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:05:14,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:05:14,771 INFO L87 Difference]: Start difference. First operand 1600 states and 2201 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-12-14 05:05:18,633 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:05:19,747 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:05:20,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:05:20,658 INFO L93 Difference]: Finished difference Result 3662 states and 4990 transitions. [2022-12-14 05:05:20,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:05:20,658 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 70 [2022-12-14 05:05:20,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:05:20,664 INFO L225 Difference]: With dead ends: 3662 [2022-12-14 05:05:20,664 INFO L226 Difference]: Without dead ends: 2067 [2022-12-14 05:05:20,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:05:20,667 INFO L413 NwaCegarLoop]: 590 mSDtfsCounter, 185 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 1118 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-12-14 05:05:20,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 1118 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 209 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-12-14 05:05:20,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2067 states. [2022-12-14 05:05:20,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2067 to 2054. [2022-12-14 05:05:20,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2054 states, 1311 states have (on average 1.3325705568268498) internal successors, (1747), 1364 states have internal predecessors, (1747), 511 states have call successors, (511), 235 states have call predecessors, (511), 231 states have return successors, (522), 480 states have call predecessors, (522), 510 states have call successors, (522) [2022-12-14 05:05:20,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2054 states to 2054 states and 2780 transitions. [2022-12-14 05:05:20,761 INFO L78 Accepts]: Start accepts. Automaton has 2054 states and 2780 transitions. Word has length 70 [2022-12-14 05:05:20,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:05:20,761 INFO L495 AbstractCegarLoop]: Abstraction has 2054 states and 2780 transitions. [2022-12-14 05:05:20,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-12-14 05:05:20,761 INFO L276 IsEmpty]: Start isEmpty. Operand 2054 states and 2780 transitions. [2022-12-14 05:05:20,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-12-14 05:05:20,763 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:05:20,764 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:05:20,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 05:05:20,764 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:05:20,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:05:20,764 INFO L85 PathProgramCache]: Analyzing trace with hash -991310419, now seen corresponding path program 1 times [2022-12-14 05:05:20,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:05:20,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188376969] [2022-12-14 05:05:20,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:05:20,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:05:20,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:05:20,891 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 05:05:20,891 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:05:20,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188376969] [2022-12-14 05:05:20,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188376969] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:05:20,892 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:05:20,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:05:20,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920134125] [2022-12-14 05:05:20,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:05:20,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:05:20,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:05:20,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:05:20,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:05:20,893 INFO L87 Difference]: Start difference. First operand 2054 states and 2780 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2022-12-14 05:05:24,615 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:05:27,825 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:05:27,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:05:27,829 INFO L93 Difference]: Finished difference Result 4566 states and 6162 transitions. [2022-12-14 05:05:27,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:05:27,835 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 82 [2022-12-14 05:05:27,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:05:27,842 INFO L225 Difference]: With dead ends: 4566 [2022-12-14 05:05:27,842 INFO L226 Difference]: Without dead ends: 2523 [2022-12-14 05:05:27,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:05:27,845 INFO L413 NwaCegarLoop]: 672 mSDtfsCounter, 166 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 1203 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-12-14 05:05:27,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 1203 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 232 Invalid, 2 Unknown, 0 Unchecked, 6.8s Time] [2022-12-14 05:05:27,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2523 states. [2022-12-14 05:05:27,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2523 to 2508. [2022-12-14 05:05:27,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2508 states, 1617 states have (on average 1.329004329004329) internal successors, (2149), 1674 states have internal predecessors, (2149), 603 states have call successors, (603), 293 states have call predecessors, (603), 287 states have return successors, (614), 566 states have call predecessors, (614), 602 states have call successors, (614) [2022-12-14 05:05:27,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2508 states to 2508 states and 3366 transitions. [2022-12-14 05:05:27,953 INFO L78 Accepts]: Start accepts. Automaton has 2508 states and 3366 transitions. Word has length 82 [2022-12-14 05:05:27,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:05:27,953 INFO L495 AbstractCegarLoop]: Abstraction has 2508 states and 3366 transitions. [2022-12-14 05:05:27,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2022-12-14 05:05:27,954 INFO L276 IsEmpty]: Start isEmpty. Operand 2508 states and 3366 transitions. [2022-12-14 05:05:27,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-12-14 05:05:27,956 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:05:27,956 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:05:27,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 05:05:27,956 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:05:27,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:05:27,956 INFO L85 PathProgramCache]: Analyzing trace with hash -664776219, now seen corresponding path program 1 times [2022-12-14 05:05:27,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:05:27,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265305700] [2022-12-14 05:05:27,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:05:27,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:05:27,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:05:28,068 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-12-14 05:05:28,068 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:05:28,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265305700] [2022-12-14 05:05:28,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265305700] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:05:28,068 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:05:28,069 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:05:28,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737709412] [2022-12-14 05:05:28,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:05:28,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:05:28,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:05:28,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:05:28,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:05:28,070 INFO L87 Difference]: Start difference. First operand 2508 states and 3366 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 05:05:31,312 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:05:33,267 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:05:33,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:05:33,296 INFO L93 Difference]: Finished difference Result 6556 states and 8856 transitions. [2022-12-14 05:05:33,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:05:33,297 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 87 [2022-12-14 05:05:33,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:05:33,307 INFO L225 Difference]: With dead ends: 6556 [2022-12-14 05:05:33,307 INFO L226 Difference]: Without dead ends: 4059 [2022-12-14 05:05:33,312 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:05:33,312 INFO L413 NwaCegarLoop]: 823 mSDtfsCounter, 539 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 542 SdHoareTripleChecker+Valid, 1354 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-12-14 05:05:33,312 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [542 Valid, 1354 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 244 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-12-14 05:05:33,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4059 states. [2022-12-14 05:05:33,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4059 to 4048. [2022-12-14 05:05:33,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4048 states, 2648 states have (on average 1.3417673716012084) internal successors, (3553), 2753 states have internal predecessors, (3553), 953 states have call successors, (953), 454 states have call predecessors, (953), 446 states have return successors, (976), 892 states have call predecessors, (976), 952 states have call successors, (976) [2022-12-14 05:05:33,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4048 states to 4048 states and 5482 transitions. [2022-12-14 05:05:33,487 INFO L78 Accepts]: Start accepts. Automaton has 4048 states and 5482 transitions. Word has length 87 [2022-12-14 05:05:33,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:05:33,487 INFO L495 AbstractCegarLoop]: Abstraction has 4048 states and 5482 transitions. [2022-12-14 05:05:33,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 05:05:33,487 INFO L276 IsEmpty]: Start isEmpty. Operand 4048 states and 5482 transitions. [2022-12-14 05:05:33,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-12-14 05:05:33,490 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:05:33,490 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 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] [2022-12-14 05:05:33,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 05:05:33,491 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:05:33,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:05:33,491 INFO L85 PathProgramCache]: Analyzing trace with hash -851050724, now seen corresponding path program 1 times [2022-12-14 05:05:33,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:05:33,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611699548] [2022-12-14 05:05:33,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:05:33,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:05:33,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:05:33,891 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 17 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 05:05:33,891 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:05:33,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611699548] [2022-12-14 05:05:33,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611699548] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:05:33,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2039809975] [2022-12-14 05:05:33,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:05:33,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:05:33,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c40297-6ce7-40e5-a86b-9dcdd8bef1a5/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:05:33,893 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c40297-6ce7-40e5-a86b-9dcdd8bef1a5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:05:33,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c40297-6ce7-40e5-a86b-9dcdd8bef1a5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 05:05:34,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:05:34,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 1393 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 05:05:34,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:05:34,362 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-12-14 05:05:34,362 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 05:05:34,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2039809975] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:05:34,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 05:05:34,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2022-12-14 05:05:34,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305416685] [2022-12-14 05:05:34,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:05:34,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 05:05:34,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:05:34,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 05:05:34,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-12-14 05:05:34,364 INFO L87 Difference]: Start difference. First operand 4048 states and 5482 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-12-14 05:05:39,350 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:05:42,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:05:42,783 INFO L93 Difference]: Finished difference Result 7868 states and 10961 transitions. [2022-12-14 05:05:42,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 05:05:42,783 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 91 [2022-12-14 05:05:42,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:05:42,797 INFO L225 Difference]: With dead ends: 7868 [2022-12-14 05:05:42,797 INFO L226 Difference]: Without dead ends: 5529 [2022-12-14 05:05:42,801 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-12-14 05:05:42,802 INFO L413 NwaCegarLoop]: 764 mSDtfsCounter, 308 mSDsluCounter, 1175 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 90 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 1939 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:05:42,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [309 Valid, 1939 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 324 Invalid, 1 Unknown, 0 Unchecked, 8.1s Time] [2022-12-14 05:05:42,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5529 states. [2022-12-14 05:05:43,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5529 to 4064. [2022-12-14 05:05:43,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4064 states, 2664 states have (on average 1.3397147147147148) internal successors, (3569), 2769 states have internal predecessors, (3569), 953 states have call successors, (953), 454 states have call predecessors, (953), 446 states have return successors, (976), 892 states have call predecessors, (976), 952 states have call successors, (976) [2022-12-14 05:05:43,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4064 states to 4064 states and 5498 transitions. [2022-12-14 05:05:43,023 INFO L78 Accepts]: Start accepts. Automaton has 4064 states and 5498 transitions. Word has length 91 [2022-12-14 05:05:43,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:05:43,024 INFO L495 AbstractCegarLoop]: Abstraction has 4064 states and 5498 transitions. [2022-12-14 05:05:43,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-12-14 05:05:43,025 INFO L276 IsEmpty]: Start isEmpty. Operand 4064 states and 5498 transitions. [2022-12-14 05:05:43,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-12-14 05:05:43,030 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:05:43,030 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 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] [2022-12-14 05:05:43,039 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c40297-6ce7-40e5-a86b-9dcdd8bef1a5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 05:05:43,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c40297-6ce7-40e5-a86b-9dcdd8bef1a5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:05:43,232 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:05:43,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:05:43,232 INFO L85 PathProgramCache]: Analyzing trace with hash -1448030669, now seen corresponding path program 1 times [2022-12-14 05:05:43,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:05:43,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917308882] [2022-12-14 05:05:43,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:05:43,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:05:43,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:05:43,485 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-12-14 05:05:43,485 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:05:43,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917308882] [2022-12-14 05:05:43,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917308882] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:05:43,486 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:05:43,486 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:05:43,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996978413] [2022-12-14 05:05:43,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:05:43,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:05:43,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:05:43,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:05:43,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:05:43,488 INFO L87 Difference]: Start difference. First operand 4064 states and 5498 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 05:05:46,798 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:05:48,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:05:48,126 INFO L93 Difference]: Finished difference Result 6437 states and 8720 transitions. [2022-12-14 05:05:48,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:05:48,126 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (15), 2 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 99 [2022-12-14 05:05:48,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:05:48,139 INFO L225 Difference]: With dead ends: 6437 [2022-12-14 05:05:48,139 INFO L226 Difference]: Without dead ends: 4076 [2022-12-14 05:05:48,144 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:05:48,144 INFO L413 NwaCegarLoop]: 543 mSDtfsCounter, 0 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1083 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-12-14 05:05:48,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1083 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 196 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-12-14 05:05:48,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4076 states. [2022-12-14 05:05:48,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4076 to 4076. [2022-12-14 05:05:48,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4076 states, 2676 states have (on average 1.3381913303437967) internal successors, (3581), 2781 states have internal predecessors, (3581), 953 states have call successors, (953), 454 states have call predecessors, (953), 446 states have return successors, (976), 892 states have call predecessors, (976), 952 states have call successors, (976) [2022-12-14 05:05:48,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4076 states to 4076 states and 5510 transitions. [2022-12-14 05:05:48,323 INFO L78 Accepts]: Start accepts. Automaton has 4076 states and 5510 transitions. Word has length 99 [2022-12-14 05:05:48,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:05:48,324 INFO L495 AbstractCegarLoop]: Abstraction has 4076 states and 5510 transitions. [2022-12-14 05:05:48,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 05:05:48,324 INFO L276 IsEmpty]: Start isEmpty. Operand 4076 states and 5510 transitions. [2022-12-14 05:05:48,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-12-14 05:05:48,328 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:05:48,328 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 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] [2022-12-14 05:05:48,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 05:05:48,328 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:05:48,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:05:48,328 INFO L85 PathProgramCache]: Analyzing trace with hash -143025654, now seen corresponding path program 1 times [2022-12-14 05:05:48,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:05:48,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442230096] [2022-12-14 05:05:48,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:05:48,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:05:48,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:05:48,545 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-12-14 05:05:48,545 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:05:48,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442230096] [2022-12-14 05:05:48,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442230096] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:05:48,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1870302889] [2022-12-14 05:05:48,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:05:48,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:05:48,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c40297-6ce7-40e5-a86b-9dcdd8bef1a5/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:05:48,547 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c40297-6ce7-40e5-a86b-9dcdd8bef1a5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:05:48,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c40297-6ce7-40e5-a86b-9dcdd8bef1a5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 05:05:48,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:05:49,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 1783 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 05:05:49,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:05:49,023 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-12-14 05:05:49,023 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 05:05:49,096 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-12-14 05:05:49,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1870302889] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 05:05:49,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1226107011] [2022-12-14 05:05:49,114 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-12-14 05:05:49,114 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 05:05:49,117 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 05:05:49,121 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 05:05:49,121 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 05:05:49,913 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 197 treesize of output 175 [2022-12-14 05:05:50,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:05:50,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:05:50,522 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2022-12-14 05:05:50,921 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 36 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 73 [2022-12-14 05:05:50,965 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 05:05:51,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:05:51,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:05:51,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:05:51,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:05:51,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:05:51,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:05:51,699 INFO L217 Elim1Store]: Index analysis took 105 ms [2022-12-14 05:05:51,867 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 21 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 53 [2022-12-14 05:05:52,013 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-12-14 05:05:52,085 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 9 [2022-12-14 05:05:52,127 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 05:05:52,996 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 509 treesize of output 401 [2022-12-14 05:05:53,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:05:53,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:05:53,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:05:53,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:05:53,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:05:53,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:05:53,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:05:53,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:05:53,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:05:53,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:05:53,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:05:53,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:05:53,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:05:53,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:05:53,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:05:53,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:05:53,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:05:53,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:05:53,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:05:53,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:05:53,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:05:53,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:05:53,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:05:53,071 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 24 select indices, 24 select index equivalence classes, 276 disjoint index pairs (out of 276 index pairs), introduced 24 new quantified variables, introduced 0 case distinctions, treesize of input 167 treesize of output 73 [2022-12-14 05:05:53,127 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 55 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 34 [2022-12-14 05:05:54,074 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 509 treesize of output 401 [2022-12-14 05:05:54,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:05:54,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:05:54,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:05:54,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:05:54,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:05:54,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:05:54,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:05:54,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:05:54,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:05:54,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:05:54,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:05:54,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:05:54,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:05:54,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:05:54,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:05:54,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:05:54,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:05:54,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:05:54,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:05:54,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:05:54,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:05:54,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:05:54,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:05:54,150 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 24 select indices, 24 select index equivalence classes, 276 disjoint index pairs (out of 276 index pairs), introduced 24 new quantified variables, introduced 0 case distinctions, treesize of input 167 treesize of output 73 [2022-12-14 05:05:54,202 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 55 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 34 [2022-12-14 05:06:18,480 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_zalloc with input of size 221 for LOIs [2022-12-14 05:06:18,650 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_malloc with input of size 129 for LOIs [2022-12-14 05:06:18,680 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 05:06:24,347 WARN L233 SmtUtils]: Spent 5.25s on a formula simplification that was a NOOP. DAG size: 1010 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:06:52,467 WARN L233 SmtUtils]: Spent 17.66s on a formula simplification. DAG size of input: 928 DAG size of output: 754 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:07:10,994 WARN L233 SmtUtils]: Spent 5.96s on a formula simplification. DAG size of input: 784 DAG size of output: 745 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:07:19,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1226107011] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:07:19,813 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 05:07:19,813 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [4, 4, 4] total 36 [2022-12-14 05:07:19,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115042514] [2022-12-14 05:07:19,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:07:19,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-12-14 05:07:19,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:07:19,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-12-14 05:07:19,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=1135, Unknown=0, NotChecked=0, Total=1260 [2022-12-14 05:07:19,815 INFO L87 Difference]: Start difference. First operand 4076 states and 5510 transitions. Second operand has 31 states, 26 states have (on average 1.9230769230769231) internal successors, (50), 23 states have internal predecessors, (50), 6 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2022-12-14 05:07:34,778 WARN L233 SmtUtils]: Spent 10.92s on a formula simplification. DAG size of input: 1043 DAG size of output: 1019 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:07:47,272 WARN L233 SmtUtils]: Spent 12.06s on a formula simplification. DAG size of input: 1051 DAG size of output: 1027 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:08:00,702 WARN L233 SmtUtils]: Spent 13.00s on a formula simplification. DAG size of input: 1057 DAG size of output: 1033 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:08:07,016 WARN L233 SmtUtils]: Spent 5.74s on a formula simplification that was a NOOP. DAG size: 1014 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:08:12,767 WARN L233 SmtUtils]: Spent 5.33s on a formula simplification that was a NOOP. DAG size: 1018 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:08:18,637 WARN L233 SmtUtils]: Spent 5.21s on a formula simplification that was a NOOP. DAG size: 1023 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:09:20,530 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:09:29,800 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:10:01,879 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:10:06,554 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:10:08,567 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:10:10,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:10:10,406 INFO L93 Difference]: Finished difference Result 8531 states and 11581 transitions. [2022-12-14 05:10:10,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-12-14 05:10:10,407 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 26 states have (on average 1.9230769230769231) internal successors, (50), 23 states have internal predecessors, (50), 6 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) Word has length 100 [2022-12-14 05:10:10,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:10:10,417 INFO L225 Difference]: With dead ends: 8531 [2022-12-14 05:10:10,417 INFO L226 Difference]: Without dead ends: 4452 [2022-12-14 05:10:10,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 265 SyntacticMatches, 3 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1096 ImplicationChecksByTransitivity, 146.8s TimeCoverageRelationStatistics Valid=412, Invalid=3620, Unknown=0, NotChecked=0, Total=4032 [2022-12-14 05:10:10,427 INFO L413 NwaCegarLoop]: 589 mSDtfsCounter, 331 mSDsluCounter, 6527 mSDsCounter, 0 mSdLazyCounter, 4303 mSolverCounterSat, 112 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 82.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 7116 SdHoareTripleChecker+Invalid, 4418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 4303 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 84.3s IncrementalHoareTripleChecker+Time [2022-12-14 05:10:10,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [335 Valid, 7116 Invalid, 4418 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [112 Valid, 4303 Invalid, 3 Unknown, 0 Unchecked, 84.3s Time] [2022-12-14 05:10:10,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4452 states. [2022-12-14 05:10:10,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4452 to 4310. [2022-12-14 05:10:10,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4310 states, 2890 states have (on average 1.340484429065744) internal successors, (3874), 2998 states have internal predecessors, (3874), 963 states have call successors, (963), 460 states have call predecessors, (963), 456 states have return successors, (995), 903 states have call predecessors, (995), 962 states have call successors, (995) [2022-12-14 05:10:10,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4310 states to 4310 states and 5832 transitions. [2022-12-14 05:10:10,756 INFO L78 Accepts]: Start accepts. Automaton has 4310 states and 5832 transitions. Word has length 100 [2022-12-14 05:10:10,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:10:10,756 INFO L495 AbstractCegarLoop]: Abstraction has 4310 states and 5832 transitions. [2022-12-14 05:10:10,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 26 states have (on average 1.9230769230769231) internal successors, (50), 23 states have internal predecessors, (50), 6 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2022-12-14 05:10:10,756 INFO L276 IsEmpty]: Start isEmpty. Operand 4310 states and 5832 transitions. [2022-12-14 05:10:10,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-12-14 05:10:10,760 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:10:10,760 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 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] [2022-12-14 05:10:10,767 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c40297-6ce7-40e5-a86b-9dcdd8bef1a5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 05:10:10,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c40297-6ce7-40e5-a86b-9dcdd8bef1a5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:10:10,961 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:10:10,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:10:10,961 INFO L85 PathProgramCache]: Analyzing trace with hash 1897727701, now seen corresponding path program 1 times [2022-12-14 05:10:10,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:10:10,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940964169] [2022-12-14 05:10:10,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:10:10,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:10:11,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:10:11,205 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-12-14 05:10:11,205 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:10:11,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940964169] [2022-12-14 05:10:11,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940964169] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:10:11,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1590307980] [2022-12-14 05:10:11,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:10:11,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:10:11,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c40297-6ce7-40e5-a86b-9dcdd8bef1a5/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:10:11,206 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c40297-6ce7-40e5-a86b-9dcdd8bef1a5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:10:11,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c40297-6ce7-40e5-a86b-9dcdd8bef1a5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 05:10:11,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:10:11,683 INFO L263 TraceCheckSpWp]: Trace formula consists of 1824 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 05:10:11,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:10:11,695 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-12-14 05:10:11,696 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 05:10:11,735 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-12-14 05:10:11,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1590307980] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 05:10:11,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [528025172] [2022-12-14 05:10:11,737 INFO L159 IcfgInterpreter]: Started Sifa with 75 locations of interest [2022-12-14 05:10:11,737 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 05:10:11,738 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 05:10:11,738 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 05:10:11,738 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 05:10:12,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:12,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:12,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:12,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:12,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:12,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:12,585 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 21 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 53 [2022-12-14 05:10:12,676 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-12-14 05:10:12,729 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 9 [2022-12-14 05:10:12,761 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 05:10:13,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:13,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:13,281 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2022-12-14 05:10:13,516 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 36 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 73 [2022-12-14 05:10:13,549 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 05:10:13,640 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 197 treesize of output 175 [2022-12-14 05:10:14,091 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-12-14 05:10:14,095 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-12-14 05:10:14,101 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 05:10:14,699 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 509 treesize of output 401 [2022-12-14 05:10:14,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:14,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:14,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:14,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:14,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:14,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:14,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:14,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:14,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:14,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:14,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:14,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:14,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:14,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:14,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:14,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:14,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:14,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:14,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:14,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:14,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:14,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:14,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:14,769 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 24 select indices, 24 select index equivalence classes, 276 disjoint index pairs (out of 276 index pairs), introduced 24 new quantified variables, introduced 0 case distinctions, treesize of input 167 treesize of output 73 [2022-12-14 05:10:14,819 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 55 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 34 [2022-12-14 05:10:15,785 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 509 treesize of output 401 [2022-12-14 05:10:15,815 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 55 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 34 [2022-12-14 05:10:15,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:15,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:15,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:15,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:15,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:15,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:15,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:15,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:15,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:15,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:15,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:15,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:15,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:15,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:15,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:15,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:15,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:15,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:15,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:15,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:15,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:15,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:15,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:15,879 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 24 select indices, 24 select index equivalence classes, 276 disjoint index pairs (out of 276 index pairs), introduced 24 new quantified variables, introduced 0 case distinctions, treesize of input 167 treesize of output 73 [2022-12-14 05:10:27,918 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_zalloc with input of size 223 for LOIs [2022-12-14 05:10:28,178 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 05:10:28,206 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-12-14 05:10:28,219 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-12-14 05:10:29,485 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 251 for LOIs [2022-12-14 05:10:29,663 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_malloc with input of size 123 for LOIs [2022-12-14 05:10:29,690 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 05:10:36,435 WARN L233 SmtUtils]: Spent 6.29s on a formula simplification that was a NOOP. DAG size: 1010 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:10:58,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [528025172] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:10:58,841 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 05:10:58,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [4, 4, 4] total 40 [2022-12-14 05:10:58,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156169039] [2022-12-14 05:10:58,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:10:58,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-12-14 05:10:58,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:10:58,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-12-14 05:10:58,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=1404, Unknown=0, NotChecked=0, Total=1560 [2022-12-14 05:10:58,843 INFO L87 Difference]: Start difference. First operand 4310 states and 5832 transitions. Second operand has 35 states, 28 states have (on average 1.8928571428571428) internal successors, (53), 25 states have internal predecessors, (53), 7 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (15), 7 states have call predecessors, (15), 7 states have call successors, (15) [2022-12-14 05:11:17,058 WARN L233 SmtUtils]: Spent 12.49s on a formula simplification. DAG size of input: 1025 DAG size of output: 1015 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:11:29,542 WARN L233 SmtUtils]: Spent 12.04s on a formula simplification. DAG size of input: 1033 DAG size of output: 1023 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:11:43,186 WARN L233 SmtUtils]: Spent 13.15s on a formula simplification. DAG size of input: 1060 DAG size of output: 1040 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:11:56,244 WARN L233 SmtUtils]: Spent 12.57s on a formula simplification. DAG size of input: 1061 DAG size of output: 1049 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:12:10,327 WARN L233 SmtUtils]: Spent 13.65s on a formula simplification. DAG size of input: 1073 DAG size of output: 1043 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:12:23,961 WARN L233 SmtUtils]: Spent 13.16s on a formula simplification. DAG size of input: 1041 DAG size of output: 1018 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:12:37,305 WARN L233 SmtUtils]: Spent 12.92s on a formula simplification. DAG size of input: 1077 DAG size of output: 1047 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:12:49,269 WARN L233 SmtUtils]: Spent 11.54s on a formula simplification. DAG size of input: 1030 DAG size of output: 1021 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:13:02,944 WARN L233 SmtUtils]: Spent 13.14s on a formula simplification. DAG size of input: 1066 DAG size of output: 1056 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:13:16,760 WARN L233 SmtUtils]: Spent 13.21s on a formula simplification. DAG size of input: 1093 DAG size of output: 1064 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:13:30,317 WARN L233 SmtUtils]: Spent 12.99s on a formula simplification. DAG size of input: 1048 DAG size of output: 1025 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:14:47,107 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:14:56,364 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:15:13,003 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:15:14,203 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:15:20,020 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:15:23,121 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:15:27,147 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:15:28,301 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:15:30,317 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:15:32,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:15:32,205 INFO L93 Difference]: Finished difference Result 8796 states and 11936 transitions. [2022-12-14 05:15:32,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-12-14 05:15:32,206 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 28 states have (on average 1.8928571428571428) internal successors, (53), 25 states have internal predecessors, (53), 7 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (15), 7 states have call predecessors, (15), 7 states have call successors, (15) Word has length 104 [2022-12-14 05:15:32,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:15:32,215 INFO L225 Difference]: With dead ends: 8796 [2022-12-14 05:15:32,215 INFO L226 Difference]: Without dead ends: 4717 [2022-12-14 05:15:32,221 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1594 ImplicationChecksByTransitivity, 195.3s TimeCoverageRelationStatistics Valid=475, Invalid=5075, Unknown=0, NotChecked=0, Total=5550 [2022-12-14 05:15:32,221 INFO L413 NwaCegarLoop]: 599 mSDtfsCounter, 292 mSDsluCounter, 10194 mSDsCounter, 0 mSdLazyCounter, 6239 mSolverCounterSat, 81 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 104.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 10793 SdHoareTripleChecker+Invalid, 6323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 6239 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 106.4s IncrementalHoareTripleChecker+Time [2022-12-14 05:15:32,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 10793 Invalid, 6323 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [81 Valid, 6239 Invalid, 3 Unknown, 0 Unchecked, 106.4s Time] [2022-12-14 05:15:32,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4717 states. [2022-12-14 05:15:32,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4717 to 4305. [2022-12-14 05:15:32,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4305 states, 2887 states have (on average 1.340838240387946) internal successors, (3871), 2992 states have internal predecessors, (3871), 962 states have call successors, (962), 463 states have call predecessors, (962), 455 states have return successors, (988), 901 states have call predecessors, (988), 961 states have call successors, (988) [2022-12-14 05:15:32,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4305 states to 4305 states and 5821 transitions. [2022-12-14 05:15:32,561 INFO L78 Accepts]: Start accepts. Automaton has 4305 states and 5821 transitions. Word has length 104 [2022-12-14 05:15:32,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:15:32,561 INFO L495 AbstractCegarLoop]: Abstraction has 4305 states and 5821 transitions. [2022-12-14 05:15:32,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 28 states have (on average 1.8928571428571428) internal successors, (53), 25 states have internal predecessors, (53), 7 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (15), 7 states have call predecessors, (15), 7 states have call successors, (15) [2022-12-14 05:15:32,561 INFO L276 IsEmpty]: Start isEmpty. Operand 4305 states and 5821 transitions. [2022-12-14 05:15:32,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-12-14 05:15:32,565 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:15:32,565 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 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] [2022-12-14 05:15:32,573 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c40297-6ce7-40e5-a86b-9dcdd8bef1a5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 05:15:32,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c40297-6ce7-40e5-a86b-9dcdd8bef1a5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-12-14 05:15:32,765 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:15:32,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:15:32,766 INFO L85 PathProgramCache]: Analyzing trace with hash -710229276, now seen corresponding path program 1 times [2022-12-14 05:15:32,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:15:32,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293816435] [2022-12-14 05:15:32,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:15:32,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:15:32,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:15:33,118 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 17 proven. 8 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-12-14 05:15:33,118 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:15:33,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293816435] [2022-12-14 05:15:33,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293816435] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:15:33,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1784215560] [2022-12-14 05:15:33,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:15:33,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:15:33,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c40297-6ce7-40e5-a86b-9dcdd8bef1a5/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:15:33,120 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c40297-6ce7-40e5-a86b-9dcdd8bef1a5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:15:33,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c40297-6ce7-40e5-a86b-9dcdd8bef1a5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 05:15:33,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:15:33,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 1415 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-14 05:15:33,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:15:33,633 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 29 proven. 8 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 05:15:33,633 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 05:15:33,718 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-12-14 05:15:33,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1784215560] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-14 05:15:33,718 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-14 05:15:33,718 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7, 6] total 11 [2022-12-14 05:15:33,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822486154] [2022-12-14 05:15:33,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:15:33,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 05:15:33,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:15:33,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 05:15:33,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2022-12-14 05:15:33,719 INFO L87 Difference]: Start difference. First operand 4305 states and 5821 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-12-14 05:15:36,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:15:40,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:15:40,723 INFO L93 Difference]: Finished difference Result 10102 states and 13599 transitions. [2022-12-14 05:15:40,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 05:15:40,723 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 100 [2022-12-14 05:15:40,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:15:40,734 INFO L225 Difference]: With dead ends: 10102 [2022-12-14 05:15:40,734 INFO L226 Difference]: Without dead ends: 6039 [2022-12-14 05:15:40,739 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=78, Unknown=0, NotChecked=0, Total=132 [2022-12-14 05:15:40,739 INFO L413 NwaCegarLoop]: 623 mSDtfsCounter, 1236 mSDsluCounter, 745 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 406 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1284 SdHoareTripleChecker+Valid, 1368 SdHoareTripleChecker+Invalid, 842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 406 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-12-14 05:15:40,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1284 Valid, 1368 Invalid, 842 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [406 Valid, 435 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2022-12-14 05:15:40,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6039 states. [2022-12-14 05:15:41,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6039 to 5755. [2022-12-14 05:15:41,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5755 states, 3827 states have (on average 1.3394303632087796) internal successors, (5126), 3974 states have internal predecessors, (5126), 1246 states have call successors, (1246), 693 states have call predecessors, (1246), 681 states have return successors, (1284), 1163 states have call predecessors, (1284), 1245 states have call successors, (1284) [2022-12-14 05:15:41,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5755 states to 5755 states and 7656 transitions. [2022-12-14 05:15:41,162 INFO L78 Accepts]: Start accepts. Automaton has 5755 states and 7656 transitions. Word has length 100 [2022-12-14 05:15:41,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:15:41,163 INFO L495 AbstractCegarLoop]: Abstraction has 5755 states and 7656 transitions. [2022-12-14 05:15:41,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-12-14 05:15:41,163 INFO L276 IsEmpty]: Start isEmpty. Operand 5755 states and 7656 transitions. [2022-12-14 05:15:41,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-12-14 05:15:41,166 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:15:41,166 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 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] [2022-12-14 05:15:41,174 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c40297-6ce7-40e5-a86b-9dcdd8bef1a5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 05:15:41,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c40297-6ce7-40e5-a86b-9dcdd8bef1a5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-12-14 05:15:41,367 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:15:41,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:15:41,367 INFO L85 PathProgramCache]: Analyzing trace with hash 2115810772, now seen corresponding path program 1 times [2022-12-14 05:15:41,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:15:41,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469657815] [2022-12-14 05:15:41,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:15:41,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:15:41,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:15:41,516 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-12-14 05:15:41,516 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:15:41,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469657815] [2022-12-14 05:15:41,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469657815] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:15:41,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1632934402] [2022-12-14 05:15:41,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:15:41,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:15:41,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c40297-6ce7-40e5-a86b-9dcdd8bef1a5/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:15:41,517 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c40297-6ce7-40e5-a86b-9dcdd8bef1a5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:15:41,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c40297-6ce7-40e5-a86b-9dcdd8bef1a5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 05:15:41,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:15:41,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 1808 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 05:15:41,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:15:41,952 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-12-14 05:15:41,952 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 05:15:41,982 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-12-14 05:15:41,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1632934402] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 05:15:41,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [438097216] [2022-12-14 05:15:41,984 INFO L159 IcfgInterpreter]: Started Sifa with 75 locations of interest [2022-12-14 05:15:41,984 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 05:15:41,985 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 05:15:41,985 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 05:15:41,985 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 05:15:42,584 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 197 treesize of output 175 [2022-12-14 05:15:43,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:43,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:43,282 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2022-12-14 05:15:43,619 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 36 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 73 [2022-12-14 05:15:43,655 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 05:15:44,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:44,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:44,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:44,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:44,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:44,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:44,421 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 21 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 53 [2022-12-14 05:15:44,560 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-12-14 05:15:44,637 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 9 [2022-12-14 05:15:44,682 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 05:15:45,538 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 509 treesize of output 401 [2022-12-14 05:15:45,579 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 55 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 34 [2022-12-14 05:15:45,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:45,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:45,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:45,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:45,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:45,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:45,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:45,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:45,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:45,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:45,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:45,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:45,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:45,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:45,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:45,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:45,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:45,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:45,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:45,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:45,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:45,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:45,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:45,656 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 24 select indices, 24 select index equivalence classes, 276 disjoint index pairs (out of 276 index pairs), introduced 24 new quantified variables, introduced 0 case distinctions, treesize of input 167 treesize of output 73 [2022-12-14 05:15:46,642 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 509 treesize of output 401 [2022-12-14 05:15:46,674 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 55 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 34 [2022-12-14 05:15:46,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:46,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:46,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:46,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:46,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:46,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:46,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:46,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:46,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:46,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:46,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:46,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:46,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:46,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:46,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:46,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:46,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:46,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:46,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:46,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:46,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:46,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:46,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:46,734 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 24 select indices, 24 select index equivalence classes, 276 disjoint index pairs (out of 276 index pairs), introduced 24 new quantified variables, introduced 0 case distinctions, treesize of input 167 treesize of output 73 [2022-12-14 05:15:57,113 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-12-14 05:15:57,118 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 05:15:59,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:59,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:59,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:59,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:59,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:59,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:59,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:59,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:59,130 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 37 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 73 [2022-12-14 05:15:59,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:59,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:59,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:59,160 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 05:15:59,160 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 62 treesize of output 55 [2022-12-14 05:15:59,202 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:15:59,337 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-12-14 05:15:59,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:59,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:59,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:59,406 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 24 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 61 [2022-12-14 05:15:59,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:59,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:59,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:59,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:59,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:59,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:59,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:59,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:59,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:59,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:59,437 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 21 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 70 [2022-12-14 05:15:59,717 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-12-14 05:15:59,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:59,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:59,762 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:15:59,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:59,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:59,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:59,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:59,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:59,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:59,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:59,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:59,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:59,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:59,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:59,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:59,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:59,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:59,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:59,778 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 39 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 79 [2022-12-14 05:15:59,907 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-12-14 05:15:59,907 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 30 treesize of output 21 [2022-12-14 05:15:59,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:59,926 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 05:15:59,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:59,939 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2022-12-14 05:15:59,951 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2022-12-14 05:15:59,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:15:59,964 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2022-12-14 05:16:00,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:00,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:00,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:00,098 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 05:16:00,098 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 22 [2022-12-14 05:16:00,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:00,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:00,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:00,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:00,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:00,160 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 05:16:00,160 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 55 treesize of output 19 [2022-12-14 05:16:00,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:00,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:00,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:00,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:00,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:00,213 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 05:16:00,213 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 55 treesize of output 19 [2022-12-14 05:16:00,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:00,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:00,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:00,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:00,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:00,433 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 05:16:00,433 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 55 treesize of output 19 [2022-12-14 05:16:00,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:00,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:00,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:00,480 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 05:16:00,480 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 22 [2022-12-14 05:16:00,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:00,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:00,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:00,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:00,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:00,520 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 05:16:00,520 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 55 treesize of output 19 [2022-12-14 05:16:02,717 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 05:16:02,747 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 05:16:02,791 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-14 05:16:02,829 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-12-14 05:16:02,883 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 05:16:05,047 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-14 05:16:05,075 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-12-14 05:16:05,116 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 05:16:05,138 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 05:16:05,196 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 05:16:07,010 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 05:16:07,013 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 05:16:07,015 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 05:16:07,394 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-14 05:16:07,432 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-12-14 05:16:07,492 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-14 05:16:07,533 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-12-14 05:16:09,594 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-14 05:16:09,619 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-12-14 05:16:09,683 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-14 05:16:09,710 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-12-14 05:16:10,684 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-12-14 05:16:10,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:10,729 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 508 treesize of output 501 [2022-12-14 05:16:10,887 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-12-14 05:16:11,177 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-12-14 05:16:11,218 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-12-14 05:16:11,251 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-14 05:16:11,618 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-12-14 05:16:11,707 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-12-14 05:16:11,764 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-14 05:16:12,358 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 05:16:12,377 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 05:16:12,405 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 05:16:24,293 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 05:16:24,323 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 05:16:26,774 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 05:16:26,798 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 05:16:27,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:27,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:27,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:27,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:27,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:27,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:27,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:27,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:27,195 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 37 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 73 [2022-12-14 05:16:27,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:27,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:27,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:27,228 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 05:16:27,228 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 62 treesize of output 55 [2022-12-14 05:16:27,473 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-12-14 05:16:27,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:27,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:27,517 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:16:27,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:27,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:27,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:27,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:27,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:27,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:27,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:27,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:27,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:27,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:27,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:27,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:27,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:27,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:27,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:27,530 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 39 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 79 [2022-12-14 05:16:27,574 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:16:27,710 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-12-14 05:16:27,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:27,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:27,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:27,783 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 24 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 61 [2022-12-14 05:16:27,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:27,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:27,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:27,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:27,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:27,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:27,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:27,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:27,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:27,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:27,817 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 21 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 70 [2022-12-14 05:16:28,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:28,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:28,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:28,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:28,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:28,064 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 05:16:28,064 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 55 treesize of output 19 [2022-12-14 05:16:28,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:28,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:28,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:28,120 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 05:16:28,121 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 22 [2022-12-14 05:16:28,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:28,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:28,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:28,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:28,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:28,170 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 05:16:28,170 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 55 treesize of output 19 [2022-12-14 05:16:28,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:28,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:28,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:28,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:28,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:28,444 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 05:16:28,445 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 55 treesize of output 19 [2022-12-14 05:16:28,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:28,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:28,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:28,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:28,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:28,501 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 05:16:28,501 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 55 treesize of output 19 [2022-12-14 05:16:28,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:28,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:28,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:28,539 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 05:16:28,540 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 22 [2022-12-14 05:16:30,928 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-12-14 05:16:30,962 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-14 05:16:30,998 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 05:16:31,024 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 05:16:31,081 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 05:16:33,426 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-12-14 05:16:33,459 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 05:16:33,485 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 05:16:33,520 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-14 05:16:33,566 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 05:16:34,181 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 05:16:34,203 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-12-14 05:16:34,231 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 05:16:34,577 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-12-14 05:16:34,611 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-12-14 05:16:34,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:34,663 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-12-14 05:16:34,663 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 359 treesize of output 361 [2022-12-14 05:16:35,077 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-12-14 05:16:35,228 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-14 05:16:35,248 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-12-14 05:16:35,820 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 05:16:35,843 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 05:16:35,884 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 05:16:47,555 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 05:16:47,603 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 05:16:49,468 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 05:16:49,496 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 05:16:49,905 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:16:50,035 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-12-14 05:16:50,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:50,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:50,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:50,078 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 05:16:50,078 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 24 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 61 [2022-12-14 05:16:50,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:50,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:50,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:50,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:50,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:50,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:50,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:50,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:50,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:50,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:50,119 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 05:16:50,119 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 21 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 70 treesize of output 70 [2022-12-14 05:16:50,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:50,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:50,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:50,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:50,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:50,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:50,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:50,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:50,292 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 37 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 73 [2022-12-14 05:16:50,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:50,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:50,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:50,329 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 05:16:50,329 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 55 [2022-12-14 05:16:50,616 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-12-14 05:16:50,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:50,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:50,667 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:16:50,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:50,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:50,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:50,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:50,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:50,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:50,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:50,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:50,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:50,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:50,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:50,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:50,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:50,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:50,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:50,681 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 39 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 79 [2022-12-14 05:16:50,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:50,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:50,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:50,941 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 05:16:50,942 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 22 [2022-12-14 05:16:50,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:50,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:50,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:50,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:50,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:50,982 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 05:16:50,982 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 55 treesize of output 19 [2022-12-14 05:16:51,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:51,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:51,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:51,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:51,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:51,018 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 05:16:51,018 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 55 treesize of output 19 [2022-12-14 05:16:51,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:51,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:51,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:51,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:51,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:51,262 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 05:16:51,263 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 55 treesize of output 19 [2022-12-14 05:16:51,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:51,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:51,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:51,316 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 05:16:51,316 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 22 [2022-12-14 05:16:51,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:51,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:51,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:51,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:51,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:51,355 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 05:16:51,355 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 55 treesize of output 19 [2022-12-14 05:16:53,761 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-12-14 05:16:53,795 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-14 05:16:53,826 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 05:16:53,853 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 05:16:53,906 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 05:16:56,054 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-14 05:16:56,081 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 05:16:56,105 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 05:16:56,136 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-12-14 05:16:56,188 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 05:16:56,709 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-12-14 05:16:56,727 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-12-14 05:16:56,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:56,767 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2022-12-14 05:16:57,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:57,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:16:57,130 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 05:16:57,131 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 362 treesize of output 358 [2022-12-14 05:16:57,255 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-12-14 05:16:57,273 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-12-14 05:16:57,458 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-14 05:16:57,486 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-12-14 05:16:57,500 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-12-14 05:16:58,037 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 05:16:58,065 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 05:16:58,087 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 05:17:12,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:17:12,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:17:12,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:17:12,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:17:12,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:17:12,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:17:12,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:17:12,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:17:12,930 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 37 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 73 [2022-12-14 05:17:12,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:17:12,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:17:12,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:17:12,978 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 05:17:12,978 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 55 [2022-12-14 05:17:13,123 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:17:13,278 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-12-14 05:17:13,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:17:13,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:17:13,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:17:13,377 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 24 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 61 [2022-12-14 05:17:13,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:17:13,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:17:13,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:17:13,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:17:13,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:17:13,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:17:13,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:17:13,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:17:13,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:17:13,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:17:13,416 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 21 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 70 [2022-12-14 05:17:13,652 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-12-14 05:17:13,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:17:13,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:17:13,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:17:13,722 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:17:13,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:17:13,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:17:13,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:17:13,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:17:13,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:17:13,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:17:13,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:17:13,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:17:13,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:17:13,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:17:13,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:17:13,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:17:13,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:17:13,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:17:13,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:17:13,740 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 39 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 79 [2022-12-14 05:17:15,236 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 05:17:15,267 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 05:17:15,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:17:15,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:17:15,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:17:15,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:17:15,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:17:15,354 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 05:17:15,355 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 55 treesize of output 19 [2022-12-14 05:17:15,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:17:15,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:17:15,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:17:15,416 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 05:17:15,416 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 22 [2022-12-14 05:17:15,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:17:15,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:17:15,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:17:15,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:17:15,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:17:15,471 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 05:17:15,471 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 55 treesize of output 19 [2022-12-14 05:17:16,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:17:16,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:17:16,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:17:16,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:17:16,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:17:16,980 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 05:17:16,980 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 55 treesize of output 19 [2022-12-14 05:17:17,068 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 05:17:17,097 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 05:17:17,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:17:17,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:17:17,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:17:17,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:17:17,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:17:17,186 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 05:17:17,186 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 55 treesize of output 19 [2022-12-14 05:17:17,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:17:17,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:17:17,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:17:17,233 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 05:17:17,234 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 22 [2022-12-14 05:17:21,311 INFO L197 IcfgInterpreter]: Interpreting procedure free_candev with input of size 143 for LOIs [2022-12-14 05:17:21,341 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_zalloc with input of size 212 for LOIs [2022-12-14 05:17:21,491 INFO L197 IcfgInterpreter]: Interpreting procedure init_usb_anchor with input of size 125 for LOIs [2022-12-14 05:17:21,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:17:21,545 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2022-12-14 05:17:21,574 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-12-14 05:17:21,574 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 30 treesize of output 21 [2022-12-14 05:17:21,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:17:21,601 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 05:17:21,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:17:21,619 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2022-12-14 05:17:21,636 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2022-12-14 05:17:21,644 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_alloc_urb with input of size 129 for LOIs [2022-12-14 05:17:22,004 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_undef_int with input of size 117 for LOIs [2022-12-14 05:17:22,014 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_error with input of size 125 for LOIs [2022-12-14 05:17:22,022 INFO L197 IcfgInterpreter]: Interpreting procedure atomic_set with input of size 132 for LOIs [2022-12-14 05:17:22,035 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_malloc with input of size 122 for LOIs [2022-12-14 05:17:22,076 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-12-14 05:17:22,088 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 05:17:22,508 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 144 for LOIs [2022-12-14 05:17:22,537 INFO L197 IcfgInterpreter]: Interpreting procedure netdev_priv with input of size 128 for LOIs [2022-12-14 05:17:22,547 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 05:17:28,433 WARN L233 SmtUtils]: Spent 5.24s on a formula simplification that was a NOOP. DAG size: 1010 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:18:04,245 WARN L233 SmtUtils]: Spent 14.56s on a formula simplification. DAG size of input: 1056 DAG size of output: 956 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)