./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c37e8da-99f1-4a9b-86fc-bdce8f24e80b/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c37e8da-99f1-4a9b-86fc-bdce8f24e80b/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_1c37e8da-99f1-4a9b-86fc-bdce8f24e80b/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c37e8da-99f1-4a9b-86fc-bdce8f24e80b/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c37e8da-99f1-4a9b-86fc-bdce8f24e80b/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_1c37e8da-99f1-4a9b-86fc-bdce8f24e80b/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 7325716246446e6137919cda7fc42ef01fc613ff512d250d81e88f25c6debe0a --- 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 10:04:25,827 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 10:04:25,828 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 10:04:25,841 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 10:04:25,841 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 10:04:25,842 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 10:04:25,843 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 10:04:25,844 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 10:04:25,845 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 10:04:25,846 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 10:04:25,847 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 10:04:25,847 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 10:04:25,848 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 10:04:25,848 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 10:04:25,849 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 10:04:25,850 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 10:04:25,850 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 10:04:25,851 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 10:04:25,852 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 10:04:25,853 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 10:04:25,854 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 10:04:25,856 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 10:04:25,857 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 10:04:25,858 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 10:04:25,862 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 10:04:25,862 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 10:04:25,863 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 10:04:25,864 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 10:04:25,864 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 10:04:25,865 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 10:04:25,865 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 10:04:25,866 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 10:04:25,867 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 10:04:25,868 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 10:04:25,869 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 10:04:25,869 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 10:04:25,870 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 10:04:25,870 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 10:04:25,870 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 10:04:25,871 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 10:04:25,871 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 10:04:25,872 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c37e8da-99f1-4a9b-86fc-bdce8f24e80b/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 10:04:25,894 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 10:04:25,894 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 10:04:25,895 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 10:04:25,895 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 10:04:25,896 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 10:04:25,896 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 10:04:25,896 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 10:04:25,896 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 10:04:25,896 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 10:04:25,897 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 10:04:25,897 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 10:04:25,897 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 10:04:25,897 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 10:04:25,897 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 10:04:25,898 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 10:04:25,898 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 10:04:25,898 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 10:04:25,898 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 10:04:25,899 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 10:04:25,899 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 10:04:25,899 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 10:04:25,900 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 10:04:25,900 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 10:04:25,900 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 10:04:25,900 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 10:04:25,900 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 10:04:25,900 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 10:04:25,901 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 10:04:25,901 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 10:04:25,901 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:04:25,901 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 10:04:25,901 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 10:04:25,901 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 10:04:25,902 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 10:04:25,902 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 10:04:25,902 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 10:04:25,902 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 10:04:25,902 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 10:04:25,902 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_1c37e8da-99f1-4a9b-86fc-bdce8f24e80b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c37e8da-99f1-4a9b-86fc-bdce8f24e80b/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7325716246446e6137919cda7fc42ef01fc613ff512d250d81e88f25c6debe0a [2022-12-14 10:04:26,076 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 10:04:26,094 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 10:04:26,096 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 10:04:26,097 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 10:04:26,097 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 10:04:26,098 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c37e8da-99f1-4a9b-86fc-bdce8f24e80b/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i [2022-12-14 10:04:28,618 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 10:04:28,913 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 10:04:28,914 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c37e8da-99f1-4a9b-86fc-bdce8f24e80b/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i [2022-12-14 10:04:28,930 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c37e8da-99f1-4a9b-86fc-bdce8f24e80b/bin/utaipan-gh47qXpMRh/data/c69ac42d4/1b8f2210456c434aae511c4a4d1dffac/FLAGa2909b529 [2022-12-14 10:04:29,174 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c37e8da-99f1-4a9b-86fc-bdce8f24e80b/bin/utaipan-gh47qXpMRh/data/c69ac42d4/1b8f2210456c434aae511c4a4d1dffac [2022-12-14 10:04:29,176 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 10:04:29,177 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 10:04:29,178 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 10:04:29,178 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 10:04:29,181 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 10:04:29,181 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:04:29" (1/1) ... [2022-12-14 10:04:29,182 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79e687a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:04:29, skipping insertion in model container [2022-12-14 10:04:29,182 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:04:29" (1/1) ... [2022-12-14 10:04:29,187 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 10:04:29,232 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 10:04:29,475 WARN L623 FunctionHandler]: Unknown extern function __kmalloc [2022-12-14 10:04:29,497 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-12-14 10:04:29,501 WARN L623 FunctionHandler]: Unknown extern function dev_set_drvdata [2022-12-14 10:04:29,516 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-12-14 10:04:29,556 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-12-14 10:04:29,560 WARN L623 FunctionHandler]: Unknown extern function dev_set_drvdata [2022-12-14 10:04:29,571 WARN L623 FunctionHandler]: Unknown extern function input_event [2022-12-14 10:04:29,574 WARN L623 FunctionHandler]: Unknown extern function input_event [2022-12-14 10:04:29,577 WARN L623 FunctionHandler]: Unknown extern function input_event [2022-12-14 10:04:29,615 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-14 10:04:29,616 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:04:29,621 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-14 10:04:29,626 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-14 10:04:29,633 WARN L623 FunctionHandler]: Unknown extern function strlcat [2022-12-14 10:04:29,644 WARN L623 FunctionHandler]: Unknown extern function input_set_abs_params [2022-12-14 10:04:29,645 WARN L623 FunctionHandler]: Unknown extern function input_set_abs_params [2022-12-14 10:04:29,645 WARN L623 FunctionHandler]: Unknown extern function input_set_abs_params [2022-12-14 10:04:29,647 WARN L623 FunctionHandler]: Unknown extern function input_register_device [2022-12-14 10:04:29,648 WARN L623 FunctionHandler]: Unknown extern function input_free_device [2022-12-14 10:04:29,648 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 10:04:29,653 WARN L623 FunctionHandler]: Unknown extern function input_unregister_device [2022-12-14 10:04:29,654 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 10:04:29,660 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:04:29,664 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-12-14 10:04:29,681 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 10:04:29,682 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-12-14 10:04:29,686 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_1c37e8da-99f1-4a9b-86fc-bdce8f24e80b/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i[115804,115817] [2022-12-14 10:04:29,695 WARN L623 FunctionHandler]: Unknown extern function ldv_undefined_pointer [2022-12-14 10:04:29,697 WARN L623 FunctionHandler]: Unknown extern function ldv_undefined_pointer [2022-12-14 10:04:29,716 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:04:29,738 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 10:04:29,823 WARN L623 FunctionHandler]: Unknown extern function __kmalloc [2022-12-14 10:04:29,825 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-12-14 10:04:29,826 WARN L623 FunctionHandler]: Unknown extern function dev_set_drvdata [2022-12-14 10:04:29,832 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-12-14 10:04:29,838 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-12-14 10:04:29,839 WARN L623 FunctionHandler]: Unknown extern function dev_set_drvdata [2022-12-14 10:04:29,840 WARN L623 FunctionHandler]: Unknown extern function input_event [2022-12-14 10:04:29,840 WARN L623 FunctionHandler]: Unknown extern function input_event [2022-12-14 10:04:29,841 WARN L623 FunctionHandler]: Unknown extern function input_event [2022-12-14 10:04:29,853 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-14 10:04:29,853 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:04:29,855 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-14 10:04:29,856 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-14 10:04:29,858 WARN L623 FunctionHandler]: Unknown extern function strlcat [2022-12-14 10:04:29,866 WARN L623 FunctionHandler]: Unknown extern function input_set_abs_params [2022-12-14 10:04:29,866 WARN L623 FunctionHandler]: Unknown extern function input_set_abs_params [2022-12-14 10:04:29,867 WARN L623 FunctionHandler]: Unknown extern function input_set_abs_params [2022-12-14 10:04:29,868 WARN L623 FunctionHandler]: Unknown extern function input_register_device [2022-12-14 10:04:29,869 WARN L623 FunctionHandler]: Unknown extern function input_free_device [2022-12-14 10:04:29,870 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 10:04:29,871 WARN L623 FunctionHandler]: Unknown extern function input_unregister_device [2022-12-14 10:04:29,872 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 10:04:29,874 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:04:29,875 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-12-14 10:04:29,876 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 10:04:29,877 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-12-14 10:04:29,878 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_1c37e8da-99f1-4a9b-86fc-bdce8f24e80b/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i[115804,115817] [2022-12-14 10:04:29,879 WARN L623 FunctionHandler]: Unknown extern function ldv_undefined_pointer [2022-12-14 10:04:29,881 WARN L623 FunctionHandler]: Unknown extern function ldv_undefined_pointer [2022-12-14 10:04:29,885 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:04:29,905 INFO L208 MainTranslator]: Completed translation [2022-12-14 10:04:29,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:04:29 WrapperNode [2022-12-14 10:04:29,905 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 10:04:29,906 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 10:04:29,906 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 10:04:29,906 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 10:04:29,911 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:04:29" (1/1) ... [2022-12-14 10:04:29,927 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:04:29" (1/1) ... [2022-12-14 10:04:29,955 INFO L138 Inliner]: procedures = 77, calls = 264, calls flagged for inlining = 29, calls inlined = 26, statements flattened = 743 [2022-12-14 10:04:29,955 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 10:04:29,956 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 10:04:29,956 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 10:04:29,956 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 10:04:29,963 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:04:29" (1/1) ... [2022-12-14 10:04:29,963 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:04:29" (1/1) ... [2022-12-14 10:04:29,968 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:04:29" (1/1) ... [2022-12-14 10:04:29,968 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:04:29" (1/1) ... [2022-12-14 10:04:29,982 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:04:29" (1/1) ... [2022-12-14 10:04:29,986 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:04:29" (1/1) ... [2022-12-14 10:04:29,989 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:04:29" (1/1) ... [2022-12-14 10:04:29,991 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:04:29" (1/1) ... [2022-12-14 10:04:29,995 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 10:04:29,996 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 10:04:29,996 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 10:04:29,996 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 10:04:29,997 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:04:29" (1/1) ... [2022-12-14 10:04:30,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:04:30,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c37e8da-99f1-4a9b-86fc-bdce8f24e80b/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:04:30,023 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c37e8da-99f1-4a9b-86fc-bdce8f24e80b/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 10:04:30,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c37e8da-99f1-4a9b-86fc-bdce8f24e80b/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 10:04:30,062 INFO L130 BoogieDeclarations]: Found specification of procedure kbtab_init [2022-12-14 10:04:30,062 INFO L138 BoogieDeclarations]: Found implementation of procedure kbtab_init [2022-12-14 10:04:30,062 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 10:04:30,062 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-12-14 10:04:30,062 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-12-14 10:04:30,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 10:04:30,062 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2022-12-14 10:04:30,063 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2022-12-14 10:04:30,063 INFO L130 BoogieDeclarations]: Found specification of procedure kbtab_exit [2022-12-14 10:04:30,063 INFO L138 BoogieDeclarations]: Found implementation of procedure kbtab_exit [2022-12-14 10:04:30,063 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2022-12-14 10:04:30,063 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2022-12-14 10:04:30,063 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 10:04:30,063 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 10:04:30,063 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-12-14 10:04:30,063 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-12-14 10:04:30,063 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-14 10:04:30,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-14 10:04:30,063 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2022-12-14 10:04:30,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2022-12-14 10:04:30,063 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 10:04:30,063 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2022-12-14 10:04:30,064 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2022-12-14 10:04:30,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 10:04:30,064 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-12-14 10:04:30,064 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-12-14 10:04:30,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 10:04:30,064 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-12-14 10:04:30,064 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-12-14 10:04:30,064 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume_stop [2022-12-14 10:04:30,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume_stop [2022-12-14 10:04:30,064 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-12-14 10:04:30,064 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-12-14 10:04:30,064 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_pointer [2022-12-14 10:04:30,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_pointer [2022-12-14 10:04:30,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 10:04:30,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 10:04:30,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 10:04:30,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 10:04:30,245 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 10:04:30,247 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 10:04:30,352 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_assume_stopFINAL: assume true; [2022-12-14 10:04:30,367 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-12-14 10:04:30,946 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2022-12-14 10:04:30,946 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false; [2022-12-14 10:04:30,958 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 10:04:31,108 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 10:04:31,108 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-12-14 10:04:31,111 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:04:31 BoogieIcfgContainer [2022-12-14 10:04:31,111 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 10:04:31,113 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 10:04:31,113 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 10:04:31,116 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 10:04:31,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 10:04:29" (1/3) ... [2022-12-14 10:04:31,117 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65852596 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:04:31, skipping insertion in model container [2022-12-14 10:04:31,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:04:29" (2/3) ... [2022-12-14 10:04:31,117 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65852596 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:04:31, skipping insertion in model container [2022-12-14 10:04:31,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:04:31" (3/3) ... [2022-12-14 10:04:31,119 INFO L112 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i [2022-12-14 10:04:31,136 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 10:04:31,136 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 10:04:31,187 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 10:04:31,193 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;@2660ca4a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 10:04:31,193 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 10:04:31,197 INFO L276 IsEmpty]: Start isEmpty. Operand has 117 states, 73 states have (on average 1.3835616438356164) internal successors, (101), 81 states have internal predecessors, (101), 29 states have call successors, (29), 14 states have call predecessors, (29), 13 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2022-12-14 10:04:31,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 10:04:31,202 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:04:31,203 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:04:31,203 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:04:31,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:04:31,207 INFO L85 PathProgramCache]: Analyzing trace with hash -1628490744, now seen corresponding path program 1 times [2022-12-14 10:04:31,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:04:31,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773092871] [2022-12-14 10:04:31,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:04:31,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:04:31,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:04:31,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:04:31,572 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:04:31,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773092871] [2022-12-14 10:04:31,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773092871] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:04:31,573 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:04:31,574 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:04:31,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602282497] [2022-12-14 10:04:31,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:04:31,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:04:31,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:04:31,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:04:31,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:04:31,608 INFO L87 Difference]: Start difference. First operand has 117 states, 73 states have (on average 1.3835616438356164) internal successors, (101), 81 states have internal predecessors, (101), 29 states have call successors, (29), 14 states have call predecessors, (29), 13 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 10:04:33,879 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 10:04:33,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:04:33,895 INFO L93 Difference]: Finished difference Result 312 states and 427 transitions. [2022-12-14 10:04:33,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:04:33,897 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2022-12-14 10:04:33,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:04:33,907 INFO L225 Difference]: With dead ends: 312 [2022-12-14 10:04:33,907 INFO L226 Difference]: Without dead ends: 193 [2022-12-14 10:04:33,910 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 10:04:33,913 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 109 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-12-14 10:04:33,914 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 244 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 51 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-12-14 10:04:33,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2022-12-14 10:04:33,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 188. [2022-12-14 10:04:33,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 123 states have (on average 1.2601626016260163) internal successors, (155), 128 states have internal predecessors, (155), 42 states have call successors, (42), 23 states have call predecessors, (42), 22 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2022-12-14 10:04:33,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 235 transitions. [2022-12-14 10:04:33,960 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 235 transitions. Word has length 10 [2022-12-14 10:04:33,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:04:33,960 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 235 transitions. [2022-12-14 10:04:33,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 10:04:33,961 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 235 transitions. [2022-12-14 10:04:33,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 10:04:33,961 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:04:33,961 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:04:33,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 10:04:33,961 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:04:33,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:04:33,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1056272784, now seen corresponding path program 1 times [2022-12-14 10:04:33,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:04:33,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829575979] [2022-12-14 10:04:33,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:04:33,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:04:33,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:04:34,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:04:34,046 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:04:34,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829575979] [2022-12-14 10:04:34,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829575979] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:04:34,046 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:04:34,047 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:04:34,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655343985] [2022-12-14 10:04:34,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:04:34,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:04:34,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:04:34,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:04:34,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:04:34,049 INFO L87 Difference]: Start difference. First operand 188 states and 235 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 10:04:36,108 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:04:37,729 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:04:37,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:04:37,744 INFO L93 Difference]: Finished difference Result 447 states and 556 transitions. [2022-12-14 10:04:37,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:04:37,745 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-12-14 10:04:37,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:04:37,747 INFO L225 Difference]: With dead ends: 447 [2022-12-14 10:04:37,747 INFO L226 Difference]: Without dead ends: 259 [2022-12-14 10:04:37,748 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 10:04:37,748 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 90 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-12-14 10:04:37,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 236 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-12-14 10:04:37,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2022-12-14 10:04:37,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 253. [2022-12-14 10:04:37,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 166 states have (on average 1.2409638554216869) internal successors, (206), 171 states have internal predecessors, (206), 55 states have call successors, (55), 32 states have call predecessors, (55), 31 states have return successors, (51), 49 states have call predecessors, (51), 51 states have call successors, (51) [2022-12-14 10:04:37,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 312 transitions. [2022-12-14 10:04:37,766 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 312 transitions. Word has length 11 [2022-12-14 10:04:37,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:04:37,766 INFO L495 AbstractCegarLoop]: Abstraction has 253 states and 312 transitions. [2022-12-14 10:04:37,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 10:04:37,766 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 312 transitions. [2022-12-14 10:04:37,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-12-14 10:04:37,767 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:04:37,767 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:04:37,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 10:04:37,767 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:04:37,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:04:37,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1363819812, now seen corresponding path program 1 times [2022-12-14 10:04:37,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:04:37,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784712493] [2022-12-14 10:04:37,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:04:37,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:04:37,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:04:37,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:04:37,911 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:04:37,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784712493] [2022-12-14 10:04:37,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784712493] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:04:37,911 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:04:37,911 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 10:04:37,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552279883] [2022-12-14 10:04:37,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:04:37,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 10:04:37,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:04:37,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 10:04:37,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:04:37,913 INFO L87 Difference]: Start difference. First operand 253 states and 312 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-14 10:04:40,193 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 10:04:40,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:04:40,206 INFO L93 Difference]: Finished difference Result 595 states and 765 transitions. [2022-12-14 10:04:40,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 10:04:40,206 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 36 [2022-12-14 10:04:40,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:04:40,208 INFO L225 Difference]: With dead ends: 595 [2022-12-14 10:04:40,208 INFO L226 Difference]: Without dead ends: 346 [2022-12-14 10:04:40,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-12-14 10:04:40,209 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 97 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 24 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-12-14 10:04:40,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 320 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 117 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-12-14 10:04:40,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2022-12-14 10:04:40,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 300. [2022-12-14 10:04:40,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 213 states have (on average 1.2910798122065728) internal successors, (275), 218 states have internal predecessors, (275), 55 states have call successors, (55), 32 states have call predecessors, (55), 31 states have return successors, (51), 49 states have call predecessors, (51), 51 states have call successors, (51) [2022-12-14 10:04:40,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 381 transitions. [2022-12-14 10:04:40,243 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 381 transitions. Word has length 36 [2022-12-14 10:04:40,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:04:40,243 INFO L495 AbstractCegarLoop]: Abstraction has 300 states and 381 transitions. [2022-12-14 10:04:40,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-14 10:04:40,244 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 381 transitions. [2022-12-14 10:04:40,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-12-14 10:04:40,245 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:04:40,245 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-14 10:04:40,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 10:04:40,246 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:04:40,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:04:40,246 INFO L85 PathProgramCache]: Analyzing trace with hash -1240391690, now seen corresponding path program 1 times [2022-12-14 10:04:40,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:04:40,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268284465] [2022-12-14 10:04:40,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:04:40,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:04:40,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:04:40,861 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-14 10:04:40,861 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:04:40,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268284465] [2022-12-14 10:04:40,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268284465] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:04:40,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:04:40,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 10:04:40,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035588775] [2022-12-14 10:04:40,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:04:40,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 10:04:40,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:04:40,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 10:04:40,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:04:40,863 INFO L87 Difference]: Start difference. First operand 300 states and 381 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 3 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 10:04:42,828 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:04:43,905 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:04:44,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:04:44,684 INFO L93 Difference]: Finished difference Result 580 states and 755 transitions. [2022-12-14 10:04:44,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 10:04:44,685 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 3 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 54 [2022-12-14 10:04:44,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:04:44,688 INFO L225 Difference]: With dead ends: 580 [2022-12-14 10:04:44,689 INFO L226 Difference]: Without dead ends: 359 [2022-12-14 10:04:44,690 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-12-14 10:04:44,691 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 205 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-12-14 10:04:44,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 371 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-12-14 10:04:44,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2022-12-14 10:04:44,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 218. [2022-12-14 10:04:44,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 152 states have (on average 1.2763157894736843) internal successors, (194), 156 states have internal predecessors, (194), 42 states have call successors, (42), 24 states have call predecessors, (42), 23 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2022-12-14 10:04:44,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 274 transitions. [2022-12-14 10:04:44,714 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 274 transitions. Word has length 54 [2022-12-14 10:04:44,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:04:44,714 INFO L495 AbstractCegarLoop]: Abstraction has 218 states and 274 transitions. [2022-12-14 10:04:44,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 3 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 10:04:44,714 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 274 transitions. [2022-12-14 10:04:44,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-12-14 10:04:44,716 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:04:44,716 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-14 10:04:44,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 10:04:44,716 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:04:44,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:04:44,717 INFO L85 PathProgramCache]: Analyzing trace with hash 210559777, now seen corresponding path program 1 times [2022-12-14 10:04:44,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:04:44,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784981035] [2022-12-14 10:04:44,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:04:44,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:04:44,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:04:45,333 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-12-14 10:04:45,334 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:04:45,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784981035] [2022-12-14 10:04:45,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784981035] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:04:45,334 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:04:45,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 10:04:45,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964706675] [2022-12-14 10:04:45,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:04:45,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 10:04:45,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:04:45,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 10:04:45,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-14 10:04:45,336 INFO L87 Difference]: Start difference. First operand 218 states and 274 transitions. Second operand has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 4 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-12-14 10:04:47,003 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:04:49,979 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:04:51,080 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:04:51,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:04:51,090 INFO L93 Difference]: Finished difference Result 469 states and 599 transitions. [2022-12-14 10:04:51,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 10:04:51,090 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 4 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 58 [2022-12-14 10:04:51,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:04:51,092 INFO L225 Difference]: With dead ends: 469 [2022-12-14 10:04:51,092 INFO L226 Difference]: Without dead ends: 466 [2022-12-14 10:04:51,092 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-12-14 10:04:51,093 INFO L413 NwaCegarLoop]: 234 mSDtfsCounter, 260 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-12-14 10:04:51,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 584 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-12-14 10:04:51,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2022-12-14 10:04:51,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 414. [2022-12-14 10:04:51,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 291 states have (on average 1.2817869415807561) internal successors, (373), 296 states have internal predecessors, (373), 78 states have call successors, (78), 45 states have call predecessors, (78), 44 states have return successors, (76), 72 states have call predecessors, (76), 74 states have call successors, (76) [2022-12-14 10:04:51,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 527 transitions. [2022-12-14 10:04:51,112 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 527 transitions. Word has length 58 [2022-12-14 10:04:51,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:04:51,113 INFO L495 AbstractCegarLoop]: Abstraction has 414 states and 527 transitions. [2022-12-14 10:04:51,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 4 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-12-14 10:04:51,113 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 527 transitions. [2022-12-14 10:04:51,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-12-14 10:04:51,114 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:04:51,114 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:04:51,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 10:04:51,115 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:04:51,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:04:51,115 INFO L85 PathProgramCache]: Analyzing trace with hash -2048543875, now seen corresponding path program 1 times [2022-12-14 10:04:51,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:04:51,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27283918] [2022-12-14 10:04:51,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:04:51,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:04:51,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:04:51,318 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-14 10:04:51,318 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:04:51,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27283918] [2022-12-14 10:04:51,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27283918] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:04:51,319 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:04:51,319 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 10:04:51,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415971033] [2022-12-14 10:04:51,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:04:51,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 10:04:51,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:04:51,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 10:04:51,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:04:51,320 INFO L87 Difference]: Start difference. First operand 414 states and 527 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2022-12-14 10:04:54,879 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:04:56,118 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:04:56,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:04:56,151 INFO L93 Difference]: Finished difference Result 716 states and 916 transitions. [2022-12-14 10:04:56,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 10:04:56,152 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 65 [2022-12-14 10:04:56,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:04:56,153 INFO L225 Difference]: With dead ends: 716 [2022-12-14 10:04:56,153 INFO L226 Difference]: Without dead ends: 294 [2022-12-14 10:04:56,155 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-14 10:04:56,155 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 39 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-12-14 10:04:56,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 435 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 99 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-12-14 10:04:56,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2022-12-14 10:04:56,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 281. [2022-12-14 10:04:56,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 194 states have (on average 1.268041237113402) internal successors, (246), 199 states have internal predecessors, (246), 59 states have call successors, (59), 28 states have call predecessors, (59), 27 states have return successors, (58), 53 states have call predecessors, (58), 55 states have call successors, (58) [2022-12-14 10:04:56,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 363 transitions. [2022-12-14 10:04:56,168 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 363 transitions. Word has length 65 [2022-12-14 10:04:56,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:04:56,168 INFO L495 AbstractCegarLoop]: Abstraction has 281 states and 363 transitions. [2022-12-14 10:04:56,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2022-12-14 10:04:56,168 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 363 transitions. [2022-12-14 10:04:56,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-12-14 10:04:56,169 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:04:56,169 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:04:56,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 10:04:56,169 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:04:56,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:04:56,170 INFO L85 PathProgramCache]: Analyzing trace with hash 1593018970, now seen corresponding path program 1 times [2022-12-14 10:04:56,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:04:56,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840856765] [2022-12-14 10:04:56,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:04:56,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:04:56,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:04:57,038 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-12-14 10:04:57,039 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:04:57,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840856765] [2022-12-14 10:04:57,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840856765] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:04:57,039 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:04:57,039 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 10:04:57,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007897547] [2022-12-14 10:04:57,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:04:57,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 10:04:57,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:04:57,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 10:04:57,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-14 10:04:57,041 INFO L87 Difference]: Start difference. First operand 281 states and 363 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 4 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-12-14 10:04:59,326 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:05:02,145 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:05:02,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:05:02,522 INFO L93 Difference]: Finished difference Result 544 states and 713 transitions. [2022-12-14 10:05:02,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 10:05:02,522 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 4 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 73 [2022-12-14 10:05:02,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:05:02,525 INFO L225 Difference]: With dead ends: 544 [2022-12-14 10:05:02,525 INFO L226 Difference]: Without dead ends: 539 [2022-12-14 10:05:02,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:05:02,526 INFO L413 NwaCegarLoop]: 182 mSDtfsCounter, 277 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-12-14 10:05:02,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 471 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-12-14 10:05:02,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2022-12-14 10:05:02,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 516. [2022-12-14 10:05:02,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 361 states have (on average 1.2770083102493075) internal successors, (461), 366 states have internal predecessors, (461), 106 states have call successors, (106), 49 states have call predecessors, (106), 48 states have return successors, (112), 100 states have call predecessors, (112), 102 states have call successors, (112) [2022-12-14 10:05:02,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 679 transitions. [2022-12-14 10:05:02,549 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 679 transitions. Word has length 73 [2022-12-14 10:05:02,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:05:02,549 INFO L495 AbstractCegarLoop]: Abstraction has 516 states and 679 transitions. [2022-12-14 10:05:02,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 4 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-12-14 10:05:02,550 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 679 transitions. [2022-12-14 10:05:02,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-12-14 10:05:02,550 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:05:02,550 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-14 10:05:02,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 10:05:02,551 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:05:02,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:05:02,551 INFO L85 PathProgramCache]: Analyzing trace with hash -1767177157, now seen corresponding path program 1 times [2022-12-14 10:05:02,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:05:02,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296070090] [2022-12-14 10:05:02,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:05:02,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:05:02,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:05:02,712 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-12-14 10:05:02,712 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:05:02,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296070090] [2022-12-14 10:05:02,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296070090] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:05:02,712 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:05:02,713 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:05:02,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120612912] [2022-12-14 10:05:02,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:05:02,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:05:02,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:05:02,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:05:02,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:05:02,714 INFO L87 Difference]: Start difference. First operand 516 states and 679 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-14 10:05:04,500 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:05:05,719 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:05:05,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:05:05,751 INFO L93 Difference]: Finished difference Result 875 states and 1164 transitions. [2022-12-14 10:05:05,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:05:05,751 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 72 [2022-12-14 10:05:05,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:05:05,753 INFO L225 Difference]: With dead ends: 875 [2022-12-14 10:05:05,753 INFO L226 Difference]: Without dead ends: 402 [2022-12-14 10:05:05,754 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 10:05:05,754 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 5 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:05:05,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 220 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-12-14 10:05:05,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2022-12-14 10:05:05,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 402. [2022-12-14 10:05:05,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 279 states have (on average 1.2508960573476702) internal successors, (349), 286 states have internal predecessors, (349), 84 states have call successors, (84), 40 states have call predecessors, (84), 38 states have return successors, (84), 75 states have call predecessors, (84), 80 states have call successors, (84) [2022-12-14 10:05:05,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 517 transitions. [2022-12-14 10:05:05,777 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 517 transitions. Word has length 72 [2022-12-14 10:05:05,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:05:05,778 INFO L495 AbstractCegarLoop]: Abstraction has 402 states and 517 transitions. [2022-12-14 10:05:05,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-14 10:05:05,778 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 517 transitions. [2022-12-14 10:05:05,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-12-14 10:05:05,778 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:05:05,779 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-14 10:05:05,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 10:05:05,779 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:05:05,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:05:05,779 INFO L85 PathProgramCache]: Analyzing trace with hash -593352032, now seen corresponding path program 1 times [2022-12-14 10:05:05,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:05:05,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759769808] [2022-12-14 10:05:05,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:05:05,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:05:05,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:05:06,275 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-12-14 10:05:06,275 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:05:06,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759769808] [2022-12-14 10:05:06,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759769808] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:05:06,275 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:05:06,276 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 10:05:06,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109625227] [2022-12-14 10:05:06,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:05:06,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 10:05:06,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:05:06,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 10:05:06,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:05:06,277 INFO L87 Difference]: Start difference. First operand 402 states and 517 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-14 10:05:08,629 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 10:05:08,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:05:08,772 INFO L93 Difference]: Finished difference Result 435 states and 553 transitions. [2022-12-14 10:05:08,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 10:05:08,774 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 74 [2022-12-14 10:05:08,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:05:08,776 INFO L225 Difference]: With dead ends: 435 [2022-12-14 10:05:08,776 INFO L226 Difference]: Without dead ends: 432 [2022-12-14 10:05:08,776 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-12-14 10:05:08,777 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 39 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-12-14 10:05:08,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 413 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 129 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-12-14 10:05:08,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2022-12-14 10:05:08,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 423. [2022-12-14 10:05:08,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 295 states have (on average 1.2372881355932204) internal successors, (365), 301 states have internal predecessors, (365), 86 states have call successors, (86), 43 states have call predecessors, (86), 41 states have return successors, (86), 78 states have call predecessors, (86), 82 states have call successors, (86) [2022-12-14 10:05:08,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 537 transitions. [2022-12-14 10:05:08,798 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 537 transitions. Word has length 74 [2022-12-14 10:05:08,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:05:08,798 INFO L495 AbstractCegarLoop]: Abstraction has 423 states and 537 transitions. [2022-12-14 10:05:08,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-14 10:05:08,798 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 537 transitions. [2022-12-14 10:05:08,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-12-14 10:05:08,799 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:05:08,799 INFO L195 NwaCegarLoop]: trace histogram [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 10:05:08,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 10:05:08,799 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:05:08,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:05:08,799 INFO L85 PathProgramCache]: Analyzing trace with hash -1214165512, now seen corresponding path program 1 times [2022-12-14 10:05:08,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:05:08,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730122400] [2022-12-14 10:05:08,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:05:08,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:05:08,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:05:09,141 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-12-14 10:05:09,142 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:05:09,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730122400] [2022-12-14 10:05:09,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730122400] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:05:09,142 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:05:09,142 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:05:09,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325728667] [2022-12-14 10:05:09,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:05:09,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 10:05:09,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:05:09,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 10:05:09,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-12-14 10:05:09,143 INFO L87 Difference]: Start difference. First operand 423 states and 537 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 4 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-12-14 10:05:11,359 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:05:12,376 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:05:14,384 WARN L539 Checker$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 10:05:16,391 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:05:18,282 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:05:19,752 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:05:19,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:05:19,845 INFO L93 Difference]: Finished difference Result 1181 states and 1517 transitions. [2022-12-14 10:05:19,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-14 10:05:19,845 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 4 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 75 [2022-12-14 10:05:19,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:05:19,848 INFO L225 Difference]: With dead ends: 1181 [2022-12-14 10:05:19,848 INFO L226 Difference]: Without dead ends: 907 [2022-12-14 10:05:19,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2022-12-14 10:05:19,849 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 213 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 564 mSolverCounterSat, 91 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 564 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2022-12-14 10:05:19,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 349 Invalid, 657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 564 Invalid, 2 Unknown, 0 Unchecked, 10.6s Time] [2022-12-14 10:05:19,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 907 states. [2022-12-14 10:05:19,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 907 to 844. [2022-12-14 10:05:19,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 590 states have (on average 1.2779661016949153) internal successors, (754), 604 states have internal predecessors, (754), 171 states have call successors, (171), 86 states have call predecessors, (171), 82 states have return successors, (175), 153 states have call predecessors, (175), 166 states have call successors, (175) [2022-12-14 10:05:19,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1100 transitions. [2022-12-14 10:05:19,906 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1100 transitions. Word has length 75 [2022-12-14 10:05:19,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:05:19,906 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1100 transitions. [2022-12-14 10:05:19,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 4 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-12-14 10:05:19,906 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1100 transitions. [2022-12-14 10:05:19,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-12-14 10:05:19,907 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:05:19,907 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 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] [2022-12-14 10:05:19,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 10:05:19,907 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:05:19,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:05:19,908 INFO L85 PathProgramCache]: Analyzing trace with hash 1499592912, now seen corresponding path program 1 times [2022-12-14 10:05:19,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:05:19,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019147895] [2022-12-14 10:05:19,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:05:19,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:05:19,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:05:20,110 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-12-14 10:05:20,110 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:05:20,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019147895] [2022-12-14 10:05:20,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019147895] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:05:20,111 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:05:20,111 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 10:05:20,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208512646] [2022-12-14 10:05:20,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:05:20,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 10:05:20,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:05:20,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 10:05:20,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 10:05:20,112 INFO L87 Difference]: Start difference. First operand 844 states and 1100 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 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 10:05:22,363 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 10:05:23,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:05:23,314 INFO L93 Difference]: Finished difference Result 955 states and 1255 transitions. [2022-12-14 10:05:23,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 10:05:23,314 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 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 82 [2022-12-14 10:05:23,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:05:23,317 INFO L225 Difference]: With dead ends: 955 [2022-12-14 10:05:23,317 INFO L226 Difference]: Without dead ends: 940 [2022-12-14 10:05:23,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:05:23,318 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 164 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:05:23,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 288 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 66 Invalid, 1 Unknown, 0 Unchecked, 3.1s Time] [2022-12-14 10:05:23,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 940 states. [2022-12-14 10:05:23,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 940 to 848. [2022-12-14 10:05:23,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 848 states, 594 states have (on average 1.2693602693602695) internal successors, (754), 608 states have internal predecessors, (754), 171 states have call successors, (171), 86 states have call predecessors, (171), 82 states have return successors, (175), 153 states have call predecessors, (175), 166 states have call successors, (175) [2022-12-14 10:05:23,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 848 states to 848 states and 1100 transitions. [2022-12-14 10:05:23,370 INFO L78 Accepts]: Start accepts. Automaton has 848 states and 1100 transitions. Word has length 82 [2022-12-14 10:05:23,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:05:23,370 INFO L495 AbstractCegarLoop]: Abstraction has 848 states and 1100 transitions. [2022-12-14 10:05:23,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 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 10:05:23,371 INFO L276 IsEmpty]: Start isEmpty. Operand 848 states and 1100 transitions. [2022-12-14 10:05:23,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-12-14 10:05:23,371 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:05:23,371 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:05:23,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 10:05:23,371 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:05:23,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:05:23,372 INFO L85 PathProgramCache]: Analyzing trace with hash 362346066, now seen corresponding path program 1 times [2022-12-14 10:05:23,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:05:23,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579757097] [2022-12-14 10:05:23,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:05:23,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:05:23,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:05:23,566 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-12-14 10:05:23,567 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:05:23,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579757097] [2022-12-14 10:05:23,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579757097] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:05:23,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1201006076] [2022-12-14 10:05:23,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:05:23,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:05:23,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c37e8da-99f1-4a9b-86fc-bdce8f24e80b/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:05:23,568 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c37e8da-99f1-4a9b-86fc-bdce8f24e80b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:05:23,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c37e8da-99f1-4a9b-86fc-bdce8f24e80b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 10:05:24,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:05:24,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 1872 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 10:05:24,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:05:24,131 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-12-14 10:05:24,131 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 10:05:24,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1201006076] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:05:24,132 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 10:05:24,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2022-12-14 10:05:24,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160370326] [2022-12-14 10:05:24,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:05:24,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 10:05:24,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:05:24,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 10:05:24,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:05:24,133 INFO L87 Difference]: Start difference. First operand 848 states and 1100 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 3 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-12-14 10:05:25,887 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:05:27,685 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:05:27,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:05:27,736 INFO L93 Difference]: Finished difference Result 1205 states and 1557 transitions. [2022-12-14 10:05:27,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 10:05:27,737 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 3 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 85 [2022-12-14 10:05:27,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:05:27,738 INFO L225 Difference]: With dead ends: 1205 [2022-12-14 10:05:27,738 INFO L226 Difference]: Without dead ends: 436 [2022-12-14 10:05:27,739 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:05:27,740 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 36 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-12-14 10:05:27,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 254 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-12-14 10:05:27,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2022-12-14 10:05:27,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 436. [2022-12-14 10:05:27,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 296 states have (on average 1.1655405405405406) internal successors, (345), 303 states have internal predecessors, (345), 90 states have call successors, (90), 52 states have call predecessors, (90), 49 states have return successors, (90), 80 states have call predecessors, (90), 85 states have call successors, (90) [2022-12-14 10:05:27,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 525 transitions. [2022-12-14 10:05:27,760 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 525 transitions. Word has length 85 [2022-12-14 10:05:27,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:05:27,761 INFO L495 AbstractCegarLoop]: Abstraction has 436 states and 525 transitions. [2022-12-14 10:05:27,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 3 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-12-14 10:05:27,761 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 525 transitions. [2022-12-14 10:05:27,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-12-14 10:05:27,761 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:05:27,762 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:05:27,771 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c37e8da-99f1-4a9b-86fc-bdce8f24e80b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 10:05:27,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c37e8da-99f1-4a9b-86fc-bdce8f24e80b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-12-14 10:05:27,962 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:05:27,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:05:27,963 INFO L85 PathProgramCache]: Analyzing trace with hash -557586361, now seen corresponding path program 1 times [2022-12-14 10:05:27,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:05:27,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672586556] [2022-12-14 10:05:27,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:05:27,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:05:28,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:05:28,257 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-12-14 10:05:28,257 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:05:28,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672586556] [2022-12-14 10:05:28,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672586556] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:05:28,258 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:05:28,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:05:28,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021927737] [2022-12-14 10:05:28,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:05:28,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:05:28,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:05:28,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:05:28,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:05:28,259 INFO L87 Difference]: Start difference. First operand 436 states and 525 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 10:05:30,528 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 10:05:30,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:05:30,565 INFO L93 Difference]: Finished difference Result 614 states and 740 transitions. [2022-12-14 10:05:30,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:05:30,566 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 98 [2022-12-14 10:05:30,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:05:30,567 INFO L225 Difference]: With dead ends: 614 [2022-12-14 10:05:30,567 INFO L226 Difference]: Without dead ends: 279 [2022-12-14 10:05:30,568 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 10:05:30,568 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 5 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-12-14 10:05:30,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 218 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-12-14 10:05:30,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2022-12-14 10:05:30,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 279. [2022-12-14 10:05:30,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 189 states have (on average 1.1428571428571428) internal successors, (216), 193 states have internal predecessors, (216), 58 states have call successors, (58), 34 states have call predecessors, (58), 31 states have return successors, (53), 51 states have call predecessors, (53), 53 states have call successors, (53) [2022-12-14 10:05:30,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 327 transitions. [2022-12-14 10:05:30,583 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 327 transitions. Word has length 98 [2022-12-14 10:05:30,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:05:30,583 INFO L495 AbstractCegarLoop]: Abstraction has 279 states and 327 transitions. [2022-12-14 10:05:30,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 10:05:30,583 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 327 transitions. [2022-12-14 10:05:30,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-12-14 10:05:30,584 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:05:30,584 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:05:30,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-14 10:05:30,584 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:05:30,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:05:30,585 INFO L85 PathProgramCache]: Analyzing trace with hash 665763042, now seen corresponding path program 1 times [2022-12-14 10:05:30,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:05:30,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927326230] [2022-12-14 10:05:30,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:05:30,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:05:30,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:05:31,329 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-12-14 10:05:31,329 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:05:31,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927326230] [2022-12-14 10:05:31,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927326230] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:05:31,329 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:05:31,329 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:05:31,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292621027] [2022-12-14 10:05:31,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:05:31,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 10:05:31,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:05:31,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 10:05:31,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-12-14 10:05:31,330 INFO L87 Difference]: Start difference. First operand 279 states and 327 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 4 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-12-14 10:05:33,646 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 10:05:33,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:05:33,816 INFO L93 Difference]: Finished difference Result 309 states and 354 transitions. [2022-12-14 10:05:33,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 10:05:33,817 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 4 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 100 [2022-12-14 10:05:33,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:05:33,817 INFO L225 Difference]: With dead ends: 309 [2022-12-14 10:05:33,818 INFO L226 Difference]: Without dead ends: 284 [2022-12-14 10:05:33,818 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2022-12-14 10:05:33,818 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 249 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 115 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-12-14 10:05:33,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 150 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 238 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-12-14 10:05:33,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2022-12-14 10:05:33,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 280. [2022-12-14 10:05:33,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 189 states have (on average 1.1164021164021165) internal successors, (211), 193 states have internal predecessors, (211), 57 states have call successors, (57), 36 states have call predecessors, (57), 33 states have return successors, (52), 50 states have call predecessors, (52), 52 states have call successors, (52) [2022-12-14 10:05:33,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 320 transitions. [2022-12-14 10:05:33,834 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 320 transitions. Word has length 100 [2022-12-14 10:05:33,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:05:33,834 INFO L495 AbstractCegarLoop]: Abstraction has 280 states and 320 transitions. [2022-12-14 10:05:33,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 4 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-12-14 10:05:33,834 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 320 transitions. [2022-12-14 10:05:33,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-12-14 10:05:33,835 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:05:33,835 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:05:33,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-14 10:05:33,836 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:05:33,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:05:33,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1124712059, now seen corresponding path program 1 times [2022-12-14 10:05:33,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:05:33,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526262410] [2022-12-14 10:05:33,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:05:33,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:05:34,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:05:34,435 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-12-14 10:05:34,435 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:05:34,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526262410] [2022-12-14 10:05:34,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526262410] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:05:34,435 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:05:34,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 10:05:34,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201672711] [2022-12-14 10:05:34,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:05:34,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 10:05:34,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:05:34,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 10:05:34,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:05:34,437 INFO L87 Difference]: Start difference. First operand 280 states and 320 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-12-14 10:05:36,484 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:05:38,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:05:38,446 INFO L93 Difference]: Finished difference Result 287 states and 324 transitions. [2022-12-14 10:05:38,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 10:05:38,446 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 123 [2022-12-14 10:05:38,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:05:38,447 INFO L225 Difference]: With dead ends: 287 [2022-12-14 10:05:38,447 INFO L226 Difference]: Without dead ends: 244 [2022-12-14 10:05:38,447 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-14 10:05:38,448 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 38 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:05:38,448 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 384 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-12-14 10:05:38,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2022-12-14 10:05:38,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 242. [2022-12-14 10:05:38,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 162 states have (on average 1.1111111111111112) internal successors, (180), 166 states have internal predecessors, (180), 49 states have call successors, (49), 32 states have call predecessors, (49), 30 states have return successors, (44), 43 states have call predecessors, (44), 44 states have call successors, (44) [2022-12-14 10:05:38,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 273 transitions. [2022-12-14 10:05:38,462 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 273 transitions. Word has length 123 [2022-12-14 10:05:38,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:05:38,462 INFO L495 AbstractCegarLoop]: Abstraction has 242 states and 273 transitions. [2022-12-14 10:05:38,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-12-14 10:05:38,463 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 273 transitions. [2022-12-14 10:05:38,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-12-14 10:05:38,464 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:05:38,464 INFO L195 NwaCegarLoop]: trace histogram [8, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:05:38,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-14 10:05:38,464 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:05:38,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:05:38,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1694987693, now seen corresponding path program 1 times [2022-12-14 10:05:38,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:05:38,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925028955] [2022-12-14 10:05:38,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:05:38,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:05:39,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:05:40,117 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2022-12-14 10:05:40,117 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:05:40,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925028955] [2022-12-14 10:05:40,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925028955] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:05:40,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1818132996] [2022-12-14 10:05:40,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:05:40,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:05:40,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c37e8da-99f1-4a9b-86fc-bdce8f24e80b/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:05:40,119 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c37e8da-99f1-4a9b-86fc-bdce8f24e80b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:05:40,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c37e8da-99f1-4a9b-86fc-bdce8f24e80b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 10:05:40,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:05:40,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 2421 conjuncts, 33 conjunts are in the unsatisfiable core [2022-12-14 10:05:40,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:05:41,060 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 31 proven. 19 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-12-14 10:05:41,060 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 10:05:42,114 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 31 proven. 6 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2022-12-14 10:05:42,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1818132996] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 10:05:42,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1749274901] [2022-12-14 10:05:42,136 INFO L159 IcfgInterpreter]: Started Sifa with 102 locations of interest [2022-12-14 10:05:42,136 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 10:05:42,140 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 10:05:42,146 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 10:05:42,146 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 10:05:42,885 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1608 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 162 treesize of output 266 [2022-12-14 10:05:43,005 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1452 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 147 treesize of output 241 [2022-12-14 10:05:43,082 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 636 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 156 [2022-12-14 10:05:43,189 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 121 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 61 [2022-12-14 10:05:43,275 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1055 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 201 [2022-12-14 10:05:49,189 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 10:05:49,195 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 10:06:07,528 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 10:06:07,652 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 10:06:21,094 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 10:06:21,251 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 10:06:22,937 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 10:06:22,952 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 10:06:22,967 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 10:06:23,014 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 10:06:36,778 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 10:06:36,936 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 10:06:50,424 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 10:06:50,492 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 10:06:52,006 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 10:06:52,025 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 10:06:52,041 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 10:06:52,247 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 10:06:52,263 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 10:06:52,275 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 10:06:52,346 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 46 [2022-12-14 10:06:52,373 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 40 [2022-12-14 10:06:52,418 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 10:06:52,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:06:52,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:06:52,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:06:52,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:06:52,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:06:52,641 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 10:06:52,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:06:52,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:06:52,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:06:52,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:06:52,818 INFO L321 Elim1Store]: treesize reduction 19, result has 40.6 percent of original size [2022-12-14 10:06:52,819 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 13 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 59 [2022-12-14 10:06:52,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:06:52,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:06:52,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:06:52,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:06:52,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:06:52,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:06:52,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:06:52,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:06:52,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:06:52,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:06:52,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:06:52,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:06:52,899 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 10:06:52,899 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 69 treesize of output 65 [2022-12-14 10:06:52,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:06:52,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:06:52,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:06:52,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:06:52,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:06:52,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:06:52,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:06:52,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:06:52,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:06:52,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:06:52,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:06:52,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:06:52,955 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 10:06:52,955 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 69 treesize of output 65 [2022-12-14 10:06:52,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:06:52,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:06:52,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:06:52,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:06:52,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:06:52,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:06:52,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:06:52,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:06:52,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:06:52,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:06:52,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:06:52,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:06:53,001 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 10:06:53,001 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 69 treesize of output 65 [2022-12-14 10:06:53,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:06:53,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:06:53,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:06:53,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:06:53,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:06:53,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:06:53,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:06:53,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:06:53,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:06:53,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:06:53,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:06:53,044 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 10:06:53,044 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 65 treesize of output 76 [2022-12-14 10:06:53,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:06:53,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:06:53,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:06:53,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:06:53,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:06:53,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:06:53,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:06:53,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:06:53,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:06:53,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:06:53,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:06:53,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:06:53,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:06:53,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:06:53,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:06:53,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:06:53,505 INFO L217 Elim1Store]: Index analysis took 117 ms