./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--usb--b2c2--b2c2-flexcop-usb.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661c1e40-c966-4e3d-910a-33d3c23ed442/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661c1e40-c966-4e3d-910a-33d3c23ed442/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_661c1e40-c966-4e3d-910a-33d3c23ed442/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661c1e40-c966-4e3d-910a-33d3c23ed442/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--usb--b2c2--b2c2-flexcop-usb.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661c1e40-c966-4e3d-910a-33d3c23ed442/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_661c1e40-c966-4e3d-910a-33d3c23ed442/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 637058e9c434875c2a607ff053c6fcb810c5a78083685ed0943116abd98a4161 --- 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 07:51:20,460 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 07:51:20,462 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 07:51:20,481 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 07:51:20,481 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 07:51:20,482 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 07:51:20,483 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 07:51:20,485 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 07:51:20,486 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 07:51:20,487 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 07:51:20,488 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 07:51:20,489 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 07:51:20,490 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 07:51:20,491 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 07:51:20,492 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 07:51:20,493 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 07:51:20,494 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 07:51:20,495 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 07:51:20,497 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 07:51:20,498 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 07:51:20,500 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 07:51:20,501 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 07:51:20,502 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 07:51:20,503 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 07:51:20,506 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 07:51:20,506 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 07:51:20,507 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 07:51:20,508 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 07:51:20,508 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 07:51:20,509 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 07:51:20,509 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 07:51:20,510 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 07:51:20,511 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 07:51:20,512 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 07:51:20,512 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 07:51:20,513 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 07:51:20,513 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 07:51:20,514 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 07:51:20,514 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 07:51:20,515 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 07:51:20,515 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 07:51:20,516 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661c1e40-c966-4e3d-910a-33d3c23ed442/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 07:51:20,541 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 07:51:20,541 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 07:51:20,541 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 07:51:20,541 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 07:51:20,542 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 07:51:20,542 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 07:51:20,542 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 07:51:20,542 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 07:51:20,543 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 07:51:20,543 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 07:51:20,543 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 07:51:20,543 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 07:51:20,543 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 07:51:20,543 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 07:51:20,544 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 07:51:20,544 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 07:51:20,544 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 07:51:20,544 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 07:51:20,545 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 07:51:20,545 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 07:51:20,545 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 07:51:20,545 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 07:51:20,545 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 07:51:20,545 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 07:51:20,546 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 07:51:20,546 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 07:51:20,546 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 07:51:20,546 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 07:51:20,546 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 07:51:20,546 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:51:20,547 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 07:51:20,547 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 07:51:20,547 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 07:51:20,547 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 07:51:20,547 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 07:51:20,547 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 07:51:20,547 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 07:51:20,548 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 07:51:20,552 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_661c1e40-c966-4e3d-910a-33d3c23ed442/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661c1e40-c966-4e3d-910a-33d3c23ed442/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 637058e9c434875c2a607ff053c6fcb810c5a78083685ed0943116abd98a4161 [2022-12-14 07:51:20,756 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 07:51:20,776 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 07:51:20,778 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 07:51:20,780 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 07:51:20,780 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 07:51:20,782 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661c1e40-c966-4e3d-910a-33d3c23ed442/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--usb--b2c2--b2c2-flexcop-usb.ko-main.cil.out.i [2022-12-14 07:51:23,454 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 07:51:23,820 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 07:51:23,820 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661c1e40-c966-4e3d-910a-33d3c23ed442/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--usb--b2c2--b2c2-flexcop-usb.ko-main.cil.out.i [2022-12-14 07:51:23,840 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661c1e40-c966-4e3d-910a-33d3c23ed442/bin/utaipan-gh47qXpMRh/data/a8dd02885/5411a0b2218847c6a9624765af66528f/FLAG68aaa21c1 [2022-12-14 07:51:23,851 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661c1e40-c966-4e3d-910a-33d3c23ed442/bin/utaipan-gh47qXpMRh/data/a8dd02885/5411a0b2218847c6a9624765af66528f [2022-12-14 07:51:23,852 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 07:51:23,853 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 07:51:23,854 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 07:51:23,854 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 07:51:23,857 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 07:51:23,858 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:51:23" (1/1) ... [2022-12-14 07:51:23,859 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b8c6fc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:51:23, skipping insertion in model container [2022-12-14 07:51:23,859 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:51:23" (1/1) ... [2022-12-14 07:51:23,865 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 07:51:23,931 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 07:51:24,327 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-12-14 07:51:24,331 WARN L623 FunctionHandler]: Unknown extern function dev_set_drvdata [2022-12-14 07:51:24,394 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-12-14 07:51:24,398 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 07:51:24,399 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-12-14 07:51:24,434 WARN L623 FunctionHandler]: Unknown extern function usb_control_msg [2022-12-14 07:51:24,436 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:51:24,442 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:51:24,443 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:51:24,444 WARN L623 FunctionHandler]: Unknown extern function usb_control_msg [2022-12-14 07:51:24,445 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:51:24,446 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:51:24,451 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:51:24,461 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:51:24,462 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:51:24,463 WARN L623 FunctionHandler]: Unknown extern function usb_control_msg [2022-12-14 07:51:24,483 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:51:24,486 WARN L623 FunctionHandler]: Unknown extern function flexcop_pass_dmx_packets [2022-12-14 07:51:24,486 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:51:24,487 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:51:24,487 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:51:24,491 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:51:24,492 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:51:24,493 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:51:24,494 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-14 07:51:24,500 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:51:24,501 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-14 07:51:24,501 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-12-14 07:51:24,505 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:51:24,506 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_urb [2022-12-14 07:51:24,507 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:51:24,509 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:51:24,510 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-14 07:51:24,510 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:51:24,511 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:51:24,511 WARN L623 FunctionHandler]: Unknown extern function flexcop_sram_set_dest [2022-12-14 07:51:24,512 WARN L623 FunctionHandler]: Unknown extern function flexcop_wan_set_speed [2022-12-14 07:51:24,512 WARN L623 FunctionHandler]: Unknown extern function flexcop_sram_ctrl [2022-12-14 07:51:24,515 WARN L623 FunctionHandler]: Unknown extern function usb_set_interface [2022-12-14 07:51:24,516 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:51:24,516 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:51:24,517 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:51:24,517 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:51:24,523 WARN L623 FunctionHandler]: Unknown extern function flexcop_device_kmalloc [2022-12-14 07:51:24,524 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:51:24,526 WARN L623 FunctionHandler]: Unknown extern function flexcop_device_initialize [2022-12-14 07:51:24,526 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:51:24,527 WARN L623 FunctionHandler]: Unknown extern function flexcop_device_exit [2022-12-14 07:51:24,527 WARN L623 FunctionHandler]: Unknown extern function flexcop_device_kfree [2022-12-14 07:51:24,530 WARN L623 FunctionHandler]: Unknown extern function flexcop_device_exit [2022-12-14 07:51:24,530 WARN L623 FunctionHandler]: Unknown extern function flexcop_device_kfree [2022-12-14 07:51:24,530 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:51:24,548 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 07:51:24,548 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 07:51:24,549 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 07:51:24,549 WARN L623 FunctionHandler]: Unknown extern function mutex_trylock [2022-12-14 07:51:24,550 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 07:51:24,550 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 07:51:24,550 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 07:51:24,551 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-12-14 07:51:24,551 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-12-14 07:51:24,554 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_661c1e40-c966-4e3d-910a-33d3c23ed442/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--usb--b2c2--b2c2-flexcop-usb.ko-main.cil.out.i[222523,222536] [2022-12-14 07:51:24,640 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:51:24,656 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 07:51:24,764 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-12-14 07:51:24,765 WARN L623 FunctionHandler]: Unknown extern function dev_set_drvdata [2022-12-14 07:51:24,772 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-12-14 07:51:24,773 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 07:51:24,773 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-12-14 07:51:24,777 WARN L623 FunctionHandler]: Unknown extern function usb_control_msg [2022-12-14 07:51:24,778 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:51:24,780 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:51:24,780 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:51:24,781 WARN L623 FunctionHandler]: Unknown extern function usb_control_msg [2022-12-14 07:51:24,781 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:51:24,782 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:51:24,783 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:51:24,787 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:51:24,788 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:51:24,788 WARN L623 FunctionHandler]: Unknown extern function usb_control_msg [2022-12-14 07:51:24,802 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:51:24,803 WARN L623 FunctionHandler]: Unknown extern function flexcop_pass_dmx_packets [2022-12-14 07:51:24,808 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:51:24,809 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:51:24,809 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:51:24,810 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:51:24,810 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:51:24,811 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:51:24,825 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-14 07:51:24,826 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:51:24,827 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-14 07:51:24,827 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-12-14 07:51:24,828 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:51:24,829 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_urb [2022-12-14 07:51:24,830 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:51:24,832 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:51:24,832 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-14 07:51:24,832 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:51:24,833 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:51:24,833 WARN L623 FunctionHandler]: Unknown extern function flexcop_sram_set_dest [2022-12-14 07:51:24,836 WARN L623 FunctionHandler]: Unknown extern function flexcop_wan_set_speed [2022-12-14 07:51:24,840 WARN L623 FunctionHandler]: Unknown extern function flexcop_sram_ctrl [2022-12-14 07:51:24,844 WARN L623 FunctionHandler]: Unknown extern function usb_set_interface [2022-12-14 07:51:24,844 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:51:24,844 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:51:24,845 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:51:24,845 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:51:24,846 WARN L623 FunctionHandler]: Unknown extern function flexcop_device_kmalloc [2022-12-14 07:51:24,846 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:51:24,862 WARN L623 FunctionHandler]: Unknown extern function flexcop_device_initialize [2022-12-14 07:51:24,863 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:51:24,863 WARN L623 FunctionHandler]: Unknown extern function flexcop_device_exit [2022-12-14 07:51:24,863 WARN L623 FunctionHandler]: Unknown extern function flexcop_device_kfree [2022-12-14 07:51:24,864 WARN L623 FunctionHandler]: Unknown extern function flexcop_device_exit [2022-12-14 07:51:24,867 WARN L623 FunctionHandler]: Unknown extern function flexcop_device_kfree [2022-12-14 07:51:24,871 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:51:24,874 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 07:51:24,874 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 07:51:24,874 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 07:51:24,875 WARN L623 FunctionHandler]: Unknown extern function mutex_trylock [2022-12-14 07:51:24,875 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 07:51:24,875 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 07:51:24,876 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 07:51:24,876 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-12-14 07:51:24,876 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-12-14 07:51:24,876 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_661c1e40-c966-4e3d-910a-33d3c23ed442/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--usb--b2c2--b2c2-flexcop-usb.ko-main.cil.out.i[222523,222536] [2022-12-14 07:51:24,884 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:51:24,902 INFO L208 MainTranslator]: Completed translation [2022-12-14 07:51:24,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:51:24 WrapperNode [2022-12-14 07:51:24,902 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 07:51:24,903 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 07:51:24,903 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 07:51:24,903 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 07:51:24,908 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:51:24" (1/1) ... [2022-12-14 07:51:24,936 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:51:24" (1/1) ... [2022-12-14 07:51:24,992 INFO L138 Inliner]: procedures = 127, calls = 982, calls flagged for inlining = 54, calls inlined = 42, statements flattened = 864 [2022-12-14 07:51:24,993 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 07:51:24,993 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 07:51:24,993 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 07:51:24,993 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 07:51:25,001 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:51:24" (1/1) ... [2022-12-14 07:51:25,002 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:51:24" (1/1) ... [2022-12-14 07:51:25,011 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:51:24" (1/1) ... [2022-12-14 07:51:25,011 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:51:24" (1/1) ... [2022-12-14 07:51:25,042 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:51:24" (1/1) ... [2022-12-14 07:51:25,048 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:51:24" (1/1) ... [2022-12-14 07:51:25,055 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:51:24" (1/1) ... [2022-12-14 07:51:25,061 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:51:24" (1/1) ... [2022-12-14 07:51:25,072 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 07:51:25,072 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 07:51:25,073 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 07:51:25,073 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 07:51:25,074 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:51:24" (1/1) ... [2022-12-14 07:51:25,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:51:25,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661c1e40-c966-4e3d-910a-33d3c23ed442/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:51:25,100 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661c1e40-c966-4e3d-910a-33d3c23ed442/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 07:51:25,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661c1e40-c966-4e3d-910a-33d3c23ed442/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 07:51:25,136 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-12-14 07:51:25,136 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-12-14 07:51:25,136 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_device_exit [2022-12-14 07:51:25,136 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_device_exit [2022-12-14 07:51:25,137 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2022-12-14 07:51:25,137 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2022-12-14 07:51:25,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 07:51:25,137 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-12-14 07:51:25,137 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-12-14 07:51:25,137 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-14 07:51:25,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-14 07:51:25,138 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_exit [2022-12-14 07:51:25,138 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_exit [2022-12-14 07:51:25,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 07:51:25,138 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-12-14 07:51:25,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-12-14 07:51:25,138 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-12-14 07:51:25,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-12-14 07:51:25,138 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_device_kfree [2022-12-14 07:51:25,138 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_device_kfree [2022-12-14 07:51:25,139 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 07:51:25,139 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 07:51:25,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 07:51:25,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 07:51:25,139 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_transfer_exit [2022-12-14 07:51:25,139 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_transfer_exit [2022-12-14 07:51:25,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 07:51:25,140 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-12-14 07:51:25,140 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-12-14 07:51:25,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 07:51:25,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 07:51:25,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 07:51:25,457 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 07:51:25,458 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 07:51:26,427 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 07:51:26,717 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 07:51:26,717 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 07:51:26,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:51:26 BoogieIcfgContainer [2022-12-14 07:51:26,720 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 07:51:26,721 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 07:51:26,721 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 07:51:26,723 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 07:51:26,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 07:51:23" (1/3) ... [2022-12-14 07:51:26,724 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d531086 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:51:26, skipping insertion in model container [2022-12-14 07:51:26,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:51:24" (2/3) ... [2022-12-14 07:51:26,724 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d531086 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:51:26, skipping insertion in model container [2022-12-14 07:51:26,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:51:26" (3/3) ... [2022-12-14 07:51:26,725 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--media--usb--b2c2--b2c2-flexcop-usb.ko-main.cil.out.i [2022-12-14 07:51:26,739 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 07:51:26,739 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 07:51:26,776 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 07:51:26,781 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;@60ca9c90, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 07:51:26,781 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 07:51:26,784 INFO L276 IsEmpty]: Start isEmpty. Operand has 111 states, 74 states have (on average 1.472972972972973) internal successors, (109), 80 states have internal predecessors, (109), 24 states have call successors, (24), 11 states have call predecessors, (24), 11 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2022-12-14 07:51:26,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 07:51:26,789 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:51:26,790 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:51:26,790 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:51:26,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:51:26,794 INFO L85 PathProgramCache]: Analyzing trace with hash 62970560, now seen corresponding path program 1 times [2022-12-14 07:51:26,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:51:26,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562817548] [2022-12-14 07:51:26,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:51:26,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:51:26,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:51:27,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:51:27,094 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:51:27,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562817548] [2022-12-14 07:51:27,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562817548] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:51:27,095 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:51:27,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 07:51:27,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284413945] [2022-12-14 07:51:27,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:51:27,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:51:27,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:51:27,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:51:27,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:51:27,132 INFO L87 Difference]: Start difference. First operand has 111 states, 74 states have (on average 1.472972972972973) internal successors, (109), 80 states have internal predecessors, (109), 24 states have call successors, (24), 11 states have call predecessors, (24), 11 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:51:28,236 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:51:29,538 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:51:29,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:51:29,691 INFO L93 Difference]: Finished difference Result 317 states and 451 transitions. [2022-12-14 07:51:29,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:51:29,694 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-12-14 07:51:29,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:51:29,703 INFO L225 Difference]: With dead ends: 317 [2022-12-14 07:51:29,703 INFO L226 Difference]: Without dead ends: 203 [2022-12-14 07:51:29,706 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 07:51:29,709 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 129 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-12-14 07:51:29,710 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 236 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-12-14 07:51:29,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2022-12-14 07:51:29,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2022-12-14 07:51:29,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 137 states have (on average 1.4233576642335766) internal successors, (195), 143 states have internal predecessors, (195), 45 states have call successors, (45), 21 states have call predecessors, (45), 20 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2022-12-14 07:51:29,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 282 transitions. [2022-12-14 07:51:29,753 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 282 transitions. Word has length 11 [2022-12-14 07:51:29,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:51:29,753 INFO L495 AbstractCegarLoop]: Abstraction has 203 states and 282 transitions. [2022-12-14 07:51:29,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:51:29,753 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 282 transitions. [2022-12-14 07:51:29,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 07:51:29,754 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:51:29,754 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:51:29,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 07:51:29,755 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:51:29,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:51:29,755 INFO L85 PathProgramCache]: Analyzing trace with hash 1609709673, now seen corresponding path program 1 times [2022-12-14 07:51:29,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:51:29,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023473738] [2022-12-14 07:51:29,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:51:29,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:51:29,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:51:29,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:51:29,833 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:51:29,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023473738] [2022-12-14 07:51:29,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023473738] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:51:29,833 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:51:29,833 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 07:51:29,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803070716] [2022-12-14 07:51:29,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:51:29,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:51:29,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:51:29,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:51:29,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:51:29,835 INFO L87 Difference]: Start difference. First operand 203 states and 282 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:51:31,858 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:51:32,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:51:32,003 INFO L93 Difference]: Finished difference Result 329 states and 443 transitions. [2022-12-14 07:51:32,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:51:32,003 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-12-14 07:51:32,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:51:32,005 INFO L225 Difference]: With dead ends: 329 [2022-12-14 07:51:32,005 INFO L226 Difference]: Without dead ends: 326 [2022-12-14 07:51:32,006 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 07:51:32,007 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 78 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:51:32,007 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 228 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 89 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2022-12-14 07:51:32,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2022-12-14 07:51:32,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 324. [2022-12-14 07:51:32,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 218 states have (on average 1.3944954128440368) internal successors, (304), 224 states have internal predecessors, (304), 69 states have call successors, (69), 37 states have call predecessors, (69), 36 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2022-12-14 07:51:32,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 439 transitions. [2022-12-14 07:51:32,033 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 439 transitions. Word has length 13 [2022-12-14 07:51:32,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:51:32,033 INFO L495 AbstractCegarLoop]: Abstraction has 324 states and 439 transitions. [2022-12-14 07:51:32,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:51:32,033 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 439 transitions. [2022-12-14 07:51:32,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 07:51:32,034 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:51:32,034 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:51:32,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 07:51:32,034 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:51:32,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:51:32,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1638709346, now seen corresponding path program 1 times [2022-12-14 07:51:32,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:51:32,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309484218] [2022-12-14 07:51:32,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:51:32,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:51:32,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:51:32,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:51:32,116 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:51:32,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309484218] [2022-12-14 07:51:32,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309484218] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:51:32,117 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:51:32,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 07:51:32,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611200028] [2022-12-14 07:51:32,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:51:32,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:51:32,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:51:32,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:51:32,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:51:32,119 INFO L87 Difference]: Start difference. First operand 324 states and 439 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:51:33,187 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:51:33,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:51:33,256 INFO L93 Difference]: Finished difference Result 326 states and 440 transitions. [2022-12-14 07:51:33,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:51:33,257 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-12-14 07:51:33,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:51:33,258 INFO L225 Difference]: With dead ends: 326 [2022-12-14 07:51:33,258 INFO L226 Difference]: Without dead ends: 323 [2022-12-14 07:51:33,259 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 07:51:33,259 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 136 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:51:33,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 105 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-14 07:51:33,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2022-12-14 07:51:33,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 323. [2022-12-14 07:51:33,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 218 states have (on average 1.389908256880734) internal successors, (303), 223 states have internal predecessors, (303), 68 states have call successors, (68), 37 states have call predecessors, (68), 36 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2022-12-14 07:51:33,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 437 transitions. [2022-12-14 07:51:33,278 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 437 transitions. Word has length 14 [2022-12-14 07:51:33,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:51:33,278 INFO L495 AbstractCegarLoop]: Abstraction has 323 states and 437 transitions. [2022-12-14 07:51:33,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:51:33,279 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 437 transitions. [2022-12-14 07:51:33,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 07:51:33,279 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:51:33,279 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:51:33,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 07:51:33,280 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:51:33,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:51:33,280 INFO L85 PathProgramCache]: Analyzing trace with hash 739521036, now seen corresponding path program 1 times [2022-12-14 07:51:33,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:51:33,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119807148] [2022-12-14 07:51:33,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:51:33,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:51:33,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:51:33,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:51:33,359 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:51:33,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119807148] [2022-12-14 07:51:33,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119807148] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:51:33,360 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:51:33,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 07:51:33,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695125466] [2022-12-14 07:51:33,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:51:33,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:51:33,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:51:33,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:51:33,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:51:33,361 INFO L87 Difference]: Start difference. First operand 323 states and 437 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:51:35,386 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:51:35,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:51:35,511 INFO L93 Difference]: Finished difference Result 328 states and 441 transitions. [2022-12-14 07:51:35,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:51:35,512 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-12-14 07:51:35,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:51:35,515 INFO L225 Difference]: With dead ends: 328 [2022-12-14 07:51:35,515 INFO L226 Difference]: Without dead ends: 321 [2022-12-14 07:51:35,516 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 07:51:35,516 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 71 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:51:35,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 231 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 88 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2022-12-14 07:51:35,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2022-12-14 07:51:35,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 321. [2022-12-14 07:51:35,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 216 states have (on average 1.3842592592592593) internal successors, (299), 221 states have internal predecessors, (299), 68 states have call successors, (68), 37 states have call predecessors, (68), 36 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2022-12-14 07:51:35,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 433 transitions. [2022-12-14 07:51:35,535 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 433 transitions. Word has length 15 [2022-12-14 07:51:35,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:51:35,535 INFO L495 AbstractCegarLoop]: Abstraction has 321 states and 433 transitions. [2022-12-14 07:51:35,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:51:35,535 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 433 transitions. [2022-12-14 07:51:35,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 07:51:35,537 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:51:35,537 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-14 07:51:35,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 07:51:35,537 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:51:35,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:51:35,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1099680049, now seen corresponding path program 1 times [2022-12-14 07:51:35,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:51:35,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550999634] [2022-12-14 07:51:35,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:51:35,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:51:35,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:51:35,621 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:51:35,621 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:51:35,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550999634] [2022-12-14 07:51:35,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550999634] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:51:35,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:51:35,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:51:35,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495657746] [2022-12-14 07:51:35,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:51:35,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:51:35,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:51:35,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:51:35,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:51:35,633 INFO L87 Difference]: Start difference. First operand 321 states and 433 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 07:51:37,671 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:51:37,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:51:37,766 INFO L93 Difference]: Finished difference Result 521 states and 712 transitions. [2022-12-14 07:51:37,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:51:37,766 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 31 [2022-12-14 07:51:37,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:51:37,767 INFO L225 Difference]: With dead ends: 521 [2022-12-14 07:51:37,767 INFO L226 Difference]: Without dead ends: 201 [2022-12-14 07:51:37,768 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 07:51:37,769 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 20 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:51:37,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 208 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 84 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2022-12-14 07:51:37,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2022-12-14 07:51:37,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 193. [2022-12-14 07:51:37,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 139 states have (on average 1.4460431654676258) internal successors, (201), 142 states have internal predecessors, (201), 35 states have call successors, (35), 19 states have call predecessors, (35), 18 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2022-12-14 07:51:37,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 269 transitions. [2022-12-14 07:51:37,777 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 269 transitions. Word has length 31 [2022-12-14 07:51:37,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:51:37,777 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 269 transitions. [2022-12-14 07:51:37,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 07:51:37,777 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 269 transitions. [2022-12-14 07:51:37,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-12-14 07:51:37,779 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:51:37,779 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2022-12-14 07:51:37,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 07:51:37,779 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:51:37,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:51:37,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1775205313, now seen corresponding path program 1 times [2022-12-14 07:51:37,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:51:37,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940861569] [2022-12-14 07:51:37,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:51:37,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:51:37,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:51:37,916 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 07:51:37,916 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:51:37,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940861569] [2022-12-14 07:51:37,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940861569] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:51:37,917 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:51:37,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:51:37,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726113829] [2022-12-14 07:51:37,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:51:37,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:51:37,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:51:37,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:51:37,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:51:37,918 INFO L87 Difference]: Start difference. First operand 193 states and 269 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 07:51:39,494 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:51:39,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:51:39,559 INFO L93 Difference]: Finished difference Result 195 states and 270 transitions. [2022-12-14 07:51:39,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:51:39,560 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), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 37 [2022-12-14 07:51:39,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:51:39,561 INFO L225 Difference]: With dead ends: 195 [2022-12-14 07:51:39,561 INFO L226 Difference]: Without dead ends: 192 [2022-12-14 07:51:39,561 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 07:51:39,562 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 120 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-12-14 07:51:39,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 103 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-12-14 07:51:39,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2022-12-14 07:51:39,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2022-12-14 07:51:39,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 139 states have (on average 1.4388489208633093) internal successors, (200), 141 states have internal predecessors, (200), 34 states have call successors, (34), 19 states have call predecessors, (34), 18 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2022-12-14 07:51:39,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 267 transitions. [2022-12-14 07:51:39,577 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 267 transitions. Word has length 37 [2022-12-14 07:51:39,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:51:39,577 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 267 transitions. [2022-12-14 07:51:39,577 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), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 07:51:39,577 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 267 transitions. [2022-12-14 07:51:39,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-12-14 07:51:39,578 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:51:39,578 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2022-12-14 07:51:39,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 07:51:39,578 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:51:39,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:51:39,578 INFO L85 PathProgramCache]: Analyzing trace with hash -873537438, now seen corresponding path program 1 times [2022-12-14 07:51:39,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:51:39,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877386111] [2022-12-14 07:51:39,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:51:39,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:51:39,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:51:39,734 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 07:51:39,734 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:51:39,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877386111] [2022-12-14 07:51:39,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877386111] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:51:39,735 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:51:39,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:51:39,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399524704] [2022-12-14 07:51:39,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:51:39,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:51:39,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:51:39,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:51:39,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:51:39,736 INFO L87 Difference]: Start difference. First operand 192 states and 267 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 07:51:41,764 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:51:41,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:51:41,833 INFO L93 Difference]: Finished difference Result 192 states and 267 transitions. [2022-12-14 07:51:41,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:51:41,833 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), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 39 [2022-12-14 07:51:41,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:51:41,834 INFO L225 Difference]: With dead ends: 192 [2022-12-14 07:51:41,834 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 07:51:41,834 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 07:51:41,835 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 115 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:51:41,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 101 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2022-12-14 07:51:41,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 07:51:41,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 07:51:41,835 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 07:51:41,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 07:51:41,835 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 39 [2022-12-14 07:51:41,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:51:41,836 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 07:51:41,836 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), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 07:51:41,836 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 07:51:41,836 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 07:51:41,838 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-14 07:51:41,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 07:51:41,839 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 07:51:42,126 INFO L899 garLoopResultBuilder]: For program point L6653-1(lines 6653 6654) no Hoare annotation was computed. [2022-12-14 07:51:42,126 INFO L902 garLoopResultBuilder]: At program point L6653(lines 6653 6654) the Hoare annotation is: true [2022-12-14 07:51:42,126 INFO L899 garLoopResultBuilder]: For program point get_dma_opsEXIT(lines 6650 6661) no Hoare annotation was computed. [2022-12-14 07:51:42,126 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 6650 6661) the Hoare annotation is: true [2022-12-14 07:51:42,126 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 8049 8051) the Hoare annotation is: true [2022-12-14 07:51:42,126 INFO L899 garLoopResultBuilder]: For program point flexcop_device_kfreeEXIT(lines 8049 8051) no Hoare annotation was computed. [2022-12-14 07:51:42,126 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 6608 6614) the Hoare annotation is: true [2022-12-14 07:51:42,126 INFO L899 garLoopResultBuilder]: For program point usb_set_intfdataEXIT(lines 6608 6614) no Hoare annotation was computed. [2022-12-14 07:51:42,127 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 8042 8044) the Hoare annotation is: true [2022-12-14 07:51:42,127 INFO L899 garLoopResultBuilder]: For program point flexcop_device_exitEXIT(lines 8042 8044) no Hoare annotation was computed. [2022-12-14 07:51:42,127 INFO L899 garLoopResultBuilder]: For program point usb_submit_urbEXIT(lines 8107 8109) no Hoare annotation was computed. [2022-12-14 07:51:42,127 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 8107 8109) the Hoare annotation is: true [2022-12-14 07:51:42,127 INFO L899 garLoopResultBuilder]: For program point L6555-1(lines 6555 6556) no Hoare annotation was computed. [2022-12-14 07:51:42,127 INFO L902 garLoopResultBuilder]: At program point L6555(lines 6555 6556) the Hoare annotation is: true [2022-12-14 07:51:42,127 INFO L902 garLoopResultBuilder]: At program point L6741-1(line 6741) the Hoare annotation is: true [2022-12-14 07:51:42,127 INFO L902 garLoopResultBuilder]: At program point L6741(line 6741) the Hoare annotation is: true [2022-12-14 07:51:42,127 INFO L902 garLoopResultBuilder]: At program point $Ultimate##8(lines 7234 7238) the Hoare annotation is: true [2022-12-14 07:51:42,127 INFO L902 garLoopResultBuilder]: At program point L6560(lines 6557 6562) the Hoare annotation is: true [2022-12-14 07:51:42,127 INFO L899 garLoopResultBuilder]: For program point flexcop_usb_transfer_exitEXIT(lines 7217 7247) no Hoare annotation was computed. [2022-12-14 07:51:42,127 INFO L902 garLoopResultBuilder]: At program point L6742-2(lines 6742 6746) the Hoare annotation is: true [2022-12-14 07:51:42,127 INFO L902 garLoopResultBuilder]: At program point L6747(line 6747) the Hoare annotation is: true [2022-12-14 07:51:42,127 INFO L902 garLoopResultBuilder]: At program point L6557(lines 6557 6563) the Hoare annotation is: true [2022-12-14 07:51:42,127 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 7217 7247) the Hoare annotation is: true [2022-12-14 07:51:42,128 INFO L899 garLoopResultBuilder]: For program point L6736-1(line 6736) no Hoare annotation was computed. [2022-12-14 07:51:42,128 INFO L902 garLoopResultBuilder]: At program point L6736(line 6736) the Hoare annotation is: true [2022-12-14 07:51:42,128 INFO L899 garLoopResultBuilder]: For program point L7240-2(lines 7217 7247) no Hoare annotation was computed. [2022-12-14 07:51:42,128 INFO L899 garLoopResultBuilder]: For program point L7240(lines 7240 7244) no Hoare annotation was computed. [2022-12-14 07:51:42,128 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 6634 6639) the Hoare annotation is: true [2022-12-14 07:51:42,128 INFO L899 garLoopResultBuilder]: For program point __create_pipeEXIT(lines 6634 6639) no Hoare annotation was computed. [2022-12-14 07:51:42,128 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 8030 8034) the Hoare annotation is: true [2022-12-14 07:51:42,128 INFO L899 garLoopResultBuilder]: For program point ldv_mallocEXIT(lines 8030 8034) no Hoare annotation was computed. [2022-12-14 07:51:42,128 INFO L902 garLoopResultBuilder]: At program point ERROR(lines 7668 7673) the Hoare annotation is: true [2022-12-14 07:51:42,128 INFO L899 garLoopResultBuilder]: For program point ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 7671) no Hoare annotation was computed. [2022-12-14 07:51:42,128 INFO L899 garLoopResultBuilder]: For program point ldv_errorEXIT(lines 7668 7673) no Hoare annotation was computed. [2022-12-14 07:51:42,129 INFO L899 garLoopResultBuilder]: For program point flexcop_usb_exitEXIT(lines 7382 7388) no Hoare annotation was computed. [2022-12-14 07:51:42,129 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 7382 7388) the Hoare annotation is: true [2022-12-14 07:51:42,129 INFO L899 garLoopResultBuilder]: For program point L7385-1(line 7385) no Hoare annotation was computed. [2022-12-14 07:51:42,129 INFO L902 garLoopResultBuilder]: At program point L7385(line 7385) the Hoare annotation is: true [2022-12-14 07:51:42,129 INFO L899 garLoopResultBuilder]: For program point L7451-1(line 7451) no Hoare annotation was computed. [2022-12-14 07:51:42,129 INFO L895 garLoopResultBuilder]: At program point L7451(line 7451) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2022-12-14 07:51:42,129 INFO L899 garLoopResultBuilder]: For program point L7517(line 7517) no Hoare annotation was computed. [2022-12-14 07:51:42,129 INFO L899 garLoopResultBuilder]: For program point L8013-1(lines 8006 8020) no Hoare annotation was computed. [2022-12-14 07:51:42,129 INFO L895 garLoopResultBuilder]: At program point L8013(line 8013) the Hoare annotation is: false [2022-12-14 07:51:42,129 INFO L899 garLoopResultBuilder]: For program point L7270(lines 7270 7273) no Hoare annotation was computed. [2022-12-14 07:51:42,129 INFO L899 garLoopResultBuilder]: For program point L7369(line 7369) no Hoare annotation was computed. [2022-12-14 07:51:42,129 INFO L895 garLoopResultBuilder]: At program point L7518(lines 7518 7526) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2022-12-14 07:51:42,130 INFO L899 garLoopResultBuilder]: For program point L7452-1(line 7452) no Hoare annotation was computed. [2022-12-14 07:51:42,130 INFO L895 garLoopResultBuilder]: At program point L7452(line 7452) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2022-12-14 07:51:42,130 INFO L899 garLoopResultBuilder]: For program point L7354(line 7354) no Hoare annotation was computed. [2022-12-14 07:51:42,130 INFO L895 garLoopResultBuilder]: At program point L7420(lines 7420 7423) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2022-12-14 07:51:42,130 INFO L899 garLoopResultBuilder]: For program point L7453-1(line 7453) no Hoare annotation was computed. [2022-12-14 07:51:42,130 INFO L895 garLoopResultBuilder]: At program point L7453(line 7453) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2022-12-14 07:51:42,130 INFO L895 garLoopResultBuilder]: At program point L7437(lines 7395 7443) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2022-12-14 07:51:42,130 INFO L899 garLoopResultBuilder]: For program point L7305-1(line 7305) no Hoare annotation was computed. [2022-12-14 07:51:42,130 INFO L895 garLoopResultBuilder]: At program point L7305(line 7305) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2022-12-14 07:51:42,130 INFO L895 garLoopResultBuilder]: At program point L7454(line 7454) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2022-12-14 07:51:42,130 INFO L895 garLoopResultBuilder]: At program point L7454-1(line 7454) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2022-12-14 07:51:42,131 INFO L895 garLoopResultBuilder]: At program point $Ultimate##70(lines 7325 7329) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2022-12-14 07:51:42,131 INFO L895 garLoopResultBuilder]: At program point L8083-1(line 8083) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2022-12-14 07:51:42,131 INFO L895 garLoopResultBuilder]: At program point L8083(line 8083) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2022-12-14 07:51:42,131 INFO L895 garLoopResultBuilder]: At program point L7439(lines 7395 7443) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2022-12-14 07:51:42,131 INFO L902 garLoopResultBuilder]: At program point L8017-1(lines 8004 8021) the Hoare annotation is: true [2022-12-14 07:51:42,131 INFO L895 garLoopResultBuilder]: At program point L8017(line 8017) the Hoare annotation is: false [2022-12-14 07:51:42,131 INFO L899 garLoopResultBuilder]: For program point L7373(line 7373) no Hoare annotation was computed. [2022-12-14 07:51:42,131 INFO L899 garLoopResultBuilder]: For program point L7555(line 7555) no Hoare annotation was computed. [2022-12-14 07:51:42,132 INFO L895 garLoopResultBuilder]: At program point $Ultimate##77(lines 7343 7347) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2022-12-14 07:51:42,132 INFO L895 garLoopResultBuilder]: At program point flexcop_usb_probe_returnLabel#1(lines 7389 7444) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2022-12-14 07:51:42,132 INFO L895 garLoopResultBuilder]: At program point $Ultimate##62(lines 7287 7291) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2022-12-14 07:51:42,132 INFO L895 garLoopResultBuilder]: At program point L7556(lines 7556 7568) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2022-12-14 07:51:42,132 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-14 07:51:42,132 INFO L899 garLoopResultBuilder]: For program point L7441(line 7441) no Hoare annotation was computed. [2022-12-14 07:51:42,132 INFO L895 garLoopResultBuilder]: At program point L8036-1(line 8036) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2022-12-14 07:51:42,132 INFO L895 garLoopResultBuilder]: At program point L8036(line 8036) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2022-12-14 07:51:42,132 INFO L899 garLoopResultBuilder]: For program point L7425(lines 7425 7428) no Hoare annotation was computed. [2022-12-14 07:51:42,133 INFO L895 garLoopResultBuilder]: At program point L8053-1(line 8053) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2022-12-14 07:51:42,133 INFO L895 garLoopResultBuilder]: At program point L8053(line 8053) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2022-12-14 07:51:42,133 INFO L895 garLoopResultBuilder]: At program point flexcop_usb_transfer_init_returnLabel#1(lines 7248 7357) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2022-12-14 07:51:42,133 INFO L899 garLoopResultBuilder]: For program point L7558-2(lines 7556 7567) no Hoare annotation was computed. [2022-12-14 07:51:42,133 INFO L895 garLoopResultBuilder]: At program point flexcop_usb_init_returnLabel#1(lines 7358 7381) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2022-12-14 07:51:42,133 INFO L895 garLoopResultBuilder]: At program point L7377(lines 7360 7380) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2022-12-14 07:51:42,133 INFO L895 garLoopResultBuilder]: At program point L7510(lines 7505 7585) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2022-12-14 07:51:42,134 INFO L899 garLoopResultBuilder]: For program point L7543(line 7543) no Hoare annotation was computed. [2022-12-14 07:51:42,134 INFO L895 garLoopResultBuilder]: At program point L7378(line 7378) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2022-12-14 07:51:42,134 INFO L899 garLoopResultBuilder]: For program point L7378-1(line 7378) no Hoare annotation was computed. [2022-12-14 07:51:42,134 INFO L899 garLoopResultBuilder]: For program point L7544(lines 7544 7575) no Hoare annotation was computed. [2022-12-14 07:51:42,134 INFO L895 garLoopResultBuilder]: At program point flexcop_usb_transfer_init_urb_error#1(lines 7259 7356) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2022-12-14 07:51:42,134 INFO L899 garLoopResultBuilder]: For program point L7280(lines 7280 7284) no Hoare annotation was computed. [2022-12-14 07:51:42,134 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2022-12-14 07:51:42,134 INFO L899 garLoopResultBuilder]: For program point L8007(lines 8007 8010) no Hoare annotation was computed. [2022-12-14 07:51:42,134 INFO L899 garLoopResultBuilder]: For program point L7528(line 7528) no Hoare annotation was computed. [2022-12-14 07:51:42,134 INFO L899 garLoopResultBuilder]: For program point L7363(line 7363) no Hoare annotation was computed. [2022-12-14 07:51:42,135 INFO L895 garLoopResultBuilder]: At program point main_ldv_final#1(lines 7505 7585) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2022-12-14 07:51:42,135 INFO L895 garLoopResultBuilder]: At program point L6703-1(line 6703) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2022-12-14 07:51:42,135 INFO L895 garLoopResultBuilder]: At program point L6703(line 6703) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2022-12-14 07:51:42,135 INFO L899 garLoopResultBuilder]: For program point L7430(lines 7430 7433) no Hoare annotation was computed. [2022-12-14 07:51:42,135 INFO L899 garLoopResultBuilder]: For program point L7529(lines 7529 7534) no Hoare annotation was computed. [2022-12-14 07:51:42,135 INFO L899 garLoopResultBuilder]: For program point L7331-1(line 7331) no Hoare annotation was computed. [2022-12-14 07:51:42,135 INFO L895 garLoopResultBuilder]: At program point L7331(line 7331) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2022-12-14 07:51:42,135 INFO L899 garLoopResultBuilder]: For program point L7513(line 7513) no Hoare annotation was computed. [2022-12-14 07:51:42,136 INFO L899 garLoopResultBuilder]: For program point L8009-1(lines 8006 8020) no Hoare annotation was computed. [2022-12-14 07:51:42,136 INFO L895 garLoopResultBuilder]: At program point L8009(line 8009) the Hoare annotation is: false [2022-12-14 07:51:42,136 INFO L899 garLoopResultBuilder]: For program point L7332(lines 7332 7336) no Hoare annotation was computed. [2022-12-14 07:51:42,136 INFO L899 garLoopResultBuilder]: For program point L7514(lines 7514 7541) no Hoare annotation was computed. [2022-12-14 07:51:42,136 INFO L895 garLoopResultBuilder]: At program point L-1-3(line -1) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2022-12-14 07:51:42,136 INFO L899 garLoopResultBuilder]: For program point L7547(line 7547) no Hoare annotation was computed. [2022-12-14 07:51:42,136 INFO L899 garLoopResultBuilder]: For program point L7366(line 7366) no Hoare annotation was computed. [2022-12-14 07:51:42,136 INFO L895 garLoopResultBuilder]: At program point flexcop_usb_probe_err_fc_exit#1(lines 7395 7443) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2022-12-14 07:51:42,136 INFO L895 garLoopResultBuilder]: At program point L7548(lines 7548 7553) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2022-12-14 07:51:42,136 INFO L895 garLoopResultBuilder]: At program point L7401(lines 7401 7405) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2022-12-14 07:51:42,137 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 7675 7680) the Hoare annotation is: true [2022-12-14 07:51:42,137 INFO L899 garLoopResultBuilder]: For program point ldv__builtin_expectEXIT(lines 7675 7680) no Hoare annotation was computed. [2022-12-14 07:51:42,140 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:51:42,142 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 07:51:42,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 07:51:42 BoogieIcfgContainer [2022-12-14 07:51:42,159 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 07:51:42,160 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 07:51:42,160 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 07:51:42,160 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 07:51:42,160 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:51:26" (3/4) ... [2022-12-14 07:51:42,163 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 07:51:42,169 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure get_dma_ops [2022-12-14 07:51:42,169 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure flexcop_device_kfree [2022-12-14 07:51:42,169 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2022-12-14 07:51:42,169 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_error [2022-12-14 07:51:42,169 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure flexcop_usb_exit [2022-12-14 07:51:42,169 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure usb_set_intfdata [2022-12-14 07:51:42,170 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure flexcop_device_exit [2022-12-14 07:51:42,170 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure usb_submit_urb [2022-12-14 07:51:42,170 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure flexcop_usb_transfer_exit [2022-12-14 07:51:42,170 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __create_pipe [2022-12-14 07:51:42,170 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv__builtin_expect [2022-12-14 07:51:42,183 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 192 nodes and edges [2022-12-14 07:51:42,184 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 69 nodes and edges [2022-12-14 07:51:42,185 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2022-12-14 07:51:42,186 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-12-14 07:51:42,187 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-14 07:51:42,188 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 07:51:42,189 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 07:51:42,282 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661c1e40-c966-4e3d-910a-33d3c23ed442/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 07:51:42,282 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 07:51:42,283 INFO L158 Benchmark]: Toolchain (without parser) took 18429.41ms. Allocated memory was 155.2MB in the beginning and 224.4MB in the end (delta: 69.2MB). Free memory was 93.1MB in the beginning and 55.0MB in the end (delta: 38.1MB). Peak memory consumption was 109.4MB. Max. memory is 16.1GB. [2022-12-14 07:51:42,283 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 102.8MB. Free memory is still 73.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 07:51:42,283 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1048.20ms. Allocated memory is still 155.2MB. Free memory was 92.8MB in the beginning and 57.0MB in the end (delta: 35.9MB). Peak memory consumption was 69.0MB. Max. memory is 16.1GB. [2022-12-14 07:51:42,283 INFO L158 Benchmark]: Boogie Procedure Inliner took 89.68ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 57.0MB in the beginning and 122.3MB in the end (delta: -65.4MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. [2022-12-14 07:51:42,284 INFO L158 Benchmark]: Boogie Preprocessor took 78.51ms. Allocated memory is still 186.6MB. Free memory was 122.3MB in the beginning and 113.9MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-14 07:51:42,284 INFO L158 Benchmark]: RCFGBuilder took 1647.23ms. Allocated memory is still 186.6MB. Free memory was 113.9MB in the beginning and 101.8MB in the end (delta: 12.1MB). Peak memory consumption was 59.2MB. Max. memory is 16.1GB. [2022-12-14 07:51:42,284 INFO L158 Benchmark]: TraceAbstraction took 15438.26ms. Allocated memory was 186.6MB in the beginning and 224.4MB in the end (delta: 37.7MB). Free memory was 100.7MB in the beginning and 69.7MB in the end (delta: 31.1MB). Peak memory consumption was 67.8MB. Max. memory is 16.1GB. [2022-12-14 07:51:42,284 INFO L158 Benchmark]: Witness Printer took 122.60ms. Allocated memory is still 224.4MB. Free memory was 69.7MB in the beginning and 55.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 07:51:42,286 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 102.8MB. Free memory is still 73.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1048.20ms. Allocated memory is still 155.2MB. Free memory was 92.8MB in the beginning and 57.0MB in the end (delta: 35.9MB). Peak memory consumption was 69.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 89.68ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 57.0MB in the beginning and 122.3MB in the end (delta: -65.4MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 78.51ms. Allocated memory is still 186.6MB. Free memory was 122.3MB in the beginning and 113.9MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1647.23ms. Allocated memory is still 186.6MB. Free memory was 113.9MB in the beginning and 101.8MB in the end (delta: 12.1MB). Peak memory consumption was 59.2MB. Max. memory is 16.1GB. * TraceAbstraction took 15438.26ms. Allocated memory was 186.6MB in the beginning and 224.4MB in the end (delta: 37.7MB). Free memory was 100.7MB in the beginning and 69.7MB in the end (delta: 31.1MB). Peak memory consumption was 67.8MB. Max. memory is 16.1GB. * Witness Printer took 122.60ms. Allocated memory is still 224.4MB. Free memory was 69.7MB in the beginning and 55.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. 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: 7671]: 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 12 procedures, 111 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 15.4s, OverallIterations: 7, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 14.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4 mSolverCounterUnknown, 669 SdHoareTripleChecker+Valid, 13.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 669 mSDsluCounter, 1212 SdHoareTripleChecker+Invalid, 13.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 413 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 475 IncrementalHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 799 mSDtfsCounter, 475 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=324occurred in iteration=2, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 10 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 62 LocationsWithAnnotation, 291 PreInvPairs, 334 NumberOfFragments, 377 HoareAnnotationTreeSize, 291 FomulaSimplifications, 19 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 62 FomulaSimplificationsInter, 530 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 160 NumberOfCodeBlocks, 160 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 153 ConstructedInterpolants, 0 QuantifiedInterpolants, 361 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 20/20 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: 7358]: Loop Invariant Derived loop invariant: (1 == ldv_mutex_mutex_of_device && ldv_mutex_lock == 1) && ldv_mutex_cred_guard_mutex_of_signal_struct == 1 - InvariantResult [Line: 7325]: Loop Invariant Derived loop invariant: (1 == ldv_mutex_mutex_of_device && ldv_mutex_lock == 1) && ldv_mutex_cred_guard_mutex_of_signal_struct == 1 - InvariantResult [Line: 7548]: Loop Invariant Derived loop invariant: (1 == ldv_mutex_mutex_of_device && ldv_mutex_lock == 1) && ldv_mutex_cred_guard_mutex_of_signal_struct == 1 - InvariantResult [Line: 7556]: Loop Invariant Derived loop invariant: (1 == ldv_mutex_mutex_of_device && ldv_mutex_lock == 1) && ldv_mutex_cred_guard_mutex_of_signal_struct == 1 - InvariantResult [Line: 7395]: Loop Invariant Derived loop invariant: (1 == ldv_mutex_mutex_of_device && ldv_mutex_lock == 1) && ldv_mutex_cred_guard_mutex_of_signal_struct == 1 - InvariantResult [Line: 7389]: Loop Invariant Derived loop invariant: (1 == ldv_mutex_mutex_of_device && ldv_mutex_lock == 1) && ldv_mutex_cred_guard_mutex_of_signal_struct == 1 - InvariantResult [Line: 7505]: Loop Invariant Derived loop invariant: (1 == ldv_mutex_mutex_of_device && ldv_mutex_lock == 1) && ldv_mutex_cred_guard_mutex_of_signal_struct == 1 - InvariantResult [Line: 8036]: Loop Invariant Derived loop invariant: (1 == ldv_mutex_mutex_of_device && ldv_mutex_lock == 1) && ldv_mutex_cred_guard_mutex_of_signal_struct == 1 - InvariantResult [Line: 7360]: Loop Invariant Derived loop invariant: (1 == ldv_mutex_mutex_of_device && ldv_mutex_lock == 1) && ldv_mutex_cred_guard_mutex_of_signal_struct == 1 - InvariantResult [Line: 6557]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6703]: Loop Invariant Derived loop invariant: (1 == ldv_mutex_mutex_of_device && ldv_mutex_lock == 1) && ldv_mutex_cred_guard_mutex_of_signal_struct == 1 - InvariantResult [Line: 8053]: Loop Invariant Derived loop invariant: (1 == ldv_mutex_mutex_of_device && ldv_mutex_lock == 1) && ldv_mutex_cred_guard_mutex_of_signal_struct == 1 - InvariantResult [Line: 6608]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 8083]: Loop Invariant Derived loop invariant: (1 == ldv_mutex_mutex_of_device && ldv_mutex_lock == 1) && ldv_mutex_cred_guard_mutex_of_signal_struct == 1 - InvariantResult [Line: 7287]: Loop Invariant Derived loop invariant: (1 == ldv_mutex_mutex_of_device && ldv_mutex_lock == 1) && ldv_mutex_cred_guard_mutex_of_signal_struct == 1 - InvariantResult [Line: 6747]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 8004]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 7343]: Loop Invariant Derived loop invariant: (1 == ldv_mutex_mutex_of_device && ldv_mutex_lock == 1) && ldv_mutex_cred_guard_mutex_of_signal_struct == 1 - InvariantResult [Line: 7454]: Loop Invariant Derived loop invariant: (1 == ldv_mutex_mutex_of_device && ldv_mutex_lock == 1) && ldv_mutex_cred_guard_mutex_of_signal_struct == 1 - InvariantResult [Line: 7518]: Loop Invariant Derived loop invariant: (1 == ldv_mutex_mutex_of_device && ldv_mutex_lock == 1) && ldv_mutex_cred_guard_mutex_of_signal_struct == 1 - InvariantResult [Line: 7401]: Loop Invariant Derived loop invariant: (1 == ldv_mutex_mutex_of_device && ldv_mutex_lock == 1) && ldv_mutex_cred_guard_mutex_of_signal_struct == 1 - InvariantResult [Line: 7420]: Loop Invariant Derived loop invariant: (1 == ldv_mutex_mutex_of_device && ldv_mutex_lock == 1) && ldv_mutex_cred_guard_mutex_of_signal_struct == 1 - InvariantResult [Line: 7395]: Loop Invariant Derived loop invariant: (1 == ldv_mutex_mutex_of_device && ldv_mutex_lock == 1) && ldv_mutex_cred_guard_mutex_of_signal_struct == 1 - InvariantResult [Line: 6557]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 7248]: Loop Invariant Derived loop invariant: (1 == ldv_mutex_mutex_of_device && ldv_mutex_lock == 1) && ldv_mutex_cred_guard_mutex_of_signal_struct == 1 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: (1 == ldv_mutex_mutex_of_device && ldv_mutex_lock == 1) && ldv_mutex_cred_guard_mutex_of_signal_struct == 1 - InvariantResult [Line: 7505]: Loop Invariant Derived loop invariant: (1 == ldv_mutex_mutex_of_device && ldv_mutex_lock == 1) && ldv_mutex_cred_guard_mutex_of_signal_struct == 1 - InvariantResult [Line: 7259]: Loop Invariant Derived loop invariant: (1 == ldv_mutex_mutex_of_device && ldv_mutex_lock == 1) && ldv_mutex_cred_guard_mutex_of_signal_struct == 1 - InvariantResult [Line: 6741]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 7395]: Loop Invariant Derived loop invariant: (1 == ldv_mutex_mutex_of_device && ldv_mutex_lock == 1) && ldv_mutex_cred_guard_mutex_of_signal_struct == 1 - InvariantResult [Line: 7234]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-12-14 07:51:42,307 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661c1e40-c966-4e3d-910a-33d3c23ed442/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