./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a108855a-2960-45cb-be6b-7d863b61a3ba/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a108855a-2960-45cb-be6b-7d863b61a3ba/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_a108855a-2960-45cb-be6b-7d863b61a3ba/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a108855a-2960-45cb-be6b-7d863b61a3ba/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a108855a-2960-45cb-be6b-7d863b61a3ba/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_a108855a-2960-45cb-be6b-7d863b61a3ba/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 3acbab6b9aaee88273e5c2573b1301b2b4d4059e0d0ec0927c600e9ad855395b --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 05:13:48,424 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 05:13:48,425 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 05:13:48,437 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 05:13:48,437 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 05:13:48,438 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 05:13:48,439 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 05:13:48,440 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 05:13:48,441 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 05:13:48,441 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 05:13:48,442 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 05:13:48,443 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 05:13:48,443 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 05:13:48,444 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 05:13:48,445 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 05:13:48,445 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 05:13:48,446 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 05:13:48,446 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 05:13:48,447 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 05:13:48,449 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 05:13:48,449 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 05:13:48,450 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 05:13:48,451 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 05:13:48,452 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 05:13:48,454 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 05:13:48,454 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 05:13:48,454 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 05:13:48,455 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 05:13:48,455 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 05:13:48,456 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 05:13:48,456 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 05:13:48,456 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 05:13:48,457 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 05:13:48,457 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 05:13:48,458 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 05:13:48,458 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 05:13:48,459 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 05:13:48,459 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 05:13:48,459 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 05:13:48,460 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 05:13:48,460 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 05:13:48,461 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a108855a-2960-45cb-be6b-7d863b61a3ba/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 05:13:48,474 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 05:13:48,474 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 05:13:48,474 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 05:13:48,474 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 05:13:48,475 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 05:13:48,475 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 05:13:48,475 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 05:13:48,475 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 05:13:48,475 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 05:13:48,475 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 05:13:48,476 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 05:13:48,476 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 05:13:48,476 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 05:13:48,476 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 05:13:48,476 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 05:13:48,476 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 05:13:48,476 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 05:13:48,476 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 05:13:48,477 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 05:13:48,477 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 05:13:48,477 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 05:13:48,477 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 05:13:48,478 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 05:13:48,478 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 05:13:48,478 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 05:13:48,478 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 05:13:48,478 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 05:13:48,478 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 05:13:48,479 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 05:13:48,479 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 05:13:48,479 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 05:13:48,479 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 05:13:48,479 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 05:13:48,479 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 05:13:48,479 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 05:13:48,480 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 05:13:48,480 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 05:13:48,480 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 05:13:48,480 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_a108855a-2960-45cb-be6b-7d863b61a3ba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a108855a-2960-45cb-be6b-7d863b61a3ba/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3acbab6b9aaee88273e5c2573b1301b2b4d4059e0d0ec0927c600e9ad855395b [2022-12-14 05:13:48,694 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 05:13:48,714 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 05:13:48,716 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 05:13:48,717 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 05:13:48,717 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 05:13:48,718 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a108855a-2960-45cb-be6b-7d863b61a3ba/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i [2022-12-14 05:13:51,370 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 05:13:51,696 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 05:13:51,697 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a108855a-2960-45cb-be6b-7d863b61a3ba/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i [2022-12-14 05:13:51,723 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a108855a-2960-45cb-be6b-7d863b61a3ba/bin/utaipan-gh47qXpMRh/data/4b29cc24d/079d3f01f09743a3835ac63473d02a31/FLAGed6dc08fc [2022-12-14 05:13:51,738 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a108855a-2960-45cb-be6b-7d863b61a3ba/bin/utaipan-gh47qXpMRh/data/4b29cc24d/079d3f01f09743a3835ac63473d02a31 [2022-12-14 05:13:51,740 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 05:13:51,741 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 05:13:51,743 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 05:13:51,743 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 05:13:51,747 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 05:13:51,747 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:13:51" (1/1) ... [2022-12-14 05:13:51,748 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69481ef3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:13:51, skipping insertion in model container [2022-12-14 05:13:51,748 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:13:51" (1/1) ... [2022-12-14 05:13:51,756 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 05:13:51,827 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 05:13:52,408 WARN L623 FunctionHandler]: Unknown extern function usb_reset_device [2022-12-14 05:13:52,447 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 05:13:52,449 WARN L623 FunctionHandler]: Unknown extern function usbnet_probe [2022-12-14 05:13:52,450 WARN L623 FunctionHandler]: Unknown extern function usbnet_disconnect [2022-12-14 05:13:52,450 WARN L623 FunctionHandler]: Unknown extern function usbnet_disconnect [2022-12-14 05:13:52,451 WARN L623 FunctionHandler]: Unknown extern function usbnet_suspend [2022-12-14 05:13:52,451 WARN L623 FunctionHandler]: Unknown extern function usbnet_resume [2022-12-14 05:13:52,452 WARN L623 FunctionHandler]: Unknown extern function ldv_reset_resume_1 [2022-12-14 05:13:52,456 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 05:13:52,456 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 05:13:52,456 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 05:13:52,457 WARN L623 FunctionHandler]: Unknown extern function mutex_trylock [2022-12-14 05:13:52,457 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 05:13:52,458 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 05:13:52,458 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 05:13:52,459 WARN L623 FunctionHandler]: Unknown extern function __ldv_usb_unlock_device [2022-12-14 05:13:52,459 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-12-14 05:13:52,460 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-12-14 05:13:52,463 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_a108855a-2960-45cb-be6b-7d863b61a3ba/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i[185252,185265] [2022-12-14 05:13:52,586 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:13:52,607 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 05:13:52,690 WARN L623 FunctionHandler]: Unknown extern function usb_reset_device [2022-12-14 05:13:52,698 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 05:13:52,699 WARN L623 FunctionHandler]: Unknown extern function usbnet_probe [2022-12-14 05:13:52,700 WARN L623 FunctionHandler]: Unknown extern function usbnet_disconnect [2022-12-14 05:13:52,700 WARN L623 FunctionHandler]: Unknown extern function usbnet_disconnect [2022-12-14 05:13:52,701 WARN L623 FunctionHandler]: Unknown extern function usbnet_suspend [2022-12-14 05:13:52,701 WARN L623 FunctionHandler]: Unknown extern function usbnet_resume [2022-12-14 05:13:52,701 WARN L623 FunctionHandler]: Unknown extern function ldv_reset_resume_1 [2022-12-14 05:13:52,704 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 05:13:52,704 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 05:13:52,704 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 05:13:52,705 WARN L623 FunctionHandler]: Unknown extern function mutex_trylock [2022-12-14 05:13:52,705 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 05:13:52,705 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 05:13:52,706 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 05:13:52,706 WARN L623 FunctionHandler]: Unknown extern function __ldv_usb_unlock_device [2022-12-14 05:13:52,706 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-12-14 05:13:52,707 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-12-14 05:13:52,707 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_a108855a-2960-45cb-be6b-7d863b61a3ba/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i[185252,185265] [2022-12-14 05:13:52,743 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:13:52,780 INFO L208 MainTranslator]: Completed translation [2022-12-14 05:13:52,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:13:52 WrapperNode [2022-12-14 05:13:52,780 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 05:13:52,781 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 05:13:52,782 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 05:13:52,782 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 05:13:52,789 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:13:52" (1/1) ... [2022-12-14 05:13:52,816 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:13:52" (1/1) ... [2022-12-14 05:13:52,865 INFO L138 Inliner]: procedures = 117, calls = 568, calls flagged for inlining = 30, calls inlined = 25, statements flattened = 1081 [2022-12-14 05:13:52,866 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 05:13:52,866 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 05:13:52,866 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 05:13:52,866 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 05:13:52,875 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:13:52" (1/1) ... [2022-12-14 05:13:52,875 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:13:52" (1/1) ... [2022-12-14 05:13:52,881 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:13:52" (1/1) ... [2022-12-14 05:13:52,882 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:13:52" (1/1) ... [2022-12-14 05:13:52,903 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:13:52" (1/1) ... [2022-12-14 05:13:52,907 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:13:52" (1/1) ... [2022-12-14 05:13:52,912 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:13:52" (1/1) ... [2022-12-14 05:13:52,915 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:13:52" (1/1) ... [2022-12-14 05:13:52,921 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 05:13:52,921 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 05:13:52,921 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 05:13:52,921 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 05:13:52,922 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:13:52" (1/1) ... [2022-12-14 05:13:52,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 05:13:52,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a108855a-2960-45cb-be6b-7d863b61a3ba/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:13:52,946 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a108855a-2960-45cb-be6b-7d863b61a3ba/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 05:13:52,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a108855a-2960-45cb-be6b-7d863b61a3ba/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 05:13:52,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-12-14 05:13:52,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-12-14 05:13:52,983 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 05:13:52,983 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-12-14 05:13:52,983 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-12-14 05:13:52,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_negative [2022-12-14 05:13:52,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_negative [2022-12-14 05:13:52,984 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2022-12-14 05:13:52,984 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2022-12-14 05:13:52,984 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-12-14 05:13:52,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-12-14 05:13:52,984 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-12-14 05:13:52,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-12-14 05:13:52,984 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-14 05:13:52,984 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-14 05:13:52,984 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 05:13:52,985 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 05:13:52,985 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_udev [2022-12-14 05:13:52,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_udev [2022-12-14 05:13:52,985 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-12-14 05:13:52,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-12-14 05:13:52,985 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 05:13:52,985 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 05:13:52,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 05:13:52,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 05:13:52,985 INFO L130 BoogieDeclarations]: Found specification of procedure always_connected [2022-12-14 05:13:52,986 INFO L138 BoogieDeclarations]: Found implementation of procedure always_connected [2022-12-14 05:13:52,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 05:13:52,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 05:13:52,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 05:13:53,199 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 05:13:53,201 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 05:13:53,259 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-12-14 05:13:53,913 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 05:13:54,021 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 05:13:54,022 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 05:13:54,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:13:54 BoogieIcfgContainer [2022-12-14 05:13:54,024 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 05:13:54,026 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 05:13:54,026 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 05:13:54,029 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 05:13:54,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 05:13:51" (1/3) ... [2022-12-14 05:13:54,030 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1baf8925 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:13:54, skipping insertion in model container [2022-12-14 05:13:54,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:13:52" (2/3) ... [2022-12-14 05:13:54,030 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1baf8925 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:13:54, skipping insertion in model container [2022-12-14 05:13:54,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:13:54" (3/3) ... [2022-12-14 05:13:54,032 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i [2022-12-14 05:13:54,046 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 05:13:54,047 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 05:13:54,091 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 05:13:54,097 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;@3b457ef8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 05:13:54,097 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 05:13:54,101 INFO L276 IsEmpty]: Start isEmpty. Operand has 145 states, 100 states have (on average 1.55) internal successors, (155), 116 states have internal predecessors, (155), 34 states have call successors, (34), 10 states have call predecessors, (34), 9 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2022-12-14 05:13:54,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-12-14 05:13:54,113 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:13:54,114 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:13:54,115 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:13:54,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:13:54,120 INFO L85 PathProgramCache]: Analyzing trace with hash -392830594, now seen corresponding path program 1 times [2022-12-14 05:13:54,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:13:54,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327377522] [2022-12-14 05:13:54,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:13:54,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:13:54,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:13:54,862 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-12-14 05:13:54,863 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:13:54,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327377522] [2022-12-14 05:13:54,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327377522] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:13:54,864 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:13:54,864 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:13:54,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959572245] [2022-12-14 05:13:54,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:13:54,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:13:54,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:13:54,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:13:54,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:13:54,901 INFO L87 Difference]: Start difference. First operand has 145 states, 100 states have (on average 1.55) internal successors, (155), 116 states have internal predecessors, (155), 34 states have call successors, (34), 10 states have call predecessors, (34), 9 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-12-14 05:13:55,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:13:55,086 INFO L93 Difference]: Finished difference Result 391 states and 579 transitions. [2022-12-14 05:13:55,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:13:55,088 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 86 [2022-12-14 05:13:55,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:13:55,096 INFO L225 Difference]: With dead ends: 391 [2022-12-14 05:13:55,096 INFO L226 Difference]: Without dead ends: 238 [2022-12-14 05:13:55,098 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:13:55,101 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 159 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:13:55,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 377 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 05:13:55,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2022-12-14 05:13:55,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 234. [2022-12-14 05:13:55,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 180 states have (on average 1.4444444444444444) internal successors, (260), 185 states have internal predecessors, (260), 37 states have call successors, (37), 17 states have call predecessors, (37), 16 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2022-12-14 05:13:55,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 328 transitions. [2022-12-14 05:13:55,141 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 328 transitions. Word has length 86 [2022-12-14 05:13:55,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:13:55,141 INFO L495 AbstractCegarLoop]: Abstraction has 234 states and 328 transitions. [2022-12-14 05:13:55,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-12-14 05:13:55,141 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 328 transitions. [2022-12-14 05:13:55,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-12-14 05:13:55,143 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:13:55,143 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:13:55,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 05:13:55,144 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:13:55,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:13:55,144 INFO L85 PathProgramCache]: Analyzing trace with hash -361649442, now seen corresponding path program 1 times [2022-12-14 05:13:55,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:13:55,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64290295] [2022-12-14 05:13:55,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:13:55,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:13:55,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:13:55,421 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-12-14 05:13:55,422 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:13:55,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64290295] [2022-12-14 05:13:55,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64290295] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:13:55,422 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:13:55,422 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:13:55,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265182194] [2022-12-14 05:13:55,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:13:55,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:13:55,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:13:55,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:13:55,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:13:55,424 INFO L87 Difference]: Start difference. First operand 234 states and 328 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-12-14 05:13:55,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:13:55,543 INFO L93 Difference]: Finished difference Result 503 states and 717 transitions. [2022-12-14 05:13:55,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:13:55,544 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 89 [2022-12-14 05:13:55,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:13:55,546 INFO L225 Difference]: With dead ends: 503 [2022-12-14 05:13:55,547 INFO L226 Difference]: Without dead ends: 293 [2022-12-14 05:13:55,548 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:13:55,549 INFO L413 NwaCegarLoop]: 188 mSDtfsCounter, 141 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:13:55,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 330 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 05:13:55,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2022-12-14 05:13:55,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 270. [2022-12-14 05:13:55,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 215 states have (on average 1.4883720930232558) internal successors, (320), 220 states have internal predecessors, (320), 39 states have call successors, (39), 16 states have call predecessors, (39), 15 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2022-12-14 05:13:55,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 392 transitions. [2022-12-14 05:13:55,580 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 392 transitions. Word has length 89 [2022-12-14 05:13:55,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:13:55,581 INFO L495 AbstractCegarLoop]: Abstraction has 270 states and 392 transitions. [2022-12-14 05:13:55,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-12-14 05:13:55,581 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 392 transitions. [2022-12-14 05:13:55,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-12-14 05:13:55,583 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:13:55,583 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:13:55,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 05:13:55,583 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:13:55,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:13:55,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1935608347, now seen corresponding path program 1 times [2022-12-14 05:13:55,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:13:55,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418791339] [2022-12-14 05:13:55,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:13:55,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:13:55,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:13:55,865 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2022-12-14 05:13:55,866 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:13:55,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418791339] [2022-12-14 05:13:55,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418791339] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:13:55,866 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:13:55,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:13:55,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600471315] [2022-12-14 05:13:55,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:13:55,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:13:55,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:13:55,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:13:55,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:13:55,868 INFO L87 Difference]: Start difference. First operand 270 states and 392 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-12-14 05:13:55,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:13:55,949 INFO L93 Difference]: Finished difference Result 272 states and 393 transitions. [2022-12-14 05:13:55,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:13:55,950 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 100 [2022-12-14 05:13:55,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:13:55,952 INFO L225 Difference]: With dead ends: 272 [2022-12-14 05:13:55,952 INFO L226 Difference]: Without dead ends: 269 [2022-12-14 05:13:55,952 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:13:55,953 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 157 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:13:55,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 162 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 05:13:55,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2022-12-14 05:13:55,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 269. [2022-12-14 05:13:55,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 215 states have (on average 1.4837209302325582) internal successors, (319), 219 states have internal predecessors, (319), 38 states have call successors, (38), 16 states have call predecessors, (38), 15 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2022-12-14 05:13:55,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 390 transitions. [2022-12-14 05:13:55,974 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 390 transitions. Word has length 100 [2022-12-14 05:13:55,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:13:55,974 INFO L495 AbstractCegarLoop]: Abstraction has 269 states and 390 transitions. [2022-12-14 05:13:55,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-12-14 05:13:55,974 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 390 transitions. [2022-12-14 05:13:55,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-12-14 05:13:55,976 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:13:55,976 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:13:55,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 05:13:55,977 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:13:55,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:13:55,977 INFO L85 PathProgramCache]: Analyzing trace with hash 125697117, now seen corresponding path program 1 times [2022-12-14 05:13:55,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:13:55,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837079183] [2022-12-14 05:13:55,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:13:55,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:13:56,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:13:56,225 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2022-12-14 05:13:56,225 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:13:56,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837079183] [2022-12-14 05:13:56,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837079183] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:13:56,226 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:13:56,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:13:56,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768787442] [2022-12-14 05:13:56,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:13:56,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:13:56,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:13:56,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:13:56,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:13:56,228 INFO L87 Difference]: Start difference. First operand 269 states and 390 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-12-14 05:13:56,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:13:56,310 INFO L93 Difference]: Finished difference Result 271 states and 391 transitions. [2022-12-14 05:13:56,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:13:56,310 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 101 [2022-12-14 05:13:56,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:13:56,312 INFO L225 Difference]: With dead ends: 271 [2022-12-14 05:13:56,312 INFO L226 Difference]: Without dead ends: 268 [2022-12-14 05:13:56,312 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:13:56,313 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 154 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:13:56,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 160 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 05:13:56,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2022-12-14 05:13:56,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 268. [2022-12-14 05:13:56,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 215 states have (on average 1.4790697674418605) internal successors, (318), 218 states have internal predecessors, (318), 37 states have call successors, (37), 16 states have call predecessors, (37), 15 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2022-12-14 05:13:56,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 388 transitions. [2022-12-14 05:13:56,342 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 388 transitions. Word has length 101 [2022-12-14 05:13:56,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:13:56,342 INFO L495 AbstractCegarLoop]: Abstraction has 268 states and 388 transitions. [2022-12-14 05:13:56,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-12-14 05:13:56,343 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 388 transitions. [2022-12-14 05:13:56,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-12-14 05:13:56,344 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:13:56,344 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:13:56,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 05:13:56,345 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:13:56,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:13:56,345 INFO L85 PathProgramCache]: Analyzing trace with hash -398338072, now seen corresponding path program 1 times [2022-12-14 05:13:56,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:13:56,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196312295] [2022-12-14 05:13:56,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:13:56,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:13:56,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:13:56,514 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2022-12-14 05:13:56,514 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:13:56,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196312295] [2022-12-14 05:13:56,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196312295] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:13:56,514 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:13:56,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:13:56,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747188036] [2022-12-14 05:13:56,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:13:56,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:13:56,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:13:56,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:13:56,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:13:56,516 INFO L87 Difference]: Start difference. First operand 268 states and 388 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-12-14 05:13:56,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:13:56,586 INFO L93 Difference]: Finished difference Result 270 states and 389 transitions. [2022-12-14 05:13:56,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:13:56,587 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 102 [2022-12-14 05:13:56,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:13:56,589 INFO L225 Difference]: With dead ends: 270 [2022-12-14 05:13:56,589 INFO L226 Difference]: Without dead ends: 267 [2022-12-14 05:13:56,589 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:13:56,590 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 151 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:13:56,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 158 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 05:13:56,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2022-12-14 05:13:56,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 267. [2022-12-14 05:13:56,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 215 states have (on average 1.4744186046511627) internal successors, (317), 217 states have internal predecessors, (317), 36 states have call successors, (36), 16 states have call predecessors, (36), 15 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2022-12-14 05:13:56,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 386 transitions. [2022-12-14 05:13:56,610 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 386 transitions. Word has length 102 [2022-12-14 05:13:56,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:13:56,610 INFO L495 AbstractCegarLoop]: Abstraction has 267 states and 386 transitions. [2022-12-14 05:13:56,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-12-14 05:13:56,611 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 386 transitions. [2022-12-14 05:13:56,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-12-14 05:13:56,618 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:13:56,619 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:13:56,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 05:13:56,619 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:13:56,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:13:56,620 INFO L85 PathProgramCache]: Analyzing trace with hash 536445120, now seen corresponding path program 1 times [2022-12-14 05:13:56,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:13:56,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021324145] [2022-12-14 05:13:56,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:13:56,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:13:56,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:13:56,808 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2022-12-14 05:13:56,809 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:13:56,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021324145] [2022-12-14 05:13:56,809 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021324145] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:13:56,809 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:13:56,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:13:56,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114477927] [2022-12-14 05:13:56,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:13:56,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:13:56,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:13:56,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:13:56,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:13:56,811 INFO L87 Difference]: Start difference. First operand 267 states and 386 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-12-14 05:13:56,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:13:56,928 INFO L93 Difference]: Finished difference Result 619 states and 899 transitions. [2022-12-14 05:13:56,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:13:56,928 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 103 [2022-12-14 05:13:56,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:13:56,932 INFO L225 Difference]: With dead ends: 619 [2022-12-14 05:13:56,932 INFO L226 Difference]: Without dead ends: 435 [2022-12-14 05:13:56,933 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:13:56,933 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 141 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:13:56,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 312 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 05:13:56,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2022-12-14 05:13:56,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 432. [2022-12-14 05:13:56,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 352 states have (on average 1.4801136363636365) internal successors, (521), 354 states have internal predecessors, (521), 55 states have call successors, (55), 26 states have call predecessors, (55), 24 states have return successors, (52), 51 states have call predecessors, (52), 52 states have call successors, (52) [2022-12-14 05:13:56,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 628 transitions. [2022-12-14 05:13:56,959 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 628 transitions. Word has length 103 [2022-12-14 05:13:56,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:13:56,960 INFO L495 AbstractCegarLoop]: Abstraction has 432 states and 628 transitions. [2022-12-14 05:13:56,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-12-14 05:13:56,960 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 628 transitions. [2022-12-14 05:13:56,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-12-14 05:13:56,962 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:13:56,962 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:13:56,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 05:13:56,962 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:13:56,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:13:56,963 INFO L85 PathProgramCache]: Analyzing trace with hash -2124175255, now seen corresponding path program 1 times [2022-12-14 05:13:56,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:13:56,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848799550] [2022-12-14 05:13:56,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:13:56,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:13:57,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:13:57,166 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2022-12-14 05:13:57,166 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:13:57,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848799550] [2022-12-14 05:13:57,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848799550] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:13:57,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:13:57,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:13:57,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937400071] [2022-12-14 05:13:57,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:13:57,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:13:57,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:13:57,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:13:57,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:13:57,168 INFO L87 Difference]: Start difference. First operand 432 states and 628 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2022-12-14 05:13:57,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:13:57,309 INFO L93 Difference]: Finished difference Result 778 states and 1130 transitions. [2022-12-14 05:13:57,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:13:57,309 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 117 [2022-12-14 05:13:57,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:13:57,313 INFO L225 Difference]: With dead ends: 778 [2022-12-14 05:13:57,313 INFO L226 Difference]: Without dead ends: 434 [2022-12-14 05:13:57,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:13:57,315 INFO L413 NwaCegarLoop]: 279 mSDtfsCounter, 150 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:13:57,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 424 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 05:13:57,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2022-12-14 05:13:57,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 432. [2022-12-14 05:13:57,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 352 states have (on average 1.4744318181818181) internal successors, (519), 354 states have internal predecessors, (519), 55 states have call successors, (55), 26 states have call predecessors, (55), 24 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2022-12-14 05:13:57,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 625 transitions. [2022-12-14 05:13:57,350 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 625 transitions. Word has length 117 [2022-12-14 05:13:57,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:13:57,350 INFO L495 AbstractCegarLoop]: Abstraction has 432 states and 625 transitions. [2022-12-14 05:13:57,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2022-12-14 05:13:57,350 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 625 transitions. [2022-12-14 05:13:57,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-12-14 05:13:57,352 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:13:57,353 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:13:57,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 05:13:57,353 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:13:57,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:13:57,353 INFO L85 PathProgramCache]: Analyzing trace with hash 825207445, now seen corresponding path program 1 times [2022-12-14 05:13:57,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:13:57,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010283972] [2022-12-14 05:13:57,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:13:57,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:13:57,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:13:57,801 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2022-12-14 05:13:57,801 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:13:57,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010283972] [2022-12-14 05:13:57,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010283972] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:13:57,802 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:13:57,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 05:13:57,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842422235] [2022-12-14 05:13:57,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:13:57,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 05:13:57,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:13:57,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 05:13:57,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-14 05:13:57,803 INFO L87 Difference]: Start difference. First operand 432 states and 625 transitions. Second operand has 7 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) [2022-12-14 05:13:58,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:13:58,091 INFO L93 Difference]: Finished difference Result 1038 states and 1545 transitions. [2022-12-14 05:13:58,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 05:13:58,092 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) Word has length 121 [2022-12-14 05:13:58,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:13:58,095 INFO L225 Difference]: With dead ends: 1038 [2022-12-14 05:13:58,095 INFO L226 Difference]: Without dead ends: 694 [2022-12-14 05:13:58,096 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-14 05:13:58,097 INFO L413 NwaCegarLoop]: 368 mSDtfsCounter, 205 mSDsluCounter, 1522 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 1890 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 05:13:58,097 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 1890 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 05:13:58,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 694 states. [2022-12-14 05:13:58,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 694 to 432. [2022-12-14 05:13:58,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 353 states have (on average 1.4702549575070822) internal successors, (519), 354 states have internal predecessors, (519), 54 states have call successors, (54), 26 states have call predecessors, (54), 24 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2022-12-14 05:13:58,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 624 transitions. [2022-12-14 05:13:58,131 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 624 transitions. Word has length 121 [2022-12-14 05:13:58,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:13:58,131 INFO L495 AbstractCegarLoop]: Abstraction has 432 states and 624 transitions. [2022-12-14 05:13:58,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) [2022-12-14 05:13:58,132 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 624 transitions. [2022-12-14 05:13:58,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-12-14 05:13:58,134 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:13:58,134 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:13:58,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 05:13:58,134 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:13:58,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:13:58,134 INFO L85 PathProgramCache]: Analyzing trace with hash -275328994, now seen corresponding path program 1 times [2022-12-14 05:13:58,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:13:58,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115145944] [2022-12-14 05:13:58,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:13:58,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:13:58,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:13:58,505 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2022-12-14 05:13:58,505 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:13:58,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115145944] [2022-12-14 05:13:58,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115145944] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:13:58,505 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:13:58,505 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 05:13:58,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239967198] [2022-12-14 05:13:58,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:13:58,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 05:13:58,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:13:58,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 05:13:58,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 05:13:58,507 INFO L87 Difference]: Start difference. First operand 432 states and 624 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 05:13:58,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:13:58,643 INFO L93 Difference]: Finished difference Result 560 states and 830 transitions. [2022-12-14 05:13:58,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 05:13:58,643 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 130 [2022-12-14 05:13:58,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:13:58,644 INFO L225 Difference]: With dead ends: 560 [2022-12-14 05:13:58,644 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 05:13:58,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 05:13:58,645 INFO L413 NwaCegarLoop]: 249 mSDtfsCounter, 195 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:13:58,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 550 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 05:13:58,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 05:13:58,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 05:13:58,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:13:58,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 05:13:58,646 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 130 [2022-12-14 05:13:58,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:13:58,646 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 05:13:58,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 05:13:58,647 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 05:13:58,647 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 05:13:58,649 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-14 05:13:58,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 05:13:58,650 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 05:13:59,628 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 7015 7017) the Hoare annotation is: true [2022-12-14 05:13:59,628 INFO L899 garLoopResultBuilder]: For program point usbnet_disconnectEXIT(lines 7015 7017) no Hoare annotation was computed. [2022-12-14 05:13:59,629 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 6853 6863) the Hoare annotation is: (or (not (= |old(~ldv_mutex_udev~0)| 1)) (not (= ~ldv_mutex_lock~0 1)) (not (= ~ldv_mutex_i_mutex_of_inode~0 1)) (not (= 1 ~ldv_mutex_mutex_of_device~0)) (= ~ldv_mutex_udev~0 1)) [2022-12-14 05:13:59,629 INFO L899 garLoopResultBuilder]: For program point L6856-1(lines 6856 6859) no Hoare annotation was computed. [2022-12-14 05:13:59,629 INFO L899 garLoopResultBuilder]: For program point L6856(lines 6856 6859) no Hoare annotation was computed. [2022-12-14 05:13:59,629 INFO L895 garLoopResultBuilder]: At program point L6857(line 6857) the Hoare annotation is: (or (not (= |old(~ldv_mutex_udev~0)| 1)) (not (= ~ldv_mutex_lock~0 1)) (not (= ~ldv_mutex_i_mutex_of_inode~0 1)) (not (= 1 ~ldv_mutex_mutex_of_device~0))) [2022-12-14 05:13:59,629 INFO L899 garLoopResultBuilder]: For program point ldv_mutex_lock_udevEXIT(lines 6853 6863) no Hoare annotation was computed. [2022-12-14 05:13:59,629 INFO L899 garLoopResultBuilder]: For program point L5762-1(line 5762) no Hoare annotation was computed. [2022-12-14 05:13:59,629 INFO L899 garLoopResultBuilder]: For program point ldv_init_zallocEXIT(lines 5757 5767) no Hoare annotation was computed. [2022-12-14 05:13:59,629 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 5757 5767) the Hoare annotation is: true [2022-12-14 05:13:59,629 INFO L899 garLoopResultBuilder]: For program point L5764-1(line 5764) no Hoare annotation was computed. [2022-12-14 05:13:59,629 INFO L902 garLoopResultBuilder]: At program point L5762(line 5762) the Hoare annotation is: true [2022-12-14 05:13:59,630 INFO L902 garLoopResultBuilder]: At program point L5764(line 5764) the Hoare annotation is: true [2022-12-14 05:13:59,630 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 5720 5722) the Hoare annotation is: true [2022-12-14 05:13:59,630 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 5720 5722) no Hoare annotation was computed. [2022-12-14 05:13:59,630 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 5776 5783) the Hoare annotation is: true [2022-12-14 05:13:59,630 INFO L899 garLoopResultBuilder]: For program point ldv_undef_intEXIT(lines 5776 5783) no Hoare annotation was computed. [2022-12-14 05:13:59,630 INFO L902 garLoopResultBuilder]: At program point ERROR(lines 6329 6335) the Hoare annotation is: true [2022-12-14 05:13:59,630 INFO L899 garLoopResultBuilder]: For program point ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6333) no Hoare annotation was computed. [2022-12-14 05:13:59,630 INFO L899 garLoopResultBuilder]: For program point ldv_errorEXIT(lines 6329 6335) no Hoare annotation was computed. [2022-12-14 05:13:59,630 INFO L902 garLoopResultBuilder]: At program point LDV_STOP(lines 5792 5798) the Hoare annotation is: true [2022-12-14 05:13:59,630 INFO L899 garLoopResultBuilder]: For program point ldv_stopEXIT(lines 5792 5798) no Hoare annotation was computed. [2022-12-14 05:13:59,630 INFO L899 garLoopResultBuilder]: For program point L6047(lines 6047 6062) no Hoare annotation was computed. [2022-12-14 05:13:59,630 INFO L899 garLoopResultBuilder]: For program point L6080-2(lines 6067 6122) no Hoare annotation was computed. [2022-12-14 05:13:59,631 INFO L899 garLoopResultBuilder]: For program point L6080(lines 6080 6085) no Hoare annotation was computed. [2022-12-14 05:13:59,631 INFO L895 garLoopResultBuilder]: At program point m5632_recover_returnLabel#1(lines 5843 5860) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2022-12-14 05:13:59,631 INFO L899 garLoopResultBuilder]: For program point L6213(line 6213) no Hoare annotation was computed. [2022-12-14 05:13:59,631 INFO L895 garLoopResultBuilder]: At program point L6081(line 6081) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2022-12-14 05:13:59,631 INFO L899 garLoopResultBuilder]: For program point L6081-1(line 6081) no Hoare annotation was computed. [2022-12-14 05:13:59,631 INFO L899 garLoopResultBuilder]: For program point L6973(lines 6964 6982) no Hoare annotation was computed. [2022-12-14 05:13:59,631 INFO L902 garLoopResultBuilder]: At program point L6214(line 6214) the Hoare annotation is: true [2022-12-14 05:13:59,631 INFO L895 garLoopResultBuilder]: At program point L6974(line 6974) the Hoare annotation is: false [2022-12-14 05:13:59,631 INFO L899 garLoopResultBuilder]: For program point L6049(lines 6049 6059) no Hoare annotation was computed. [2022-12-14 05:13:59,631 INFO L899 garLoopResultBuilder]: For program point L6050(line 6050) no Hoare annotation was computed. [2022-12-14 05:13:59,632 INFO L895 garLoopResultBuilder]: At program point L5852(lines 5852 5855) the Hoare annotation is: (let ((.cse0 (= 1 ~ldv_mutex_mutex_of_device~0)) (.cse1 (= ~ldv_mutex_i_mutex_of_inode~0 1)) (.cse2 (= ~ldv_mutex_lock~0 1))) (or (and .cse0 (= |ULTIMATE.start_m5632_recover_~r~0#1| 0) .cse1 (= |ULTIMATE.start_ldv_usb_lock_device_for_reset_udev_#res#1| 0) .cse2 (= 2 ~ldv_mutex_udev~0)) (and .cse0 .cse1 .cse2 (<= (+ |ULTIMATE.start_ldv_usb_lock_device_for_reset_udev_#res#1| 1) 0) (<= (+ |ULTIMATE.start_m5632_recover_~r~0#1| 1) 0) (= ~ldv_mutex_udev~0 1)))) [2022-12-14 05:13:59,632 INFO L899 garLoopResultBuilder]: For program point L6051(lines 6051 6055) no Hoare annotation was computed. [2022-12-14 05:13:59,632 INFO L899 garLoopResultBuilder]: For program point L6184(line 6184) no Hoare annotation was computed. [2022-12-14 05:13:59,632 INFO L899 garLoopResultBuilder]: For program point L6052-1(line 6052) no Hoare annotation was computed. [2022-12-14 05:13:59,632 INFO L895 garLoopResultBuilder]: At program point L6052(line 6052) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2022-12-14 05:13:59,632 INFO L902 garLoopResultBuilder]: At program point L6977(lines 6962 6983) the Hoare annotation is: true [2022-12-14 05:13:59,632 INFO L899 garLoopResultBuilder]: For program point L6185(lines 6185 6200) no Hoare annotation was computed. [2022-12-14 05:13:59,632 INFO L895 garLoopResultBuilder]: At program point L6978(line 6978) the Hoare annotation is: false [2022-12-14 05:13:59,632 INFO L899 garLoopResultBuilder]: For program point L6945-1(line 6945) no Hoare annotation was computed. [2022-12-14 05:13:59,632 INFO L895 garLoopResultBuilder]: At program point L6945(line 6945) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2022-12-14 05:13:59,633 INFO L895 garLoopResultBuilder]: At program point L6087(line 6087) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2022-12-14 05:13:59,633 INFO L899 garLoopResultBuilder]: For program point L6087-1(line 6087) no Hoare annotation was computed. [2022-12-14 05:13:59,633 INFO L899 garLoopResultBuilder]: For program point L6120(line 6120) no Hoare annotation was computed. [2022-12-14 05:13:59,633 INFO L899 garLoopResultBuilder]: For program point L6946(lines 6946 6952) no Hoare annotation was computed. [2022-12-14 05:13:59,633 INFO L899 garLoopResultBuilder]: For program point L6187(lines 6187 6197) no Hoare annotation was computed. [2022-12-14 05:13:59,633 INFO L899 garLoopResultBuilder]: For program point L6220(line 6220) no Hoare annotation was computed. [2022-12-14 05:13:59,633 INFO L902 garLoopResultBuilder]: At program point L6121(line 6121) the Hoare annotation is: true [2022-12-14 05:13:59,633 INFO L899 garLoopResultBuilder]: For program point L6947-1(line 6947) no Hoare annotation was computed. [2022-12-14 05:13:59,633 INFO L895 garLoopResultBuilder]: At program point L6947(line 6947) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2022-12-14 05:13:59,633 INFO L902 garLoopResultBuilder]: At program point L6221(line 6221) the Hoare annotation is: true [2022-12-14 05:13:59,633 INFO L899 garLoopResultBuilder]: For program point L6188(line 6188) no Hoare annotation was computed. [2022-12-14 05:13:59,633 INFO L899 garLoopResultBuilder]: For program point L6189(lines 6189 6193) no Hoare annotation was computed. [2022-12-14 05:13:59,633 INFO L899 garLoopResultBuilder]: For program point L6057(line 6057) no Hoare annotation was computed. [2022-12-14 05:13:59,634 INFO L895 garLoopResultBuilder]: At program point L6190(line 6190) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2022-12-14 05:13:59,634 INFO L902 garLoopResultBuilder]: At program point L6058(line 6058) the Hoare annotation is: true [2022-12-14 05:13:59,634 INFO L899 garLoopResultBuilder]: For program point L6190-1(line 6190) no Hoare annotation was computed. [2022-12-14 05:13:59,634 INFO L895 garLoopResultBuilder]: At program point L6950(line 6950) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2022-12-14 05:13:59,634 INFO L895 garLoopResultBuilder]: At program point L6025(lines 6002 6228) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2022-12-14 05:13:59,634 INFO L895 garLoopResultBuilder]: At program point L6917-1(lines 6917 6920) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= |ULTIMATE.start_m5632_recover_~r~0#1| 0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= |ULTIMATE.start_ldv_usb_lock_device_for_reset_udev_#res#1| 0) (= ~ldv_mutex_lock~0 1) (= 2 ~ldv_mutex_udev~0)) [2022-12-14 05:13:59,634 INFO L899 garLoopResultBuilder]: For program point L6950-1(line 6950) no Hoare annotation was computed. [2022-12-14 05:13:59,634 INFO L899 garLoopResultBuilder]: For program point L6917(lines 6917 6920) no Hoare annotation was computed. [2022-12-14 05:13:59,634 INFO L895 garLoopResultBuilder]: At program point main_ldv_final#1(lines 6002 6228) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2022-12-14 05:13:59,634 INFO L895 garLoopResultBuilder]: At program point L6918(line 6918) the Hoare annotation is: false [2022-12-14 05:13:59,634 INFO L899 garLoopResultBuilder]: For program point L6159(line 6159) no Hoare annotation was computed. [2022-12-14 05:13:59,635 INFO L899 garLoopResultBuilder]: For program point L6027(lines 6027 6222) no Hoare annotation was computed. [2022-12-14 05:13:59,635 INFO L895 garLoopResultBuilder]: At program point L6093(line 6093) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2022-12-14 05:13:59,635 INFO L899 garLoopResultBuilder]: For program point L6127(line 6127) no Hoare annotation was computed. [2022-12-14 05:13:59,635 INFO L902 garLoopResultBuilder]: At program point L6160(line 6160) the Hoare annotation is: true [2022-12-14 05:13:59,635 INFO L899 garLoopResultBuilder]: For program point L6028(line 6028) no Hoare annotation was computed. [2022-12-14 05:13:59,635 INFO L899 garLoopResultBuilder]: For program point L6128(lines 6128 6164) no Hoare annotation was computed. [2022-12-14 05:13:59,635 INFO L899 garLoopResultBuilder]: For program point L6029(lines 6029 6044) no Hoare annotation was computed. [2022-12-14 05:13:59,635 INFO L899 garLoopResultBuilder]: For program point L6195(line 6195) no Hoare annotation was computed. [2022-12-14 05:13:59,635 INFO L899 garLoopResultBuilder]: For program point L6130(lines 6130 6161) no Hoare annotation was computed. [2022-12-14 05:13:59,635 INFO L902 garLoopResultBuilder]: At program point L6196(line 6196) the Hoare annotation is: true [2022-12-14 05:13:59,635 INFO L899 garLoopResultBuilder]: For program point L6031(lines 6031 6041) no Hoare annotation was computed. [2022-12-14 05:13:59,635 INFO L899 garLoopResultBuilder]: For program point L6064(line 6064) no Hoare annotation was computed. [2022-12-14 05:13:59,635 INFO L899 garLoopResultBuilder]: For program point L6131(line 6131) no Hoare annotation was computed. [2022-12-14 05:13:59,635 INFO L899 garLoopResultBuilder]: For program point L6065(lines 6065 6125) no Hoare annotation was computed. [2022-12-14 05:13:59,636 INFO L899 garLoopResultBuilder]: For program point L6032(line 6032) no Hoare annotation was computed. [2022-12-14 05:13:59,636 INFO L895 garLoopResultBuilder]: At program point L6132(lines 6132 6137) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2022-12-14 05:13:59,636 INFO L899 garLoopResultBuilder]: For program point L6033(lines 6033 6037) no Hoare annotation was computed. [2022-12-14 05:13:59,636 INFO L899 garLoopResultBuilder]: For program point L6166(line 6166) no Hoare annotation was computed. [2022-12-14 05:13:59,636 INFO L899 garLoopResultBuilder]: For program point L6067(lines 6067 6122) no Hoare annotation was computed. [2022-12-14 05:13:59,636 INFO L895 garLoopResultBuilder]: At program point L6100(line 6100) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2022-12-14 05:13:59,636 INFO L899 garLoopResultBuilder]: For program point L6167(lines 6167 6182) no Hoare annotation was computed. [2022-12-14 05:13:59,636 INFO L895 garLoopResultBuilder]: At program point L6068(line 6068) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2022-12-14 05:13:59,636 INFO L895 garLoopResultBuilder]: At program point L6003(line 6003) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_state_variable_6~0 0) (= ~ldv_mutex_udev~0 1)) [2022-12-14 05:13:59,636 INFO L899 garLoopResultBuilder]: For program point L6003-1(line 6003) no Hoare annotation was computed. [2022-12-14 05:13:59,636 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-14 05:13:59,636 INFO L899 garLoopResultBuilder]: For program point L6202(line 6202) no Hoare annotation was computed. [2022-12-14 05:13:59,637 INFO L899 garLoopResultBuilder]: For program point L6169(lines 6169 6179) no Hoare annotation was computed. [2022-12-14 05:13:59,637 INFO L899 garLoopResultBuilder]: For program point L6203(lines 6203 6218) no Hoare annotation was computed. [2022-12-14 05:13:59,637 INFO L899 garLoopResultBuilder]: For program point L6170(line 6170) no Hoare annotation was computed. [2022-12-14 05:13:59,637 INFO L895 garLoopResultBuilder]: At program point L6005(line 6005) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_state_variable_6~0 0) (= ~ldv_mutex_udev~0 1)) [2022-12-14 05:13:59,637 INFO L899 garLoopResultBuilder]: For program point L6005-1(line 6005) no Hoare annotation was computed. [2022-12-14 05:13:59,637 INFO L899 garLoopResultBuilder]: For program point L6171(lines 6171 6175) no Hoare annotation was computed. [2022-12-14 05:13:59,637 INFO L899 garLoopResultBuilder]: For program point L6039(line 6039) no Hoare annotation was computed. [2022-12-14 05:13:59,637 INFO L899 garLoopResultBuilder]: For program point L6139(line 6139) no Hoare annotation was computed. [2022-12-14 05:13:59,637 INFO L899 garLoopResultBuilder]: For program point L6172-1(line 6172) no Hoare annotation was computed. [2022-12-14 05:13:59,637 INFO L899 garLoopResultBuilder]: For program point L6205(lines 6205 6215) no Hoare annotation was computed. [2022-12-14 05:13:59,637 INFO L895 garLoopResultBuilder]: At program point L6172(line 6172) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2022-12-14 05:13:59,637 INFO L895 garLoopResultBuilder]: At program point L6007(line 6007) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_state_variable_6~0 0) (= ~ldv_mutex_udev~0 1)) [2022-12-14 05:13:59,638 INFO L899 garLoopResultBuilder]: For program point L6007-1(line 6007) no Hoare annotation was computed. [2022-12-14 05:13:59,638 INFO L895 garLoopResultBuilder]: At program point L5974(line 5974) the Hoare annotation is: (and (= ~ldv_state_variable_0~0 1) (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2022-12-14 05:13:59,638 INFO L902 garLoopResultBuilder]: At program point L6040(line 6040) the Hoare annotation is: true [2022-12-14 05:13:59,638 INFO L895 garLoopResultBuilder]: At program point L5974-1(line 5974) the Hoare annotation is: (and (= ~ldv_state_variable_0~0 1) (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2022-12-14 05:13:59,638 INFO L899 garLoopResultBuilder]: For program point L6965-1(lines 6964 6982) no Hoare annotation was computed. [2022-12-14 05:13:59,638 INFO L899 garLoopResultBuilder]: For program point L6965(lines 6965 6968) no Hoare annotation was computed. [2022-12-14 05:13:59,638 INFO L899 garLoopResultBuilder]: For program point L6206(line 6206) no Hoare annotation was computed. [2022-12-14 05:13:59,638 INFO L895 garLoopResultBuilder]: At program point L6140(lines 6140 6157) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2022-12-14 05:13:59,638 INFO L895 garLoopResultBuilder]: At program point L6966(line 6966) the Hoare annotation is: false [2022-12-14 05:13:59,638 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-14 05:13:59,638 INFO L899 garLoopResultBuilder]: For program point L6207(lines 6207 6211) no Hoare annotation was computed. [2022-12-14 05:13:59,638 INFO L895 garLoopResultBuilder]: At program point L6009(line 6009) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_state_variable_6~0 0) (= ~ldv_mutex_udev~0 1)) [2022-12-14 05:13:59,639 INFO L899 garLoopResultBuilder]: For program point L6009-1(line 6009) no Hoare annotation was computed. [2022-12-14 05:13:59,639 INFO L899 garLoopResultBuilder]: For program point L6208-1(line 6208) no Hoare annotation was computed. [2022-12-14 05:13:59,639 INFO L895 garLoopResultBuilder]: At program point L6208(line 6208) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2022-12-14 05:13:59,639 INFO L899 garLoopResultBuilder]: For program point L6142-2(lines 6140 6156) no Hoare annotation was computed. [2022-12-14 05:13:59,639 INFO L895 garLoopResultBuilder]: At program point ldv_usb_lock_device_for_reset_udev_returnLabel#1(lines 6940 6954) the Hoare annotation is: (let ((.cse0 (= 1 ~ldv_mutex_mutex_of_device~0)) (.cse1 (= ~ldv_mutex_i_mutex_of_inode~0 1)) (.cse2 (= ~ldv_mutex_lock~0 1))) (or (and .cse0 .cse1 (= |ULTIMATE.start_ldv_usb_lock_device_for_reset_udev_#res#1| 0) .cse2 (= 2 ~ldv_mutex_udev~0)) (and .cse0 .cse1 .cse2 (<= (+ |ULTIMATE.start_ldv_usb_lock_device_for_reset_udev_#res#1| 1) 0) (= ~ldv_mutex_udev~0 1)))) [2022-12-14 05:13:59,639 INFO L895 garLoopResultBuilder]: At program point L6110(line 6110) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2022-12-14 05:13:59,639 INFO L895 garLoopResultBuilder]: At program point L6011(line 6011) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_state_variable_6~0 0) (= ~ldv_mutex_udev~0 1)) [2022-12-14 05:13:59,639 INFO L895 garLoopResultBuilder]: At program point L-1-2(line -1) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_state_variable_6~0 0) (= ~ldv_mutex_udev~0 1)) [2022-12-14 05:13:59,639 INFO L899 garLoopResultBuilder]: For program point L6011-1(line 6011) no Hoare annotation was computed. [2022-12-14 05:13:59,639 INFO L899 garLoopResultBuilder]: For program point L6969(lines 6964 6982) no Hoare annotation was computed. [2022-12-14 05:13:59,639 INFO L899 garLoopResultBuilder]: For program point L6177(line 6177) no Hoare annotation was computed. [2022-12-14 05:13:59,640 INFO L895 garLoopResultBuilder]: At program point L6970(line 6970) the Hoare annotation is: false [2022-12-14 05:13:59,640 INFO L902 garLoopResultBuilder]: At program point L6178(line 6178) the Hoare annotation is: true [2022-12-14 05:13:59,640 INFO L899 garLoopResultBuilder]: For program point L6079(line 6079) no Hoare annotation was computed. [2022-12-14 05:13:59,640 INFO L899 garLoopResultBuilder]: For program point L6046(line 6046) no Hoare annotation was computed. [2022-12-14 05:13:59,640 INFO L895 garLoopResultBuilder]: At program point L6013(line 6013) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_state_variable_6~0 0) (= ~ldv_mutex_udev~0 1)) [2022-12-14 05:13:59,640 INFO L895 garLoopResultBuilder]: At program point L6013-1(line 6013) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_state_variable_6~0 0) (= ~ldv_mutex_udev~0 1)) [2022-12-14 05:13:59,640 INFO L899 garLoopResultBuilder]: For program point #Ultimate.meminitEXIT(line -1) no Hoare annotation was computed. [2022-12-14 05:13:59,640 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2022-12-14 05:13:59,640 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 5837 5842) the Hoare annotation is: true [2022-12-14 05:13:59,640 INFO L899 garLoopResultBuilder]: For program point always_connectedEXIT(lines 5837 5842) no Hoare annotation was computed. [2022-12-14 05:13:59,640 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 6336 6349) the Hoare annotation is: true [2022-12-14 05:13:59,640 INFO L899 garLoopResultBuilder]: For program point L6343-1(lines 6343 6346) no Hoare annotation was computed. [2022-12-14 05:13:59,641 INFO L899 garLoopResultBuilder]: For program point L6343(lines 6343 6346) no Hoare annotation was computed. [2022-12-14 05:13:59,641 INFO L902 garLoopResultBuilder]: At program point L6344(line 6344) the Hoare annotation is: true [2022-12-14 05:13:59,641 INFO L899 garLoopResultBuilder]: For program point L6341-1(line 6341) no Hoare annotation was computed. [2022-12-14 05:13:59,641 INFO L899 garLoopResultBuilder]: For program point ldv_undef_int_negativeEXIT(lines 6336 6349) no Hoare annotation was computed. [2022-12-14 05:13:59,641 INFO L902 garLoopResultBuilder]: At program point L6341(line 6341) the Hoare annotation is: true [2022-12-14 05:13:59,644 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:13:59,646 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 05:13:59,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 05:13:59 BoogieIcfgContainer [2022-12-14 05:13:59,661 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 05:13:59,661 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 05:13:59,661 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 05:13:59,661 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 05:13:59,662 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:13:54" (3/4) ... [2022-12-14 05:13:59,665 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 05:13:59,670 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure usbnet_disconnect [2022-12-14 05:13:59,670 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_error [2022-12-14 05:13:59,670 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_mutex_lock_udev [2022-12-14 05:13:59,670 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_stop [2022-12-14 05:13:59,670 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_init_zalloc [2022-12-14 05:13:59,670 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2022-12-14 05:13:59,670 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_undef_int [2022-12-14 05:13:59,670 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.meminit [2022-12-14 05:13:59,670 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure always_connected [2022-12-14 05:13:59,670 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_undef_int_negative [2022-12-14 05:13:59,682 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 85 nodes and edges [2022-12-14 05:13:59,683 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2022-12-14 05:13:59,684 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-12-14 05:13:59,685 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-14 05:13:59,686 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 05:13:59,708 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((1 == ldv_mutex_mutex_of_device && r == 0) && ldv_mutex_i_mutex_of_inode == 1) && \result == 0) && ldv_mutex_lock == 1) && 2 == ldv_mutex_udev [2022-12-14 05:13:59,708 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((1 == ldv_mutex_mutex_of_device && ldv_mutex_i_mutex_of_inode == 1) && \result == 0) && ldv_mutex_lock == 1) && 2 == ldv_mutex_udev) || ((((1 == ldv_mutex_mutex_of_device && ldv_mutex_i_mutex_of_inode == 1) && ldv_mutex_lock == 1) && \result + 1 <= 0) && ldv_mutex_udev == 1) [2022-12-14 05:13:59,709 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((1 == ldv_mutex_mutex_of_device && r == 0) && ldv_mutex_i_mutex_of_inode == 1) && \result == 0) && ldv_mutex_lock == 1) && 2 == ldv_mutex_udev) || (((((1 == ldv_mutex_mutex_of_device && ldv_mutex_i_mutex_of_inode == 1) && ldv_mutex_lock == 1) && \result + 1 <= 0) && r + 1 <= 0) && ldv_mutex_udev == 1) [2022-12-14 05:13:59,837 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a108855a-2960-45cb-be6b-7d863b61a3ba/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 05:13:59,837 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 05:13:59,838 INFO L158 Benchmark]: Toolchain (without parser) took 8096.58ms. Allocated memory was 132.1MB in the beginning and 306.2MB in the end (delta: 174.1MB). Free memory was 82.9MB in the beginning and 196.7MB in the end (delta: -113.8MB). Peak memory consumption was 59.1MB. Max. memory is 16.1GB. [2022-12-14 05:13:59,838 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 132.1MB. Free memory is still 103.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 05:13:59,838 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1037.97ms. Allocated memory was 132.1MB in the beginning and 174.1MB in the end (delta: 41.9MB). Free memory was 82.9MB in the beginning and 116.6MB in the end (delta: -33.7MB). Peak memory consumption was 65.9MB. Max. memory is 16.1GB. [2022-12-14 05:13:59,838 INFO L158 Benchmark]: Boogie Procedure Inliner took 84.27ms. Allocated memory is still 174.1MB. Free memory was 116.4MB in the beginning and 108.3MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-14 05:13:59,839 INFO L158 Benchmark]: Boogie Preprocessor took 54.67ms. Allocated memory is still 174.1MB. Free memory was 108.3MB in the beginning and 98.7MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 05:13:59,839 INFO L158 Benchmark]: RCFGBuilder took 1102.84ms. Allocated memory was 174.1MB in the beginning and 209.7MB in the end (delta: 35.7MB). Free memory was 98.7MB in the beginning and 125.0MB in the end (delta: -26.3MB). Peak memory consumption was 48.0MB. Max. memory is 16.1GB. [2022-12-14 05:13:59,839 INFO L158 Benchmark]: TraceAbstraction took 5634.49ms. Allocated memory was 209.7MB in the beginning and 306.2MB in the end (delta: 96.5MB). Free memory was 124.0MB in the beginning and 228.1MB in the end (delta: -104.1MB). Peak memory consumption was 157.0MB. Max. memory is 16.1GB. [2022-12-14 05:13:59,839 INFO L158 Benchmark]: Witness Printer took 176.24ms. Allocated memory is still 306.2MB. Free memory was 228.1MB in the beginning and 196.7MB in the end (delta: 31.4MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-12-14 05:13:59,841 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 132.1MB. Free memory is still 103.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1037.97ms. Allocated memory was 132.1MB in the beginning and 174.1MB in the end (delta: 41.9MB). Free memory was 82.9MB in the beginning and 116.6MB in the end (delta: -33.7MB). Peak memory consumption was 65.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 84.27ms. Allocated memory is still 174.1MB. Free memory was 116.4MB in the beginning and 108.3MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.67ms. Allocated memory is still 174.1MB. Free memory was 108.3MB in the beginning and 98.7MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * RCFGBuilder took 1102.84ms. Allocated memory was 174.1MB in the beginning and 209.7MB in the end (delta: 35.7MB). Free memory was 98.7MB in the beginning and 125.0MB in the end (delta: -26.3MB). Peak memory consumption was 48.0MB. Max. memory is 16.1GB. * TraceAbstraction took 5634.49ms. Allocated memory was 209.7MB in the beginning and 306.2MB in the end (delta: 96.5MB). Free memory was 124.0MB in the beginning and 228.1MB in the end (delta: -104.1MB). Peak memory consumption was 157.0MB. Max. memory is 16.1GB. * Witness Printer took 176.24ms. Allocated memory is still 306.2MB. Free memory was 228.1MB in the beginning and 196.7MB in the end (delta: 31.4MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 6333]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 146 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.6s, OverallIterations: 9, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1460 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1453 mSDsluCounter, 4363 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2425 mSDsCounter, 39 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 542 IncrementalHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 39 mSolverCounterUnsat, 1938 mSDtfsCounter, 542 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=432occurred in iteration=6, InterpolantAutomatonStates: 33, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 294 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 60 LocationsWithAnnotation, 356 PreInvPairs, 453 NumberOfFragments, 555 HoareAnnotationTreeSize, 356 FomulaSimplifications, 128 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 60 FomulaSimplificationsInter, 3288 FormulaSimplificationTreeSizeReductionInter, 0.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 949 NumberOfCodeBlocks, 949 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 940 ConstructedInterpolants, 0 QuantifiedInterpolants, 1224 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 1793/1793 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 6093]: Loop Invariant Derived loop invariant: ((1 == ldv_mutex_mutex_of_device && ldv_mutex_i_mutex_of_inode == 1) && ldv_mutex_lock == 1) && ldv_mutex_udev == 1 - InvariantResult [Line: 5974]: Loop Invariant Derived loop invariant: (((ldv_state_variable_0 == 1 && 1 == ldv_mutex_mutex_of_device) && ldv_mutex_i_mutex_of_inode == 1) && ldv_mutex_lock == 1) && ldv_mutex_udev == 1 - InvariantResult [Line: 6917]: Loop Invariant Derived loop invariant: ((((1 == ldv_mutex_mutex_of_device && r == 0) && ldv_mutex_i_mutex_of_inode == 1) && \result == 0) && ldv_mutex_lock == 1) && 2 == ldv_mutex_udev - InvariantResult [Line: 5792]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6068]: Loop Invariant Derived loop invariant: ((1 == ldv_mutex_mutex_of_device && ldv_mutex_i_mutex_of_inode == 1) && ldv_mutex_lock == 1) && ldv_mutex_udev == 1 - InvariantResult [Line: 6962]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 5852]: Loop Invariant Derived loop invariant: (((((1 == ldv_mutex_mutex_of_device && r == 0) && ldv_mutex_i_mutex_of_inode == 1) && \result == 0) && ldv_mutex_lock == 1) && 2 == ldv_mutex_udev) || (((((1 == ldv_mutex_mutex_of_device && ldv_mutex_i_mutex_of_inode == 1) && ldv_mutex_lock == 1) && \result + 1 <= 0) && r + 1 <= 0) && ldv_mutex_udev == 1) - InvariantResult [Line: 6013]: Loop Invariant Derived loop invariant: (((1 == ldv_mutex_mutex_of_device && ldv_mutex_i_mutex_of_inode == 1) && ldv_mutex_lock == 1) && ldv_state_variable_6 == 0) && ldv_mutex_udev == 1 - InvariantResult [Line: 6100]: Loop Invariant Derived loop invariant: ((1 == ldv_mutex_mutex_of_device && ldv_mutex_i_mutex_of_inode == 1) && ldv_mutex_lock == 1) && ldv_mutex_udev == 1 - InvariantResult [Line: 6002]: Loop Invariant Derived loop invariant: ((1 == ldv_mutex_mutex_of_device && ldv_mutex_i_mutex_of_inode == 1) && ldv_mutex_lock == 1) && ldv_mutex_udev == 1 - InvariantResult [Line: 6110]: Loop Invariant Derived loop invariant: ((1 == ldv_mutex_mutex_of_device && ldv_mutex_i_mutex_of_inode == 1) && ldv_mutex_lock == 1) && ldv_mutex_udev == 1 - InvariantResult [Line: 6002]: Loop Invariant Derived loop invariant: ((1 == ldv_mutex_mutex_of_device && ldv_mutex_i_mutex_of_inode == 1) && ldv_mutex_lock == 1) && ldv_mutex_udev == 1 - InvariantResult [Line: 5843]: Loop Invariant Derived loop invariant: ((1 == ldv_mutex_mutex_of_device && ldv_mutex_i_mutex_of_inode == 1) && ldv_mutex_lock == 1) && ldv_mutex_udev == 1 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: (((1 == ldv_mutex_mutex_of_device && ldv_mutex_i_mutex_of_inode == 1) && ldv_mutex_lock == 1) && ldv_state_variable_6 == 0) && ldv_mutex_udev == 1 - InvariantResult [Line: 6940]: Loop Invariant Derived loop invariant: ((((1 == ldv_mutex_mutex_of_device && ldv_mutex_i_mutex_of_inode == 1) && \result == 0) && ldv_mutex_lock == 1) && 2 == ldv_mutex_udev) || ((((1 == ldv_mutex_mutex_of_device && ldv_mutex_i_mutex_of_inode == 1) && ldv_mutex_lock == 1) && \result + 1 <= 0) && ldv_mutex_udev == 1) - InvariantResult [Line: 6140]: Loop Invariant Derived loop invariant: ((1 == ldv_mutex_mutex_of_device && ldv_mutex_i_mutex_of_inode == 1) && ldv_mutex_lock == 1) && ldv_mutex_udev == 1 - InvariantResult [Line: 6132]: Loop Invariant Derived loop invariant: ((1 == ldv_mutex_mutex_of_device && ldv_mutex_i_mutex_of_inode == 1) && ldv_mutex_lock == 1) && ldv_mutex_udev == 1 RESULT: Ultimate proved your program to be correct! [2022-12-14 05:13:59,860 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a108855a-2960-45cb-be6b-7d863b61a3ba/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE