./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-a9e7fb5-1-32_7a-drivers--media--rc--imon.ko-entry_point_ldv-val-v0.8.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_145375f9-bcb9-48fb-b8fc-b451c47dc12c/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_145375f9-bcb9-48fb-b8fc-b451c47dc12c/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_145375f9-bcb9-48fb-b8fc-b451c47dc12c/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_145375f9-bcb9-48fb-b8fc-b451c47dc12c/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-a9e7fb5-1-32_7a-drivers--media--rc--imon.ko-entry_point_ldv-val-v0.8.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_145375f9-bcb9-48fb-b8fc-b451c47dc12c/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_145375f9-bcb9-48fb-b8fc-b451c47dc12c/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 4b03525ec5447375a01688a728ac5f10add5f84664db60bd75967c00682bdc6d --- 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 11:37:31,671 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 11:37:31,672 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 11:37:31,686 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 11:37:31,686 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 11:37:31,687 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 11:37:31,688 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 11:37:31,689 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 11:37:31,690 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 11:37:31,691 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 11:37:31,691 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 11:37:31,692 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 11:37:31,692 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 11:37:31,693 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 11:37:31,694 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 11:37:31,694 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 11:37:31,695 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 11:37:31,696 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 11:37:31,697 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 11:37:31,698 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 11:37:31,699 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 11:37:31,700 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 11:37:31,701 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 11:37:31,701 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 11:37:31,704 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 11:37:31,704 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 11:37:31,704 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 11:37:31,705 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 11:37:31,705 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 11:37:31,706 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 11:37:31,706 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 11:37:31,706 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 11:37:31,707 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 11:37:31,708 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 11:37:31,708 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 11:37:31,709 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 11:37:31,709 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 11:37:31,709 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 11:37:31,710 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 11:37:31,710 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 11:37:31,711 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 11:37:31,711 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_145375f9-bcb9-48fb-b8fc-b451c47dc12c/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 11:37:31,728 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 11:37:31,728 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 11:37:31,728 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 11:37:31,728 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 11:37:31,729 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 11:37:31,729 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 11:37:31,729 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 11:37:31,729 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 11:37:31,729 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 11:37:31,729 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 11:37:31,729 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 11:37:31,729 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 11:37:31,730 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 11:37:31,730 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 11:37:31,730 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 11:37:31,730 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 11:37:31,730 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 11:37:31,730 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 11:37:31,731 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 11:37:31,731 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 11:37:31,731 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 11:37:31,731 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 11:37:31,731 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 11:37:31,731 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 11:37:31,731 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 11:37:31,732 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 11:37:31,732 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 11:37:31,732 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 11:37:31,732 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 11:37:31,732 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:37:31,732 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 11:37:31,732 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 11:37:31,732 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 11:37:31,733 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 11:37:31,733 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 11:37:31,733 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 11:37:31,733 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 11:37:31,733 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 11:37:31,733 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_145375f9-bcb9-48fb-b8fc-b451c47dc12c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_145375f9-bcb9-48fb-b8fc-b451c47dc12c/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b03525ec5447375a01688a728ac5f10add5f84664db60bd75967c00682bdc6d [2022-12-14 11:37:31,904 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 11:37:31,920 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 11:37:31,922 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 11:37:31,923 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 11:37:31,923 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 11:37:31,924 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_145375f9-bcb9-48fb-b8fc-b451c47dc12c/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-a9e7fb5-1-32_7a-drivers--media--rc--imon.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-12-14 11:37:34,424 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 11:37:34,814 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 11:37:34,814 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_145375f9-bcb9-48fb-b8fc-b451c47dc12c/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-a9e7fb5-1-32_7a-drivers--media--rc--imon.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-12-14 11:37:34,841 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_145375f9-bcb9-48fb-b8fc-b451c47dc12c/bin/utaipan-gh47qXpMRh/data/551850809/db6076fbd4f84065a0b50a3084c0b22a/FLAGa56e69808 [2022-12-14 11:37:34,997 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_145375f9-bcb9-48fb-b8fc-b451c47dc12c/bin/utaipan-gh47qXpMRh/data/551850809/db6076fbd4f84065a0b50a3084c0b22a [2022-12-14 11:37:35,001 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 11:37:35,002 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 11:37:35,004 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 11:37:35,004 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 11:37:35,010 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 11:37:35,011 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:37:34" (1/1) ... [2022-12-14 11:37:35,013 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36ef26f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:37:35, skipping insertion in model container [2022-12-14 11:37:35,013 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:37:34" (1/1) ... [2022-12-14 11:37:35,030 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 11:37:35,158 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 11:37:35,538 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 11:37:35,805 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-14 11:37:35,835 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-12-14 11:37:35,855 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:37:35,891 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 11:37:35,892 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-12-14 11:37:35,893 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_fmt [2022-12-14 11:37:35,923 WARN L623 FunctionHandler]: Unknown extern function dev_set_drvdata [2022-12-14 11:37:35,933 WARN L623 FunctionHandler]: Unknown extern function input_event [2022-12-14 11:37:35,936 WARN L623 FunctionHandler]: Unknown extern function input_event [2022-12-14 11:37:35,939 WARN L623 FunctionHandler]: Unknown extern function input_event [2022-12-14 11:37:35,942 WARN L623 FunctionHandler]: Unknown extern function input_event [2022-12-14 11:37:35,950 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-12-14 11:37:35,953 WARN L623 FunctionHandler]: Unknown extern function dev_set_drvdata [2022-12-14 11:37:36,065 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-12-14 11:37:36,065 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-12-14 11:37:36,066 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-12-14 11:37:36,066 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 11:37:36,069 WARN L623 FunctionHandler]: Unknown extern function dev_printk [2022-12-14 11:37:36,071 WARN L623 FunctionHandler]: Unknown extern function usb_find_interface [2022-12-14 11:37:36,072 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:37:36,073 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:37:36,074 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:37:36,075 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:37:36,078 WARN L623 FunctionHandler]: Unknown extern function dev_printk [2022-12-14 11:37:36,080 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:37:36,081 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:37:36,082 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:37:36,084 WARN L623 FunctionHandler]: Unknown extern function dev_printk [2022-12-14 11:37:36,094 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-14 11:37:36,094 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:37:36,095 WARN L623 FunctionHandler]: Unknown extern function wait_for_completion_interruptible [2022-12-14 11:37:36,095 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:37:36,096 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:37:36,097 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 11:37:36,097 WARN L623 FunctionHandler]: Unknown extern function msecs_to_jiffies [2022-12-14 11:37:36,100 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-14 11:37:36,100 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout [2022-12-14 11:37:36,107 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:37:36,108 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:37:36,113 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:37:36,121 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:37:36,126 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-12-14 11:37:36,128 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 11:37:36,133 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-12-14 11:37:36,138 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-12-14 11:37:36,144 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-12-14 11:37:36,152 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:37:36,153 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:37:36,153 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:37:36,157 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:37:36,159 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:37:36,161 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:37:36,162 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:37:36,163 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:37:36,164 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:37:36,166 WARN L623 FunctionHandler]: Unknown extern function dev_printk [2022-12-14 11:37:36,169 WARN L623 FunctionHandler]: Unknown extern function complete [2022-12-14 11:37:36,180 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 11:37:36,182 WARN L623 FunctionHandler]: Unknown extern function dev_printk [2022-12-14 11:37:36,186 WARN L623 FunctionHandler]: Unknown extern function dev_printk [2022-12-14 11:37:36,188 WARN L623 FunctionHandler]: Unknown extern function dev_printk [2022-12-14 11:37:36,189 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 11:37:36,192 WARN L623 FunctionHandler]: Unknown extern function dev_printk [2022-12-14 11:37:36,204 WARN L623 FunctionHandler]: Unknown extern function do_gettimeofday [2022-12-14 11:37:36,211 WARN L623 FunctionHandler]: Unknown extern function rc_g_keycode_from_table [2022-12-14 11:37:36,212 WARN L623 FunctionHandler]: Unknown extern function rc_g_keycode_from_table [2022-12-14 11:37:36,217 WARN L623 FunctionHandler]: Unknown extern function rc_g_keycode_from_table [2022-12-14 11:37:36,227 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 11:37:36,241 WARN L623 FunctionHandler]: Unknown extern function dev_printk [2022-12-14 11:37:36,244 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 11:37:36,265 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 11:37:36,274 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 11:37:36,277 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 11:37:36,285 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 11:37:36,295 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 11:37:36,297 WARN L623 FunctionHandler]: Unknown extern function dev_printk [2022-12-14 11:37:36,300 WARN L623 FunctionHandler]: Unknown extern function dev_printk [2022-12-14 11:37:36,303 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:37:36,304 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:37:36,305 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:37:36,306 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 11:37:36,306 WARN L623 FunctionHandler]: Unknown extern function rc_keyup [2022-12-14 11:37:36,307 WARN L623 FunctionHandler]: Unknown extern function rc_keydown [2022-12-14 11:37:36,308 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 11:37:36,309 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 11:37:36,309 WARN L623 FunctionHandler]: Unknown extern function do_gettimeofday [2022-12-14 11:37:36,311 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 11:37:36,311 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 11:37:36,314 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 11:37:36,317 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 11:37:36,317 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-14 11:37:36,319 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 11:37:36,320 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-14 11:37:36,324 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 11:37:36,324 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 11:37:36,324 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 11:37:36,325 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 11:37:36,325 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 11:37:36,332 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 11:37:36,333 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 11:37:36,333 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:37:36,338 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 11:37:36,342 WARN L623 FunctionHandler]: Unknown extern function rc_allocate_device [2022-12-14 11:37:36,343 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 11:37:36,344 WARN L623 FunctionHandler]: Unknown extern function strlcat [2022-12-14 11:37:36,346 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 11:37:36,347 WARN L623 FunctionHandler]: Unknown extern function rc_register_device [2022-12-14 11:37:36,348 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 11:37:36,348 WARN L623 FunctionHandler]: Unknown extern function rc_free_device [2022-12-14 11:37:36,351 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 11:37:36,352 WARN L623 FunctionHandler]: Unknown extern function strlcat [2022-12-14 11:37:36,355 WARN L623 FunctionHandler]: Unknown extern function input_register_device [2022-12-14 11:37:36,355 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 11:37:36,356 WARN L623 FunctionHandler]: Unknown extern function input_free_device [2022-12-14 11:37:36,359 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 11:37:36,360 WARN L623 FunctionHandler]: Unknown extern function strlcat [2022-12-14 11:37:36,361 WARN L623 FunctionHandler]: Unknown extern function input_set_abs_params [2022-12-14 11:37:36,361 WARN L623 FunctionHandler]: Unknown extern function input_set_abs_params [2022-12-14 11:37:36,362 WARN L623 FunctionHandler]: Unknown extern function input_register_device [2022-12-14 11:37:36,363 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 11:37:36,363 WARN L623 FunctionHandler]: Unknown extern function input_free_device [2022-12-14 11:37:36,371 WARN L623 FunctionHandler]: Unknown extern function dev_printk [2022-12-14 11:37:36,373 WARN L623 FunctionHandler]: Unknown extern function dev_printk [2022-12-14 11:37:36,376 WARN L623 FunctionHandler]: Unknown extern function dev_printk [2022-12-14 11:37:36,378 WARN L623 FunctionHandler]: Unknown extern function dev_printk [2022-12-14 11:37:36,380 WARN L623 FunctionHandler]: Unknown extern function dev_printk [2022-12-14 11:37:36,381 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:37:36,386 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 11:37:36,387 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_urb [2022-12-14 11:37:36,387 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 11:37:36,388 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_urb [2022-12-14 11:37:36,388 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 11:37:36,388 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-14 11:37:36,389 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 11:37:36,390 WARN L623 FunctionHandler]: Unknown extern function usb_get_dev [2022-12-14 11:37:36,391 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-14 11:37:36,392 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:37:36,393 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 11:37:36,393 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 11:37:36,394 WARN L623 FunctionHandler]: Unknown extern function input_unregister_device [2022-12-14 11:37:36,394 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-14 11:37:36,394 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-12-14 11:37:36,394 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-12-14 11:37:36,395 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 11:37:36,395 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 11:37:36,399 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_urb [2022-12-14 11:37:36,399 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:37:36,400 WARN L623 FunctionHandler]: Unknown extern function usb_get_dev [2022-12-14 11:37:36,402 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-14 11:37:36,402 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:37:36,403 WARN L623 FunctionHandler]: Unknown extern function input_unregister_device [2022-12-14 11:37:36,404 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-12-14 11:37:36,404 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 11:37:36,408 WARN L623 FunctionHandler]: Unknown extern function dev_printk [2022-12-14 11:37:36,409 WARN L623 FunctionHandler]: Unknown extern function sysfs_create_group [2022-12-14 11:37:36,410 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 11:37:36,410 WARN L623 FunctionHandler]: Unknown extern function usb_register_dev [2022-12-14 11:37:36,411 WARN L623 FunctionHandler]: Unknown extern function usb_register_dev [2022-12-14 11:37:36,411 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 11:37:36,412 WARN L623 FunctionHandler]: Unknown extern function usb_get_dev [2022-12-14 11:37:36,414 WARN L623 FunctionHandler]: Unknown extern function dev_printk [2022-12-14 11:37:36,415 WARN L623 FunctionHandler]: Unknown extern function usb_ifnum_to_if [2022-12-14 11:37:36,415 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:37:36,416 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:37:36,417 WARN L623 FunctionHandler]: Unknown extern function sysfs_create_group [2022-12-14 11:37:36,417 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:37:36,417 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 11:37:36,421 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 11:37:36,422 WARN L623 FunctionHandler]: Unknown extern function sysfs_remove_group [2022-12-14 11:37:36,422 WARN L623 FunctionHandler]: Unknown extern function sysfs_remove_group [2022-12-14 11:37:36,422 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-14 11:37:36,423 WARN L623 FunctionHandler]: Unknown extern function complete_all [2022-12-14 11:37:36,423 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-14 11:37:36,423 WARN L623 FunctionHandler]: Unknown extern function input_unregister_device [2022-12-14 11:37:36,423 WARN L623 FunctionHandler]: Unknown extern function rc_unregister_device [2022-12-14 11:37:36,424 WARN L623 FunctionHandler]: Unknown extern function usb_deregister_dev [2022-12-14 11:37:36,424 WARN L623 FunctionHandler]: Unknown extern function usb_deregister_dev [2022-12-14 11:37:36,425 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-14 11:37:36,425 WARN L623 FunctionHandler]: Unknown extern function input_unregister_device [2022-12-14 11:37:36,427 WARN L623 FunctionHandler]: Unknown extern function dev_printk [2022-12-14 11:37:36,428 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-14 11:37:36,429 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-14 11:37:36,430 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-14 11:37:36,431 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-14 11:37:36,434 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:37:36,452 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 11:37:36,454 WARN L623 FunctionHandler]: Unknown extern function noop_llseek [2022-12-14 11:37:36,456 WARN L623 FunctionHandler]: Unknown extern function ldv_reset_resume_4 [2022-12-14 11:37:36,460 WARN L623 FunctionHandler]: Unknown extern function noop_llseek [2022-12-14 11:37:36,461 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-12-14 11:37:36,462 WARN L623 FunctionHandler]: Unknown extern function del_timer [2022-12-14 11:37:36,462 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 11:37:36,463 WARN L623 FunctionHandler]: Unknown extern function mutex_trylock [2022-12-14 11:37:36,463 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 11:37:36,464 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-12-14 11:37:36,464 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 11:37:36,465 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 11:37:36,465 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 11:37:36,465 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 11:37:36,466 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 11:37:36,466 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 11:37:36,466 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 11:37:36,466 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 11:37:36,467 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 11:37:36,467 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 11:37:36,467 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 11:37:36,468 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 11:37:36,468 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 11:37:36,468 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 11:37:36,469 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 11:37:36,469 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 11:37:36,469 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 11:37:36,469 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 11:37:36,470 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 11:37:36,470 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 11:37:36,470 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 11:37:36,471 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-12-14 11:37:36,471 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 11:37:36,471 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 11:37:36,471 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 11:37:36,471 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 11:37:36,472 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 11:37:36,472 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 11:37:36,472 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 11:37:36,472 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 11:37:36,472 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 11:37:36,473 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 11:37:36,473 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-12-14 11:37:36,473 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 11:37:36,474 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 11:37:36,474 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 11:37:36,474 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-12-14 11:37:36,477 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_145375f9-bcb9-48fb-b8fc-b451c47dc12c/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-a9e7fb5-1-32_7a-drivers--media--rc--imon.ko-entry_point_ldv-val-v0.8.cil.out.i[212825,212838] [2022-12-14 11:37:36,571 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:37:36,577 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:37:36,581 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:37:36,581 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:37:36,582 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:37:36,582 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:37:36,587 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:37:36,617 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 11:37:36,667 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 11:37:36,672 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-14 11:37:36,673 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-12-14 11:37:36,674 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:37:36,675 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 11:37:36,676 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-12-14 11:37:36,676 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_fmt [2022-12-14 11:37:36,678 WARN L623 FunctionHandler]: Unknown extern function dev_set_drvdata [2022-12-14 11:37:36,679 WARN L623 FunctionHandler]: Unknown extern function input_event [2022-12-14 11:37:36,679 WARN L623 FunctionHandler]: Unknown extern function input_event [2022-12-14 11:37:36,679 WARN L623 FunctionHandler]: Unknown extern function input_event [2022-12-14 11:37:36,680 WARN L623 FunctionHandler]: Unknown extern function input_event [2022-12-14 11:37:36,680 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-12-14 11:37:36,680 WARN L623 FunctionHandler]: Unknown extern function dev_set_drvdata [2022-12-14 11:37:36,707 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-12-14 11:37:36,708 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-12-14 11:37:36,708 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-12-14 11:37:36,708 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 11:37:36,709 WARN L623 FunctionHandler]: Unknown extern function dev_printk [2022-12-14 11:37:36,710 WARN L623 FunctionHandler]: Unknown extern function usb_find_interface [2022-12-14 11:37:36,711 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:37:36,711 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:37:36,711 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:37:36,712 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:37:36,713 WARN L623 FunctionHandler]: Unknown extern function dev_printk [2022-12-14 11:37:36,714 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:37:36,715 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:37:36,715 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:37:36,716 WARN L623 FunctionHandler]: Unknown extern function dev_printk [2022-12-14 11:37:36,720 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-14 11:37:36,720 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:37:36,720 WARN L623 FunctionHandler]: Unknown extern function wait_for_completion_interruptible [2022-12-14 11:37:36,721 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:37:36,721 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:37:36,721 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 11:37:36,722 WARN L623 FunctionHandler]: Unknown extern function msecs_to_jiffies [2022-12-14 11:37:36,723 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-14 11:37:36,723 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout [2022-12-14 11:37:36,725 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:37:36,725 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:37:36,726 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:37:36,731 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:37:36,731 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-12-14 11:37:36,732 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 11:37:36,733 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-12-14 11:37:36,734 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-12-14 11:37:36,736 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-12-14 11:37:36,740 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:37:36,740 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:37:36,740 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:37:36,742 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:37:36,743 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:37:36,743 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:37:36,744 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:37:36,744 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:37:36,745 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:37:36,745 WARN L623 FunctionHandler]: Unknown extern function dev_printk [2022-12-14 11:37:36,746 WARN L623 FunctionHandler]: Unknown extern function complete [2022-12-14 11:37:36,748 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 11:37:36,749 WARN L623 FunctionHandler]: Unknown extern function dev_printk [2022-12-14 11:37:36,750 WARN L623 FunctionHandler]: Unknown extern function dev_printk [2022-12-14 11:37:36,752 WARN L623 FunctionHandler]: Unknown extern function dev_printk [2022-12-14 11:37:36,752 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 11:37:36,753 WARN L623 FunctionHandler]: Unknown extern function dev_printk [2022-12-14 11:37:36,755 WARN L623 FunctionHandler]: Unknown extern function do_gettimeofday [2022-12-14 11:37:36,757 WARN L623 FunctionHandler]: Unknown extern function rc_g_keycode_from_table [2022-12-14 11:37:36,758 WARN L623 FunctionHandler]: Unknown extern function rc_g_keycode_from_table [2022-12-14 11:37:36,758 WARN L623 FunctionHandler]: Unknown extern function rc_g_keycode_from_table [2022-12-14 11:37:36,760 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 11:37:36,767 WARN L623 FunctionHandler]: Unknown extern function dev_printk [2022-12-14 11:37:36,768 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 11:37:36,776 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 11:37:36,783 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 11:37:36,784 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 11:37:36,790 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 11:37:36,793 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 11:37:36,794 WARN L623 FunctionHandler]: Unknown extern function dev_printk [2022-12-14 11:37:36,796 WARN L623 FunctionHandler]: Unknown extern function dev_printk [2022-12-14 11:37:36,798 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:37:36,798 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:37:36,799 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:37:36,799 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 11:37:36,800 WARN L623 FunctionHandler]: Unknown extern function rc_keyup [2022-12-14 11:37:36,800 WARN L623 FunctionHandler]: Unknown extern function rc_keydown [2022-12-14 11:37:36,801 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 11:37:36,801 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 11:37:36,801 WARN L623 FunctionHandler]: Unknown extern function do_gettimeofday [2022-12-14 11:37:36,802 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 11:37:36,802 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 11:37:36,803 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 11:37:36,805 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 11:37:36,805 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-14 11:37:36,806 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 11:37:36,807 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-14 11:37:36,807 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 11:37:36,808 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 11:37:36,808 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 11:37:36,808 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 11:37:36,809 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 11:37:36,809 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 11:37:36,809 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 11:37:36,810 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:37:36,811 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 11:37:36,812 WARN L623 FunctionHandler]: Unknown extern function rc_allocate_device [2022-12-14 11:37:36,812 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 11:37:36,813 WARN L623 FunctionHandler]: Unknown extern function strlcat [2022-12-14 11:37:36,816 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 11:37:36,816 WARN L623 FunctionHandler]: Unknown extern function rc_register_device [2022-12-14 11:37:36,817 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 11:37:36,817 WARN L623 FunctionHandler]: Unknown extern function rc_free_device [2022-12-14 11:37:36,817 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 11:37:36,818 WARN L623 FunctionHandler]: Unknown extern function strlcat [2022-12-14 11:37:36,819 WARN L623 FunctionHandler]: Unknown extern function input_register_device [2022-12-14 11:37:36,820 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 11:37:36,820 WARN L623 FunctionHandler]: Unknown extern function input_free_device [2022-12-14 11:37:36,820 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 11:37:36,821 WARN L623 FunctionHandler]: Unknown extern function strlcat [2022-12-14 11:37:36,821 WARN L623 FunctionHandler]: Unknown extern function input_set_abs_params [2022-12-14 11:37:36,821 WARN L623 FunctionHandler]: Unknown extern function input_set_abs_params [2022-12-14 11:37:36,822 WARN L623 FunctionHandler]: Unknown extern function input_register_device [2022-12-14 11:37:36,822 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 11:37:36,823 WARN L623 FunctionHandler]: Unknown extern function input_free_device [2022-12-14 11:37:36,825 WARN L623 FunctionHandler]: Unknown extern function dev_printk [2022-12-14 11:37:36,826 WARN L623 FunctionHandler]: Unknown extern function dev_printk [2022-12-14 11:37:36,827 WARN L623 FunctionHandler]: Unknown extern function dev_printk [2022-12-14 11:37:36,828 WARN L623 FunctionHandler]: Unknown extern function dev_printk [2022-12-14 11:37:36,829 WARN L623 FunctionHandler]: Unknown extern function dev_printk [2022-12-14 11:37:36,829 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:37:36,830 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 11:37:36,830 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_urb [2022-12-14 11:37:36,831 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 11:37:36,831 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_urb [2022-12-14 11:37:36,831 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 11:37:36,831 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-14 11:37:36,831 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 11:37:36,832 WARN L623 FunctionHandler]: Unknown extern function usb_get_dev [2022-12-14 11:37:36,832 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-14 11:37:36,833 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:37:36,833 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 11:37:36,833 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 11:37:36,833 WARN L623 FunctionHandler]: Unknown extern function input_unregister_device [2022-12-14 11:37:36,834 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-14 11:37:36,834 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-12-14 11:37:36,834 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-12-14 11:37:36,834 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 11:37:36,834 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 11:37:36,835 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_urb [2022-12-14 11:37:36,835 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:37:36,836 WARN L623 FunctionHandler]: Unknown extern function usb_get_dev [2022-12-14 11:37:36,837 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-14 11:37:36,837 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:37:36,838 WARN L623 FunctionHandler]: Unknown extern function input_unregister_device [2022-12-14 11:37:36,838 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-12-14 11:37:36,838 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 11:37:36,839 WARN L623 FunctionHandler]: Unknown extern function dev_printk [2022-12-14 11:37:36,840 WARN L623 FunctionHandler]: Unknown extern function sysfs_create_group [2022-12-14 11:37:36,840 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 11:37:36,840 WARN L623 FunctionHandler]: Unknown extern function usb_register_dev [2022-12-14 11:37:36,840 WARN L623 FunctionHandler]: Unknown extern function usb_register_dev [2022-12-14 11:37:36,840 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 11:37:36,842 WARN L623 FunctionHandler]: Unknown extern function usb_get_dev [2022-12-14 11:37:36,843 WARN L623 FunctionHandler]: Unknown extern function dev_printk [2022-12-14 11:37:36,844 WARN L623 FunctionHandler]: Unknown extern function usb_ifnum_to_if [2022-12-14 11:37:36,844 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:37:36,844 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:37:36,845 WARN L623 FunctionHandler]: Unknown extern function sysfs_create_group [2022-12-14 11:37:36,845 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:37:36,845 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 11:37:36,848 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 11:37:36,849 WARN L623 FunctionHandler]: Unknown extern function sysfs_remove_group [2022-12-14 11:37:36,849 WARN L623 FunctionHandler]: Unknown extern function sysfs_remove_group [2022-12-14 11:37:36,850 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-14 11:37:36,850 WARN L623 FunctionHandler]: Unknown extern function complete_all [2022-12-14 11:37:36,850 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-14 11:37:36,850 WARN L623 FunctionHandler]: Unknown extern function input_unregister_device [2022-12-14 11:37:36,850 WARN L623 FunctionHandler]: Unknown extern function rc_unregister_device [2022-12-14 11:37:36,851 WARN L623 FunctionHandler]: Unknown extern function usb_deregister_dev [2022-12-14 11:37:36,851 WARN L623 FunctionHandler]: Unknown extern function usb_deregister_dev [2022-12-14 11:37:36,851 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-14 11:37:36,851 WARN L623 FunctionHandler]: Unknown extern function input_unregister_device [2022-12-14 11:37:36,852 WARN L623 FunctionHandler]: Unknown extern function dev_printk [2022-12-14 11:37:36,853 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-14 11:37:36,853 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-14 11:37:36,855 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-14 11:37:36,855 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-14 11:37:36,856 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:37:36,879 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 11:37:36,880 WARN L623 FunctionHandler]: Unknown extern function noop_llseek [2022-12-14 11:37:36,882 WARN L623 FunctionHandler]: Unknown extern function ldv_reset_resume_4 [2022-12-14 11:37:36,885 WARN L623 FunctionHandler]: Unknown extern function noop_llseek [2022-12-14 11:37:36,886 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-12-14 11:37:36,886 WARN L623 FunctionHandler]: Unknown extern function del_timer [2022-12-14 11:37:36,886 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 11:37:36,887 WARN L623 FunctionHandler]: Unknown extern function mutex_trylock [2022-12-14 11:37:36,887 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 11:37:36,887 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-12-14 11:37:36,887 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 11:37:36,888 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 11:37:36,888 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 11:37:36,888 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 11:37:36,888 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 11:37:36,888 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 11:37:36,888 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 11:37:36,889 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 11:37:36,889 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 11:37:36,889 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 11:37:36,889 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 11:37:36,889 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 11:37:36,889 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 11:37:36,890 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 11:37:36,890 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 11:37:36,890 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 11:37:36,890 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 11:37:36,890 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 11:37:36,890 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 11:37:36,891 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 11:37:36,891 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 11:37:36,891 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-12-14 11:37:36,891 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 11:37:36,891 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 11:37:36,892 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 11:37:36,892 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 11:37:36,892 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 11:37:36,892 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 11:37:36,893 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 11:37:36,893 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 11:37:36,893 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 11:37:36,893 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 11:37:36,893 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-12-14 11:37:36,894 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 11:37:36,894 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 11:37:36,894 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 11:37:36,894 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-12-14 11:37:36,894 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_145375f9-bcb9-48fb-b8fc-b451c47dc12c/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-a9e7fb5-1-32_7a-drivers--media--rc--imon.ko-entry_point_ldv-val-v0.8.cil.out.i[212825,212838] [2022-12-14 11:37:36,902 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:37:36,904 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:37:36,905 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:37:36,905 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:37:36,905 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:37:36,906 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:37:36,906 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:37:36,966 INFO L208 MainTranslator]: Completed translation [2022-12-14 11:37:36,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:37:36 WrapperNode [2022-12-14 11:37:36,967 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 11:37:36,968 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 11:37:36,968 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 11:37:36,968 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 11:37:36,974 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:37:36" (1/1) ... [2022-12-14 11:37:37,036 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:37:36" (1/1) ... [2022-12-14 11:37:37,140 INFO L138 Inliner]: procedures = 272, calls = 2499, calls flagged for inlining = 116, calls inlined = 95, statements flattened = 4020 [2022-12-14 11:37:37,140 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 11:37:37,141 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 11:37:37,141 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 11:37:37,141 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 11:37:37,148 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:37:36" (1/1) ... [2022-12-14 11:37:37,148 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:37:36" (1/1) ... [2022-12-14 11:37:37,166 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:37:36" (1/1) ... [2022-12-14 11:37:37,166 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:37:36" (1/1) ... [2022-12-14 11:37:37,243 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:37:36" (1/1) ... [2022-12-14 11:37:37,255 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:37:36" (1/1) ... [2022-12-14 11:37:37,273 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:37:36" (1/1) ... [2022-12-14 11:37:37,283 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:37:36" (1/1) ... [2022-12-14 11:37:37,303 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 11:37:37,304 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 11:37:37,304 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 11:37:37,304 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 11:37:37,305 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:37:36" (1/1) ... [2022-12-14 11:37:37,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:37:37,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_145375f9-bcb9-48fb-b8fc-b451c47dc12c/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:37:37,329 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_145375f9-bcb9-48fb-b8fc-b451c47dc12c/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 11:37:37,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_145375f9-bcb9-48fb-b8fc-b451c47dc12c/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 11:37:37,369 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-12-14 11:37:37,369 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-12-14 11:37:37,369 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2022-12-14 11:37:37,369 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2022-12-14 11:37:37,369 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2022-12-14 11:37:37,369 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2022-12-14 11:37:37,369 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-12-14 11:37:37,369 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-12-14 11:37:37,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-14 11:37:37,370 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-12-14 11:37:37,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-12-14 11:37:37,370 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-12-14 11:37:37,370 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-12-14 11:37:37,370 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_dev [2022-12-14 11:37:37,370 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_dev [2022-12-14 11:37:37,370 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-12-14 11:37:37,370 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-12-14 11:37:37,370 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2022-12-14 11:37:37,370 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2022-12-14 11:37:37,370 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-14 11:37:37,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-14 11:37:37,371 INFO L130 BoogieDeclarations]: Found specification of procedure send_packet [2022-12-14 11:37:37,371 INFO L138 BoogieDeclarations]: Found implementation of procedure send_packet [2022-12-14 11:37:37,371 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2022-12-14 11:37:37,371 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2022-12-14 11:37:37,371 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-12-14 11:37:37,371 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-12-14 11:37:37,371 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-12-14 11:37:37,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-12-14 11:37:37,371 INFO L130 BoogieDeclarations]: Found specification of procedure imon_disconnect [2022-12-14 11:37:37,371 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_disconnect [2022-12-14 11:37:37,371 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister_dev [2022-12-14 11:37:37,371 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister_dev [2022-12-14 11:37:37,372 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_imon_context [2022-12-14 11:37:37,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_imon_context [2022-12-14 11:37:37,372 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-14 11:37:37,372 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-14 11:37:37,372 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-12-14 11:37:37,372 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-12-14 11:37:37,372 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-12-14 11:37:37,372 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-12-14 11:37:37,372 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_driver_lock [2022-12-14 11:37:37,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_driver_lock [2022-12-14 11:37:37,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 11:37:37,372 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2022-12-14 11:37:37,372 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2022-12-14 11:37:37,372 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 11:37:37,372 INFO L130 BoogieDeclarations]: Found specification of procedure input_allocate_device [2022-12-14 11:37:37,372 INFO L138 BoogieDeclarations]: Found implementation of procedure input_allocate_device [2022-12-14 11:37:37,372 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2022-12-14 11:37:37,372 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2022-12-14 11:37:37,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 11:37:37,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 11:37:37,372 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-12-14 11:37:37,372 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-12-14 11:37:37,372 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-12-14 11:37:37,373 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-12-14 11:37:37,373 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-12-14 11:37:37,373 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-12-14 11:37:37,373 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_drvdata [2022-12-14 11:37:37,373 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_drvdata [2022-12-14 11:37:37,373 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2022-12-14 11:37:37,373 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2022-12-14 11:37:37,373 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2022-12-14 11:37:37,373 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2022-12-14 11:37:37,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-12-14 11:37:37,373 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_abs [2022-12-14 11:37:37,373 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_abs [2022-12-14 11:37:37,373 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-12-14 11:37:37,373 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-12-14 11:37:37,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 11:37:37,373 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_device [2022-12-14 11:37:37,373 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_device [2022-12-14 11:37:37,373 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_create_group [2022-12-14 11:37:37,373 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_create_group [2022-12-14 11:37:37,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 11:37:37,373 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-12-14 11:37:37,373 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-12-14 11:37:37,374 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2022-12-14 11:37:37,374 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2022-12-14 11:37:37,374 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-12-14 11:37:37,374 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-12-14 11:37:37,374 INFO L130 BoogieDeclarations]: Found specification of procedure lcd_write [2022-12-14 11:37:37,374 INFO L138 BoogieDeclarations]: Found implementation of procedure lcd_write [2022-12-14 11:37:37,374 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-12-14 11:37:37,374 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-12-14 11:37:37,374 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-12-14 11:37:37,374 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-12-14 11:37:37,374 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2022-12-14 11:37:37,374 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2022-12-14 11:37:37,374 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-12-14 11:37:37,374 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-12-14 11:37:37,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 11:37:37,374 INFO L130 BoogieDeclarations]: Found specification of procedure usb_to_input_id [2022-12-14 11:37:37,374 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_to_input_id [2022-12-14 11:37:37,374 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2022-12-14 11:37:37,374 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2022-12-14 11:37:37,374 INFO L130 BoogieDeclarations]: Found specification of procedure noop_llseek [2022-12-14 11:37:37,374 INFO L138 BoogieDeclarations]: Found implementation of procedure noop_llseek [2022-12-14 11:37:37,374 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-12-14 11:37:37,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-12-14 11:37:37,375 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-12-14 11:37:37,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-12-14 11:37:37,375 INFO L130 BoogieDeclarations]: Found specification of procedure free_imon_context [2022-12-14 11:37:37,375 INFO L138 BoogieDeclarations]: Found implementation of procedure free_imon_context [2022-12-14 11:37:37,375 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 11:37:37,375 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2022-12-14 11:37:37,375 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2022-12-14 11:37:37,375 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-12-14 11:37:37,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-12-14 11:37:37,375 INFO L130 BoogieDeclarations]: Found specification of procedure input_register_device [2022-12-14 11:37:37,375 INFO L138 BoogieDeclarations]: Found implementation of procedure input_register_device [2022-12-14 11:37:37,375 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_imon_context [2022-12-14 11:37:37,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_imon_context [2022-12-14 11:37:37,375 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-12-14 11:37:37,375 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-12-14 11:37:37,375 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 11:37:37,375 INFO L130 BoogieDeclarations]: Found specification of procedure vfd_write [2022-12-14 11:37:37,375 INFO L138 BoogieDeclarations]: Found implementation of procedure vfd_write [2022-12-14 11:37:37,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 11:37:37,375 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2022-12-14 11:37:37,375 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2022-12-14 11:37:37,375 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-12-14 11:37:37,376 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2022-12-14 11:37:37,376 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2022-12-14 11:37:37,376 INFO L130 BoogieDeclarations]: Found specification of procedure display_close [2022-12-14 11:37:37,376 INFO L138 BoogieDeclarations]: Found implementation of procedure display_close [2022-12-14 11:37:37,376 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_dev [2022-12-14 11:37:37,376 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_dev [2022-12-14 11:37:37,376 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-12-14 11:37:37,376 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-12-14 11:37:37,376 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_driver_lock [2022-12-14 11:37:37,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_driver_lock [2022-12-14 11:37:37,376 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2022-12-14 11:37:37,376 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2022-12-14 11:37:37,376 INFO L130 BoogieDeclarations]: Found specification of procedure imon_find_endpoints [2022-12-14 11:37:37,376 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_find_endpoints [2022-12-14 11:37:37,376 INFO L130 BoogieDeclarations]: Found specification of procedure display_open [2022-12-14 11:37:37,376 INFO L138 BoogieDeclarations]: Found implementation of procedure display_open [2022-12-14 11:37:37,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 11:37:37,376 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2022-12-14 11:37:37,376 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2022-12-14 11:37:37,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 11:37:37,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 11:37:37,798 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 11:37:37,800 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 11:37:38,137 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-12-14 11:37:42,175 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 11:37:42,695 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 11:37:42,695 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-12-14 11:37:42,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:37:42 BoogieIcfgContainer [2022-12-14 11:37:42,698 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 11:37:42,700 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 11:37:42,700 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 11:37:42,702 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 11:37:42,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 11:37:34" (1/3) ... [2022-12-14 11:37:42,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ad84290 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:37:42, skipping insertion in model container [2022-12-14 11:37:42,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:37:36" (2/3) ... [2022-12-14 11:37:42,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ad84290 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:37:42, skipping insertion in model container [2022-12-14 11:37:42,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:37:42" (3/3) ... [2022-12-14 11:37:42,704 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-stable-a9e7fb5-1-32_7a-drivers--media--rc--imon.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-12-14 11:37:42,720 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 11:37:42,720 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 11:37:42,775 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 11:37:42,780 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;@607540bc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 11:37:42,781 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 11:37:42,788 INFO L276 IsEmpty]: Start isEmpty. Operand has 886 states, 541 states have (on average 1.343807763401109) internal successors, (727), 563 states have internal predecessors, (727), 281 states have call successors, (281), 63 states have call predecessors, (281), 62 states have return successors, (274), 273 states have call predecessors, (274), 274 states have call successors, (274) [2022-12-14 11:37:42,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-12-14 11:37:42,805 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:37:42,806 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:37:42,807 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:37:42,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:37:42,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1844440263, now seen corresponding path program 1 times [2022-12-14 11:37:42,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:37:42,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499271878] [2022-12-14 11:37:42,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:37:42,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:37:43,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:37:43,473 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked. [2022-12-14 11:37:43,473 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:37:43,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499271878] [2022-12-14 11:37:43,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499271878] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:37:43,474 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:37:43,474 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 11:37:43,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818172807] [2022-12-14 11:37:43,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:37:43,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:37:43,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:37:43,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:37:43,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:37:43,505 INFO L87 Difference]: Start difference. First operand has 886 states, 541 states have (on average 1.343807763401109) internal successors, (727), 563 states have internal predecessors, (727), 281 states have call successors, (281), 63 states have call predecessors, (281), 62 states have return successors, (274), 273 states have call predecessors, (274), 274 states have call successors, (274) Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2022-12-14 11:37:45,574 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 11:37:50,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:37:50,218 INFO L93 Difference]: Finished difference Result 2513 states and 3728 transitions. [2022-12-14 11:37:50,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:37:50,224 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 167 [2022-12-14 11:37:50,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:37:50,239 INFO L225 Difference]: With dead ends: 2513 [2022-12-14 11:37:50,240 INFO L226 Difference]: Without dead ends: 1648 [2022-12-14 11:37:50,246 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 11:37:50,248 INFO L413 NwaCegarLoop]: 1379 mSDtfsCounter, 1111 mSDsluCounter, 1128 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1111 SdHoareTripleChecker+Valid, 2507 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-12-14 11:37:50,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1111 Valid, 2507 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 273 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2022-12-14 11:37:50,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1648 states. [2022-12-14 11:37:50,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1648 to 1634. [2022-12-14 11:37:50,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1634 states, 1008 states have (on average 1.3263888888888888) internal successors, (1337), 1029 states have internal predecessors, (1337), 505 states have call successors, (505), 121 states have call predecessors, (505), 120 states have return successors, (498), 495 states have call predecessors, (498), 498 states have call successors, (498) [2022-12-14 11:37:50,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1634 states to 1634 states and 2340 transitions. [2022-12-14 11:37:50,381 INFO L78 Accepts]: Start accepts. Automaton has 1634 states and 2340 transitions. Word has length 167 [2022-12-14 11:37:50,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:37:50,382 INFO L495 AbstractCegarLoop]: Abstraction has 1634 states and 2340 transitions. [2022-12-14 11:37:50,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2022-12-14 11:37:50,382 INFO L276 IsEmpty]: Start isEmpty. Operand 1634 states and 2340 transitions. [2022-12-14 11:37:50,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-12-14 11:37:50,384 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:37:50,384 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:37:50,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 11:37:50,385 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:37:50,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:37:50,385 INFO L85 PathProgramCache]: Analyzing trace with hash -1329037681, now seen corresponding path program 1 times [2022-12-14 11:37:50,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:37:50,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390950432] [2022-12-14 11:37:50,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:37:50,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:37:50,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:37:50,683 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked. [2022-12-14 11:37:50,683 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:37:50,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390950432] [2022-12-14 11:37:50,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390950432] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:37:50,684 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:37:50,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 11:37:50,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277531957] [2022-12-14 11:37:50,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:37:50,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:37:50,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:37:50,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:37:50,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:37:50,686 INFO L87 Difference]: Start difference. First operand 1634 states and 2340 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2022-12-14 11:37:54,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:37:54,422 INFO L93 Difference]: Finished difference Result 4015 states and 5739 transitions. [2022-12-14 11:37:54,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:37:54,427 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 168 [2022-12-14 11:37:54,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:37:54,436 INFO L225 Difference]: With dead ends: 4015 [2022-12-14 11:37:54,436 INFO L226 Difference]: Without dead ends: 2421 [2022-12-14 11:37:54,441 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 11:37:54,441 INFO L413 NwaCegarLoop]: 1289 mSDtfsCounter, 666 mSDsluCounter, 1060 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 666 SdHoareTripleChecker+Valid, 2349 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-12-14 11:37:54,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [666 Valid, 2349 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-12-14 11:37:54,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2421 states. [2022-12-14 11:37:54,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2421 to 2408. [2022-12-14 11:37:54,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2408 states, 1515 states have (on average 1.3425742574257427) internal successors, (2034), 1536 states have internal predecessors, (2034), 707 states have call successors, (707), 186 states have call predecessors, (707), 185 states have return successors, (700), 697 states have call predecessors, (700), 700 states have call successors, (700) [2022-12-14 11:37:54,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2408 states to 2408 states and 3441 transitions. [2022-12-14 11:37:54,525 INFO L78 Accepts]: Start accepts. Automaton has 2408 states and 3441 transitions. Word has length 168 [2022-12-14 11:37:54,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:37:54,526 INFO L495 AbstractCegarLoop]: Abstraction has 2408 states and 3441 transitions. [2022-12-14 11:37:54,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2022-12-14 11:37:54,526 INFO L276 IsEmpty]: Start isEmpty. Operand 2408 states and 3441 transitions. [2022-12-14 11:37:54,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-12-14 11:37:54,527 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:37:54,527 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:37:54,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 11:37:54,528 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:37:54,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:37:54,528 INFO L85 PathProgramCache]: Analyzing trace with hash 1665047464, now seen corresponding path program 1 times [2022-12-14 11:37:54,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:37:54,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130937674] [2022-12-14 11:37:54,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:37:54,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:37:54,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:37:54,868 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked. [2022-12-14 11:37:54,869 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:37:54,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130937674] [2022-12-14 11:37:54,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130937674] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:37:54,869 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:37:54,869 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 11:37:54,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988984230] [2022-12-14 11:37:54,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:37:54,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:37:54,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:37:54,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:37:54,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:37:54,872 INFO L87 Difference]: Start difference. First operand 2408 states and 3441 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2022-12-14 11:37:56,206 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 11:37:58,221 WARN L539 Checker$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 11:38:00,496 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 11:38:03,198 WARN L539 Checker$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 11:38:04,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:38:04,792 INFO L93 Difference]: Finished difference Result 7087 states and 10129 transitions. [2022-12-14 11:38:04,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:38:04,797 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 166 [2022-12-14 11:38:04,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:38:04,820 INFO L225 Difference]: With dead ends: 7087 [2022-12-14 11:38:04,820 INFO L226 Difference]: Without dead ends: 4727 [2022-12-14 11:38:04,829 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 11:38:04,829 INFO L413 NwaCegarLoop]: 1444 mSDtfsCounter, 1153 mSDsluCounter, 1119 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1153 SdHoareTripleChecker+Valid, 2563 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2022-12-14 11:38:04,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1153 Valid, 2563 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 265 Invalid, 2 Unknown, 0 Unchecked, 9.7s Time] [2022-12-14 11:38:04,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4727 states. [2022-12-14 11:38:05,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4727 to 4719. [2022-12-14 11:38:05,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4719 states, 2980 states have (on average 1.342281879194631) internal successors, (4000), 3015 states have internal predecessors, (4000), 1371 states have call successors, (1371), 368 states have call predecessors, (1371), 367 states have return successors, (1364), 1359 states have call predecessors, (1364), 1364 states have call successors, (1364) [2022-12-14 11:38:05,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4719 states to 4719 states and 6735 transitions. [2022-12-14 11:38:05,050 INFO L78 Accepts]: Start accepts. Automaton has 4719 states and 6735 transitions. Word has length 166 [2022-12-14 11:38:05,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:38:05,051 INFO L495 AbstractCegarLoop]: Abstraction has 4719 states and 6735 transitions. [2022-12-14 11:38:05,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2022-12-14 11:38:05,051 INFO L276 IsEmpty]: Start isEmpty. Operand 4719 states and 6735 transitions. [2022-12-14 11:38:05,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-12-14 11:38:05,054 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:38:05,055 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:38:05,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 11:38:05,055 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:38:05,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:38:05,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1797714113, now seen corresponding path program 1 times [2022-12-14 11:38:05,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:38:05,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009536062] [2022-12-14 11:38:05,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:38:05,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:38:05,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:38:05,438 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked. [2022-12-14 11:38:05,438 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:38:05,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009536062] [2022-12-14 11:38:05,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009536062] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:38:05,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:38:05,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 11:38:05,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044922825] [2022-12-14 11:38:05,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:38:05,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:38:05,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:38:05,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:38:05,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:38:05,440 INFO L87 Difference]: Start difference. First operand 4719 states and 6735 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2022-12-14 11:38:07,481 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 11:38:11,280 WARN L539 Checker$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 11:38:13,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:38:13,067 INFO L93 Difference]: Finished difference Result 13389 states and 19074 transitions. [2022-12-14 11:38:13,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:38:13,073 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 173 [2022-12-14 11:38:13,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:38:13,111 INFO L225 Difference]: With dead ends: 13389 [2022-12-14 11:38:13,111 INFO L226 Difference]: Without dead ends: 8718 [2022-12-14 11:38:13,124 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 11:38:13,125 INFO L413 NwaCegarLoop]: 1490 mSDtfsCounter, 1097 mSDsluCounter, 1111 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1097 SdHoareTripleChecker+Valid, 2601 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-12-14 11:38:13,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1097 Valid, 2601 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 286 Invalid, 2 Unknown, 0 Unchecked, 7.4s Time] [2022-12-14 11:38:13,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8718 states. [2022-12-14 11:38:13,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8718 to 8705. [2022-12-14 11:38:13,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8705 states, 5512 states have (on average 1.3403483309143687) internal successors, (7388), 5575 states have internal predecessors, (7388), 2501 states have call successors, (2501), 692 states have call predecessors, (2501), 691 states have return successors, (2494), 2485 states have call predecessors, (2494), 2494 states have call successors, (2494) [2022-12-14 11:38:13,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8705 states to 8705 states and 12383 transitions. [2022-12-14 11:38:13,535 INFO L78 Accepts]: Start accepts. Automaton has 8705 states and 12383 transitions. Word has length 173 [2022-12-14 11:38:13,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:38:13,536 INFO L495 AbstractCegarLoop]: Abstraction has 8705 states and 12383 transitions. [2022-12-14 11:38:13,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2022-12-14 11:38:13,536 INFO L276 IsEmpty]: Start isEmpty. Operand 8705 states and 12383 transitions. [2022-12-14 11:38:13,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-12-14 11:38:13,538 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:38:13,539 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:38:13,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 11:38:13,539 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:38:13,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:38:13,540 INFO L85 PathProgramCache]: Analyzing trace with hash 164705922, now seen corresponding path program 1 times [2022-12-14 11:38:13,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:38:13,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128598046] [2022-12-14 11:38:13,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:38:13,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:38:13,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:38:13,882 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked. [2022-12-14 11:38:13,882 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:38:13,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128598046] [2022-12-14 11:38:13,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128598046] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:38:13,883 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:38:13,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 11:38:13,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735369009] [2022-12-14 11:38:13,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:38:13,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:38:13,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:38:13,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:38:13,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:38:13,885 INFO L87 Difference]: Start difference. First operand 8705 states and 12383 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-12-14 11:38:15,923 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 11:38:18,455 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 11:38:22,217 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 11:38:22,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:38:22,220 INFO L93 Difference]: Finished difference Result 25191 states and 35654 transitions. [2022-12-14 11:38:22,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:38:22,227 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 179 [2022-12-14 11:38:22,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:38:22,316 INFO L225 Difference]: With dead ends: 25191 [2022-12-14 11:38:22,316 INFO L226 Difference]: Without dead ends: 16534 [2022-12-14 11:38:22,338 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 11:38:22,338 INFO L413 NwaCegarLoop]: 1547 mSDtfsCounter, 1094 mSDsluCounter, 1120 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1094 SdHoareTripleChecker+Valid, 2667 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-12-14 11:38:22,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1094 Valid, 2667 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 280 Invalid, 1 Unknown, 0 Unchecked, 8.0s Time] [2022-12-14 11:38:22,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16534 states. [2022-12-14 11:38:22,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16534 to 16519. [2022-12-14 11:38:22,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16519 states, 10378 states have (on average 1.328772403160532) internal successors, (13790), 10499 states have internal predecessors, (13790), 4761 states have call successors, (4761), 1380 states have call predecessors, (4761), 1379 states have return successors, (4754), 4735 states have call predecessors, (4754), 4754 states have call successors, (4754) [2022-12-14 11:38:23,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16519 states to 16519 states and 23305 transitions. [2022-12-14 11:38:23,073 INFO L78 Accepts]: Start accepts. Automaton has 16519 states and 23305 transitions. Word has length 179 [2022-12-14 11:38:23,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:38:23,074 INFO L495 AbstractCegarLoop]: Abstraction has 16519 states and 23305 transitions. [2022-12-14 11:38:23,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-12-14 11:38:23,075 INFO L276 IsEmpty]: Start isEmpty. Operand 16519 states and 23305 transitions. [2022-12-14 11:38:23,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-12-14 11:38:23,077 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:38:23,077 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:38:23,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 11:38:23,078 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:38:23,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:38:23,078 INFO L85 PathProgramCache]: Analyzing trace with hash -1619320118, now seen corresponding path program 1 times [2022-12-14 11:38:23,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:38:23,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748745860] [2022-12-14 11:38:23,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:38:23,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:38:23,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:38:23,327 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked. [2022-12-14 11:38:23,327 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:38:23,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748745860] [2022-12-14 11:38:23,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748745860] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:38:23,328 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:38:23,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 11:38:23,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10716527] [2022-12-14 11:38:23,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:38:23,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:38:23,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:38:23,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:38:23,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:38:23,329 INFO L87 Difference]: Start difference. First operand 16519 states and 23305 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-12-14 11:38:25,382 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 11:38:28,106 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 11:38:30,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:38:30,677 INFO L93 Difference]: Finished difference Result 47763 states and 67240 transitions. [2022-12-14 11:38:30,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:38:30,683 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 181 [2022-12-14 11:38:30,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:38:30,804 INFO L225 Difference]: With dead ends: 47763 [2022-12-14 11:38:30,804 INFO L226 Difference]: Without dead ends: 31292 [2022-12-14 11:38:30,841 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 11:38:30,841 INFO L413 NwaCegarLoop]: 1646 mSDtfsCounter, 1098 mSDsluCounter, 1120 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1098 SdHoareTripleChecker+Valid, 2766 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-12-14 11:38:30,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1098 Valid, 2766 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 291 Invalid, 2 Unknown, 0 Unchecked, 6.5s Time] [2022-12-14 11:38:30,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31292 states. [2022-12-14 11:38:31,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31292 to 31275. [2022-12-14 11:38:31,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31275 states, 19616 states have (on average 1.3266721044045677) internal successors, (26024), 19853 states have internal predecessors, (26024), 8967 states have call successors, (8967), 2692 states have call predecessors, (8967), 2691 states have return successors, (8960), 8921 states have call predecessors, (8960), 8960 states have call successors, (8960) [2022-12-14 11:38:32,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31275 states to 31275 states and 43951 transitions. [2022-12-14 11:38:32,064 INFO L78 Accepts]: Start accepts. Automaton has 31275 states and 43951 transitions. Word has length 181 [2022-12-14 11:38:32,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:38:32,065 INFO L495 AbstractCegarLoop]: Abstraction has 31275 states and 43951 transitions. [2022-12-14 11:38:32,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-12-14 11:38:32,065 INFO L276 IsEmpty]: Start isEmpty. Operand 31275 states and 43951 transitions. [2022-12-14 11:38:32,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-12-14 11:38:32,067 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:38:32,067 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:38:32,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 11:38:32,067 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:38:32,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:38:32,067 INFO L85 PathProgramCache]: Analyzing trace with hash -1289634910, now seen corresponding path program 1 times [2022-12-14 11:38:32,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:38:32,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763860087] [2022-12-14 11:38:32,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:38:32,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:38:32,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:38:32,386 INFO L134 CoverageAnalysis]: Checked inductivity of 558 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 558 trivial. 0 not checked. [2022-12-14 11:38:32,387 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:38:32,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763860087] [2022-12-14 11:38:32,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763860087] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:38:32,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:38:32,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 11:38:32,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936984144] [2022-12-14 11:38:32,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:38:32,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:38:32,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:38:32,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:38:32,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:38:32,389 INFO L87 Difference]: Start difference. First operand 31275 states and 43951 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-14 11:38:34,106 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 11:38:38,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:38:38,377 INFO L93 Difference]: Finished difference Result 35225 states and 48251 transitions. [2022-12-14 11:38:38,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:38:38,378 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), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 181 [2022-12-14 11:38:38,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:38:38,486 INFO L225 Difference]: With dead ends: 35225 [2022-12-14 11:38:38,486 INFO L226 Difference]: Without dead ends: 35221 [2022-12-14 11:38:38,499 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 11:38:38,500 INFO L413 NwaCegarLoop]: 1168 mSDtfsCounter, 744 mSDsluCounter, 499 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 744 SdHoareTripleChecker+Valid, 1667 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:38:38,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [744 Valid, 1667 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-12-14 11:38:38,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35221 states. [2022-12-14 11:38:39,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35221 to 35217. [2022-12-14 11:38:39,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35217 states, 21916 states have (on average 1.3105949990874246) internal successors, (28723), 22151 states have internal predecessors, (28723), 9735 states have call successors, (9735), 3566 states have call predecessors, (9735), 3565 states have return successors, (9730), 9691 states have call predecessors, (9730), 9730 states have call successors, (9730) [2022-12-14 11:38:39,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35217 states to 35217 states and 48188 transitions. [2022-12-14 11:38:39,597 INFO L78 Accepts]: Start accepts. Automaton has 35217 states and 48188 transitions. Word has length 181 [2022-12-14 11:38:39,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:38:39,598 INFO L495 AbstractCegarLoop]: Abstraction has 35217 states and 48188 transitions. [2022-12-14 11:38:39,598 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), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-14 11:38:39,598 INFO L276 IsEmpty]: Start isEmpty. Operand 35217 states and 48188 transitions. [2022-12-14 11:38:39,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-12-14 11:38:39,599 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:38:39,599 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:38:39,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 11:38:39,599 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:38:39,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:38:39,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1324377115, now seen corresponding path program 1 times [2022-12-14 11:38:39,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:38:39,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013882169] [2022-12-14 11:38:39,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:38:39,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:38:39,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:38:39,840 INFO L134 CoverageAnalysis]: Checked inductivity of 558 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 558 trivial. 0 not checked. [2022-12-14 11:38:39,840 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:38:39,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013882169] [2022-12-14 11:38:39,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013882169] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:38:39,840 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:38:39,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 11:38:39,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468631354] [2022-12-14 11:38:39,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:38:39,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:38:39,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:38:39,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:38:39,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:38:39,842 INFO L87 Difference]: Start difference. First operand 35217 states and 48188 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-14 11:38:42,199 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 11:38:43,320 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 11:38:47,170 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 11:38:47,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:38:47,661 INFO L93 Difference]: Finished difference Result 86519 states and 118016 transitions. [2022-12-14 11:38:47,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:38:47,667 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 182 [2022-12-14 11:38:47,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:38:47,826 INFO L225 Difference]: With dead ends: 86519 [2022-12-14 11:38:47,826 INFO L226 Difference]: Without dead ends: 51350 [2022-12-14 11:38:47,901 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 11:38:47,901 INFO L413 NwaCegarLoop]: 1278 mSDtfsCounter, 712 mSDsluCounter, 942 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 712 SdHoareTripleChecker+Valid, 2220 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-12-14 11:38:47,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [712 Valid, 2220 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2022-12-14 11:38:47,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51350 states. [2022-12-14 11:38:49,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51350 to 50848. [2022-12-14 11:38:49,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50848 states, 32072 states have (on average 1.3150099775505113) internal successors, (42175), 32710 states have internal predecessors, (42175), 13315 states have call successors, (13315), 5610 states have call predecessors, (13315), 5460 states have return successors, (13564), 12783 states have call predecessors, (13564), 13308 states have call successors, (13564) [2022-12-14 11:38:49,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50848 states to 50848 states and 69054 transitions. [2022-12-14 11:38:49,671 INFO L78 Accepts]: Start accepts. Automaton has 50848 states and 69054 transitions. Word has length 182 [2022-12-14 11:38:49,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:38:49,672 INFO L495 AbstractCegarLoop]: Abstraction has 50848 states and 69054 transitions. [2022-12-14 11:38:49,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-14 11:38:49,672 INFO L276 IsEmpty]: Start isEmpty. Operand 50848 states and 69054 transitions. [2022-12-14 11:38:49,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-12-14 11:38:49,674 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:38:49,674 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:38:49,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 11:38:49,674 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:38:49,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:38:49,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1893586693, now seen corresponding path program 1 times [2022-12-14 11:38:49,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:38:49,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744841383] [2022-12-14 11:38:49,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:38:49,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:38:49,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:38:49,905 INFO L134 CoverageAnalysis]: Checked inductivity of 558 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 558 trivial. 0 not checked. [2022-12-14 11:38:49,906 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:38:49,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744841383] [2022-12-14 11:38:49,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744841383] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:38:49,906 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:38:49,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 11:38:49,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957336828] [2022-12-14 11:38:49,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:38:49,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:38:49,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:38:49,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:38:49,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:38:49,908 INFO L87 Difference]: Start difference. First operand 50848 states and 69054 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-14 11:38:52,179 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 11:38:54,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:38:54,495 INFO L93 Difference]: Finished difference Result 50850 states and 69055 transitions. [2022-12-14 11:38:54,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:38:54,501 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 183 [2022-12-14 11:38:54,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:38:54,618 INFO L225 Difference]: With dead ends: 50850 [2022-12-14 11:38:54,619 INFO L226 Difference]: Without dead ends: 50843 [2022-12-14 11:38:54,633 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 11:38:54,634 INFO L413 NwaCegarLoop]: 1123 mSDtfsCounter, 1197 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1197 SdHoareTripleChecker+Valid, 1123 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:38:54,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1197 Valid, 1123 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-12-14 11:38:54,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50843 states. [2022-12-14 11:38:56,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50843 to 50843. [2022-12-14 11:38:56,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50843 states, 32068 states have (on average 1.3134900835724086) internal successors, (42121), 32705 states have internal predecessors, (42121), 13314 states have call successors, (13314), 5610 states have call predecessors, (13314), 5460 states have return successors, (13564), 12783 states have call predecessors, (13564), 13308 states have call successors, (13564) [2022-12-14 11:38:56,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50843 states to 50843 states and 68999 transitions. [2022-12-14 11:38:56,319 INFO L78 Accepts]: Start accepts. Automaton has 50843 states and 68999 transitions. Word has length 183 [2022-12-14 11:38:56,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:38:56,319 INFO L495 AbstractCegarLoop]: Abstraction has 50843 states and 68999 transitions. [2022-12-14 11:38:56,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-14 11:38:56,319 INFO L276 IsEmpty]: Start isEmpty. Operand 50843 states and 68999 transitions. [2022-12-14 11:38:56,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2022-12-14 11:38:56,321 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:38:56,321 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:38:56,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 11:38:56,322 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:38:56,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:38:56,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1606488091, now seen corresponding path program 1 times [2022-12-14 11:38:56,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:38:56,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461951125] [2022-12-14 11:38:56,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:38:56,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:38:56,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:38:56,553 INFO L134 CoverageAnalysis]: Checked inductivity of 565 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 562 trivial. 0 not checked. [2022-12-14 11:38:56,553 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:38:56,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461951125] [2022-12-14 11:38:56,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461951125] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:38:56,553 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:38:56,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 11:38:56,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508343522] [2022-12-14 11:38:56,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:38:56,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:38:56,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:38:56,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:38:56,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:38:56,554 INFO L87 Difference]: Start difference. First operand 50843 states and 68999 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-12-14 11:38:58,372 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 11:39:01,640 WARN L539 Checker$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 11:39:04,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:39:04,132 INFO L93 Difference]: Finished difference Result 76695 states and 104052 transitions. [2022-12-14 11:39:04,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:39:04,138 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 247 [2022-12-14 11:39:04,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:39:04,205 INFO L225 Difference]: With dead ends: 76695 [2022-12-14 11:39:04,206 INFO L226 Difference]: Without dead ends: 25884 [2022-12-14 11:39:04,303 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 11:39:04,303 INFO L413 NwaCegarLoop]: 1126 mSDtfsCounter, 6 mSDsluCounter, 1118 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2244 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-12-14 11:39:04,304 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2244 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 255 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-12-14 11:39:04,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25884 states. [2022-12-14 11:39:05,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25884 to 25655. [2022-12-14 11:39:05,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25655 states, 16162 states have (on average 1.3157406261601288) internal successors, (21265), 16489 states have internal predecessors, (21265), 6724 states have call successors, (6724), 2844 states have call predecessors, (6724), 2768 states have return successors, (6846), 6449 states have call predecessors, (6846), 6718 states have call successors, (6846) [2022-12-14 11:39:05,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25655 states to 25655 states and 34835 transitions. [2022-12-14 11:39:05,269 INFO L78 Accepts]: Start accepts. Automaton has 25655 states and 34835 transitions. Word has length 247 [2022-12-14 11:39:05,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:39:05,270 INFO L495 AbstractCegarLoop]: Abstraction has 25655 states and 34835 transitions. [2022-12-14 11:39:05,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-12-14 11:39:05,270 INFO L276 IsEmpty]: Start isEmpty. Operand 25655 states and 34835 transitions. [2022-12-14 11:39:05,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2022-12-14 11:39:05,277 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:39:05,278 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 9, 9, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:39:05,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 11:39:05,278 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:39:05,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:39:05,279 INFO L85 PathProgramCache]: Analyzing trace with hash 197319340, now seen corresponding path program 1 times [2022-12-14 11:39:05,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:39:05,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457880331] [2022-12-14 11:39:05,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:39:05,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:39:05,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:39:05,655 INFO L134 CoverageAnalysis]: Checked inductivity of 1640 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1638 trivial. 0 not checked. [2022-12-14 11:39:05,655 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:39:05,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457880331] [2022-12-14 11:39:05,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457880331] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:39:05,656 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:39:05,656 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 11:39:05,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312195050] [2022-12-14 11:39:05,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:39:05,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:39:05,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:39:05,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:39:05,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:39:05,658 INFO L87 Difference]: Start difference. First operand 25655 states and 34835 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2022-12-14 11:39:11,632 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 11:39:13,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:39:13,968 INFO L93 Difference]: Finished difference Result 63985 states and 87006 transitions. [2022-12-14 11:39:13,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:39:13,974 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 298 [2022-12-14 11:39:13,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:39:14,066 INFO L225 Difference]: With dead ends: 63985 [2022-12-14 11:39:14,066 INFO L226 Difference]: Without dead ends: 38425 [2022-12-14 11:39:14,113 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 11:39:14,114 INFO L413 NwaCegarLoop]: 1532 mSDtfsCounter, 1164 mSDsluCounter, 1095 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1164 SdHoareTripleChecker+Valid, 2627 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-12-14 11:39:14,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1164 Valid, 2627 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 290 Invalid, 1 Unknown, 0 Unchecked, 7.3s Time] [2022-12-14 11:39:14,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38425 states. [2022-12-14 11:39:15,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38425 to 38399. [2022-12-14 11:39:15,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38399 states, 24320 states have (on average 1.315172697368421) internal successors, (31985), 24811 states have internal predecessors, (31985), 9970 states have call successors, (9970), 4220 states have call predecessors, (9970), 4108 states have return successors, (10124), 9559 states have call predecessors, (10124), 9964 states have call successors, (10124) [2022-12-14 11:39:15,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38399 states to 38399 states and 52079 transitions. [2022-12-14 11:39:15,336 INFO L78 Accepts]: Start accepts. Automaton has 38399 states and 52079 transitions. Word has length 298 [2022-12-14 11:39:15,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:39:15,336 INFO L495 AbstractCegarLoop]: Abstraction has 38399 states and 52079 transitions. [2022-12-14 11:39:15,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2022-12-14 11:39:15,336 INFO L276 IsEmpty]: Start isEmpty. Operand 38399 states and 52079 transitions. [2022-12-14 11:39:15,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2022-12-14 11:39:15,339 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:39:15,340 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 9, 9, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:39:15,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 11:39:15,340 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:39:15,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:39:15,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1175684358, now seen corresponding path program 1 times [2022-12-14 11:39:15,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:39:15,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529743446] [2022-12-14 11:39:15,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:39:15,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:39:15,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:39:15,678 INFO L134 CoverageAnalysis]: Checked inductivity of 1640 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1640 trivial. 0 not checked. [2022-12-14 11:39:15,678 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:39:15,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529743446] [2022-12-14 11:39:15,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529743446] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:39:15,679 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:39:15,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 11:39:15,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987073195] [2022-12-14 11:39:15,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:39:15,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:39:15,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:39:15,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:39:15,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:39:15,681 INFO L87 Difference]: Start difference. First operand 38399 states and 52079 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (34), 3 states have call predecessors, (34), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-12-14 11:39:18,200 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 11:39:20,535 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 11:39:22,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:39:22,713 INFO L93 Difference]: Finished difference Result 76706 states and 104033 transitions. [2022-12-14 11:39:22,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:39:22,718 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (34), 3 states have call predecessors, (34), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 297 [2022-12-14 11:39:22,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:39:22,822 INFO L225 Difference]: With dead ends: 76706 [2022-12-14 11:39:22,822 INFO L226 Difference]: Without dead ends: 38402 [2022-12-14 11:39:22,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 11:39:22,897 INFO L413 NwaCegarLoop]: 1558 mSDtfsCounter, 1037 mSDsluCounter, 670 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1037 SdHoareTripleChecker+Valid, 2228 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-12-14 11:39:22,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1037 Valid, 2228 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-12-14 11:39:22,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38402 states. [2022-12-14 11:39:24,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38402 to 37837. [2022-12-14 11:39:24,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37837 states, 24081 states have (on average 1.3111581744944147) internal successors, (31574), 24403 states have internal predecessors, (31574), 9670 states have call successors, (9670), 4112 states have call predecessors, (9670), 4085 states have return successors, (9605), 9513 states have call predecessors, (9605), 9605 states have call successors, (9605) [2022-12-14 11:39:24,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37837 states to 37837 states and 50849 transitions. [2022-12-14 11:39:24,288 INFO L78 Accepts]: Start accepts. Automaton has 37837 states and 50849 transitions. Word has length 297 [2022-12-14 11:39:24,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:39:24,289 INFO L495 AbstractCegarLoop]: Abstraction has 37837 states and 50849 transitions. [2022-12-14 11:39:24,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (34), 3 states have call predecessors, (34), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-12-14 11:39:24,289 INFO L276 IsEmpty]: Start isEmpty. Operand 37837 states and 50849 transitions. [2022-12-14 11:39:24,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2022-12-14 11:39:24,297 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:39:24,298 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 9, 9, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:39:24,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-14 11:39:24,298 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:39:24,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:39:24,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1295550502, now seen corresponding path program 1 times [2022-12-14 11:39:24,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:39:24,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867865380] [2022-12-14 11:39:24,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:39:24,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:39:24,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:39:24,682 INFO L134 CoverageAnalysis]: Checked inductivity of 1643 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1643 trivial. 0 not checked. [2022-12-14 11:39:24,683 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:39:24,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867865380] [2022-12-14 11:39:24,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867865380] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:39:24,683 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:39:24,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 11:39:24,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550728873] [2022-12-14 11:39:24,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:39:24,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:39:24,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:39:24,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:39:24,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:39:24,684 INFO L87 Difference]: Start difference. First operand 37837 states and 50849 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (35), 3 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-12-14 11:39:25,789 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 11:39:27,812 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 11:39:33,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:39:33,231 INFO L93 Difference]: Finished difference Result 37847 states and 50857 transitions. [2022-12-14 11:39:33,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:39:33,232 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (35), 3 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 311 [2022-12-14 11:39:33,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:39:33,318 INFO L225 Difference]: With dead ends: 37847 [2022-12-14 11:39:33,318 INFO L226 Difference]: Without dead ends: 37844 [2022-12-14 11:39:33,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 11:39:33,330 INFO L413 NwaCegarLoop]: 1213 mSDtfsCounter, 569 mSDsluCounter, 716 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 569 SdHoareTripleChecker+Valid, 1929 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-12-14 11:39:33,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [569 Valid, 1929 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 232 Invalid, 1 Unknown, 0 Unchecked, 7.6s Time] [2022-12-14 11:39:33,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37844 states. [2022-12-14 11:39:34,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37844 to 37836. [2022-12-14 11:39:34,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37836 states, 24081 states have (on average 1.3078360533200448) internal successors, (31494), 24402 states have internal predecessors, (31494), 9669 states have call successors, (9669), 4112 states have call predecessors, (9669), 4085 states have return successors, (9605), 9513 states have call predecessors, (9605), 9605 states have call successors, (9605) [2022-12-14 11:39:34,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37836 states to 37836 states and 50768 transitions. [2022-12-14 11:39:34,585 INFO L78 Accepts]: Start accepts. Automaton has 37836 states and 50768 transitions. Word has length 311 [2022-12-14 11:39:34,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:39:34,585 INFO L495 AbstractCegarLoop]: Abstraction has 37836 states and 50768 transitions. [2022-12-14 11:39:34,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (35), 3 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-12-14 11:39:34,586 INFO L276 IsEmpty]: Start isEmpty. Operand 37836 states and 50768 transitions. [2022-12-14 11:39:34,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2022-12-14 11:39:34,607 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:39:34,608 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 9, 9, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:39:34,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-14 11:39:34,608 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:39:34,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:39:34,608 INFO L85 PathProgramCache]: Analyzing trace with hash 2045537870, now seen corresponding path program 1 times [2022-12-14 11:39:34,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:39:34,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539624429] [2022-12-14 11:39:34,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:39:34,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:39:34,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:39:35,490 INFO L134 CoverageAnalysis]: Checked inductivity of 1665 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1665 trivial. 0 not checked. [2022-12-14 11:39:35,490 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:39:35,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539624429] [2022-12-14 11:39:35,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539624429] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:39:35,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:39:35,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 11:39:35,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439669202] [2022-12-14 11:39:35,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:39:35,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 11:39:35,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:39:35,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 11:39:35,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 11:39:35,492 INFO L87 Difference]: Start difference. First operand 37836 states and 50768 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2022-12-14 11:39:36,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 11:39:41,276 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 11:39:42,743 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 11:39:48,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:39:48,645 INFO L93 Difference]: Finished difference Result 100911 states and 141869 transitions. [2022-12-14 11:39:48,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 11:39:48,651 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) Word has length 355 [2022-12-14 11:39:48,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:39:48,820 INFO L225 Difference]: With dead ends: 100911 [2022-12-14 11:39:48,820 INFO L226 Difference]: Without dead ends: 63170 [2022-12-14 11:39:48,884 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 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 11:39:48,885 INFO L413 NwaCegarLoop]: 1749 mSDtfsCounter, 985 mSDsluCounter, 2640 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 211 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1130 SdHoareTripleChecker+Valid, 4389 SdHoareTripleChecker+Invalid, 676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 211 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:39:48,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1130 Valid, 4389 Invalid, 676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [211 Valid, 464 Invalid, 1 Unknown, 0 Unchecked, 11.1s Time] [2022-12-14 11:39:48,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63170 states. [2022-12-14 11:39:50,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63170 to 37884. [2022-12-14 11:39:50,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37884 states, 24129 states have (on average 1.3062290190227528) internal successors, (31518), 24450 states have internal predecessors, (31518), 9669 states have call successors, (9669), 4112 states have call predecessors, (9669), 4085 states have return successors, (9605), 9513 states have call predecessors, (9605), 9605 states have call successors, (9605) [2022-12-14 11:39:50,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37884 states to 37884 states and 50792 transitions. [2022-12-14 11:39:50,917 INFO L78 Accepts]: Start accepts. Automaton has 37884 states and 50792 transitions. Word has length 355 [2022-12-14 11:39:50,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:39:50,918 INFO L495 AbstractCegarLoop]: Abstraction has 37884 states and 50792 transitions. [2022-12-14 11:39:50,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2022-12-14 11:39:50,919 INFO L276 IsEmpty]: Start isEmpty. Operand 37884 states and 50792 transitions. [2022-12-14 11:39:50,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2022-12-14 11:39:50,942 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:39:50,942 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 9, 9, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:39:50,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-14 11:39:50,942 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:39:50,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:39:50,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1052087350, now seen corresponding path program 1 times [2022-12-14 11:39:50,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:39:50,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30494984] [2022-12-14 11:39:50,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:39:50,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:39:51,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:39:51,201 INFO L134 CoverageAnalysis]: Checked inductivity of 1665 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1665 trivial. 0 not checked. [2022-12-14 11:39:51,202 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:39:51,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30494984] [2022-12-14 11:39:51,202 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30494984] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:39:51,202 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:39:51,202 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 11:39:51,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291312776] [2022-12-14 11:39:51,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:39:51,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:39:51,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:39:51,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:39:51,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:39:51,203 INFO L87 Difference]: Start difference. First operand 37884 states and 50792 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2022-12-14 11:39:55,097 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 11:39:59,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 11:40:01,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:40:01,733 INFO L93 Difference]: Finished difference Result 86894 states and 119387 transitions. [2022-12-14 11:40:01,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:40:01,733 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 359 [2022-12-14 11:40:01,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:40:01,855 INFO L225 Difference]: With dead ends: 86894 [2022-12-14 11:40:01,855 INFO L226 Difference]: Without dead ends: 49105 [2022-12-14 11:40:01,917 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 11:40:01,918 INFO L413 NwaCegarLoop]: 1504 mSDtfsCounter, 350 mSDsluCounter, 1080 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 2584 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2022-12-14 11:40:01,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [463 Valid, 2584 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 267 Invalid, 1 Unknown, 0 Unchecked, 8.4s Time] [2022-12-14 11:40:01,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49105 states. [2022-12-14 11:40:03,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49105 to 37932. [2022-12-14 11:40:03,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37932 states, 24153 states have (on average 1.3049310644640417) internal successors, (31518), 24474 states have internal predecessors, (31518), 9693 states have call successors, (9693), 4112 states have call predecessors, (9693), 4085 states have return successors, (9629), 9537 states have call predecessors, (9629), 9629 states have call successors, (9629) [2022-12-14 11:40:03,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37932 states to 37932 states and 50840 transitions. [2022-12-14 11:40:03,924 INFO L78 Accepts]: Start accepts. Automaton has 37932 states and 50840 transitions. Word has length 359 [2022-12-14 11:40:03,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:40:03,924 INFO L495 AbstractCegarLoop]: Abstraction has 37932 states and 50840 transitions. [2022-12-14 11:40:03,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2022-12-14 11:40:03,924 INFO L276 IsEmpty]: Start isEmpty. Operand 37932 states and 50840 transitions. [2022-12-14 11:40:03,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2022-12-14 11:40:03,948 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:40:03,948 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 9, 9, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:40:03,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-14 11:40:03,948 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:40:03,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:40:03,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1316965759, now seen corresponding path program 1 times [2022-12-14 11:40:03,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:40:03,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546013875] [2022-12-14 11:40:03,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:40:03,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:40:04,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:40:04,792 INFO L134 CoverageAnalysis]: Checked inductivity of 1665 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1665 trivial. 0 not checked. [2022-12-14 11:40:04,792 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:40:04,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546013875] [2022-12-14 11:40:04,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546013875] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:40:04,792 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:40:04,792 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 11:40:04,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505509894] [2022-12-14 11:40:04,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:40:04,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 11:40:04,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:40:04,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 11:40:04,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 11:40:04,794 INFO L87 Difference]: Start difference. First operand 37932 states and 50840 transitions. Second operand has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2022-12-14 11:40:06,112 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 11:40:18,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:40:18,337 INFO L93 Difference]: Finished difference Result 99665 states and 139777 transitions. [2022-12-14 11:40:18,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 11:40:18,338 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 362 [2022-12-14 11:40:18,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:40:18,494 INFO L225 Difference]: With dead ends: 99665 [2022-12-14 11:40:18,495 INFO L226 Difference]: Without dead ends: 61828 [2022-12-14 11:40:18,565 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 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 11:40:18,565 INFO L413 NwaCegarLoop]: 1716 mSDtfsCounter, 965 mSDsluCounter, 2622 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 191 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1110 SdHoareTripleChecker+Valid, 4338 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 191 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2022-12-14 11:40:18,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1110 Valid, 4338 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [191 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 9.7s Time] [2022-12-14 11:40:18,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61828 states. [2022-12-14 11:40:20,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61828 to 37537. [2022-12-14 11:40:20,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37537 states, 23954 states have (on average 1.3044167988644904) internal successors, (31246), 24251 states have internal predecessors, (31246), 9570 states have call successors, (9570), 4039 states have call predecessors, (9570), 4012 states have return successors, (9507), 9438 states have call predecessors, (9507), 9507 states have call successors, (9507) [2022-12-14 11:40:20,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37537 states to 37537 states and 50323 transitions. [2022-12-14 11:40:20,698 INFO L78 Accepts]: Start accepts. Automaton has 37537 states and 50323 transitions. Word has length 362 [2022-12-14 11:40:20,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:40:20,699 INFO L495 AbstractCegarLoop]: Abstraction has 37537 states and 50323 transitions. [2022-12-14 11:40:20,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2022-12-14 11:40:20,699 INFO L276 IsEmpty]: Start isEmpty. Operand 37537 states and 50323 transitions. [2022-12-14 11:40:20,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 416 [2022-12-14 11:40:20,746 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:40:20,746 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 9, 9, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:40:20,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-14 11:40:20,747 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:40:20,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:40:20,747 INFO L85 PathProgramCache]: Analyzing trace with hash -725692256, now seen corresponding path program 1 times [2022-12-14 11:40:20,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:40:20,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377461605] [2022-12-14 11:40:20,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:40:20,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:40:20,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:40:21,866 INFO L134 CoverageAnalysis]: Checked inductivity of 1695 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 1681 trivial. 0 not checked. [2022-12-14 11:40:21,866 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:40:21,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377461605] [2022-12-14 11:40:21,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377461605] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 11:40:21,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1800317241] [2022-12-14 11:40:21,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:40:21,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:40:21,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_145375f9-bcb9-48fb-b8fc-b451c47dc12c/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:40:21,868 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_145375f9-bcb9-48fb-b8fc-b451c47dc12c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:40:21,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_145375f9-bcb9-48fb-b8fc-b451c47dc12c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 11:40:23,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:40:23,354 INFO L263 TraceCheckSpWp]: Trace formula consists of 6163 conjuncts, 23 conjunts are in the unsatisfiable core [2022-12-14 11:40:23,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:40:23,449 INFO L134 CoverageAnalysis]: Checked inductivity of 1695 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 1661 trivial. 0 not checked. [2022-12-14 11:40:23,449 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 11:40:23,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1800317241] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:40:23,449 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 11:40:23,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 7 [2022-12-14 11:40:23,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432173517] [2022-12-14 11:40:23,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:40:23,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 11:40:23,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:40:23,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 11:40:23,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-14 11:40:23,452 INFO L87 Difference]: Start difference. First operand 37537 states and 50323 transitions. Second operand has 7 states, 6 states have (on average 21.5) internal successors, (129), 5 states have internal predecessors, (129), 2 states have call successors, (55), 2 states have call predecessors, (55), 4 states have return successors, (52), 4 states have call predecessors, (52), 2 states have call successors, (52) [2022-12-14 11:40:26,520 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 11:40:28,527 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 11:40:30,534 WARN L539 Checker$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 11:40:31,538 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 11:40:34,824 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 11:40:37,774 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 11:40:38,778 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 11:40:40,785 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 11:40:55,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:40:55,834 INFO L93 Difference]: Finished difference Result 90285 states and 125136 transitions. [2022-12-14 11:40:55,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 11:40:55,835 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 21.5) internal successors, (129), 5 states have internal predecessors, (129), 2 states have call successors, (55), 2 states have call predecessors, (55), 4 states have return successors, (52), 4 states have call predecessors, (52), 2 states have call successors, (52) Word has length 415 [2022-12-14 11:40:55,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:40:55,980 INFO L225 Difference]: With dead ends: 90285 [2022-12-14 11:40:55,980 INFO L226 Difference]: Without dead ends: 52843 [2022-12-14 11:40:56,045 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 422 GetRequests, 417 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-14 11:40:56,046 INFO L413 NwaCegarLoop]: 1686 mSDtfsCounter, 368 mSDsluCounter, 7963 mSDsCounter, 0 mSdLazyCounter, 994 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 492 SdHoareTripleChecker+Valid, 9649 SdHoareTripleChecker+Invalid, 999 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 994 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.6s IncrementalHoareTripleChecker+Time [2022-12-14 11:40:56,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [492 Valid, 9649 Invalid, 999 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 994 Invalid, 5 Unknown, 0 Unchecked, 29.6s Time] [2022-12-14 11:40:56,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52843 states. [2022-12-14 11:40:58,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52843 to 37825. [2022-12-14 11:40:58,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37825 states, 24146 states have (on average 1.301996189845109) internal successors, (31438), 24443 states have internal predecessors, (31438), 9570 states have call successors, (9570), 4039 states have call predecessors, (9570), 4108 states have return successors, (9923), 9534 states have call predecessors, (9923), 9507 states have call successors, (9923) [2022-12-14 11:40:58,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37825 states to 37825 states and 50931 transitions. [2022-12-14 11:40:58,135 INFO L78 Accepts]: Start accepts. Automaton has 37825 states and 50931 transitions. Word has length 415 [2022-12-14 11:40:58,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:40:58,135 INFO L495 AbstractCegarLoop]: Abstraction has 37825 states and 50931 transitions. [2022-12-14 11:40:58,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 21.5) internal successors, (129), 5 states have internal predecessors, (129), 2 states have call successors, (55), 2 states have call predecessors, (55), 4 states have return successors, (52), 4 states have call predecessors, (52), 2 states have call successors, (52) [2022-12-14 11:40:58,135 INFO L276 IsEmpty]: Start isEmpty. Operand 37825 states and 50931 transitions. [2022-12-14 11:40:58,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 420 [2022-12-14 11:40:58,247 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:40:58,247 INFO L195 NwaCegarLoop]: trace histogram [19, 18, 18, 18, 18, 18, 18, 18, 18, 9, 9, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:40:58,264 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_145375f9-bcb9-48fb-b8fc-b451c47dc12c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 11:40:58,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_145375f9-bcb9-48fb-b8fc-b451c47dc12c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:40:58,449 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:40:58,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:40:58,450 INFO L85 PathProgramCache]: Analyzing trace with hash -722897253, now seen corresponding path program 1 times [2022-12-14 11:40:58,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:40:58,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747447375] [2022-12-14 11:40:58,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:40:58,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:40:58,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:40:59,118 INFO L134 CoverageAnalysis]: Checked inductivity of 1731 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1725 trivial. 0 not checked. [2022-12-14 11:40:59,119 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:40:59,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747447375] [2022-12-14 11:40:59,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747447375] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:40:59,119 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:40:59,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 11:40:59,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530326113] [2022-12-14 11:40:59,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:40:59,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:40:59,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:40:59,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:40:59,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:40:59,121 INFO L87 Difference]: Start difference. First operand 37825 states and 50931 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 2 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-12-14 11:41:03,313 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 11:41:08,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:41:08,064 INFO L93 Difference]: Finished difference Result 75819 states and 102215 transitions. [2022-12-14 11:41:08,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:41:08,070 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 2 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 419 [2022-12-14 11:41:08,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:41:08,157 INFO L225 Difference]: With dead ends: 75819 [2022-12-14 11:41:08,157 INFO L226 Difference]: Without dead ends: 38089 [2022-12-14 11:41:08,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 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 11:41:08,218 INFO L413 NwaCegarLoop]: 1123 mSDtfsCounter, 11 mSDsluCounter, 1113 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 2236 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-12-14 11:41:08,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 2236 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2022-12-14 11:41:08,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38089 states. [2022-12-14 11:41:10,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38089 to 37993. [2022-12-14 11:41:10,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37993 states, 24290 states have (on average 1.3031700288184438) internal successors, (31654), 24587 states have internal predecessors, (31654), 9594 states have call successors, (9594), 4039 states have call predecessors, (9594), 4108 states have return successors, (9947), 9558 states have call predecessors, (9947), 9531 states have call successors, (9947) [2022-12-14 11:41:10,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37993 states to 37993 states and 51195 transitions. [2022-12-14 11:41:10,257 INFO L78 Accepts]: Start accepts. Automaton has 37993 states and 51195 transitions. Word has length 419 [2022-12-14 11:41:10,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:41:10,258 INFO L495 AbstractCegarLoop]: Abstraction has 37993 states and 51195 transitions. [2022-12-14 11:41:10,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 2 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-12-14 11:41:10,258 INFO L276 IsEmpty]: Start isEmpty. Operand 37993 states and 51195 transitions. [2022-12-14 11:41:10,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 424 [2022-12-14 11:41:10,304 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:41:10,304 INFO L195 NwaCegarLoop]: trace histogram [19, 18, 18, 18, 18, 18, 18, 18, 18, 9, 9, 5, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:41:10,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-14 11:41:10,305 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:41:10,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:41:10,305 INFO L85 PathProgramCache]: Analyzing trace with hash 948225062, now seen corresponding path program 1 times [2022-12-14 11:41:10,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:41:10,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077294413] [2022-12-14 11:41:10,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:41:10,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:41:10,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:41:11,310 INFO L134 CoverageAnalysis]: Checked inductivity of 1733 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 1724 trivial. 0 not checked. [2022-12-14 11:41:11,310 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:41:11,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077294413] [2022-12-14 11:41:11,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077294413] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 11:41:11,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [549465156] [2022-12-14 11:41:11,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:41:11,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:41:11,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_145375f9-bcb9-48fb-b8fc-b451c47dc12c/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:41:11,311 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_145375f9-bcb9-48fb-b8fc-b451c47dc12c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:41:11,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_145375f9-bcb9-48fb-b8fc-b451c47dc12c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 11:41:12,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:41:12,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 6278 conjuncts, 18 conjunts are in the unsatisfiable core [2022-12-14 11:41:12,301 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:41:12,422 INFO L134 CoverageAnalysis]: Checked inductivity of 1733 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1726 trivial. 0 not checked. [2022-12-14 11:41:12,423 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 11:41:12,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [549465156] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:41:12,423 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 11:41:12,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 10 [2022-12-14 11:41:12,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479994756] [2022-12-14 11:41:12,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:41:12,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 11:41:12,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:41:12,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 11:41:12,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-12-14 11:41:12,426 INFO L87 Difference]: Start difference. First operand 37993 states and 51195 transitions. Second operand has 8 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 3 states have call successors, (56), 2 states have call predecessors, (56), 3 states have return successors, (53), 4 states have call predecessors, (53), 3 states have call successors, (53) [2022-12-14 11:41:14,467 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 11:41:17,136 WARN L539 Checker$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 11:41:18,790 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 11:41:20,802 WARN L539 Checker$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 11:41:22,747 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 11:41:25,749 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 11:41:27,740 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 11:41:29,053 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 11:41:30,133 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 11:41:32,143 WARN L539 Checker$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 11:41:38,334 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 11:41:44,302 WARN L539 Checker$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 11:41:45,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:41:45,373 INFO L93 Difference]: Finished difference Result 91628 states and 127326 transitions. [2022-12-14 11:41:45,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-14 11:41:45,374 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 3 states have call successors, (56), 2 states have call predecessors, (56), 3 states have return successors, (53), 4 states have call predecessors, (53), 3 states have call successors, (53) Word has length 423 [2022-12-14 11:41:45,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:41:45,516 INFO L225 Difference]: With dead ends: 91628 [2022-12-14 11:41:45,516 INFO L226 Difference]: Without dead ends: 53730 [2022-12-14 11:41:45,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 434 GetRequests, 423 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-12-14 11:41:45,577 INFO L413 NwaCegarLoop]: 1696 mSDtfsCounter, 425 mSDsluCounter, 7924 mSDsCounter, 0 mSdLazyCounter, 1070 mSolverCounterSat, 14 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 554 SdHoareTripleChecker+Valid, 9620 SdHoareTripleChecker+Invalid, 1088 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1070 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.5s IncrementalHoareTripleChecker+Time [2022-12-14 11:41:45,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [554 Valid, 9620 Invalid, 1088 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1070 Invalid, 4 Unknown, 0 Unchecked, 29.5s Time] [2022-12-14 11:41:45,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53730 states. [2022-12-14 11:41:47,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53730 to 38617. [2022-12-14 11:41:47,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38617 states, 24794 states have (on average 1.3057191255949019) internal successors, (32374), 25091 states have internal predecessors, (32374), 9690 states have call successors, (9690), 4039 states have call predecessors, (9690), 4132 states have return successors, (10091), 9678 states have call predecessors, (10091), 9627 states have call successors, (10091) [2022-12-14 11:41:47,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38617 states to 38617 states and 52155 transitions. [2022-12-14 11:41:47,940 INFO L78 Accepts]: Start accepts. Automaton has 38617 states and 52155 transitions. Word has length 423 [2022-12-14 11:41:47,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:41:47,940 INFO L495 AbstractCegarLoop]: Abstraction has 38617 states and 52155 transitions. [2022-12-14 11:41:47,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 3 states have call successors, (56), 2 states have call predecessors, (56), 3 states have return successors, (53), 4 states have call predecessors, (53), 3 states have call successors, (53) [2022-12-14 11:41:47,940 INFO L276 IsEmpty]: Start isEmpty. Operand 38617 states and 52155 transitions. [2022-12-14 11:41:47,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2022-12-14 11:41:47,988 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:41:47,988 INFO L195 NwaCegarLoop]: trace histogram [19, 18, 18, 18, 18, 18, 18, 18, 18, 9, 9, 5, 5, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:41:48,003 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_145375f9-bcb9-48fb-b8fc-b451c47dc12c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 11:41:48,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_145375f9-bcb9-48fb-b8fc-b451c47dc12c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:41:48,190 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:41:48,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:41:48,191 INFO L85 PathProgramCache]: Analyzing trace with hash -540689042, now seen corresponding path program 1 times [2022-12-14 11:41:48,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:41:48,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995249946] [2022-12-14 11:41:48,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:41:48,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:41:49,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:41:49,792 INFO L134 CoverageAnalysis]: Checked inductivity of 1738 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 1720 trivial. 0 not checked. [2022-12-14 11:41:49,793 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:41:49,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995249946] [2022-12-14 11:41:49,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995249946] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 11:41:49,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2039638195] [2022-12-14 11:41:49,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:41:49,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:41:49,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_145375f9-bcb9-48fb-b8fc-b451c47dc12c/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:41:49,794 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_145375f9-bcb9-48fb-b8fc-b451c47dc12c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:41:49,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_145375f9-bcb9-48fb-b8fc-b451c47dc12c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 11:41:56,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:41:56,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 6385 conjuncts, 15 conjunts are in the unsatisfiable core [2022-12-14 11:41:56,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:41:56,139 INFO L134 CoverageAnalysis]: Checked inductivity of 1738 backedges. 852 proven. 0 refuted. 0 times theorem prover too weak. 886 trivial. 0 not checked. [2022-12-14 11:41:56,139 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 11:41:56,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2039638195] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:41:56,139 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 11:41:56,139 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2022-12-14 11:41:56,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595321704] [2022-12-14 11:41:56,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:41:56,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 11:41:56,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:41:56,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 11:41:56,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-14 11:41:56,140 INFO L87 Difference]: Start difference. First operand 38617 states and 52155 transitions. Second operand has 4 states, 3 states have (on average 44.333333333333336) internal successors, (133), 4 states have internal predecessors, (133), 2 states have call successors, (59), 2 states have call predecessors, (59), 3 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2022-12-14 11:41:57,593 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 11:41:59,332 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 11:42:01,668 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 11:42:03,648 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 11:42:05,659 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 11:42:10,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:42:10,168 INFO L93 Difference]: Finished difference Result 77208 states and 104283 transitions. [2022-12-14 11:42:10,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 11:42:10,174 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 44.333333333333336) internal successors, (133), 4 states have internal predecessors, (133), 2 states have call successors, (59), 2 states have call predecessors, (59), 3 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) Word has length 430 [2022-12-14 11:42:10,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:42:10,266 INFO L225 Difference]: With dead ends: 77208 [2022-12-14 11:42:10,266 INFO L226 Difference]: Without dead ends: 38618 [2022-12-14 11:42:10,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 434 GetRequests, 429 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-14 11:42:10,319 INFO L413 NwaCegarLoop]: 1119 mSDtfsCounter, 1 mSDsluCounter, 2218 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 3337 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:42:10,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 3337 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 402 Invalid, 1 Unknown, 0 Unchecked, 12.1s Time] [2022-12-14 11:42:10,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38618 states. [2022-12-14 11:42:12,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38618 to 38618. [2022-12-14 11:42:12,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38618 states, 24795 states have (on average 1.3057067957249446) internal successors, (32375), 25092 states have internal predecessors, (32375), 9690 states have call successors, (9690), 4039 states have call predecessors, (9690), 4132 states have return successors, (10091), 9678 states have call predecessors, (10091), 9627 states have call successors, (10091) [2022-12-14 11:42:12,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38618 states to 38618 states and 52156 transitions. [2022-12-14 11:42:12,414 INFO L78 Accepts]: Start accepts. Automaton has 38618 states and 52156 transitions. Word has length 430 [2022-12-14 11:42:12,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:42:12,414 INFO L495 AbstractCegarLoop]: Abstraction has 38618 states and 52156 transitions. [2022-12-14 11:42:12,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 44.333333333333336) internal successors, (133), 4 states have internal predecessors, (133), 2 states have call successors, (59), 2 states have call predecessors, (59), 3 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2022-12-14 11:42:12,414 INFO L276 IsEmpty]: Start isEmpty. Operand 38618 states and 52156 transitions. [2022-12-14 11:42:12,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 440 [2022-12-14 11:42:12,463 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:42:12,463 INFO L195 NwaCegarLoop]: trace histogram [19, 18, 18, 18, 18, 18, 18, 18, 18, 9, 9, 9, 5, 5, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:42:12,484 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_145375f9-bcb9-48fb-b8fc-b451c47dc12c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 11:42:12,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_145375f9-bcb9-48fb-b8fc-b451c47dc12c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:42:12,665 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:42:12,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:42:12,666 INFO L85 PathProgramCache]: Analyzing trace with hash 1539503316, now seen corresponding path program 1 times [2022-12-14 11:42:12,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:42:12,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8688527] [2022-12-14 11:42:12,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:42:12,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:42:15,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:42:16,162 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 2 proven. 41 refuted. 0 times theorem prover too weak. 1812 trivial. 0 not checked. [2022-12-14 11:42:16,162 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:42:16,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8688527] [2022-12-14 11:42:16,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8688527] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 11:42:16,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [784863470] [2022-12-14 11:42:16,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:42:16,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:42:16,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_145375f9-bcb9-48fb-b8fc-b451c47dc12c/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:42:16,164 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_145375f9-bcb9-48fb-b8fc-b451c47dc12c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:42:16,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_145375f9-bcb9-48fb-b8fc-b451c47dc12c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 11:42:24,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:42:24,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 6520 conjuncts, 19 conjunts are in the unsatisfiable core [2022-12-14 11:42:24,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:42:24,580 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 876 proven. 1 refuted. 0 times theorem prover too weak. 978 trivial. 0 not checked. [2022-12-14 11:42:24,580 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:42:24,893 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 2 proven. 41 refuted. 0 times theorem prover too weak. 1812 trivial. 0 not checked. [2022-12-14 11:42:24,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [784863470] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:42:24,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1198629183] [2022-12-14 11:42:24,918 INFO L159 IcfgInterpreter]: Started Sifa with 199 locations of interest [2022-12-14 11:42:24,919 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 11:42:24,923 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 11:42:24,928 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 11:42:24,928 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 11:42:35,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:42:36,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:42:36,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:42:36,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:42:36,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:42:36,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:42:36,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:42:36,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:42:36,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:42:38,447 INFO L217 Elim1Store]: Index analysis took 3026 ms