./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.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_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8 --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a4ce0bc2df24452096decdc7e961550a8934d52ee8eab37caec2ef22f016be61 --- 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 [2022-12-13 17:47:40,662 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 17:47:40,664 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 17:47:40,681 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 17:47:40,681 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 17:47:40,682 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 17:47:40,683 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 17:47:40,685 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 17:47:40,686 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 17:47:40,687 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 17:47:40,688 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 17:47:40,689 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 17:47:40,689 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 17:47:40,690 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 17:47:40,691 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 17:47:40,692 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 17:47:40,692 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 17:47:40,693 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 17:47:40,695 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 17:47:40,696 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 17:47:40,697 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 17:47:40,699 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 17:47:40,700 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 17:47:40,700 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 17:47:40,703 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 17:47:40,704 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 17:47:40,704 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 17:47:40,705 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 17:47:40,705 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 17:47:40,706 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 17:47:40,706 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 17:47:40,707 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 17:47:40,707 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 17:47:40,708 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 17:47:40,709 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 17:47:40,709 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 17:47:40,710 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 17:47:40,710 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 17:47:40,710 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 17:47:40,711 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 17:47:40,711 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 17:47:40,712 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-12-13 17:47:40,731 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 17:47:40,731 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 17:47:40,731 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 17:47:40,731 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 17:47:40,732 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 17:47:40,743 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 17:47:40,743 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 17:47:40,744 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 17:47:40,744 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 17:47:40,744 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 17:47:40,744 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 17:47:40,745 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 17:47:40,745 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 17:47:40,745 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 17:47:40,745 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 17:47:40,745 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 17:47:40,745 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 17:47:40,746 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 17:47:40,746 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 17:47:40,746 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 17:47:40,746 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 17:47:40,746 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 17:47:40,747 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 17:47:40,747 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 17:47:40,747 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 17:47:40,747 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 17:47:40,747 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 17:47:40,748 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 17:47:40,748 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 17:47:40,748 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 17:47:40,748 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 17:47:40,748 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 17:47:40,748 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a4ce0bc2df24452096decdc7e961550a8934d52ee8eab37caec2ef22f016be61 [2022-12-13 17:47:40,925 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 17:47:40,941 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 17:47:40,943 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 17:47:40,944 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 17:47:40,944 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 17:47:40,945 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i [2022-12-13 17:47:43,601 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 17:47:44,026 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 17:47:44,027 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i [2022-12-13 17:47:44,055 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/data/e87e2502d/1c6a5e89a12f4a5390dec9bfd20e3687/FLAGe5bc6e303 [2022-12-13 17:47:44,066 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/data/e87e2502d/1c6a5e89a12f4a5390dec9bfd20e3687 [2022-12-13 17:47:44,068 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 17:47:44,069 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 17:47:44,071 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 17:47:44,071 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 17:47:44,073 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 17:47:44,074 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:47:44" (1/1) ... [2022-12-13 17:47:44,075 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@247274ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:47:44, skipping insertion in model container [2022-12-13 17:47:44,075 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:47:44" (1/1) ... [2022-12-13 17:47:44,080 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 17:47:44,168 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 17:47:45,023 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-12-13 17:47:45,028 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-12-13 17:47:45,183 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-13 17:47:45,193 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-13 17:47:45,223 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-13 17:47:45,379 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-12-13 17:47:45,386 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-13 17:47:45,389 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-12-13 17:47:45,442 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-12-13 17:47:45,491 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-13 17:47:45,505 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-13 17:47:45,510 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-13 17:47:45,516 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 17:47:45,517 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:45,523 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 17:47:45,523 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:45,530 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 17:47:45,531 WARN L623 FunctionHandler]: Unknown extern function vme_irq_handler [2022-12-13 17:47:45,538 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 17:47:45,539 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 17:47:45,543 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:45,549 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-13 17:47:45,550 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:45,550 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:45,551 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:45,552 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:45,553 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:45,554 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:45,554 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:45,554 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:45,560 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:45,560 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:45,561 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:45,566 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 17:47:45,572 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 17:47:45,574 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:45,575 WARN L623 FunctionHandler]: Unknown extern function synchronize_irq [2022-12-13 17:47:45,580 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 17:47:45,581 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:45,581 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:45,582 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-12-13 17:47:45,583 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait_event [2022-12-13 17:47:45,584 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-12-13 17:47:45,584 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-12-13 17:47:45,584 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 17:47:45,585 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:45,592 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:45,593 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:45,594 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:45,595 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:45,595 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 17:47:45,596 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:45,597 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:45,598 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:45,598 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:45,601 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:45,602 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:45,609 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 17:47:45,610 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 17:47:45,611 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 17:47:45,611 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 17:47:45,619 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:45,621 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 17:47:45,621 WARN L623 FunctionHandler]: Unknown extern function release_resource [2022-12-13 17:47:45,622 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:45,623 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-13 17:47:45,626 WARN L623 FunctionHandler]: Unknown extern function pci_bus_alloc_resource [2022-12-13 17:47:45,626 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:45,628 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:45,628 WARN L623 FunctionHandler]: Unknown extern function release_resource [2022-12-13 17:47:45,629 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 17:47:45,634 WARN L623 FunctionHandler]: Unknown extern function release_resource [2022-12-13 17:47:45,634 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 17:47:45,640 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:45,640 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:45,641 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:45,642 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 17:47:45,643 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:45,645 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:45,647 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:45,648 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:45,649 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:45,650 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:45,650 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:45,651 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:45,657 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 17:47:45,658 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 17:47:45,658 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 17:47:45,659 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 17:47:45,673 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-13 17:47:45,674 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-13 17:47:45,675 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-13 17:47:45,676 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 17:47:45,677 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-13 17:47:45,684 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-13 17:47:45,691 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-13 17:47:45,691 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-13 17:47:45,692 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-13 17:47:45,693 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:45,694 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-13 17:47:45,694 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-13 17:47:45,700 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:45,701 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:45,701 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:45,702 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:45,702 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:45,702 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:45,702 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:45,703 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 17:47:45,703 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:45,709 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:45,710 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:45,712 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:45,712 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:45,713 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:45,715 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:45,717 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:45,719 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 17:47:45,725 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 17:47:45,731 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:45,731 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:45,732 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 17:47:45,732 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:45,733 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:45,733 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-12-13 17:47:45,734 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait_event [2022-12-13 17:47:45,734 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-12-13 17:47:45,735 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-12-13 17:47:45,735 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 17:47:45,735 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:45,736 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 17:47:45,736 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-13 17:47:45,741 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-13 17:47:45,742 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 17:47:45,747 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:45,748 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:45,749 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:45,750 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:45,751 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:45,756 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 17:47:45,756 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 17:47:45,763 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 17:47:45,763 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:45,764 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:45,765 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 17:47:45,765 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:45,766 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:45,771 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 17:47:45,772 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:45,772 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:45,773 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 17:47:45,773 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:45,778 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 17:47:45,793 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:45,794 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-13 17:47:45,794 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:45,795 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:45,796 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:45,796 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 17:47:45,797 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:45,802 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 17:47:45,802 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:45,802 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:45,805 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:45,806 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:45,806 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-12-13 17:47:45,806 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:45,807 WARN L623 FunctionHandler]: Unknown extern function pci_request_regions [2022-12-13 17:47:45,807 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:45,808 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:45,808 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 17:47:45,809 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:45,809 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-12-13 17:47:45,809 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-12-13 17:47:45,810 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-13 17:47:45,810 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-13 17:47:45,811 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:45,811 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:45,812 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-13 17:47:45,813 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:45,814 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-13 17:47:45,815 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:45,815 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-13 17:47:45,816 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:45,817 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-13 17:47:45,819 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 17:47:45,819 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-13 17:47:45,820 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-13 17:47:45,820 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:45,821 WARN L623 FunctionHandler]: Unknown extern function vme_register_bridge [2022-12-13 17:47:45,821 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:45,822 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-13 17:47:45,822 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 17:47:45,823 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-13 17:47:45,823 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 17:47:45,824 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-13 17:47:45,824 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 17:47:45,824 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-13 17:47:45,824 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 17:47:45,825 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-12-13 17:47:45,825 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-13 17:47:45,825 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 17:47:45,826 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 17:47:45,827 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:45,827 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:45,827 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:45,828 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:45,828 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:45,828 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:45,828 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:45,829 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:45,829 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:45,829 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:45,829 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:45,829 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:45,830 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:45,830 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:45,830 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:45,830 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:45,831 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:45,831 WARN L623 FunctionHandler]: Unknown extern function vme_unregister_bridge [2022-12-13 17:47:45,831 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-13 17:47:45,832 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 17:47:45,832 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-13 17:47:45,832 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 17:47:45,833 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-13 17:47:45,833 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 17:47:45,834 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-13 17:47:45,834 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 17:47:45,834 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-12-13 17:47:45,834 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-13 17:47:45,835 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 17:47:45,940 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-13 17:47:45,941 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-13 17:47:45,944 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-12-13 17:47:45,945 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-12-13 17:47:45,945 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-13 17:47:46,324 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-13 17:47:46,565 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-13 17:47:47,067 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[309910,309923] [2022-12-13 17:47:47,070 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[310055,310068] [2022-12-13 17:47:47,070 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[310201,310214] [2022-12-13 17:47:47,070 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[310366,310379] [2022-12-13 17:47:47,071 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[310524,310537] [2022-12-13 17:47:47,071 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[310682,310695] [2022-12-13 17:47:47,071 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[310840,310853] [2022-12-13 17:47:47,071 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[311000,311013] [2022-12-13 17:47:47,072 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[311159,311172] [2022-12-13 17:47:47,072 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[311298,311311] [2022-12-13 17:47:47,072 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[311440,311453] [2022-12-13 17:47:47,072 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[311589,311602] [2022-12-13 17:47:47,073 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[311728,311741] [2022-12-13 17:47:47,073 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[311883,311896] [2022-12-13 17:47:47,073 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[312043,312056] [2022-12-13 17:47:47,073 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[312194,312207] [2022-12-13 17:47:47,074 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[312345,312358] [2022-12-13 17:47:47,074 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[312497,312510] [2022-12-13 17:47:47,074 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[312646,312659] [2022-12-13 17:47:47,074 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[312794,312807] [2022-12-13 17:47:47,075 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[312951,312964] [2022-12-13 17:47:47,075 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[313100,313113] [2022-12-13 17:47:47,075 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[313256,313269] [2022-12-13 17:47:47,075 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[313409,313422] [2022-12-13 17:47:47,076 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[313555,313568] [2022-12-13 17:47:47,076 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[313698,313711] [2022-12-13 17:47:47,076 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[313850,313863] [2022-12-13 17:47:47,076 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[313996,314009] [2022-12-13 17:47:47,077 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[314141,314154] [2022-12-13 17:47:47,077 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[314295,314308] [2022-12-13 17:47:47,077 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[314446,314459] [2022-12-13 17:47:47,077 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[314601,314614] [2022-12-13 17:47:47,078 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[314753,314766] [2022-12-13 17:47:47,078 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[314908,314921] [2022-12-13 17:47:47,078 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[315072,315085] [2022-12-13 17:47:47,078 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[315228,315241] [2022-12-13 17:47:47,079 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[315392,315405] [2022-12-13 17:47:47,079 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[315534,315547] [2022-12-13 17:47:47,079 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[315692,315705] [2022-12-13 17:47:47,079 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[315859,315872] [2022-12-13 17:47:47,080 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[316018,316031] [2022-12-13 17:47:47,080 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[316177,316190] [2022-12-13 17:47:47,080 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[316326,316339] [2022-12-13 17:47:47,080 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[316473,316486] [2022-12-13 17:47:47,081 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[316612,316625] [2022-12-13 17:47:47,081 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[316775,316788] [2022-12-13 17:47:47,081 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[316941,316954] [2022-12-13 17:47:47,081 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[317105,317118] [2022-12-13 17:47:47,082 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[317270,317283] [2022-12-13 17:47:47,082 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[317435,317448] [2022-12-13 17:47:47,082 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[317601,317614] [2022-12-13 17:47:47,082 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[317766,317779] [2022-12-13 17:47:47,083 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[317933,317946] [2022-12-13 17:47:47,083 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[318093,318106] [2022-12-13 17:47:47,083 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[318255,318268] [2022-12-13 17:47:47,083 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[318414,318427] [2022-12-13 17:47:47,084 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[318560,318573] [2022-12-13 17:47:47,084 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[318703,318716] [2022-12-13 17:47:47,084 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[318847,318860] [2022-12-13 17:47:47,084 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[318990,319003] [2022-12-13 17:47:47,084 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[319134,319147] [2022-12-13 17:47:47,085 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[319275,319288] [2022-12-13 17:47:47,085 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[319413,319426] [2022-12-13 17:47:47,085 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[319571,319584] [2022-12-13 17:47:47,085 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[319730,319743] [2022-12-13 17:47:47,086 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[319886,319899] [2022-12-13 17:47:47,086 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[320035,320048] [2022-12-13 17:47:47,086 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[320187,320200] [2022-12-13 17:47:47,086 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[320338,320351] [2022-12-13 17:47:47,087 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[320487,320500] [2022-12-13 17:47:47,087 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[320639,320652] [2022-12-13 17:47:47,087 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[320787,320800] [2022-12-13 17:47:47,087 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[320940,320953] [2022-12-13 17:47:47,088 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[321091,321104] [2022-12-13 17:47:47,088 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[321241,321254] [2022-12-13 17:47:47,088 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[321388,321401] [2022-12-13 17:47:47,088 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[321539,321552] [2022-12-13 17:47:47,088 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[321690,321703] [2022-12-13 17:47:47,089 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[321838,321851] [2022-12-13 17:47:47,089 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[322004,322017] [2022-12-13 17:47:47,089 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[322173,322186] [2022-12-13 17:47:47,089 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[322340,322353] [2022-12-13 17:47:47,090 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[322508,322521] [2022-12-13 17:47:47,090 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[322658,322671] [2022-12-13 17:47:47,090 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[322805,322818] [2022-12-13 17:47:47,090 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[322966,322979] [2022-12-13 17:47:47,091 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[323136,323149] [2022-12-13 17:47:47,091 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[323298,323311] [2022-12-13 17:47:47,102 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:47:47,128 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 17:47:47,207 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-12-13 17:47:47,207 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-12-13 17:47:47,209 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-13 17:47:47,210 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-13 17:47:47,210 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-13 17:47:47,217 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-12-13 17:47:47,217 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-13 17:47:47,218 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-12-13 17:47:47,220 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-12-13 17:47:47,222 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-13 17:47:47,223 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-13 17:47:47,223 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-13 17:47:47,224 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 17:47:47,224 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:47,225 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 17:47:47,225 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:47,226 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 17:47:47,226 WARN L623 FunctionHandler]: Unknown extern function vme_irq_handler [2022-12-13 17:47:47,227 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 17:47:47,227 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 17:47:47,229 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:47,230 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-13 17:47:47,231 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:47,231 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:47,231 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:47,232 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:47,232 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:47,232 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:47,233 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:47,233 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:47,233 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:47,234 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:47,234 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:47,234 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 17:47:47,235 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 17:47:47,236 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:47,236 WARN L623 FunctionHandler]: Unknown extern function synchronize_irq [2022-12-13 17:47:47,237 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 17:47:47,237 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:47,238 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:47,238 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-12-13 17:47:47,238 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait_event [2022-12-13 17:47:47,239 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-12-13 17:47:47,239 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-12-13 17:47:47,239 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 17:47:47,240 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:47,243 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:47,244 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:47,244 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:47,244 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:47,245 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 17:47:47,245 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:47,245 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:47,246 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:47,246 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:47,247 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:47,248 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:47,249 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 17:47:47,249 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 17:47:47,250 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 17:47:47,250 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 17:47:47,254 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:47,255 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 17:47:47,255 WARN L623 FunctionHandler]: Unknown extern function release_resource [2022-12-13 17:47:47,256 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:47,256 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-13 17:47:47,257 WARN L623 FunctionHandler]: Unknown extern function pci_bus_alloc_resource [2022-12-13 17:47:47,259 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:47,259 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:47,260 WARN L623 FunctionHandler]: Unknown extern function release_resource [2022-12-13 17:47:47,260 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 17:47:47,261 WARN L623 FunctionHandler]: Unknown extern function release_resource [2022-12-13 17:47:47,261 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 17:47:47,263 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:47,264 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:47,264 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:47,265 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 17:47:47,265 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:47,266 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:47,268 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:47,269 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:47,269 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:47,269 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:47,270 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:47,270 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:47,271 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 17:47:47,272 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 17:47:47,272 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 17:47:47,272 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 17:47:47,275 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-13 17:47:47,276 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-13 17:47:47,277 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-13 17:47:47,277 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 17:47:47,278 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-13 17:47:47,278 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-13 17:47:47,280 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-13 17:47:47,280 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-13 17:47:47,281 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-13 17:47:47,281 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:47,282 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-13 17:47:47,282 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-13 17:47:47,285 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:47,285 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:47,285 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:47,285 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:47,286 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:47,286 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:47,286 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:47,286 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 17:47:47,287 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:47,289 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:47,289 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:47,290 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:47,291 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:47,291 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:47,292 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:47,293 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:47,295 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 17:47:47,295 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 17:47:47,298 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:47,299 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:47,299 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 17:47:47,299 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:47,299 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:47,300 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-12-13 17:47:47,301 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait_event [2022-12-13 17:47:47,303 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-12-13 17:47:47,304 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-12-13 17:47:47,304 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 17:47:47,304 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:47,304 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 17:47:47,305 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-13 17:47:47,305 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-13 17:47:47,306 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 17:47:47,307 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:47,308 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:47,309 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:47,310 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:47,310 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:47,311 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 17:47:47,311 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 17:47:47,313 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 17:47:47,314 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:47,314 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:47,315 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 17:47:47,315 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:47,315 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:47,316 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 17:47:47,316 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:47,316 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:47,317 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 17:47:47,317 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:47,318 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 17:47:47,319 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:47,319 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-13 17:47:47,319 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:47,320 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:47,320 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:47,321 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 17:47:47,321 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:47,321 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 17:47:47,322 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:47,322 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:47,323 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:47,324 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:47,324 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-12-13 17:47:47,324 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:47,324 WARN L623 FunctionHandler]: Unknown extern function pci_request_regions [2022-12-13 17:47:47,325 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:47,325 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:47,326 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 17:47:47,326 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:47,326 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-12-13 17:47:47,326 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-12-13 17:47:47,327 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-13 17:47:47,327 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-13 17:47:47,327 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:47,328 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:47,340 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-13 17:47:47,342 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:47,344 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-13 17:47:47,345 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:47,347 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-13 17:47:47,348 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:47,350 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-13 17:47:47,356 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 17:47:47,357 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-13 17:47:47,357 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-13 17:47:47,358 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:47,358 WARN L623 FunctionHandler]: Unknown extern function vme_register_bridge [2022-12-13 17:47:47,358 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 17:47:47,359 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-13 17:47:47,359 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 17:47:47,360 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-13 17:47:47,360 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 17:47:47,361 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-13 17:47:47,361 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 17:47:47,362 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-13 17:47:47,362 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 17:47:47,363 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-12-13 17:47:47,363 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-13 17:47:47,363 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 17:47:47,363 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 17:47:47,365 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:47,365 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:47,365 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:47,366 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:47,366 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:47,366 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:47,367 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:47,367 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:47,367 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:47,368 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:47,368 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:47,368 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:47,368 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:47,369 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:47,369 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:47,369 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:47,370 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 17:47:47,370 WARN L623 FunctionHandler]: Unknown extern function vme_unregister_bridge [2022-12-13 17:47:47,370 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-13 17:47:47,371 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 17:47:47,371 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-13 17:47:47,372 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 17:47:47,372 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-13 17:47:47,373 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 17:47:47,373 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-13 17:47:47,373 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 17:47:47,374 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-12-13 17:47:47,374 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-13 17:47:47,374 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 17:47:47,387 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-13 17:47:47,388 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-13 17:47:47,391 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-12-13 17:47:47,391 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-12-13 17:47:47,392 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-13 17:47:47,409 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-13 17:47:47,417 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-13 17:47:47,446 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[309910,309923] [2022-12-13 17:47:47,447 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[310055,310068] [2022-12-13 17:47:47,447 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[310201,310214] [2022-12-13 17:47:47,448 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[310366,310379] [2022-12-13 17:47:47,448 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[310524,310537] [2022-12-13 17:47:47,449 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[310682,310695] [2022-12-13 17:47:47,449 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[310840,310853] [2022-12-13 17:47:47,449 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[311000,311013] [2022-12-13 17:47:47,450 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[311159,311172] [2022-12-13 17:47:47,450 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[311298,311311] [2022-12-13 17:47:47,450 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[311440,311453] [2022-12-13 17:47:47,451 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[311589,311602] [2022-12-13 17:47:47,451 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[311728,311741] [2022-12-13 17:47:47,452 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[311883,311896] [2022-12-13 17:47:47,452 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[312043,312056] [2022-12-13 17:47:47,452 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[312194,312207] [2022-12-13 17:47:47,453 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[312345,312358] [2022-12-13 17:47:47,453 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[312497,312510] [2022-12-13 17:47:47,453 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[312646,312659] [2022-12-13 17:47:47,454 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[312794,312807] [2022-12-13 17:47:47,454 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[312951,312964] [2022-12-13 17:47:47,454 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[313100,313113] [2022-12-13 17:47:47,455 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[313256,313269] [2022-12-13 17:47:47,455 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[313409,313422] [2022-12-13 17:47:47,456 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[313555,313568] [2022-12-13 17:47:47,456 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[313698,313711] [2022-12-13 17:47:47,456 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[313850,313863] [2022-12-13 17:47:47,457 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[313996,314009] [2022-12-13 17:47:47,457 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[314141,314154] [2022-12-13 17:47:47,457 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[314295,314308] [2022-12-13 17:47:47,458 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[314446,314459] [2022-12-13 17:47:47,458 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[314601,314614] [2022-12-13 17:47:47,458 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[314753,314766] [2022-12-13 17:47:47,459 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[314908,314921] [2022-12-13 17:47:47,459 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[315072,315085] [2022-12-13 17:47:47,459 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[315228,315241] [2022-12-13 17:47:47,460 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[315392,315405] [2022-12-13 17:47:47,460 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[315534,315547] [2022-12-13 17:47:47,461 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[315692,315705] [2022-12-13 17:47:47,461 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[315859,315872] [2022-12-13 17:47:47,461 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[316018,316031] [2022-12-13 17:47:47,462 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[316177,316190] [2022-12-13 17:47:47,462 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[316326,316339] [2022-12-13 17:47:47,463 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[316473,316486] [2022-12-13 17:47:47,463 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[316612,316625] [2022-12-13 17:47:47,463 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[316775,316788] [2022-12-13 17:47:47,464 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[316941,316954] [2022-12-13 17:47:47,464 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[317105,317118] [2022-12-13 17:47:47,464 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[317270,317283] [2022-12-13 17:47:47,465 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[317435,317448] [2022-12-13 17:47:47,465 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[317601,317614] [2022-12-13 17:47:47,465 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[317766,317779] [2022-12-13 17:47:47,466 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[317933,317946] [2022-12-13 17:47:47,466 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[318093,318106] [2022-12-13 17:47:47,467 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[318255,318268] [2022-12-13 17:47:47,467 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[318414,318427] [2022-12-13 17:47:47,467 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[318560,318573] [2022-12-13 17:47:47,468 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[318703,318716] [2022-12-13 17:47:47,468 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[318847,318860] [2022-12-13 17:47:47,468 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[318990,319003] [2022-12-13 17:47:47,469 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[319134,319147] [2022-12-13 17:47:47,469 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[319275,319288] [2022-12-13 17:47:47,469 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[319413,319426] [2022-12-13 17:47:47,470 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[319571,319584] [2022-12-13 17:47:47,470 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[319730,319743] [2022-12-13 17:47:47,470 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[319886,319899] [2022-12-13 17:47:47,471 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[320035,320048] [2022-12-13 17:47:47,471 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[320187,320200] [2022-12-13 17:47:47,472 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[320338,320351] [2022-12-13 17:47:47,472 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[320487,320500] [2022-12-13 17:47:47,472 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[320639,320652] [2022-12-13 17:47:47,473 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[320787,320800] [2022-12-13 17:47:47,473 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[320940,320953] [2022-12-13 17:47:47,473 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[321091,321104] [2022-12-13 17:47:47,474 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[321241,321254] [2022-12-13 17:47:47,474 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[321388,321401] [2022-12-13 17:47:47,474 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[321539,321552] [2022-12-13 17:47:47,475 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[321690,321703] [2022-12-13 17:47:47,475 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[321838,321851] [2022-12-13 17:47:47,476 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[322004,322017] [2022-12-13 17:47:47,476 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[322173,322186] [2022-12-13 17:47:47,476 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[322340,322353] [2022-12-13 17:47:47,477 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[322508,322521] [2022-12-13 17:47:47,477 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[322658,322671] [2022-12-13 17:47:47,477 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[322805,322818] [2022-12-13 17:47:47,478 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[322966,322979] [2022-12-13 17:47:47,478 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[323136,323149] [2022-12-13 17:47:47,478 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_2e76b33f-382b-4103-aa76-7678f7d759a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[323298,323311] [2022-12-13 17:47:47,481 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:47:47,629 INFO L208 MainTranslator]: Completed translation [2022-12-13 17:47:47,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:47:47 WrapperNode [2022-12-13 17:47:47,629 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 17:47:47,630 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 17:47:47,631 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 17:47:47,631 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 17:47:47,637 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:47:47" (1/1) ... [2022-12-13 17:47:47,700 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:47:47" (1/1) ... [2022-12-13 17:47:47,779 INFO L138 Inliner]: procedures = 571, calls = 1721, calls flagged for inlining = 244, calls inlined = 125, statements flattened = 2377 [2022-12-13 17:47:47,779 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 17:47:47,780 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 17:47:47,780 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 17:47:47,780 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 17:47:47,788 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:47:47" (1/1) ... [2022-12-13 17:47:47,788 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:47:47" (1/1) ... [2022-12-13 17:47:47,796 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:47:47" (1/1) ... [2022-12-13 17:47:47,796 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:47:47" (1/1) ... [2022-12-13 17:47:47,838 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:47:47" (1/1) ... [2022-12-13 17:47:47,843 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:47:47" (1/1) ... [2022-12-13 17:47:47,851 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:47:47" (1/1) ... [2022-12-13 17:47:47,857 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:47:47" (1/1) ... [2022-12-13 17:47:47,868 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 17:47:47,869 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 17:47:47,869 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 17:47:47,869 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 17:47:47,869 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:47:47" (1/1) ... [2022-12-13 17:47:47,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 17:47:47,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:47:47,893 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 17:47:47,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 17:47:47,922 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2022-12-13 17:47:47,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2022-12-13 17:47:47,922 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-12-13 17:47:47,922 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-12-13 17:47:47,922 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-12-13 17:47:47,923 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-12-13 17:47:47,923 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-13 17:47:47,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-13 17:47:47,923 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_io_mem_remap [2022-12-13 17:47:47,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_io_mem_remap [2022-12-13 17:47:47,923 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-12-13 17:47:47,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-12-13 17:47:47,923 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2022-12-13 17:47:47,923 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2022-12-13 17:47:47,923 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2022-12-13 17:47:47,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2022-12-13 17:47:47,923 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2022-12-13 17:47:47,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2022-12-13 17:47:47,923 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-12-13 17:47:47,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-12-13 17:47:47,924 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-12-13 17:47:47,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-12-13 17:47:47,924 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-12-13 17:47:47,924 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-12-13 17:47:47,924 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-12-13 17:47:47,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-12-13 17:47:47,924 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2022-12-13 17:47:47,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2022-12-13 17:47:47,924 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 17:47:47,924 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-12-13 17:47:47,924 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-12-13 17:47:47,925 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-12-13 17:47:47,925 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-12-13 17:47:47,925 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2022-12-13 17:47:47,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2022-12-13 17:47:47,925 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_mtx_of_vme_dma_resource [2022-12-13 17:47:47,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_mtx_of_vme_dma_resource [2022-12-13 17:47:47,925 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2022-12-13 17:47:47,925 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2022-12-13 17:47:47,925 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-12-13 17:47:47,925 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-12-13 17:47:47,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-13 17:47:47,925 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2022-12-13 17:47:47,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2022-12-13 17:47:47,925 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-12-13 17:47:47,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-12-13 17:47:47,926 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-12-13 17:47:47,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-12-13 17:47:47,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 17:47:47,926 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2022-12-13 17:47:47,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2022-12-13 17:47:47,926 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-12-13 17:47:47,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-12-13 17:47:47,926 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2022-12-13 17:47:47,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2022-12-13 17:47:47,926 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-12-13 17:47:47,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-12-13 17:47:47,926 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-12-13 17:47:47,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-12-13 17:47:47,927 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2022-12-13 17:47:47,927 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2022-12-13 17:47:47,927 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-12-13 17:47:47,927 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-12-13 17:47:47,927 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-12-13 17:47:47,927 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-12-13 17:47:47,927 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2022-12-13 17:47:47,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2022-12-13 17:47:47,927 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-12-13 17:47:47,927 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-12-13 17:47:47,927 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-12-13 17:47:47,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-12-13 17:47:47,927 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_phys [2022-12-13 17:47:47,928 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_phys [2022-12-13 17:47:47,928 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 17:47:47,928 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-12-13 17:47:47,928 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-12-13 17:47:47,928 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 17:47:47,928 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-12-13 17:47:47,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-12-13 17:47:47,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-13 17:47:47,928 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-12-13 17:47:47,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-12-13 17:47:47,928 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-12-13 17:47:47,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-12-13 17:47:47,928 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_mtx_of_vme_dma_resource [2022-12-13 17:47:47,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_mtx_of_vme_dma_resource [2022-12-13 17:47:47,929 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2022-12-13 17:47:47,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2022-12-13 17:47:47,929 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-12-13 17:47:47,929 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-12-13 17:47:47,929 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-12-13 17:47:47,929 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-12-13 17:47:47,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 17:47:47,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 17:47:47,929 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-12-13 17:47:47,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-12-13 17:47:47,929 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-13 17:47:47,929 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-13 17:47:47,929 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_io_mem_unmap [2022-12-13 17:47:47,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_io_mem_unmap [2022-12-13 17:47:47,930 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2022-12-13 17:47:47,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2022-12-13 17:47:47,930 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2022-12-13 17:47:47,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2022-12-13 17:47:47,930 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 17:47:47,930 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-12-13 17:47:47,930 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-12-13 17:47:47,930 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2022-12-13 17:47:47,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2022-12-13 17:47:47,930 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-13 17:47:47,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-13 17:47:47,930 INFO L130 BoogieDeclarations]: Found specification of procedure ca91cx42_slot_get [2022-12-13 17:47:47,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ca91cx42_slot_get [2022-12-13 17:47:47,931 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-12-13 17:47:47,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-12-13 17:47:47,931 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-12-13 17:47:47,931 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-12-13 17:47:47,931 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-12-13 17:47:47,931 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-12-13 17:47:47,931 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2022-12-13 17:47:47,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2022-12-13 17:47:47,931 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-12-13 17:47:47,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-12-13 17:47:47,931 INFO L130 BoogieDeclarations]: Found specification of procedure ca91cx42_irq_exit [2022-12-13 17:47:47,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ca91cx42_irq_exit [2022-12-13 17:47:47,932 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-12-13 17:47:47,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-12-13 17:47:47,932 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-12-13 17:47:47,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-12-13 17:47:47,932 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-12-13 17:47:47,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-12-13 17:47:47,932 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2022-12-13 17:47:47,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2022-12-13 17:47:47,932 INFO L130 BoogieDeclarations]: Found specification of procedure ca91cx42_crcsr_exit [2022-12-13 17:47:47,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ca91cx42_crcsr_exit [2022-12-13 17:47:47,932 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-12-13 17:47:47,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-12-13 17:47:47,932 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-12-13 17:47:47,932 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-12-13 17:47:47,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-12-13 17:47:47,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-12-13 17:47:47,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 17:47:47,933 INFO L130 BoogieDeclarations]: Found specification of procedure ca91cx42_remove [2022-12-13 17:47:47,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ca91cx42_remove [2022-12-13 17:47:47,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2022-12-13 17:47:47,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2022-12-13 17:47:47,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-12-13 17:47:47,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-12-13 17:47:47,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2022-12-13 17:47:47,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2022-12-13 17:47:47,933 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-12-13 17:47:47,933 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-12-13 17:47:47,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-12-13 17:47:47,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-12-13 17:47:47,934 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-12-13 17:47:47,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-12-13 17:47:47,934 INFO L130 BoogieDeclarations]: Found specification of procedure ca91cx42_dma_busy [2022-12-13 17:47:47,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ca91cx42_dma_busy [2022-12-13 17:47:47,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 17:47:48,315 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 17:47:48,318 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 17:47:48,402 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-12-13 17:47:50,327 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 17:47:50,337 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 17:47:50,337 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-12-13 17:47:50,339 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:47:50 BoogieIcfgContainer [2022-12-13 17:47:50,339 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 17:47:50,341 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 17:47:50,341 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 17:47:50,343 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 17:47:50,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 05:47:44" (1/3) ... [2022-12-13 17:47:50,344 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7771f2cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 05:47:50, skipping insertion in model container [2022-12-13 17:47:50,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:47:47" (2/3) ... [2022-12-13 17:47:50,344 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7771f2cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 05:47:50, skipping insertion in model container [2022-12-13 17:47:50,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:47:50" (3/3) ... [2022-12-13 17:47:50,345 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i [2022-12-13 17:47:50,358 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 17:47:50,358 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2022-12-13 17:47:50,429 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 17:47:50,434 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=PETRI_NET, 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;@2af63f96, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 17:47:50,434 INFO L358 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2022-12-13 17:47:50,443 INFO L276 IsEmpty]: Start isEmpty. Operand has 962 states, 611 states have (on average 1.2422258592471358) internal successors, (759), 652 states have internal predecessors, (759), 250 states have call successors, (250), 73 states have call predecessors, (250), 72 states have return successors, (247), 247 states have call predecessors, (247), 247 states have call successors, (247) [2022-12-13 17:47:50,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-12-13 17:47:50,451 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:47:50,451 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:47:50,452 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-13 17:47:50,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:47:50,456 INFO L85 PathProgramCache]: Analyzing trace with hash 49213849, now seen corresponding path program 1 times [2022-12-13 17:47:50,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:47:50,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187504443] [2022-12-13 17:47:50,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:47:50,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:47:50,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:47:51,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 17:47:51,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:47:51,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 17:47:51,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:47:51,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 17:47:51,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:47:51,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 17:47:51,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:47:51,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 17:47:51,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:47:51,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-12-13 17:47:51,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:47:51,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:47:51,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:47:51,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 17:47:51,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:47:51,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 17:47:51,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:47:51,129 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-12-13 17:47:51,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:47:51,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187504443] [2022-12-13 17:47:51,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187504443] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:47:51,130 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:47:51,130 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 17:47:51,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597660376] [2022-12-13 17:47:51,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:47:51,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 17:47:51,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:47:51,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 17:47:51,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:47:51,159 INFO L87 Difference]: Start difference. First operand has 962 states, 611 states have (on average 1.2422258592471358) internal successors, (759), 652 states have internal predecessors, (759), 250 states have call successors, (250), 73 states have call predecessors, (250), 72 states have return successors, (247), 247 states have call predecessors, (247), 247 states have call successors, (247) Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-12-13 17:47:54,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:47:54,190 INFO L93 Difference]: Finished difference Result 2814 states and 3812 transitions. [2022-12-13 17:47:54,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 17:47:54,192 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 64 [2022-12-13 17:47:54,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:47:54,210 INFO L225 Difference]: With dead ends: 2814 [2022-12-13 17:47:54,210 INFO L226 Difference]: Without dead ends: 1858 [2022-12-13 17:47:54,217 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-12-13 17:47:54,219 INFO L413 NwaCegarLoop]: 931 mSDtfsCounter, 2404 mSDsluCounter, 1927 mSDsCounter, 0 mSdLazyCounter, 3130 mSolverCounterSat, 1416 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2543 SdHoareTripleChecker+Valid, 2858 SdHoareTripleChecker+Invalid, 4546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1416 IncrementalHoareTripleChecker+Valid, 3130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-12-13 17:47:54,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2543 Valid, 2858 Invalid, 4546 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1416 Valid, 3130 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-12-13 17:47:54,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1858 states. [2022-12-13 17:47:54,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1858 to 1665. [2022-12-13 17:47:54,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1665 states, 1073 states have (on average 1.1910531220876048) internal successors, (1278), 1128 states have internal predecessors, (1278), 443 states have call successors, (443), 124 states have call predecessors, (443), 121 states have return successors, (442), 434 states have call predecessors, (442), 441 states have call successors, (442) [2022-12-13 17:47:54,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1665 states to 1665 states and 2163 transitions. [2022-12-13 17:47:54,359 INFO L78 Accepts]: Start accepts. Automaton has 1665 states and 2163 transitions. Word has length 64 [2022-12-13 17:47:54,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:47:54,360 INFO L495 AbstractCegarLoop]: Abstraction has 1665 states and 2163 transitions. [2022-12-13 17:47:54,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-12-13 17:47:54,360 INFO L276 IsEmpty]: Start isEmpty. Operand 1665 states and 2163 transitions. [2022-12-13 17:47:54,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-12-13 17:47:54,362 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:47:54,362 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:47:54,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 17:47:54,363 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-13 17:47:54,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:47:54,363 INFO L85 PathProgramCache]: Analyzing trace with hash -440956411, now seen corresponding path program 1 times [2022-12-13 17:47:54,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:47:54,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785816336] [2022-12-13 17:47:54,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:47:54,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:47:54,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:47:54,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 17:47:54,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:47:54,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 17:47:54,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:47:54,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 17:47:54,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:47:54,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 17:47:54,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:47:54,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 17:47:54,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:47:54,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-12-13 17:47:54,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:47:54,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:47:54,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:47:54,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 17:47:54,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:47:54,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 17:47:54,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:47:54,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-12-13 17:47:54,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:47:54,750 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-12-13 17:47:54,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:47:54,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785816336] [2022-12-13 17:47:54,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785816336] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:47:54,751 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:47:54,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 17:47:54,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186874666] [2022-12-13 17:47:54,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:47:54,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 17:47:54,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:47:54,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 17:47:54,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:47:54,754 INFO L87 Difference]: Start difference. First operand 1665 states and 2163 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-13 17:47:56,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:47:56,399 INFO L93 Difference]: Finished difference Result 1665 states and 2163 transitions. [2022-12-13 17:47:56,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 17:47:56,400 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 70 [2022-12-13 17:47:56,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:47:56,409 INFO L225 Difference]: With dead ends: 1665 [2022-12-13 17:47:56,409 INFO L226 Difference]: Without dead ends: 1663 [2022-12-13 17:47:56,410 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-12-13 17:47:56,411 INFO L413 NwaCegarLoop]: 609 mSDtfsCounter, 1651 mSDsluCounter, 1072 mSDsCounter, 0 mSdLazyCounter, 1645 mSolverCounterSat, 876 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1791 SdHoareTripleChecker+Valid, 1681 SdHoareTripleChecker+Invalid, 2521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 876 IncrementalHoareTripleChecker+Valid, 1645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-13 17:47:56,411 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1791 Valid, 1681 Invalid, 2521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [876 Valid, 1645 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-13 17:47:56,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1663 states. [2022-12-13 17:47:56,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1663 to 1663. [2022-12-13 17:47:56,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1663 states, 1072 states have (on average 1.1902985074626866) internal successors, (1276), 1126 states have internal predecessors, (1276), 443 states have call successors, (443), 124 states have call predecessors, (443), 121 states have return successors, (442), 434 states have call predecessors, (442), 441 states have call successors, (442) [2022-12-13 17:47:56,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1663 states to 1663 states and 2161 transitions. [2022-12-13 17:47:56,516 INFO L78 Accepts]: Start accepts. Automaton has 1663 states and 2161 transitions. Word has length 70 [2022-12-13 17:47:56,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:47:56,516 INFO L495 AbstractCegarLoop]: Abstraction has 1663 states and 2161 transitions. [2022-12-13 17:47:56,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-13 17:47:56,516 INFO L276 IsEmpty]: Start isEmpty. Operand 1663 states and 2161 transitions. [2022-12-13 17:47:56,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-12-13 17:47:56,518 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:47:56,519 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:47:56,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 17:47:56,519 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-13 17:47:56,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:47:56,520 INFO L85 PathProgramCache]: Analyzing trace with hash -2018737495, now seen corresponding path program 1 times [2022-12-13 17:47:56,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:47:56,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439693086] [2022-12-13 17:47:56,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:47:56,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:47:56,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:47:56,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 17:47:56,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:47:56,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 17:47:56,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:47:56,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 17:47:56,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:47:56,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 17:47:56,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:47:56,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 17:47:56,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:47:56,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-12-13 17:47:56,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:47:56,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:47:56,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:47:56,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 17:47:56,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:47:56,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 17:47:56,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:47:56,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-12-13 17:47:56,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:47:56,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 17:47:56,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:47:56,779 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-12-13 17:47:56,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:47:56,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439693086] [2022-12-13 17:47:56,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439693086] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:47:56,779 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:47:56,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 17:47:56,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260462655] [2022-12-13 17:47:56,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:47:56,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 17:47:56,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:47:56,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 17:47:56,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:47:56,781 INFO L87 Difference]: Start difference. First operand 1663 states and 2161 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-13 17:47:58,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:47:58,396 INFO L93 Difference]: Finished difference Result 1663 states and 2161 transitions. [2022-12-13 17:47:58,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 17:47:58,397 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 76 [2022-12-13 17:47:58,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:47:58,402 INFO L225 Difference]: With dead ends: 1663 [2022-12-13 17:47:58,402 INFO L226 Difference]: Without dead ends: 1661 [2022-12-13 17:47:58,403 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-12-13 17:47:58,404 INFO L413 NwaCegarLoop]: 609 mSDtfsCounter, 1645 mSDsluCounter, 1072 mSDsCounter, 0 mSdLazyCounter, 1641 mSolverCounterSat, 876 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1784 SdHoareTripleChecker+Valid, 1681 SdHoareTripleChecker+Invalid, 2517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 876 IncrementalHoareTripleChecker+Valid, 1641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-13 17:47:58,404 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1784 Valid, 1681 Invalid, 2517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [876 Valid, 1641 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-13 17:47:58,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1661 states. [2022-12-13 17:47:58,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1661 to 1661. [2022-12-13 17:47:58,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1661 states, 1071 states have (on average 1.1895424836601307) internal successors, (1274), 1124 states have internal predecessors, (1274), 443 states have call successors, (443), 124 states have call predecessors, (443), 121 states have return successors, (442), 434 states have call predecessors, (442), 441 states have call successors, (442) [2022-12-13 17:47:58,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1661 states to 1661 states and 2159 transitions. [2022-12-13 17:47:58,470 INFO L78 Accepts]: Start accepts. Automaton has 1661 states and 2159 transitions. Word has length 76 [2022-12-13 17:47:58,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:47:58,470 INFO L495 AbstractCegarLoop]: Abstraction has 1661 states and 2159 transitions. [2022-12-13 17:47:58,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-13 17:47:58,470 INFO L276 IsEmpty]: Start isEmpty. Operand 1661 states and 2159 transitions. [2022-12-13 17:47:58,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-12-13 17:47:58,472 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:47:58,472 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:47:58,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 17:47:58,473 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-13 17:47:58,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:47:58,473 INFO L85 PathProgramCache]: Analyzing trace with hash 477243310, now seen corresponding path program 1 times [2022-12-13 17:47:58,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:47:58,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578565262] [2022-12-13 17:47:58,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:47:58,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:47:58,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:47:58,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 17:47:58,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:47:58,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 17:47:58,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:47:58,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 17:47:58,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:47:58,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 17:47:58,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:47:58,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 17:47:58,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:47:58,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-12-13 17:47:58,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:47:58,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:47:58,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:47:58,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 17:47:58,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:47:58,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 17:47:58,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:47:58,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-12-13 17:47:58,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:47:58,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 17:47:58,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:47:58,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 17:47:58,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:47:58,711 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-12-13 17:47:58,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:47:58,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578565262] [2022-12-13 17:47:58,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578565262] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:47:58,712 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:47:58,712 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 17:47:58,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145100004] [2022-12-13 17:47:58,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:47:58,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 17:47:58,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:47:58,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 17:47:58,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:47:58,713 INFO L87 Difference]: Start difference. First operand 1661 states and 2159 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 17:48:00,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:48:00,190 INFO L93 Difference]: Finished difference Result 1661 states and 2159 transitions. [2022-12-13 17:48:00,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 17:48:00,190 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 82 [2022-12-13 17:48:00,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:48:00,197 INFO L225 Difference]: With dead ends: 1661 [2022-12-13 17:48:00,197 INFO L226 Difference]: Without dead ends: 1659 [2022-12-13 17:48:00,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-12-13 17:48:00,199 INFO L413 NwaCegarLoop]: 609 mSDtfsCounter, 1639 mSDsluCounter, 1072 mSDsCounter, 0 mSdLazyCounter, 1637 mSolverCounterSat, 876 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1777 SdHoareTripleChecker+Valid, 1681 SdHoareTripleChecker+Invalid, 2513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 876 IncrementalHoareTripleChecker+Valid, 1637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-13 17:48:00,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1777 Valid, 1681 Invalid, 2513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [876 Valid, 1637 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-13 17:48:00,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1659 states. [2022-12-13 17:48:00,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1659 to 1659. [2022-12-13 17:48:00,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1659 states, 1070 states have (on average 1.188785046728972) internal successors, (1272), 1122 states have internal predecessors, (1272), 443 states have call successors, (443), 124 states have call predecessors, (443), 121 states have return successors, (442), 434 states have call predecessors, (442), 441 states have call successors, (442) [2022-12-13 17:48:00,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1659 states to 1659 states and 2157 transitions. [2022-12-13 17:48:00,310 INFO L78 Accepts]: Start accepts. Automaton has 1659 states and 2157 transitions. Word has length 82 [2022-12-13 17:48:00,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:48:00,310 INFO L495 AbstractCegarLoop]: Abstraction has 1659 states and 2157 transitions. [2022-12-13 17:48:00,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 17:48:00,311 INFO L276 IsEmpty]: Start isEmpty. Operand 1659 states and 2157 transitions. [2022-12-13 17:48:00,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-12-13 17:48:00,313 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:48:00,313 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:48:00,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 17:48:00,313 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-13 17:48:00,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:48:00,314 INFO L85 PathProgramCache]: Analyzing trace with hash 651406996, now seen corresponding path program 1 times [2022-12-13 17:48:00,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:48:00,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605452670] [2022-12-13 17:48:00,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:48:00,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:48:00,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:00,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 17:48:00,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:00,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 17:48:00,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:00,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 17:48:00,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:00,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 17:48:00,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:00,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 17:48:00,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:00,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-12-13 17:48:00,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:00,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:00,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:00,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 17:48:00,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:00,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 17:48:00,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:00,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-12-13 17:48:00,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:00,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 17:48:00,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:00,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 17:48:00,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:00,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-12-13 17:48:00,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:00,616 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-12-13 17:48:00,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:48:00,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605452670] [2022-12-13 17:48:00,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605452670] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:48:00,617 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:48:00,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 17:48:00,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435157300] [2022-12-13 17:48:00,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:48:00,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 17:48:00,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:48:00,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 17:48:00,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:48:00,618 INFO L87 Difference]: Start difference. First operand 1659 states and 2157 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-13 17:48:01,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:48:01,916 INFO L93 Difference]: Finished difference Result 1659 states and 2157 transitions. [2022-12-13 17:48:01,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 17:48:01,917 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 88 [2022-12-13 17:48:01,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:48:01,924 INFO L225 Difference]: With dead ends: 1659 [2022-12-13 17:48:01,924 INFO L226 Difference]: Without dead ends: 1657 [2022-12-13 17:48:01,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-12-13 17:48:01,925 INFO L413 NwaCegarLoop]: 609 mSDtfsCounter, 1633 mSDsluCounter, 1072 mSDsCounter, 0 mSdLazyCounter, 1633 mSolverCounterSat, 876 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1770 SdHoareTripleChecker+Valid, 1681 SdHoareTripleChecker+Invalid, 2509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 876 IncrementalHoareTripleChecker+Valid, 1633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-13 17:48:01,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1770 Valid, 1681 Invalid, 2509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [876 Valid, 1633 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-13 17:48:01,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1657 states. [2022-12-13 17:48:02,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1657 to 1657. [2022-12-13 17:48:02,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1657 states, 1069 states have (on average 1.1880261927034612) internal successors, (1270), 1120 states have internal predecessors, (1270), 443 states have call successors, (443), 124 states have call predecessors, (443), 121 states have return successors, (442), 434 states have call predecessors, (442), 441 states have call successors, (442) [2022-12-13 17:48:02,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1657 states to 1657 states and 2155 transitions. [2022-12-13 17:48:02,051 INFO L78 Accepts]: Start accepts. Automaton has 1657 states and 2155 transitions. Word has length 88 [2022-12-13 17:48:02,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:48:02,052 INFO L495 AbstractCegarLoop]: Abstraction has 1657 states and 2155 transitions. [2022-12-13 17:48:02,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-13 17:48:02,052 INFO L276 IsEmpty]: Start isEmpty. Operand 1657 states and 2155 transitions. [2022-12-13 17:48:02,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-12-13 17:48:02,054 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:48:02,054 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:48:02,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 17:48:02,054 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-13 17:48:02,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:48:02,055 INFO L85 PathProgramCache]: Analyzing trace with hash -1770861635, now seen corresponding path program 1 times [2022-12-13 17:48:02,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:48:02,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717123834] [2022-12-13 17:48:02,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:48:02,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:48:02,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:02,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 17:48:02,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:02,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 17:48:02,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:02,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 17:48:02,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:02,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-12-13 17:48:02,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:02,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:02,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:02,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 17:48:02,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:02,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 17:48:02,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:02,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-12-13 17:48:02,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:02,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:02,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:02,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 17:48:02,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:02,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 17:48:02,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:02,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-12-13 17:48:02,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:02,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:02,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:02,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 17:48:02,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:02,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 17:48:02,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:02,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-12-13 17:48:02,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:02,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-12-13 17:48:02,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:02,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 17:48:02,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:02,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-12-13 17:48:02,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:02,533 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-12-13 17:48:02,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:48:02,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717123834] [2022-12-13 17:48:02,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717123834] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:48:02,533 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:48:02,534 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 17:48:02,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112882044] [2022-12-13 17:48:02,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:48:02,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 17:48:02,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:48:02,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 17:48:02,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 17:48:02,536 INFO L87 Difference]: Start difference. First operand 1657 states and 2155 transitions. Second operand has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-13 17:48:04,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:48:04,832 INFO L93 Difference]: Finished difference Result 3407 states and 4462 transitions. [2022-12-13 17:48:04,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 17:48:04,832 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) Word has length 116 [2022-12-13 17:48:04,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:48:04,838 INFO L225 Difference]: With dead ends: 3407 [2022-12-13 17:48:04,838 INFO L226 Difference]: Without dead ends: 1771 [2022-12-13 17:48:04,841 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2022-12-13 17:48:04,842 INFO L413 NwaCegarLoop]: 609 mSDtfsCounter, 2015 mSDsluCounter, 2219 mSDsCounter, 0 mSdLazyCounter, 3645 mSolverCounterSat, 1305 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2155 SdHoareTripleChecker+Valid, 2828 SdHoareTripleChecker+Invalid, 4950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1305 IncrementalHoareTripleChecker+Valid, 3645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-12-13 17:48:04,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2155 Valid, 2828 Invalid, 4950 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1305 Valid, 3645 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-12-13 17:48:04,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1771 states. [2022-12-13 17:48:04,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1771 to 1675. [2022-12-13 17:48:04,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1675 states, 1081 states have (on average 1.1840888066604995) internal successors, (1280), 1132 states have internal predecessors, (1280), 443 states have call successors, (443), 130 states have call predecessors, (443), 127 states have return successors, (442), 434 states have call predecessors, (442), 441 states have call successors, (442) [2022-12-13 17:48:04,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1675 states to 1675 states and 2165 transitions. [2022-12-13 17:48:04,915 INFO L78 Accepts]: Start accepts. Automaton has 1675 states and 2165 transitions. Word has length 116 [2022-12-13 17:48:04,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:48:04,916 INFO L495 AbstractCegarLoop]: Abstraction has 1675 states and 2165 transitions. [2022-12-13 17:48:04,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-13 17:48:04,916 INFO L276 IsEmpty]: Start isEmpty. Operand 1675 states and 2165 transitions. [2022-12-13 17:48:04,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-12-13 17:48:04,917 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:48:04,917 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:48:04,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 17:48:04,917 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-13 17:48:04,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:48:04,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1770802053, now seen corresponding path program 1 times [2022-12-13 17:48:04,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:48:04,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210667042] [2022-12-13 17:48:04,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:48:04,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:48:04,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:05,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 17:48:05,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:05,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 17:48:05,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:05,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 17:48:05,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:05,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-12-13 17:48:05,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:05,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:05,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:05,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 17:48:05,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:05,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 17:48:05,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:05,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-12-13 17:48:05,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:05,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:05,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:05,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 17:48:05,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:05,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 17:48:05,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:05,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-12-13 17:48:05,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:05,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:05,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:05,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 17:48:05,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:05,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 17:48:05,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:05,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-12-13 17:48:05,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:05,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-12-13 17:48:05,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:05,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 17:48:05,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:05,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-12-13 17:48:05,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:05,235 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-12-13 17:48:05,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:48:05,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210667042] [2022-12-13 17:48:05,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210667042] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:48:05,235 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:48:05,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 17:48:05,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516963754] [2022-12-13 17:48:05,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:48:05,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 17:48:05,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:48:05,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 17:48:05,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 17:48:05,237 INFO L87 Difference]: Start difference. First operand 1675 states and 2165 transitions. Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2022-12-13 17:48:07,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:48:07,102 INFO L93 Difference]: Finished difference Result 1771 states and 2318 transitions. [2022-12-13 17:48:07,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 17:48:07,102 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 116 [2022-12-13 17:48:07,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:48:07,107 INFO L225 Difference]: With dead ends: 1771 [2022-12-13 17:48:07,107 INFO L226 Difference]: Without dead ends: 1769 [2022-12-13 17:48:07,107 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2022-12-13 17:48:07,108 INFO L413 NwaCegarLoop]: 609 mSDtfsCounter, 1213 mSDsluCounter, 1828 mSDsCounter, 0 mSdLazyCounter, 2707 mSolverCounterSat, 1076 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1213 SdHoareTripleChecker+Valid, 2437 SdHoareTripleChecker+Invalid, 3783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1076 IncrementalHoareTripleChecker+Valid, 2707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-12-13 17:48:07,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1213 Valid, 2437 Invalid, 3783 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1076 Valid, 2707 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-12-13 17:48:07,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1769 states. [2022-12-13 17:48:07,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1769 to 1673. [2022-12-13 17:48:07,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1673 states, 1080 states have (on average 1.1824074074074074) internal successors, (1277), 1130 states have internal predecessors, (1277), 443 states have call successors, (443), 130 states have call predecessors, (443), 127 states have return successors, (442), 434 states have call predecessors, (442), 441 states have call successors, (442) [2022-12-13 17:48:07,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1673 states to 1673 states and 2162 transitions. [2022-12-13 17:48:07,184 INFO L78 Accepts]: Start accepts. Automaton has 1673 states and 2162 transitions. Word has length 116 [2022-12-13 17:48:07,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:48:07,184 INFO L495 AbstractCegarLoop]: Abstraction has 1673 states and 2162 transitions. [2022-12-13 17:48:07,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2022-12-13 17:48:07,185 INFO L276 IsEmpty]: Start isEmpty. Operand 1673 states and 2162 transitions. [2022-12-13 17:48:07,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-12-13 17:48:07,186 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:48:07,186 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:48:07,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 17:48:07,187 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-13 17:48:07,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:48:07,187 INFO L85 PathProgramCache]: Analyzing trace with hash -338254798, now seen corresponding path program 1 times [2022-12-13 17:48:07,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:48:07,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772232588] [2022-12-13 17:48:07,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:48:07,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:48:07,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:07,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 17:48:07,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:07,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 17:48:07,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:07,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 17:48:07,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:07,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 17:48:07,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:07,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 17:48:07,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:07,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-12-13 17:48:07,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:07,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:07,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:07,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 17:48:07,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:07,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 17:48:07,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:07,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-12-13 17:48:07,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:07,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 17:48:07,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:07,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 17:48:07,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:07,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-12-13 17:48:07,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:07,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 17:48:07,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:07,409 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-12-13 17:48:07,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:48:07,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772232588] [2022-12-13 17:48:07,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772232588] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:48:07,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:48:07,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 17:48:07,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271597628] [2022-12-13 17:48:07,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:48:07,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 17:48:07,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:48:07,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 17:48:07,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:48:07,411 INFO L87 Difference]: Start difference. First operand 1673 states and 2162 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-13 17:48:09,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:48:09,033 INFO L93 Difference]: Finished difference Result 1673 states and 2162 transitions. [2022-12-13 17:48:09,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 17:48:09,033 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 94 [2022-12-13 17:48:09,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:48:09,040 INFO L225 Difference]: With dead ends: 1673 [2022-12-13 17:48:09,040 INFO L226 Difference]: Without dead ends: 1671 [2022-12-13 17:48:09,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-12-13 17:48:09,041 INFO L413 NwaCegarLoop]: 609 mSDtfsCounter, 1618 mSDsluCounter, 1072 mSDsCounter, 0 mSdLazyCounter, 1623 mSolverCounterSat, 876 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1754 SdHoareTripleChecker+Valid, 1681 SdHoareTripleChecker+Invalid, 2499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 876 IncrementalHoareTripleChecker+Valid, 1623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-13 17:48:09,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1754 Valid, 1681 Invalid, 2499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [876 Valid, 1623 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-13 17:48:09,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1671 states. [2022-12-13 17:48:09,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1671 to 1671. [2022-12-13 17:48:09,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1671 states, 1079 states have (on average 1.1816496756255792) internal successors, (1275), 1128 states have internal predecessors, (1275), 443 states have call successors, (443), 130 states have call predecessors, (443), 127 states have return successors, (442), 434 states have call predecessors, (442), 441 states have call successors, (442) [2022-12-13 17:48:09,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1671 states to 1671 states and 2160 transitions. [2022-12-13 17:48:09,155 INFO L78 Accepts]: Start accepts. Automaton has 1671 states and 2160 transitions. Word has length 94 [2022-12-13 17:48:09,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:48:09,156 INFO L495 AbstractCegarLoop]: Abstraction has 1671 states and 2160 transitions. [2022-12-13 17:48:09,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-13 17:48:09,156 INFO L276 IsEmpty]: Start isEmpty. Operand 1671 states and 2160 transitions. [2022-12-13 17:48:09,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-12-13 17:48:09,157 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:48:09,157 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:48:09,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 17:48:09,158 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-13 17:48:09,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:48:09,158 INFO L85 PathProgramCache]: Analyzing trace with hash 469953921, now seen corresponding path program 1 times [2022-12-13 17:48:09,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:48:09,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869540651] [2022-12-13 17:48:09,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:48:09,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:48:09,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:09,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 17:48:09,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:09,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 17:48:09,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:09,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 17:48:09,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:09,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-12-13 17:48:09,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:09,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:09,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:09,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 17:48:09,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:09,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 17:48:09,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:09,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-12-13 17:48:09,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:09,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:09,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:09,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 17:48:09,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:09,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 17:48:09,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:09,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-12-13 17:48:09,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:09,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:09,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:09,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 17:48:09,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:09,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 17:48:09,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:09,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-12-13 17:48:09,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:09,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-12-13 17:48:09,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:09,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 17:48:09,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:09,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-12-13 17:48:09,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:09,442 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-12-13 17:48:09,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:48:09,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869540651] [2022-12-13 17:48:09,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869540651] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:48:09,442 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:48:09,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 17:48:09,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574990589] [2022-12-13 17:48:09,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:48:09,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 17:48:09,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:48:09,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 17:48:09,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:48:09,444 INFO L87 Difference]: Start difference. First operand 1671 states and 2160 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-13 17:48:11,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:48:11,170 INFO L93 Difference]: Finished difference Result 3411 states and 4453 transitions. [2022-12-13 17:48:11,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 17:48:11,170 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 120 [2022-12-13 17:48:11,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:48:11,178 INFO L225 Difference]: With dead ends: 3411 [2022-12-13 17:48:11,178 INFO L226 Difference]: Without dead ends: 1761 [2022-12-13 17:48:11,180 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-12-13 17:48:11,181 INFO L413 NwaCegarLoop]: 609 mSDtfsCounter, 2025 mSDsluCounter, 908 mSDsCounter, 0 mSdLazyCounter, 1219 mSolverCounterSat, 1303 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2175 SdHoareTripleChecker+Valid, 1517 SdHoareTripleChecker+Invalid, 2522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1303 IncrementalHoareTripleChecker+Valid, 1219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-13 17:48:11,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2175 Valid, 1517 Invalid, 2522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1303 Valid, 1219 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-13 17:48:11,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1761 states. [2022-12-13 17:48:11,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1761 to 1665. [2022-12-13 17:48:11,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1665 states, 1074 states have (on average 1.1787709497206704) internal successors, (1266), 1122 states have internal predecessors, (1266), 443 states have call successors, (443), 130 states have call predecessors, (443), 127 states have return successors, (442), 434 states have call predecessors, (442), 441 states have call successors, (442) [2022-12-13 17:48:11,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1665 states to 1665 states and 2151 transitions. [2022-12-13 17:48:11,266 INFO L78 Accepts]: Start accepts. Automaton has 1665 states and 2151 transitions. Word has length 120 [2022-12-13 17:48:11,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:48:11,267 INFO L495 AbstractCegarLoop]: Abstraction has 1665 states and 2151 transitions. [2022-12-13 17:48:11,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-13 17:48:11,267 INFO L276 IsEmpty]: Start isEmpty. Operand 1665 states and 2151 transitions. [2022-12-13 17:48:11,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-12-13 17:48:11,268 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:48:11,268 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:48:11,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 17:48:11,268 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-13 17:48:11,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:48:11,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1596306114, now seen corresponding path program 1 times [2022-12-13 17:48:11,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:48:11,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053736204] [2022-12-13 17:48:11,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:48:11,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:48:11,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:11,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 17:48:11,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:11,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 17:48:11,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:11,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 17:48:11,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:11,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 17:48:11,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:11,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 17:48:11,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:11,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-12-13 17:48:11,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:11,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:11,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:11,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 17:48:11,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:11,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 17:48:11,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:11,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-12-13 17:48:11,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:11,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 17:48:11,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:11,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 17:48:11,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:11,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-12-13 17:48:11,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:11,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 17:48:11,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:11,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-12-13 17:48:11,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:11,483 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-12-13 17:48:11,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:48:11,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053736204] [2022-12-13 17:48:11,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053736204] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:48:11,483 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:48:11,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 17:48:11,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497218869] [2022-12-13 17:48:11,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:48:11,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 17:48:11,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:48:11,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 17:48:11,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:48:11,484 INFO L87 Difference]: Start difference. First operand 1665 states and 2151 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 17:48:12,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:48:12,926 INFO L93 Difference]: Finished difference Result 1665 states and 2151 transitions. [2022-12-13 17:48:12,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 17:48:12,927 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 100 [2022-12-13 17:48:12,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:48:12,932 INFO L225 Difference]: With dead ends: 1665 [2022-12-13 17:48:12,932 INFO L226 Difference]: Without dead ends: 1663 [2022-12-13 17:48:12,933 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-12-13 17:48:12,934 INFO L413 NwaCegarLoop]: 609 mSDtfsCounter, 1597 mSDsluCounter, 1072 mSDsCounter, 0 mSdLazyCounter, 1609 mSolverCounterSat, 876 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1732 SdHoareTripleChecker+Valid, 1681 SdHoareTripleChecker+Invalid, 2485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 876 IncrementalHoareTripleChecker+Valid, 1609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-13 17:48:12,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1732 Valid, 1681 Invalid, 2485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [876 Valid, 1609 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-13 17:48:12,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1663 states. [2022-12-13 17:48:13,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1663 to 1663. [2022-12-13 17:48:13,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1663 states, 1073 states have (on average 1.1780055917986954) internal successors, (1264), 1120 states have internal predecessors, (1264), 443 states have call successors, (443), 130 states have call predecessors, (443), 127 states have return successors, (442), 434 states have call predecessors, (442), 441 states have call successors, (442) [2022-12-13 17:48:13,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1663 states to 1663 states and 2149 transitions. [2022-12-13 17:48:13,059 INFO L78 Accepts]: Start accepts. Automaton has 1663 states and 2149 transitions. Word has length 100 [2022-12-13 17:48:13,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:48:13,059 INFO L495 AbstractCegarLoop]: Abstraction has 1663 states and 2149 transitions. [2022-12-13 17:48:13,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 17:48:13,060 INFO L276 IsEmpty]: Start isEmpty. Operand 1663 states and 2149 transitions. [2022-12-13 17:48:13,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-12-13 17:48:13,061 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:48:13,061 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:48:13,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 17:48:13,062 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-13 17:48:13,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:48:13,062 INFO L85 PathProgramCache]: Analyzing trace with hash -2015945362, now seen corresponding path program 1 times [2022-12-13 17:48:13,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:48:13,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964957439] [2022-12-13 17:48:13,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:48:13,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:48:13,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:13,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 17:48:13,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:13,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 17:48:13,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:13,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 17:48:13,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:13,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 17:48:13,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:13,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 17:48:13,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:13,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-12-13 17:48:13,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:13,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:13,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:13,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 17:48:13,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:13,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 17:48:13,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:13,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-12-13 17:48:13,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:13,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 17:48:13,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:13,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 17:48:13,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:13,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-12-13 17:48:13,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:13,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 17:48:13,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:13,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-12-13 17:48:13,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:13,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 17:48:13,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:13,270 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-12-13 17:48:13,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:48:13,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964957439] [2022-12-13 17:48:13,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964957439] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:48:13,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:48:13,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 17:48:13,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413806763] [2022-12-13 17:48:13,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:48:13,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 17:48:13,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:48:13,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 17:48:13,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:48:13,272 INFO L87 Difference]: Start difference. First operand 1663 states and 2149 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 17:48:14,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:48:14,844 INFO L93 Difference]: Finished difference Result 1663 states and 2149 transitions. [2022-12-13 17:48:14,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 17:48:14,844 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 106 [2022-12-13 17:48:14,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:48:14,850 INFO L225 Difference]: With dead ends: 1663 [2022-12-13 17:48:14,850 INFO L226 Difference]: Without dead ends: 1661 [2022-12-13 17:48:14,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-12-13 17:48:14,851 INFO L413 NwaCegarLoop]: 609 mSDtfsCounter, 1595 mSDsluCounter, 1072 mSDsCounter, 0 mSdLazyCounter, 1601 mSolverCounterSat, 876 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1729 SdHoareTripleChecker+Valid, 1681 SdHoareTripleChecker+Invalid, 2477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 876 IncrementalHoareTripleChecker+Valid, 1601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-13 17:48:14,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1729 Valid, 1681 Invalid, 2477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [876 Valid, 1601 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-13 17:48:14,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1661 states. [2022-12-13 17:48:14,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1661 to 1661. [2022-12-13 17:48:14,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1661 states, 1072 states have (on average 1.1772388059701493) internal successors, (1262), 1118 states have internal predecessors, (1262), 443 states have call successors, (443), 130 states have call predecessors, (443), 127 states have return successors, (442), 434 states have call predecessors, (442), 441 states have call successors, (442) [2022-12-13 17:48:14,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1661 states to 1661 states and 2147 transitions. [2022-12-13 17:48:14,950 INFO L78 Accepts]: Start accepts. Automaton has 1661 states and 2147 transitions. Word has length 106 [2022-12-13 17:48:14,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:48:14,951 INFO L495 AbstractCegarLoop]: Abstraction has 1661 states and 2147 transitions. [2022-12-13 17:48:14,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 17:48:14,951 INFO L276 IsEmpty]: Start isEmpty. Operand 1661 states and 2147 transitions. [2022-12-13 17:48:14,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-12-13 17:48:14,953 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:48:14,953 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:48:14,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 17:48:14,953 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-13 17:48:14,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:48:14,954 INFO L85 PathProgramCache]: Analyzing trace with hash -293105775, now seen corresponding path program 1 times [2022-12-13 17:48:14,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:48:14,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511053960] [2022-12-13 17:48:14,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:48:14,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:48:14,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:15,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 17:48:15,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:15,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 17:48:15,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:15,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 17:48:15,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:15,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 17:48:15,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:15,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 17:48:15,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:15,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-12-13 17:48:15,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:15,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:15,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:15,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 17:48:15,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:15,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 17:48:15,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:15,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-12-13 17:48:15,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:15,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 17:48:15,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:15,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 17:48:15,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:15,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-12-13 17:48:15,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:15,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 17:48:15,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:15,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-12-13 17:48:15,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:15,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 17:48:15,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:15,214 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-12-13 17:48:15,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:48:15,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511053960] [2022-12-13 17:48:15,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511053960] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:48:15,215 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:48:15,215 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 17:48:15,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209519269] [2022-12-13 17:48:15,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:48:15,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 17:48:15,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:48:15,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 17:48:15,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:48:15,217 INFO L87 Difference]: Start difference. First operand 1661 states and 2147 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 17:48:16,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:48:16,747 INFO L93 Difference]: Finished difference Result 1661 states and 2147 transitions. [2022-12-13 17:48:16,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 17:48:16,748 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 108 [2022-12-13 17:48:16,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:48:16,753 INFO L225 Difference]: With dead ends: 1661 [2022-12-13 17:48:16,753 INFO L226 Difference]: Without dead ends: 1659 [2022-12-13 17:48:16,753 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-12-13 17:48:16,754 INFO L413 NwaCegarLoop]: 609 mSDtfsCounter, 1583 mSDsluCounter, 1072 mSDsCounter, 0 mSdLazyCounter, 1601 mSolverCounterSat, 876 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1717 SdHoareTripleChecker+Valid, 1681 SdHoareTripleChecker+Invalid, 2477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 876 IncrementalHoareTripleChecker+Valid, 1601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-13 17:48:16,754 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1717 Valid, 1681 Invalid, 2477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [876 Valid, 1601 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-13 17:48:16,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1659 states. [2022-12-13 17:48:16,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1659 to 1659. [2022-12-13 17:48:16,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1659 states, 1071 states have (on average 1.1764705882352942) internal successors, (1260), 1116 states have internal predecessors, (1260), 443 states have call successors, (443), 130 states have call predecessors, (443), 127 states have return successors, (442), 434 states have call predecessors, (442), 441 states have call successors, (442) [2022-12-13 17:48:16,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1659 states to 1659 states and 2145 transitions. [2022-12-13 17:48:16,892 INFO L78 Accepts]: Start accepts. Automaton has 1659 states and 2145 transitions. Word has length 108 [2022-12-13 17:48:16,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:48:16,892 INFO L495 AbstractCegarLoop]: Abstraction has 1659 states and 2145 transitions. [2022-12-13 17:48:16,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 17:48:16,892 INFO L276 IsEmpty]: Start isEmpty. Operand 1659 states and 2145 transitions. [2022-12-13 17:48:16,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-12-13 17:48:16,894 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:48:16,894 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:48:16,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 17:48:16,894 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-13 17:48:16,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:48:16,895 INFO L85 PathProgramCache]: Analyzing trace with hash 202025690, now seen corresponding path program 1 times [2022-12-13 17:48:16,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:48:16,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055601282] [2022-12-13 17:48:16,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:48:16,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:48:16,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:17,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 17:48:17,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:17,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 17:48:17,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:17,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 17:48:17,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:17,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 17:48:17,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:17,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 17:48:17,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:17,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-12-13 17:48:17,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:17,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:17,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:17,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 17:48:17,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:17,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 17:48:17,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:17,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-12-13 17:48:17,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:17,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 17:48:17,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:17,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 17:48:17,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:17,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-12-13 17:48:17,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:17,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 17:48:17,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:17,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-12-13 17:48:17,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:17,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 17:48:17,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:17,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-12-13 17:48:17,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:17,165 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-12-13 17:48:17,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:48:17,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055601282] [2022-12-13 17:48:17,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055601282] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:48:17,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:48:17,166 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 17:48:17,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812808119] [2022-12-13 17:48:17,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:48:17,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 17:48:17,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:48:17,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 17:48:17,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:48:17,168 INFO L87 Difference]: Start difference. First operand 1659 states and 2145 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-13 17:48:18,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:48:18,648 INFO L93 Difference]: Finished difference Result 1659 states and 2145 transitions. [2022-12-13 17:48:18,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 17:48:18,648 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 114 [2022-12-13 17:48:18,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:48:18,652 INFO L225 Difference]: With dead ends: 1659 [2022-12-13 17:48:18,653 INFO L226 Difference]: Without dead ends: 1657 [2022-12-13 17:48:18,653 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-12-13 17:48:18,654 INFO L413 NwaCegarLoop]: 609 mSDtfsCounter, 1579 mSDsluCounter, 1072 mSDsCounter, 0 mSdLazyCounter, 1597 mSolverCounterSat, 876 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1712 SdHoareTripleChecker+Valid, 1681 SdHoareTripleChecker+Invalid, 2473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 876 IncrementalHoareTripleChecker+Valid, 1597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-13 17:48:18,654 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1712 Valid, 1681 Invalid, 2473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [876 Valid, 1597 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-13 17:48:18,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1657 states. [2022-12-13 17:48:18,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1657 to 1657. [2022-12-13 17:48:18,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1657 states, 1070 states have (on average 1.1757009345794394) internal successors, (1258), 1114 states have internal predecessors, (1258), 443 states have call successors, (443), 130 states have call predecessors, (443), 127 states have return successors, (442), 434 states have call predecessors, (442), 441 states have call successors, (442) [2022-12-13 17:48:18,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1657 states to 1657 states and 2143 transitions. [2022-12-13 17:48:18,759 INFO L78 Accepts]: Start accepts. Automaton has 1657 states and 2143 transitions. Word has length 114 [2022-12-13 17:48:18,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:48:18,760 INFO L495 AbstractCegarLoop]: Abstraction has 1657 states and 2143 transitions. [2022-12-13 17:48:18,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-13 17:48:18,760 INFO L276 IsEmpty]: Start isEmpty. Operand 1657 states and 2143 transitions. [2022-12-13 17:48:18,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-12-13 17:48:18,760 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:48:18,760 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:48:18,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 17:48:18,761 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-13 17:48:18,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:48:18,761 INFO L85 PathProgramCache]: Analyzing trace with hash -1867984116, now seen corresponding path program 1 times [2022-12-13 17:48:18,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:48:18,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270113755] [2022-12-13 17:48:18,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:48:18,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:48:18,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:18,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 17:48:18,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:18,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 17:48:18,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:18,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 17:48:18,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:18,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 17:48:18,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:18,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 17:48:18,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:18,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-12-13 17:48:18,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:18,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:18,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:18,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 17:48:18,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:18,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 17:48:18,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:18,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-12-13 17:48:18,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:18,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 17:48:18,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:18,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 17:48:18,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:18,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-12-13 17:48:18,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:18,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 17:48:18,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:18,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-12-13 17:48:18,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:19,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 17:48:19,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:19,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-12-13 17:48:19,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:19,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-12-13 17:48:19,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:19,022 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-12-13 17:48:19,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:48:19,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270113755] [2022-12-13 17:48:19,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270113755] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:48:19,022 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:48:19,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 17:48:19,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312038877] [2022-12-13 17:48:19,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:48:19,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 17:48:19,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:48:19,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 17:48:19,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:48:19,024 INFO L87 Difference]: Start difference. First operand 1657 states and 2143 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-13 17:48:20,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:48:20,384 INFO L93 Difference]: Finished difference Result 1657 states and 2143 transitions. [2022-12-13 17:48:20,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 17:48:20,385 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 120 [2022-12-13 17:48:20,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:48:20,389 INFO L225 Difference]: With dead ends: 1657 [2022-12-13 17:48:20,389 INFO L226 Difference]: Without dead ends: 1655 [2022-12-13 17:48:20,389 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-12-13 17:48:20,389 INFO L413 NwaCegarLoop]: 609 mSDtfsCounter, 1573 mSDsluCounter, 1072 mSDsCounter, 0 mSdLazyCounter, 1593 mSolverCounterSat, 876 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1705 SdHoareTripleChecker+Valid, 1681 SdHoareTripleChecker+Invalid, 2469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 876 IncrementalHoareTripleChecker+Valid, 1593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-13 17:48:20,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1705 Valid, 1681 Invalid, 2469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [876 Valid, 1593 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-13 17:48:20,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1655 states. [2022-12-13 17:48:20,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1655 to 1655. [2022-12-13 17:48:20,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1655 states, 1069 states have (on average 1.174929840972872) internal successors, (1256), 1112 states have internal predecessors, (1256), 443 states have call successors, (443), 130 states have call predecessors, (443), 127 states have return successors, (442), 434 states have call predecessors, (442), 441 states have call successors, (442) [2022-12-13 17:48:20,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1655 states to 1655 states and 2141 transitions. [2022-12-13 17:48:20,499 INFO L78 Accepts]: Start accepts. Automaton has 1655 states and 2141 transitions. Word has length 120 [2022-12-13 17:48:20,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:48:20,499 INFO L495 AbstractCegarLoop]: Abstraction has 1655 states and 2141 transitions. [2022-12-13 17:48:20,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-13 17:48:20,500 INFO L276 IsEmpty]: Start isEmpty. Operand 1655 states and 2141 transitions. [2022-12-13 17:48:20,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-12-13 17:48:20,500 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:48:20,500 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:48:20,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-13 17:48:20,501 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-13 17:48:20,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:48:20,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1468254686, now seen corresponding path program 1 times [2022-12-13 17:48:20,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:48:20,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823984344] [2022-12-13 17:48:20,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:48:20,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:48:20,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:20,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 17:48:20,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:20,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 17:48:20,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:20,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 17:48:20,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:20,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 17:48:20,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:20,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 17:48:20,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:20,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-12-13 17:48:20,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:20,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:20,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:20,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 17:48:20,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:20,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 17:48:20,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:20,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-12-13 17:48:20,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:20,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 17:48:20,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:20,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 17:48:20,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:20,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-12-13 17:48:20,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:20,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 17:48:20,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:20,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-12-13 17:48:20,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:20,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 17:48:20,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:20,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-12-13 17:48:20,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:20,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-12-13 17:48:20,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:20,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-12-13 17:48:20,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:20,680 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-12-13 17:48:20,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:48:20,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823984344] [2022-12-13 17:48:20,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823984344] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:48:20,680 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:48:20,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 17:48:20,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457445197] [2022-12-13 17:48:20,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:48:20,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 17:48:20,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:48:20,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 17:48:20,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:48:20,681 INFO L87 Difference]: Start difference. First operand 1655 states and 2141 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-13 17:48:21,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:48:21,852 INFO L93 Difference]: Finished difference Result 1655 states and 2141 transitions. [2022-12-13 17:48:21,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 17:48:21,852 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 126 [2022-12-13 17:48:21,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:48:21,856 INFO L225 Difference]: With dead ends: 1655 [2022-12-13 17:48:21,856 INFO L226 Difference]: Without dead ends: 1653 [2022-12-13 17:48:21,857 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-12-13 17:48:21,857 INFO L413 NwaCegarLoop]: 609 mSDtfsCounter, 1567 mSDsluCounter, 1072 mSDsCounter, 0 mSdLazyCounter, 1589 mSolverCounterSat, 876 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1698 SdHoareTripleChecker+Valid, 1681 SdHoareTripleChecker+Invalid, 2465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 876 IncrementalHoareTripleChecker+Valid, 1589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-13 17:48:21,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1698 Valid, 1681 Invalid, 2465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [876 Valid, 1589 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-13 17:48:21,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1653 states. [2022-12-13 17:48:21,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1653 to 1653. [2022-12-13 17:48:21,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1653 states, 1068 states have (on average 1.1741573033707866) internal successors, (1254), 1110 states have internal predecessors, (1254), 443 states have call successors, (443), 130 states have call predecessors, (443), 127 states have return successors, (442), 434 states have call predecessors, (442), 441 states have call successors, (442) [2022-12-13 17:48:21,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1653 states to 1653 states and 2139 transitions. [2022-12-13 17:48:21,972 INFO L78 Accepts]: Start accepts. Automaton has 1653 states and 2139 transitions. Word has length 126 [2022-12-13 17:48:21,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:48:21,972 INFO L495 AbstractCegarLoop]: Abstraction has 1653 states and 2139 transitions. [2022-12-13 17:48:21,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-13 17:48:21,972 INFO L276 IsEmpty]: Start isEmpty. Operand 1653 states and 2139 transitions. [2022-12-13 17:48:21,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-12-13 17:48:21,973 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:48:21,973 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:48:21,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-13 17:48:21,973 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-13 17:48:21,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:48:21,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1982644496, now seen corresponding path program 1 times [2022-12-13 17:48:21,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:48:21,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857093414] [2022-12-13 17:48:21,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:48:21,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:48:22,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:22,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 17:48:22,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:22,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 17:48:22,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:22,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 17:48:22,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:22,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-12-13 17:48:22,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:22,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:22,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:22,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 17:48:22,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:22,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 17:48:22,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:22,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-12-13 17:48:22,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:22,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:22,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:22,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 17:48:22,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:22,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 17:48:22,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:22,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-12-13 17:48:22,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:22,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:22,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:22,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 17:48:22,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:22,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 17:48:22,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:22,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-12-13 17:48:22,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:22,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-12-13 17:48:22,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:22,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 17:48:22,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:22,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-12-13 17:48:22,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:22,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:22,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:22,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:22,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:22,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 17:48:22,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:22,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:22,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:22,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-12-13 17:48:22,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:22,223 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2022-12-13 17:48:22,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:48:22,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857093414] [2022-12-13 17:48:22,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857093414] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:48:22,223 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:48:22,223 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 17:48:22,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135982526] [2022-12-13 17:48:22,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:48:22,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 17:48:22,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:48:22,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 17:48:22,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-13 17:48:22,225 INFO L87 Difference]: Start difference. First operand 1653 states and 2139 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-13 17:48:23,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:48:23,985 INFO L93 Difference]: Finished difference Result 3381 states and 4401 transitions. [2022-12-13 17:48:23,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 17:48:23,985 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 149 [2022-12-13 17:48:23,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:48:23,997 INFO L225 Difference]: With dead ends: 3381 [2022-12-13 17:48:23,997 INFO L226 Difference]: Without dead ends: 1749 [2022-12-13 17:48:24,002 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-12-13 17:48:24,003 INFO L413 NwaCegarLoop]: 454 mSDtfsCounter, 2312 mSDsluCounter, 892 mSDsCounter, 0 mSdLazyCounter, 1363 mSolverCounterSat, 1626 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2466 SdHoareTripleChecker+Valid, 1346 SdHoareTripleChecker+Invalid, 2989 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1626 IncrementalHoareTripleChecker+Valid, 1363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-13 17:48:24,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2466 Valid, 1346 Invalid, 2989 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1626 Valid, 1363 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-13 17:48:24,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1749 states. [2022-12-13 17:48:24,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1749 to 1647. [2022-12-13 17:48:24,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1647 states, 1063 states have (on average 1.1712135465663218) internal successors, (1245), 1104 states have internal predecessors, (1245), 443 states have call successors, (443), 130 states have call predecessors, (443), 127 states have return successors, (442), 434 states have call predecessors, (442), 441 states have call successors, (442) [2022-12-13 17:48:24,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1647 states to 1647 states and 2130 transitions. [2022-12-13 17:48:24,180 INFO L78 Accepts]: Start accepts. Automaton has 1647 states and 2130 transitions. Word has length 149 [2022-12-13 17:48:24,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:48:24,180 INFO L495 AbstractCegarLoop]: Abstraction has 1647 states and 2130 transitions. [2022-12-13 17:48:24,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-13 17:48:24,181 INFO L276 IsEmpty]: Start isEmpty. Operand 1647 states and 2130 transitions. [2022-12-13 17:48:24,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-12-13 17:48:24,181 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:48:24,182 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:48:24,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-13 17:48:24,182 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-13 17:48:24,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:48:24,182 INFO L85 PathProgramCache]: Analyzing trace with hash -728114450, now seen corresponding path program 1 times [2022-12-13 17:48:24,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:48:24,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48340398] [2022-12-13 17:48:24,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:48:24,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:48:24,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:24,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 17:48:24,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:24,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 17:48:24,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:24,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 17:48:24,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:24,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 17:48:24,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:24,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 17:48:24,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:24,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-12-13 17:48:24,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:24,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:24,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:24,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 17:48:24,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:24,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 17:48:24,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:24,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-12-13 17:48:24,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:24,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 17:48:24,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:24,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 17:48:24,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:24,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-12-13 17:48:24,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:24,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 17:48:24,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:24,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-12-13 17:48:24,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:24,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 17:48:24,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:24,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-12-13 17:48:24,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:24,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-12-13 17:48:24,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:24,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-12-13 17:48:24,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:24,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-12-13 17:48:24,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:24,369 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-12-13 17:48:24,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:48:24,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48340398] [2022-12-13 17:48:24,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48340398] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:48:24,370 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:48:24,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 17:48:24,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664535840] [2022-12-13 17:48:24,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:48:24,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 17:48:24,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:48:24,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 17:48:24,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:48:24,371 INFO L87 Difference]: Start difference. First operand 1647 states and 2130 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-12-13 17:48:25,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:48:25,747 INFO L93 Difference]: Finished difference Result 1647 states and 2130 transitions. [2022-12-13 17:48:25,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 17:48:25,747 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 132 [2022-12-13 17:48:25,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:48:25,751 INFO L225 Difference]: With dead ends: 1647 [2022-12-13 17:48:25,751 INFO L226 Difference]: Without dead ends: 1645 [2022-12-13 17:48:25,752 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-12-13 17:48:25,752 INFO L413 NwaCegarLoop]: 604 mSDtfsCounter, 1556 mSDsluCounter, 1058 mSDsCounter, 0 mSdLazyCounter, 1584 mSolverCounterSat, 876 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1686 SdHoareTripleChecker+Valid, 1662 SdHoareTripleChecker+Invalid, 2460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 876 IncrementalHoareTripleChecker+Valid, 1584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-13 17:48:25,752 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1686 Valid, 1662 Invalid, 2460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [876 Valid, 1584 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-13 17:48:25,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1645 states. [2022-12-13 17:48:25,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1645 to 1645. [2022-12-13 17:48:25,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1645 states, 1062 states have (on average 1.170433145009416) internal successors, (1243), 1102 states have internal predecessors, (1243), 443 states have call successors, (443), 130 states have call predecessors, (443), 127 states have return successors, (442), 434 states have call predecessors, (442), 441 states have call successors, (442) [2022-12-13 17:48:25,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1645 states to 1645 states and 2128 transitions. [2022-12-13 17:48:25,880 INFO L78 Accepts]: Start accepts. Automaton has 1645 states and 2128 transitions. Word has length 132 [2022-12-13 17:48:25,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:48:25,880 INFO L495 AbstractCegarLoop]: Abstraction has 1645 states and 2128 transitions. [2022-12-13 17:48:25,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-12-13 17:48:25,881 INFO L276 IsEmpty]: Start isEmpty. Operand 1645 states and 2128 transitions. [2022-12-13 17:48:25,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-12-13 17:48:25,881 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:48:25,882 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:48:25,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-13 17:48:25,882 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-13 17:48:25,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:48:25,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1829579903, now seen corresponding path program 1 times [2022-12-13 17:48:25,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:48:25,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722842632] [2022-12-13 17:48:25,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:48:25,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:48:25,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:25,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 17:48:25,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:26,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 17:48:26,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:26,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 17:48:26,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:26,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-12-13 17:48:26,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:26,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:26,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:26,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 17:48:26,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:26,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 17:48:26,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:26,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-12-13 17:48:26,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:26,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:26,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:26,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 17:48:26,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:26,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 17:48:26,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:26,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-12-13 17:48:26,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:26,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:26,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:26,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 17:48:26,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:26,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 17:48:26,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:26,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-12-13 17:48:26,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:26,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-12-13 17:48:26,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:26,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 17:48:26,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:26,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-12-13 17:48:26,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:26,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:26,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:26,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:26,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:26,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 17:48:26,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:26,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:26,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:26,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-12-13 17:48:26,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:26,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-12-13 17:48:26,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:26,126 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2022-12-13 17:48:26,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:48:26,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722842632] [2022-12-13 17:48:26,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722842632] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 17:48:26,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2021793732] [2022-12-13 17:48:26,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:48:26,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:48:26,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:48:26,128 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:48:26,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 17:48:26,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:26,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 1801 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 17:48:26,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:48:26,631 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-12-13 17:48:26,631 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:48:26,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2021793732] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:48:26,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 17:48:26,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2022-12-13 17:48:26,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28414044] [2022-12-13 17:48:26,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:48:26,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 17:48:26,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:48:26,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 17:48:26,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-12-13 17:48:26,633 INFO L87 Difference]: Start difference. First operand 1645 states and 2128 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-13 17:48:26,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:48:26,793 INFO L93 Difference]: Finished difference Result 3263 states and 4218 transitions. [2022-12-13 17:48:26,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 17:48:26,794 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 155 [2022-12-13 17:48:26,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:48:26,800 INFO L225 Difference]: With dead ends: 3263 [2022-12-13 17:48:26,801 INFO L226 Difference]: Without dead ends: 1639 [2022-12-13 17:48:26,804 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-12-13 17:48:26,804 INFO L413 NwaCegarLoop]: 1164 mSDtfsCounter, 1109 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1109 SdHoareTripleChecker+Valid, 1164 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 17:48:26,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1109 Valid, 1164 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 17:48:26,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1639 states. [2022-12-13 17:48:26,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1639 to 1639. [2022-12-13 17:48:26,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1639 states, 1057 states have (on average 1.1674550614947965) internal successors, (1234), 1096 states have internal predecessors, (1234), 443 states have call successors, (443), 130 states have call predecessors, (443), 127 states have return successors, (442), 434 states have call predecessors, (442), 441 states have call successors, (442) [2022-12-13 17:48:26,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1639 states to 1639 states and 2119 transitions. [2022-12-13 17:48:26,945 INFO L78 Accepts]: Start accepts. Automaton has 1639 states and 2119 transitions. Word has length 155 [2022-12-13 17:48:26,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:48:26,945 INFO L495 AbstractCegarLoop]: Abstraction has 1639 states and 2119 transitions. [2022-12-13 17:48:26,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-13 17:48:26,946 INFO L276 IsEmpty]: Start isEmpty. Operand 1639 states and 2119 transitions. [2022-12-13 17:48:26,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-12-13 17:48:26,946 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:48:26,946 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:48:26,955 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 17:48:27,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-12-13 17:48:27,147 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-13 17:48:27,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:48:27,148 INFO L85 PathProgramCache]: Analyzing trace with hash 1582334756, now seen corresponding path program 1 times [2022-12-13 17:48:27,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:48:27,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58794571] [2022-12-13 17:48:27,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:48:27,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:48:27,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:27,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 17:48:27,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:27,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 17:48:27,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:27,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 17:48:27,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:27,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 17:48:27,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:27,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 17:48:27,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:27,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-12-13 17:48:27,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:27,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:27,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:27,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 17:48:27,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:27,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 17:48:27,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:27,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-12-13 17:48:27,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:27,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 17:48:27,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:27,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 17:48:27,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:27,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-12-13 17:48:27,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:27,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 17:48:27,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:27,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-12-13 17:48:27,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:27,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 17:48:27,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:27,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-12-13 17:48:27,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:27,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-12-13 17:48:27,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:27,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-12-13 17:48:27,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:27,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-12-13 17:48:27,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:27,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-12-13 17:48:27,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:27,328 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-12-13 17:48:27,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:48:27,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58794571] [2022-12-13 17:48:27,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58794571] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:48:27,328 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:48:27,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 17:48:27,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279926419] [2022-12-13 17:48:27,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:48:27,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 17:48:27,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:48:27,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 17:48:27,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:48:27,330 INFO L87 Difference]: Start difference. First operand 1639 states and 2119 transitions. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-13 17:48:28,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:48:28,709 INFO L93 Difference]: Finished difference Result 1639 states and 2119 transitions. [2022-12-13 17:48:28,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 17:48:28,709 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 138 [2022-12-13 17:48:28,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:48:28,714 INFO L225 Difference]: With dead ends: 1639 [2022-12-13 17:48:28,714 INFO L226 Difference]: Without dead ends: 1637 [2022-12-13 17:48:28,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-12-13 17:48:28,715 INFO L413 NwaCegarLoop]: 599 mSDtfsCounter, 1545 mSDsluCounter, 1044 mSDsCounter, 0 mSdLazyCounter, 1579 mSolverCounterSat, 876 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1674 SdHoareTripleChecker+Valid, 1643 SdHoareTripleChecker+Invalid, 2455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 876 IncrementalHoareTripleChecker+Valid, 1579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-13 17:48:28,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1674 Valid, 1643 Invalid, 2455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [876 Valid, 1579 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-13 17:48:28,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1637 states. [2022-12-13 17:48:28,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1637 to 1637. [2022-12-13 17:48:28,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1637 states, 1056 states have (on average 1.1666666666666667) internal successors, (1232), 1094 states have internal predecessors, (1232), 443 states have call successors, (443), 130 states have call predecessors, (443), 127 states have return successors, (442), 434 states have call predecessors, (442), 441 states have call successors, (442) [2022-12-13 17:48:28,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1637 states to 1637 states and 2117 transitions. [2022-12-13 17:48:28,859 INFO L78 Accepts]: Start accepts. Automaton has 1637 states and 2117 transitions. Word has length 138 [2022-12-13 17:48:28,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:48:28,859 INFO L495 AbstractCegarLoop]: Abstraction has 1637 states and 2117 transitions. [2022-12-13 17:48:28,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-13 17:48:28,859 INFO L276 IsEmpty]: Start isEmpty. Operand 1637 states and 2117 transitions. [2022-12-13 17:48:28,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-12-13 17:48:28,860 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:48:28,860 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:48:28,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-13 17:48:28,860 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-13 17:48:28,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:48:28,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1548139601, now seen corresponding path program 1 times [2022-12-13 17:48:28,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:48:28,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920779281] [2022-12-13 17:48:28,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:48:28,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:48:28,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:28,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 17:48:28,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:28,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 17:48:28,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:29,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 17:48:29,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:29,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 17:48:29,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:29,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 17:48:29,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:29,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-12-13 17:48:29,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:29,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:29,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:29,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 17:48:29,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:29,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 17:48:29,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:29,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-12-13 17:48:29,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:29,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 17:48:29,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:29,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 17:48:29,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:29,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-12-13 17:48:29,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:29,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 17:48:29,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:29,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-12-13 17:48:29,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:29,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 17:48:29,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:29,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-12-13 17:48:29,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:29,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-12-13 17:48:29,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:29,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-12-13 17:48:29,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:29,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-12-13 17:48:29,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:29,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-12-13 17:48:29,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:29,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-12-13 17:48:29,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:29,080 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-12-13 17:48:29,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:48:29,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920779281] [2022-12-13 17:48:29,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920779281] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:48:29,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:48:29,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 17:48:29,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773021059] [2022-12-13 17:48:29,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:48:29,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 17:48:29,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:48:29,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 17:48:29,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:48:29,082 INFO L87 Difference]: Start difference. First operand 1637 states and 2117 transitions. Second operand has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-12-13 17:48:30,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:48:30,881 INFO L93 Difference]: Finished difference Result 1637 states and 2117 transitions. [2022-12-13 17:48:30,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 17:48:30,882 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 144 [2022-12-13 17:48:30,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:48:30,886 INFO L225 Difference]: With dead ends: 1637 [2022-12-13 17:48:30,886 INFO L226 Difference]: Without dead ends: 1635 [2022-12-13 17:48:30,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-12-13 17:48:30,887 INFO L413 NwaCegarLoop]: 599 mSDtfsCounter, 1539 mSDsluCounter, 1044 mSDsCounter, 0 mSdLazyCounter, 1575 mSolverCounterSat, 876 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1667 SdHoareTripleChecker+Valid, 1643 SdHoareTripleChecker+Invalid, 2451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 876 IncrementalHoareTripleChecker+Valid, 1575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-13 17:48:30,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1667 Valid, 1643 Invalid, 2451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [876 Valid, 1575 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-13 17:48:30,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1635 states. [2022-12-13 17:48:31,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1635 to 1635. [2022-12-13 17:48:31,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1635 states, 1055 states have (on average 1.1658767772511849) internal successors, (1230), 1092 states have internal predecessors, (1230), 443 states have call successors, (443), 130 states have call predecessors, (443), 127 states have return successors, (442), 434 states have call predecessors, (442), 441 states have call successors, (442) [2022-12-13 17:48:31,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1635 states to 1635 states and 2115 transitions. [2022-12-13 17:48:31,042 INFO L78 Accepts]: Start accepts. Automaton has 1635 states and 2115 transitions. Word has length 144 [2022-12-13 17:48:31,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:48:31,042 INFO L495 AbstractCegarLoop]: Abstraction has 1635 states and 2115 transitions. [2022-12-13 17:48:31,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-12-13 17:48:31,042 INFO L276 IsEmpty]: Start isEmpty. Operand 1635 states and 2115 transitions. [2022-12-13 17:48:31,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-12-13 17:48:31,043 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:48:31,043 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:48:31,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-13 17:48:31,044 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-13 17:48:31,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:48:31,044 INFO L85 PathProgramCache]: Analyzing trace with hash -143996287, now seen corresponding path program 1 times [2022-12-13 17:48:31,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:48:31,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324700234] [2022-12-13 17:48:31,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:48:31,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:48:31,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:31,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 17:48:31,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:31,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 17:48:31,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:31,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 17:48:31,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:31,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 17:48:31,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:31,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 17:48:31,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:31,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-12-13 17:48:31,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:31,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:31,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:31,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 17:48:31,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:31,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 17:48:31,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:31,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-12-13 17:48:31,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:31,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 17:48:31,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:31,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 17:48:31,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:31,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-12-13 17:48:31,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:31,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 17:48:31,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:31,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-12-13 17:48:31,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:31,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 17:48:31,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:31,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-12-13 17:48:31,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:31,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-12-13 17:48:31,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:31,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-12-13 17:48:31,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:31,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-12-13 17:48:31,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:31,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-12-13 17:48:31,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:31,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-12-13 17:48:31,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:31,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-12-13 17:48:31,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:31,414 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-12-13 17:48:31,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:48:31,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324700234] [2022-12-13 17:48:31,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324700234] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:48:31,414 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:48:31,414 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 17:48:31,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506513082] [2022-12-13 17:48:31,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:48:31,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 17:48:31,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:48:31,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 17:48:31,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:48:31,416 INFO L87 Difference]: Start difference. First operand 1635 states and 2115 transitions. Second operand has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-12-13 17:48:32,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:48:32,972 INFO L93 Difference]: Finished difference Result 1635 states and 2115 transitions. [2022-12-13 17:48:32,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 17:48:32,972 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 150 [2022-12-13 17:48:32,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:48:32,975 INFO L225 Difference]: With dead ends: 1635 [2022-12-13 17:48:32,975 INFO L226 Difference]: Without dead ends: 1633 [2022-12-13 17:48:32,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-12-13 17:48:32,976 INFO L413 NwaCegarLoop]: 599 mSDtfsCounter, 1533 mSDsluCounter, 1044 mSDsCounter, 0 mSdLazyCounter, 1571 mSolverCounterSat, 876 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1660 SdHoareTripleChecker+Valid, 1643 SdHoareTripleChecker+Invalid, 2447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 876 IncrementalHoareTripleChecker+Valid, 1571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-13 17:48:32,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1660 Valid, 1643 Invalid, 2447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [876 Valid, 1571 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-13 17:48:32,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1633 states. [2022-12-13 17:48:33,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1633 to 1633. [2022-12-13 17:48:33,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1633 states, 1054 states have (on average 1.1650853889943074) internal successors, (1228), 1090 states have internal predecessors, (1228), 443 states have call successors, (443), 130 states have call predecessors, (443), 127 states have return successors, (442), 434 states have call predecessors, (442), 441 states have call successors, (442) [2022-12-13 17:48:33,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1633 states to 1633 states and 2113 transitions. [2022-12-13 17:48:33,138 INFO L78 Accepts]: Start accepts. Automaton has 1633 states and 2113 transitions. Word has length 150 [2022-12-13 17:48:33,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:48:33,138 INFO L495 AbstractCegarLoop]: Abstraction has 1633 states and 2113 transitions. [2022-12-13 17:48:33,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-12-13 17:48:33,138 INFO L276 IsEmpty]: Start isEmpty. Operand 1633 states and 2113 transitions. [2022-12-13 17:48:33,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-12-13 17:48:33,139 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:48:33,139 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:48:33,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-13 17:48:33,139 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-13 17:48:33,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:48:33,140 INFO L85 PathProgramCache]: Analyzing trace with hash -1326466481, now seen corresponding path program 1 times [2022-12-13 17:48:33,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:48:33,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439242146] [2022-12-13 17:48:33,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:48:33,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:48:33,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:33,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 17:48:33,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:33,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 17:48:33,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:33,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 17:48:33,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:33,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 17:48:33,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:33,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 17:48:33,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:33,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-12-13 17:48:33,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:33,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:33,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:33,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 17:48:33,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:33,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 17:48:33,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:33,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-12-13 17:48:33,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:33,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 17:48:33,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:33,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 17:48:33,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:33,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-12-13 17:48:33,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:33,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 17:48:33,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:33,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-12-13 17:48:33,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:33,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 17:48:33,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:33,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-12-13 17:48:33,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:33,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-12-13 17:48:33,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:33,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-12-13 17:48:33,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:33,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-12-13 17:48:33,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:33,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-12-13 17:48:33,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:33,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-12-13 17:48:33,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:33,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-12-13 17:48:33,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:33,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-12-13 17:48:33,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:33,362 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-12-13 17:48:33,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:48:33,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439242146] [2022-12-13 17:48:33,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439242146] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:48:33,362 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:48:33,362 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 17:48:33,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462759443] [2022-12-13 17:48:33,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:48:33,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 17:48:33,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:48:33,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 17:48:33,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:48:33,363 INFO L87 Difference]: Start difference. First operand 1633 states and 2113 transitions. Second operand has 6 states, 6 states have (on average 16.0) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-12-13 17:48:34,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:48:34,766 INFO L93 Difference]: Finished difference Result 1633 states and 2113 transitions. [2022-12-13 17:48:34,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 17:48:34,766 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 156 [2022-12-13 17:48:34,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:48:34,769 INFO L225 Difference]: With dead ends: 1633 [2022-12-13 17:48:34,769 INFO L226 Difference]: Without dead ends: 1631 [2022-12-13 17:48:34,770 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-12-13 17:48:34,770 INFO L413 NwaCegarLoop]: 599 mSDtfsCounter, 1527 mSDsluCounter, 1044 mSDsCounter, 0 mSdLazyCounter, 1567 mSolverCounterSat, 876 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1653 SdHoareTripleChecker+Valid, 1643 SdHoareTripleChecker+Invalid, 2443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 876 IncrementalHoareTripleChecker+Valid, 1567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-13 17:48:34,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1653 Valid, 1643 Invalid, 2443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [876 Valid, 1567 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-13 17:48:34,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1631 states. [2022-12-13 17:48:34,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1631 to 1631. [2022-12-13 17:48:34,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1631 states, 1053 states have (on average 1.1642924976258309) internal successors, (1226), 1088 states have internal predecessors, (1226), 443 states have call successors, (443), 130 states have call predecessors, (443), 127 states have return successors, (442), 434 states have call predecessors, (442), 441 states have call successors, (442) [2022-12-13 17:48:34,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1631 states to 1631 states and 2111 transitions. [2022-12-13 17:48:34,939 INFO L78 Accepts]: Start accepts. Automaton has 1631 states and 2111 transitions. Word has length 156 [2022-12-13 17:48:34,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:48:34,939 INFO L495 AbstractCegarLoop]: Abstraction has 1631 states and 2111 transitions. [2022-12-13 17:48:34,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-12-13 17:48:34,939 INFO L276 IsEmpty]: Start isEmpty. Operand 1631 states and 2111 transitions. [2022-12-13 17:48:34,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-12-13 17:48:34,940 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:48:34,940 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:48:34,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-13 17:48:34,940 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-13 17:48:34,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:48:34,941 INFO L85 PathProgramCache]: Analyzing trace with hash 689363731, now seen corresponding path program 1 times [2022-12-13 17:48:34,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:48:34,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554606560] [2022-12-13 17:48:34,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:48:34,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:48:34,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:35,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 17:48:35,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:35,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 17:48:35,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:35,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 17:48:35,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:35,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 17:48:35,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:35,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 17:48:35,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:35,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-12-13 17:48:35,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:35,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:35,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:35,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 17:48:35,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:35,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 17:48:35,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:35,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-12-13 17:48:35,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:35,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 17:48:35,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:35,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 17:48:35,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:35,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-12-13 17:48:35,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:35,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 17:48:35,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:35,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-12-13 17:48:35,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:35,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 17:48:35,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:35,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-12-13 17:48:35,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:35,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-12-13 17:48:35,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:35,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-12-13 17:48:35,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:35,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-12-13 17:48:35,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:35,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-12-13 17:48:35,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:35,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-12-13 17:48:35,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:35,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-12-13 17:48:35,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:35,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-12-13 17:48:35,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:35,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-12-13 17:48:35,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:35,152 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-12-13 17:48:35,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:48:35,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554606560] [2022-12-13 17:48:35,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554606560] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:48:35,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:48:35,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 17:48:35,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951767811] [2022-12-13 17:48:35,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:48:35,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 17:48:35,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:48:35,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 17:48:35,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:48:35,153 INFO L87 Difference]: Start difference. First operand 1631 states and 2111 transitions. Second operand has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-12-13 17:48:36,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:48:36,520 INFO L93 Difference]: Finished difference Result 1631 states and 2111 transitions. [2022-12-13 17:48:36,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 17:48:36,521 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 162 [2022-12-13 17:48:36,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:48:36,524 INFO L225 Difference]: With dead ends: 1631 [2022-12-13 17:48:36,524 INFO L226 Difference]: Without dead ends: 1629 [2022-12-13 17:48:36,524 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-12-13 17:48:36,525 INFO L413 NwaCegarLoop]: 599 mSDtfsCounter, 1521 mSDsluCounter, 1044 mSDsCounter, 0 mSdLazyCounter, 1563 mSolverCounterSat, 876 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1646 SdHoareTripleChecker+Valid, 1643 SdHoareTripleChecker+Invalid, 2439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 876 IncrementalHoareTripleChecker+Valid, 1563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-13 17:48:36,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1646 Valid, 1643 Invalid, 2439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [876 Valid, 1563 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-13 17:48:36,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1629 states. [2022-12-13 17:48:36,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1629 to 1629. [2022-12-13 17:48:36,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1629 states, 1052 states have (on average 1.1634980988593155) internal successors, (1224), 1086 states have internal predecessors, (1224), 443 states have call successors, (443), 130 states have call predecessors, (443), 127 states have return successors, (442), 434 states have call predecessors, (442), 441 states have call successors, (442) [2022-12-13 17:48:36,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1629 states to 1629 states and 2109 transitions. [2022-12-13 17:48:36,699 INFO L78 Accepts]: Start accepts. Automaton has 1629 states and 2109 transitions. Word has length 162 [2022-12-13 17:48:36,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:48:36,699 INFO L495 AbstractCegarLoop]: Abstraction has 1629 states and 2109 transitions. [2022-12-13 17:48:36,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-12-13 17:48:36,700 INFO L276 IsEmpty]: Start isEmpty. Operand 1629 states and 2109 transitions. [2022-12-13 17:48:36,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-12-13 17:48:36,701 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:48:36,701 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:48:36,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-13 17:48:36,701 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-13 17:48:36,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:48:36,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1812752292, now seen corresponding path program 1 times [2022-12-13 17:48:36,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:48:36,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520897832] [2022-12-13 17:48:36,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:48:36,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:48:36,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:36,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 17:48:36,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:36,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 17:48:36,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:36,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 17:48:36,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:36,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 17:48:36,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:36,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 17:48:36,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:36,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-12-13 17:48:36,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:36,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:36,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:36,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 17:48:36,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:36,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 17:48:36,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:36,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-12-13 17:48:36,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:36,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 17:48:36,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:36,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 17:48:36,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:36,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-12-13 17:48:36,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:36,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 17:48:36,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:36,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-12-13 17:48:36,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:36,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 17:48:36,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:36,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-12-13 17:48:36,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:36,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-12-13 17:48:36,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:36,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-12-13 17:48:36,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:36,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-12-13 17:48:36,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:36,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-12-13 17:48:36,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:36,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-12-13 17:48:36,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:36,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-12-13 17:48:36,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:36,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-12-13 17:48:36,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:36,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-12-13 17:48:36,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:36,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-12-13 17:48:36,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:36,914 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-12-13 17:48:36,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:48:36,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520897832] [2022-12-13 17:48:36,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520897832] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:48:36,915 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:48:36,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 17:48:36,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548872075] [2022-12-13 17:48:36,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:48:36,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 17:48:36,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:48:36,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 17:48:36,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:48:36,916 INFO L87 Difference]: Start difference. First operand 1629 states and 2109 transitions. Second operand has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-12-13 17:48:38,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:48:38,301 INFO L93 Difference]: Finished difference Result 1629 states and 2109 transitions. [2022-12-13 17:48:38,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 17:48:38,301 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 168 [2022-12-13 17:48:38,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:48:38,304 INFO L225 Difference]: With dead ends: 1629 [2022-12-13 17:48:38,304 INFO L226 Difference]: Without dead ends: 1627 [2022-12-13 17:48:38,305 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-12-13 17:48:38,305 INFO L413 NwaCegarLoop]: 599 mSDtfsCounter, 1515 mSDsluCounter, 1044 mSDsCounter, 0 mSdLazyCounter, 1559 mSolverCounterSat, 876 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1639 SdHoareTripleChecker+Valid, 1643 SdHoareTripleChecker+Invalid, 2435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 876 IncrementalHoareTripleChecker+Valid, 1559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-13 17:48:38,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1639 Valid, 1643 Invalid, 2435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [876 Valid, 1559 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-13 17:48:38,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1627 states. [2022-12-13 17:48:38,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1627 to 1627. [2022-12-13 17:48:38,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1627 states, 1051 states have (on average 1.1627021883920077) internal successors, (1222), 1084 states have internal predecessors, (1222), 443 states have call successors, (443), 130 states have call predecessors, (443), 127 states have return successors, (442), 434 states have call predecessors, (442), 441 states have call successors, (442) [2022-12-13 17:48:38,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1627 states to 1627 states and 2107 transitions. [2022-12-13 17:48:38,487 INFO L78 Accepts]: Start accepts. Automaton has 1627 states and 2107 transitions. Word has length 168 [2022-12-13 17:48:38,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:48:38,487 INFO L495 AbstractCegarLoop]: Abstraction has 1627 states and 2107 transitions. [2022-12-13 17:48:38,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-12-13 17:48:38,487 INFO L276 IsEmpty]: Start isEmpty. Operand 1627 states and 2107 transitions. [2022-12-13 17:48:38,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2022-12-13 17:48:38,488 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:48:38,489 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:48:38,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-13 17:48:38,489 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-13 17:48:38,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:48:38,489 INFO L85 PathProgramCache]: Analyzing trace with hash -401855305, now seen corresponding path program 1 times [2022-12-13 17:48:38,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:48:38,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176694927] [2022-12-13 17:48:38,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:48:38,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:48:38,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:38,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 17:48:38,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:38,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 17:48:38,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:38,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 17:48:38,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:38,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-12-13 17:48:38,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:38,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:38,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:38,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 17:48:38,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:38,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 17:48:38,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:38,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-12-13 17:48:38,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:38,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:38,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:38,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 17:48:38,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:38,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 17:48:38,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:38,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-12-13 17:48:38,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:38,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:38,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:38,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 17:48:38,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:38,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 17:48:38,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:38,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-12-13 17:48:38,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:38,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-12-13 17:48:38,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:38,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 17:48:38,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:38,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-12-13 17:48:38,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:38,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:38,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:38,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:38,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:38,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 17:48:38,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:38,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:38,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:38,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-12-13 17:48:38,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:38,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-12-13 17:48:38,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:38,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:38,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:38,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:38,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:38,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 17:48:38,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:38,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:38,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:38,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-12-13 17:48:38,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:38,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2022-12-13 17:48:38,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:39,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:39,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:39,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:39,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:39,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-12-13 17:48:39,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:39,056 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 209 trivial. 0 not checked. [2022-12-13 17:48:39,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:48:39,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176694927] [2022-12-13 17:48:39,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176694927] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:48:39,057 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:48:39,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-12-13 17:48:39,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133115431] [2022-12-13 17:48:39,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:48:39,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 17:48:39,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:48:39,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 17:48:39,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-12-13 17:48:39,059 INFO L87 Difference]: Start difference. First operand 1627 states and 2107 transitions. Second operand has 13 states, 12 states have (on average 6.916666666666667) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (24), 7 states have call predecessors, (24), 2 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2022-12-13 17:48:45,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:48:45,664 INFO L93 Difference]: Finished difference Result 2824 states and 3655 transitions. [2022-12-13 17:48:45,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-12-13 17:48:45,665 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 6.916666666666667) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (24), 7 states have call predecessors, (24), 2 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) Word has length 217 [2022-12-13 17:48:45,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:48:45,671 INFO L225 Difference]: With dead ends: 2824 [2022-12-13 17:48:45,671 INFO L226 Difference]: Without dead ends: 2822 [2022-12-13 17:48:45,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 373 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=368, Invalid=1114, Unknown=0, NotChecked=0, Total=1482 [2022-12-13 17:48:45,672 INFO L413 NwaCegarLoop]: 1020 mSDtfsCounter, 6492 mSDsluCounter, 4579 mSDsCounter, 0 mSdLazyCounter, 8764 mSolverCounterSat, 5178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6780 SdHoareTripleChecker+Valid, 5599 SdHoareTripleChecker+Invalid, 13942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5178 IncrementalHoareTripleChecker+Valid, 8764 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-12-13 17:48:45,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6780 Valid, 5599 Invalid, 13942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5178 Valid, 8764 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-12-13 17:48:45,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2822 states. [2022-12-13 17:48:45,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2822 to 2352. [2022-12-13 17:48:45,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2352 states, 1521 states have (on average 1.1669953977646286) internal successors, (1775), 1570 states have internal predecessors, (1775), 642 states have call successors, (642), 185 states have call predecessors, (642), 183 states have return successors, (642), 628 states have call predecessors, (642), 640 states have call successors, (642) [2022-12-13 17:48:45,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2352 states to 2352 states and 3059 transitions. [2022-12-13 17:48:45,956 INFO L78 Accepts]: Start accepts. Automaton has 2352 states and 3059 transitions. Word has length 217 [2022-12-13 17:48:45,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:48:45,957 INFO L495 AbstractCegarLoop]: Abstraction has 2352 states and 3059 transitions. [2022-12-13 17:48:45,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 6.916666666666667) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (24), 7 states have call predecessors, (24), 2 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2022-12-13 17:48:45,957 INFO L276 IsEmpty]: Start isEmpty. Operand 2352 states and 3059 transitions. [2022-12-13 17:48:45,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2022-12-13 17:48:45,958 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:48:45,958 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:48:45,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-12-13 17:48:45,959 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-13 17:48:45,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:48:45,959 INFO L85 PathProgramCache]: Analyzing trace with hash 951454392, now seen corresponding path program 1 times [2022-12-13 17:48:45,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:48:45,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323944119] [2022-12-13 17:48:45,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:48:45,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:48:46,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:46,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 17:48:46,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:46,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 17:48:46,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:46,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 17:48:46,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:46,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-12-13 17:48:46,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:46,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:46,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:46,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 17:48:46,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:46,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 17:48:46,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:46,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-12-13 17:48:46,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:46,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:46,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:46,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 17:48:46,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:46,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 17:48:46,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:46,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-12-13 17:48:46,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:46,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:46,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:46,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 17:48:46,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:46,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 17:48:46,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:46,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-12-13 17:48:46,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:46,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-12-13 17:48:46,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:46,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 17:48:46,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:46,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-12-13 17:48:46,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:46,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:46,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:46,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:46,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:46,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 17:48:46,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:46,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:46,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:46,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-12-13 17:48:46,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:46,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-12-13 17:48:46,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:46,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:46,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:46,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:46,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:46,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 17:48:46,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:46,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:46,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:46,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-12-13 17:48:46,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:46,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2022-12-13 17:48:46,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:46,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:46,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:46,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:46,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:46,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-12-13 17:48:46,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:46,876 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2022-12-13 17:48:46,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:48:46,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323944119] [2022-12-13 17:48:46,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323944119] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 17:48:46,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [132388348] [2022-12-13 17:48:46,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:48:46,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:48:46,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:48:46,878 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:48:46,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 17:48:47,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:47,407 INFO L263 TraceCheckSpWp]: Trace formula consists of 2096 conjuncts, 89 conjunts are in the unsatisfiable core [2022-12-13 17:48:47,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:48:47,523 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2022-12-13 17:48:47,524 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:48:47,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [132388348] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:48:47,524 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 17:48:47,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [15] total 15 [2022-12-13 17:48:47,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817978943] [2022-12-13 17:48:47,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:48:47,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 17:48:47,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:48:47,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 17:48:47,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2022-12-13 17:48:47,526 INFO L87 Difference]: Start difference. First operand 2352 states and 3059 transitions. Second operand has 10 states, 10 states have (on average 10.9) internal successors, (109), 8 states have internal predecessors, (109), 3 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (28), 5 states have call predecessors, (28), 3 states have call successors, (28) [2022-12-13 17:48:48,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:48:48,765 INFO L93 Difference]: Finished difference Result 5013 states and 6577 transitions. [2022-12-13 17:48:48,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 17:48:48,766 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.9) internal successors, (109), 8 states have internal predecessors, (109), 3 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (28), 5 states have call predecessors, (28), 3 states have call successors, (28) Word has length 217 [2022-12-13 17:48:48,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:48:48,773 INFO L225 Difference]: With dead ends: 5013 [2022-12-13 17:48:48,773 INFO L226 Difference]: Without dead ends: 2682 [2022-12-13 17:48:48,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 282 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2022-12-13 17:48:48,777 INFO L413 NwaCegarLoop]: 1293 mSDtfsCounter, 80 mSDsluCounter, 10194 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 11487 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-13 17:48:48,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 11487 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-13 17:48:48,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2682 states. [2022-12-13 17:48:49,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2682 to 2385. [2022-12-13 17:48:49,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2385 states, 1545 states have (on average 1.164401294498382) internal successors, (1799), 1594 states have internal predecessors, (1799), 645 states have call successors, (645), 185 states have call predecessors, (645), 189 states have return successors, (657), 637 states have call predecessors, (657), 643 states have call successors, (657) [2022-12-13 17:48:49,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2385 states to 2385 states and 3101 transitions. [2022-12-13 17:48:49,072 INFO L78 Accepts]: Start accepts. Automaton has 2385 states and 3101 transitions. Word has length 217 [2022-12-13 17:48:49,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:48:49,072 INFO L495 AbstractCegarLoop]: Abstraction has 2385 states and 3101 transitions. [2022-12-13 17:48:49,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.9) internal successors, (109), 8 states have internal predecessors, (109), 3 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (28), 5 states have call predecessors, (28), 3 states have call successors, (28) [2022-12-13 17:48:49,072 INFO L276 IsEmpty]: Start isEmpty. Operand 2385 states and 3101 transitions. [2022-12-13 17:48:49,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-12-13 17:48:49,073 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:48:49,073 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:48:49,081 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 17:48:49,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:48:49,274 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-13 17:48:49,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:48:49,275 INFO L85 PathProgramCache]: Analyzing trace with hash 2061252148, now seen corresponding path program 1 times [2022-12-13 17:48:49,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:48:49,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992477219] [2022-12-13 17:48:49,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:48:49,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:48:49,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:49,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 17:48:49,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:49,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 17:48:49,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:49,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 17:48:49,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:49,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 17:48:49,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:49,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 17:48:49,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:49,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-12-13 17:48:49,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:49,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:49,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:49,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 17:48:49,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:49,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 17:48:49,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:49,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-12-13 17:48:49,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:49,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 17:48:49,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:49,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 17:48:49,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:49,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-12-13 17:48:49,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:49,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 17:48:49,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:49,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-12-13 17:48:49,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:49,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 17:48:49,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:49,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-12-13 17:48:49,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:49,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-12-13 17:48:49,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:49,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-12-13 17:48:49,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:49,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-12-13 17:48:49,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:49,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-12-13 17:48:49,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:49,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-12-13 17:48:49,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:49,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-12-13 17:48:49,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:49,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-12-13 17:48:49,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:49,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-12-13 17:48:49,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:49,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-12-13 17:48:49,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:49,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-12-13 17:48:49,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:49,501 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-12-13 17:48:49,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:48:49,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992477219] [2022-12-13 17:48:49,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992477219] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:48:49,501 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:48:49,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 17:48:49,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790974288] [2022-12-13 17:48:49,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:48:49,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 17:48:49,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:48:49,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 17:48:49,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:48:49,503 INFO L87 Difference]: Start difference. First operand 2385 states and 3101 transitions. Second operand has 6 states, 6 states have (on average 18.0) internal successors, (108), 4 states have internal predecessors, (108), 2 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-12-13 17:48:51,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:48:51,035 INFO L93 Difference]: Finished difference Result 2385 states and 3101 transitions. [2022-12-13 17:48:51,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 17:48:51,036 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.0) internal successors, (108), 4 states have internal predecessors, (108), 2 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 174 [2022-12-13 17:48:51,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:48:51,040 INFO L225 Difference]: With dead ends: 2385 [2022-12-13 17:48:51,041 INFO L226 Difference]: Without dead ends: 2383 [2022-12-13 17:48:51,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-12-13 17:48:51,041 INFO L413 NwaCegarLoop]: 599 mSDtfsCounter, 1509 mSDsluCounter, 1044 mSDsCounter, 0 mSdLazyCounter, 1555 mSolverCounterSat, 876 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1632 SdHoareTripleChecker+Valid, 1643 SdHoareTripleChecker+Invalid, 2431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 876 IncrementalHoareTripleChecker+Valid, 1555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-13 17:48:51,042 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1632 Valid, 1643 Invalid, 2431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [876 Valid, 1555 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-13 17:48:51,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2383 states. [2022-12-13 17:48:51,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2383 to 2383. [2022-12-13 17:48:51,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2383 states, 1544 states have (on average 1.163860103626943) internal successors, (1797), 1592 states have internal predecessors, (1797), 645 states have call successors, (645), 185 states have call predecessors, (645), 189 states have return successors, (657), 637 states have call predecessors, (657), 643 states have call successors, (657) [2022-12-13 17:48:51,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2383 states to 2383 states and 3099 transitions. [2022-12-13 17:48:51,358 INFO L78 Accepts]: Start accepts. Automaton has 2383 states and 3099 transitions. Word has length 174 [2022-12-13 17:48:51,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:48:51,358 INFO L495 AbstractCegarLoop]: Abstraction has 2383 states and 3099 transitions. [2022-12-13 17:48:51,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.0) internal successors, (108), 4 states have internal predecessors, (108), 2 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-12-13 17:48:51,359 INFO L276 IsEmpty]: Start isEmpty. Operand 2383 states and 3099 transitions. [2022-12-13 17:48:51,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-12-13 17:48:51,360 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:48:51,360 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:48:51,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-12-13 17:48:51,360 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-13 17:48:51,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:48:51,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1255257720, now seen corresponding path program 1 times [2022-12-13 17:48:51,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:48:51,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383150055] [2022-12-13 17:48:51,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:48:51,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:48:51,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:51,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 17:48:51,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:51,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 17:48:51,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:51,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 17:48:51,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:51,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 17:48:51,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:51,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 17:48:51,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:51,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-12-13 17:48:51,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:51,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:51,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:51,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 17:48:51,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:51,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 17:48:51,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:51,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-12-13 17:48:51,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:51,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 17:48:51,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:51,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 17:48:51,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:51,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-12-13 17:48:51,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:51,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 17:48:51,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:51,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-12-13 17:48:51,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:51,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 17:48:51,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:51,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-12-13 17:48:51,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:51,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-12-13 17:48:51,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:51,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-12-13 17:48:51,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:51,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-12-13 17:48:51,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:51,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-12-13 17:48:51,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:51,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-12-13 17:48:51,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:51,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-12-13 17:48:51,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:51,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-12-13 17:48:51,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:51,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-12-13 17:48:51,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:51,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-12-13 17:48:51,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:51,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-12-13 17:48:51,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:51,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-12-13 17:48:51,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:51,586 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-12-13 17:48:51,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:48:51,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383150055] [2022-12-13 17:48:51,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383150055] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:48:51,587 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:48:51,587 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 17:48:51,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268124588] [2022-12-13 17:48:51,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:48:51,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 17:48:51,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:48:51,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 17:48:51,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:48:51,588 INFO L87 Difference]: Start difference. First operand 2383 states and 3099 transitions. Second operand has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-12-13 17:48:53,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:48:53,432 INFO L93 Difference]: Finished difference Result 2383 states and 3099 transitions. [2022-12-13 17:48:53,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 17:48:53,433 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 180 [2022-12-13 17:48:53,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:48:53,439 INFO L225 Difference]: With dead ends: 2383 [2022-12-13 17:48:53,439 INFO L226 Difference]: Without dead ends: 2208 [2022-12-13 17:48:53,441 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-12-13 17:48:53,441 INFO L413 NwaCegarLoop]: 599 mSDtfsCounter, 1500 mSDsluCounter, 1044 mSDsCounter, 0 mSdLazyCounter, 1554 mSolverCounterSat, 876 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1622 SdHoareTripleChecker+Valid, 1643 SdHoareTripleChecker+Invalid, 2430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 876 IncrementalHoareTripleChecker+Valid, 1554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-13 17:48:53,441 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1622 Valid, 1643 Invalid, 2430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [876 Valid, 1554 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-13 17:48:53,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2208 states. [2022-12-13 17:48:53,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2208 to 2208. [2022-12-13 17:48:53,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2208 states, 1439 states have (on average 1.173036831132731) internal successors, (1688), 1484 states have internal predecessors, (1688), 596 states have call successors, (596), 165 states have call predecessors, (596), 169 states have return successors, (608), 590 states have call predecessors, (608), 594 states have call successors, (608) [2022-12-13 17:48:53,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2208 states to 2208 states and 2892 transitions. [2022-12-13 17:48:53,728 INFO L78 Accepts]: Start accepts. Automaton has 2208 states and 2892 transitions. Word has length 180 [2022-12-13 17:48:53,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:48:53,728 INFO L495 AbstractCegarLoop]: Abstraction has 2208 states and 2892 transitions. [2022-12-13 17:48:53,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-12-13 17:48:53,729 INFO L276 IsEmpty]: Start isEmpty. Operand 2208 states and 2892 transitions. [2022-12-13 17:48:53,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2022-12-13 17:48:53,730 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:48:53,730 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:48:53,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-12-13 17:48:53,730 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-13 17:48:53,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:48:53,731 INFO L85 PathProgramCache]: Analyzing trace with hash -949539292, now seen corresponding path program 1 times [2022-12-13 17:48:53,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:48:53,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575220912] [2022-12-13 17:48:53,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:48:53,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:48:53,781 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 17:48:53,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1671305286] [2022-12-13 17:48:53,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:48:53,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:48:53,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:48:53,782 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:48:53,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 17:48:54,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:54,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 2240 conjuncts, 46 conjunts are in the unsatisfiable core [2022-12-13 17:48:54,343 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:48:54,430 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2022-12-13 17:48:54,431 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:48:54,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:48:54,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575220912] [2022-12-13 17:48:54,431 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 17:48:54,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1671305286] [2022-12-13 17:48:54,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1671305286] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:48:54,431 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:48:54,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 17:48:54,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711645650] [2022-12-13 17:48:54,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:48:54,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 17:48:54,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:48:54,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 17:48:54,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 17:48:54,433 INFO L87 Difference]: Start difference. First operand 2208 states and 2892 transitions. Second operand has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 7 states have internal predecessors, (88), 2 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (27), 4 states have call predecessors, (27), 2 states have call successors, (27) [2022-12-13 17:48:55,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:48:55,017 INFO L93 Difference]: Finished difference Result 4700 states and 6206 transitions. [2022-12-13 17:48:55,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 17:48:55,018 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 7 states have internal predecessors, (88), 2 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (27), 4 states have call predecessors, (27), 2 states have call successors, (27) Word has length 259 [2022-12-13 17:48:55,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:48:55,025 INFO L225 Difference]: With dead ends: 4700 [2022-12-13 17:48:55,025 INFO L226 Difference]: Without dead ends: 2511 [2022-12-13 17:48:55,032 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-12-13 17:48:55,032 INFO L413 NwaCegarLoop]: 1136 mSDtfsCounter, 88 mSDsluCounter, 7822 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 8958 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 17:48:55,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 8958 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 17:48:55,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2511 states. [2022-12-13 17:48:55,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2511 to 2235. [2022-12-13 17:48:55,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2235 states, 1460 states have (on average 1.1705479452054794) internal successors, (1709), 1505 states have internal predecessors, (1709), 596 states have call successors, (596), 165 states have call predecessors, (596), 175 states have return successors, (617), 596 states have call predecessors, (617), 594 states have call successors, (617) [2022-12-13 17:48:55,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2235 states to 2235 states and 2922 transitions. [2022-12-13 17:48:55,435 INFO L78 Accepts]: Start accepts. Automaton has 2235 states and 2922 transitions. Word has length 259 [2022-12-13 17:48:55,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:48:55,436 INFO L495 AbstractCegarLoop]: Abstraction has 2235 states and 2922 transitions. [2022-12-13 17:48:55,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 7 states have internal predecessors, (88), 2 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (27), 4 states have call predecessors, (27), 2 states have call successors, (27) [2022-12-13 17:48:55,436 INFO L276 IsEmpty]: Start isEmpty. Operand 2235 states and 2922 transitions. [2022-12-13 17:48:55,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2022-12-13 17:48:55,437 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:48:55,437 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:48:55,448 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 17:48:55,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:48:55,638 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-13 17:48:55,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:48:55,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1603747954, now seen corresponding path program 1 times [2022-12-13 17:48:55,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:48:55,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009709127] [2022-12-13 17:48:55,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:48:55,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:48:55,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:56,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 17:48:56,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:56,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 17:48:56,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:56,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 17:48:56,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:56,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-12-13 17:48:56,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:56,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:56,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:56,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 17:48:56,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:56,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 17:48:56,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:56,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-12-13 17:48:56,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:56,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:56,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:56,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 17:48:56,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:56,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 17:48:56,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:56,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-12-13 17:48:56,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:56,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:56,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:56,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 17:48:56,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:56,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 17:48:56,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:56,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-12-13 17:48:56,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:56,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-12-13 17:48:56,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:56,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 17:48:56,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:56,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-12-13 17:48:56,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:56,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:56,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:56,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:56,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:56,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 17:48:56,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:56,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:56,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:56,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-12-13 17:48:56,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:56,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-12-13 17:48:56,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:56,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-12-13 17:48:56,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:56,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-12-13 17:48:56,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:56,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:56,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:56,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-12-13 17:48:56,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:56,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-12-13 17:48:56,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:56,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-12-13 17:48:56,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:56,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-12-13 17:48:56,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:56,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:56,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:56,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:56,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:56,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-12-13 17:48:56,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:56,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:56,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:56,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:48:56,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:56,272 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 353 trivial. 0 not checked. [2022-12-13 17:48:56,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:48:56,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009709127] [2022-12-13 17:48:56,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009709127] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:48:56,272 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:48:56,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 17:48:56,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633320752] [2022-12-13 17:48:56,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:48:56,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 17:48:56,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:48:56,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 17:48:56,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-12-13 17:48:56,274 INFO L87 Difference]: Start difference. First operand 2235 states and 2922 transitions. Second operand has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (31), 7 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-12-13 17:48:58,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:48:58,320 INFO L93 Difference]: Finished difference Result 2364 states and 3119 transitions. [2022-12-13 17:48:58,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 17:48:58,321 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (31), 7 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 235 [2022-12-13 17:48:58,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:48:58,325 INFO L225 Difference]: With dead ends: 2364 [2022-12-13 17:48:58,325 INFO L226 Difference]: Without dead ends: 2362 [2022-12-13 17:48:58,325 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=98, Invalid=208, Unknown=0, NotChecked=0, Total=306 [2022-12-13 17:48:58,326 INFO L413 NwaCegarLoop]: 519 mSDtfsCounter, 1728 mSDsluCounter, 1692 mSDsCounter, 0 mSdLazyCounter, 2227 mSolverCounterSat, 1455 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1826 SdHoareTripleChecker+Valid, 2211 SdHoareTripleChecker+Invalid, 3682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1455 IncrementalHoareTripleChecker+Valid, 2227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-13 17:48:58,326 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1826 Valid, 2211 Invalid, 3682 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1455 Valid, 2227 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-13 17:48:58,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2362 states. [2022-12-13 17:48:58,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2362 to 2251. [2022-12-13 17:48:58,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2251 states, 1471 states have (on average 1.167233174711081) internal successors, (1717), 1515 states have internal predecessors, (1717), 596 states have call successors, (596), 171 states have call predecessors, (596), 181 states have return successors, (617), 596 states have call predecessors, (617), 594 states have call successors, (617) [2022-12-13 17:48:58,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2251 states to 2251 states and 2930 transitions. [2022-12-13 17:48:58,671 INFO L78 Accepts]: Start accepts. Automaton has 2251 states and 2930 transitions. Word has length 235 [2022-12-13 17:48:58,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:48:58,671 INFO L495 AbstractCegarLoop]: Abstraction has 2251 states and 2930 transitions. [2022-12-13 17:48:58,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (31), 7 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-12-13 17:48:58,671 INFO L276 IsEmpty]: Start isEmpty. Operand 2251 states and 2930 transitions. [2022-12-13 17:48:58,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2022-12-13 17:48:58,672 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:48:58,672 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 6, 6, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:48:58,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-12-13 17:48:58,673 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-13 17:48:58,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:48:58,673 INFO L85 PathProgramCache]: Analyzing trace with hash -1417244552, now seen corresponding path program 1 times [2022-12-13 17:48:58,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:48:58,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289910352] [2022-12-13 17:48:58,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:48:58,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:48:58,713 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 17:48:58,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [343280676] [2022-12-13 17:48:58,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:48:58,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:48:58,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:48:58,715 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:48:58,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 17:48:59,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:59,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 2292 conjuncts, 40 conjunts are in the unsatisfiable core [2022-12-13 17:48:59,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:48:59,383 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 209 proven. 3 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2022-12-13 17:48:59,383 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 17:48:59,744 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 6 proven. 45 refuted. 0 times theorem prover too weak. 456 trivial. 0 not checked. [2022-12-13 17:48:59,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:48:59,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289910352] [2022-12-13 17:48:59,745 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 17:48:59,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [343280676] [2022-12-13 17:48:59,745 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [343280676] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 17:48:59,745 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 17:48:59,745 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 14 [2022-12-13 17:48:59,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135516608] [2022-12-13 17:48:59,746 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 17:48:59,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 17:48:59,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:48:59,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 17:48:59,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-12-13 17:48:59,747 INFO L87 Difference]: Start difference. First operand 2251 states and 2930 transitions. Second operand has 14 states, 13 states have (on average 12.307692307692308) internal successors, (160), 12 states have internal predecessors, (160), 5 states have call successors, (62), 2 states have call predecessors, (62), 5 states have return successors, (63), 6 states have call predecessors, (63), 5 states have call successors, (63) [2022-12-13 17:49:00,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:49:00,504 INFO L93 Difference]: Finished difference Result 4487 states and 5839 transitions. [2022-12-13 17:49:00,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 17:49:00,506 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 12.307692307692308) internal successors, (160), 12 states have internal predecessors, (160), 5 states have call successors, (62), 2 states have call predecessors, (62), 5 states have return successors, (63), 6 states have call predecessors, (63), 5 states have call successors, (63) Word has length 275 [2022-12-13 17:49:00,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:49:00,509 INFO L225 Difference]: With dead ends: 4487 [2022-12-13 17:49:00,509 INFO L226 Difference]: Without dead ends: 2251 [2022-12-13 17:49:00,512 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 550 GetRequests, 536 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-12-13 17:49:00,512 INFO L413 NwaCegarLoop]: 967 mSDtfsCounter, 291 mSDsluCounter, 8799 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 397 SdHoareTripleChecker+Valid, 9766 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 17:49:00,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [397 Valid, 9766 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 17:49:00,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2251 states. [2022-12-13 17:49:00,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2251 to 2251. [2022-12-13 17:49:00,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2251 states, 1471 states have (on average 1.1665533650577837) internal successors, (1716), 1514 states have internal predecessors, (1716), 596 states have call successors, (596), 171 states have call predecessors, (596), 181 states have return successors, (617), 596 states have call predecessors, (617), 594 states have call successors, (617) [2022-12-13 17:49:00,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2251 states to 2251 states and 2929 transitions. [2022-12-13 17:49:00,843 INFO L78 Accepts]: Start accepts. Automaton has 2251 states and 2929 transitions. Word has length 275 [2022-12-13 17:49:00,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:49:00,843 INFO L495 AbstractCegarLoop]: Abstraction has 2251 states and 2929 transitions. [2022-12-13 17:49:00,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 12.307692307692308) internal successors, (160), 12 states have internal predecessors, (160), 5 states have call successors, (62), 2 states have call predecessors, (62), 5 states have return successors, (63), 6 states have call predecessors, (63), 5 states have call successors, (63) [2022-12-13 17:49:00,843 INFO L276 IsEmpty]: Start isEmpty. Operand 2251 states and 2929 transitions. [2022-12-13 17:49:00,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2022-12-13 17:49:00,844 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:49:00,844 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 6, 6, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:49:00,856 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-13 17:49:01,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:49:01,045 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-13 17:49:01,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:49:01,046 INFO L85 PathProgramCache]: Analyzing trace with hash -419154501, now seen corresponding path program 1 times [2022-12-13 17:49:01,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:49:01,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75686179] [2022-12-13 17:49:01,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:49:01,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:49:01,096 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 17:49:01,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [630812767] [2022-12-13 17:49:01,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:49:01,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:49:01,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:49:01,097 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:49:01,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 17:49:01,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:01,682 INFO L263 TraceCheckSpWp]: Trace formula consists of 2310 conjuncts, 28 conjunts are in the unsatisfiable core [2022-12-13 17:49:01,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:49:01,789 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 36 proven. 3 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked. [2022-12-13 17:49:01,789 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 17:49:02,158 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 36 proven. 3 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked. [2022-12-13 17:49:02,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:49:02,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75686179] [2022-12-13 17:49:02,159 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 17:49:02,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [630812767] [2022-12-13 17:49:02,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [630812767] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 17:49:02,159 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 17:49:02,160 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 14 [2022-12-13 17:49:02,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816412579] [2022-12-13 17:49:02,160 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 17:49:02,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 17:49:02,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:49:02,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 17:49:02,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-12-13 17:49:02,162 INFO L87 Difference]: Start difference. First operand 2251 states and 2929 transitions. Second operand has 14 states, 13 states have (on average 8.076923076923077) internal successors, (105), 12 states have internal predecessors, (105), 5 states have call successors, (36), 2 states have call predecessors, (36), 5 states have return successors, (36), 6 states have call predecessors, (36), 5 states have call successors, (36) [2022-12-13 17:49:02,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:49:02,808 INFO L93 Difference]: Finished difference Result 4220 states and 5461 transitions. [2022-12-13 17:49:02,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 17:49:02,809 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 8.076923076923077) internal successors, (105), 12 states have internal predecessors, (105), 5 states have call successors, (36), 2 states have call predecessors, (36), 5 states have return successors, (36), 6 states have call predecessors, (36), 5 states have call successors, (36) Word has length 279 [2022-12-13 17:49:02,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:49:02,813 INFO L225 Difference]: With dead ends: 4220 [2022-12-13 17:49:02,813 INFO L226 Difference]: Without dead ends: 1988 [2022-12-13 17:49:02,817 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 558 GetRequests, 544 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-12-13 17:49:02,817 INFO L413 NwaCegarLoop]: 973 mSDtfsCounter, 6 mSDsluCounter, 11563 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 12536 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 17:49:02,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 12536 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 17:49:02,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1988 states. [2022-12-13 17:49:03,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1988 to 1986. [2022-12-13 17:49:03,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1986 states, 1291 states have (on average 1.1518202943454687) internal successors, (1487), 1330 states have internal predecessors, (1487), 523 states have call successors, (523), 161 states have call predecessors, (523), 169 states have return successors, (540), 522 states have call predecessors, (540), 521 states have call successors, (540) [2022-12-13 17:49:03,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1986 states to 1986 states and 2550 transitions. [2022-12-13 17:49:03,094 INFO L78 Accepts]: Start accepts. Automaton has 1986 states and 2550 transitions. Word has length 279 [2022-12-13 17:49:03,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:49:03,094 INFO L495 AbstractCegarLoop]: Abstraction has 1986 states and 2550 transitions. [2022-12-13 17:49:03,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 8.076923076923077) internal successors, (105), 12 states have internal predecessors, (105), 5 states have call successors, (36), 2 states have call predecessors, (36), 5 states have return successors, (36), 6 states have call predecessors, (36), 5 states have call successors, (36) [2022-12-13 17:49:03,094 INFO L276 IsEmpty]: Start isEmpty. Operand 1986 states and 2550 transitions. [2022-12-13 17:49:03,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2022-12-13 17:49:03,095 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:49:03,096 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:49:03,104 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-13 17:49:03,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:49:03,298 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-13 17:49:03,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:49:03,299 INFO L85 PathProgramCache]: Analyzing trace with hash 2147132909, now seen corresponding path program 1 times [2022-12-13 17:49:03,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:49:03,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112750909] [2022-12-13 17:49:03,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:49:03,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:49:03,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:03,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 17:49:03,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:03,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 17:49:03,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:03,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 17:49:03,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:03,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-12-13 17:49:03,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:03,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:49:03,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:03,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 17:49:03,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:03,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 17:49:03,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:03,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-12-13 17:49:03,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:03,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 17:49:03,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:03,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:49:03,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:03,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 17:49:03,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:03,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 17:49:03,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:03,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-12-13 17:49:03,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:03,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:49:03,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:03,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 17:49:03,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:03,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 17:49:03,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:03,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-12-13 17:49:03,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:03,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 17:49:03,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:03,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 17:49:03,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:03,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-12-13 17:49:03,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:03,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:49:03,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:03,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:49:03,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:03,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 17:49:03,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:03,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:49:03,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:03,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-12-13 17:49:03,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:03,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-12-13 17:49:03,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:03,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-12-13 17:49:03,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:03,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-12-13 17:49:03,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:03,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:49:03,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:03,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-12-13 17:49:03,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:03,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-12-13 17:49:03,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:03,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-12-13 17:49:03,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:03,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-12-13 17:49:03,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:03,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:49:03,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:03,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:49:03,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:03,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-12-13 17:49:03,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:03,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:49:03,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:03,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:49:03,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:03,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2022-12-13 17:49:03,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:03,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:49:03,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:03,761 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 353 trivial. 0 not checked. [2022-12-13 17:49:03,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:49:03,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112750909] [2022-12-13 17:49:03,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112750909] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:49:03,762 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:49:03,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 17:49:03,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987064972] [2022-12-13 17:49:03,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:49:03,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 17:49:03,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:49:03,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 17:49:03,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-12-13 17:49:03,763 INFO L87 Difference]: Start difference. First operand 1986 states and 2550 transitions. Second operand has 11 states, 11 states have (on average 9.363636363636363) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (34), 9 states have call predecessors, (34), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) [2022-12-13 17:49:06,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:49:06,542 INFO L93 Difference]: Finished difference Result 2098 states and 2734 transitions. [2022-12-13 17:49:06,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 17:49:06,543 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.363636363636363) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (34), 9 states have call predecessors, (34), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) Word has length 252 [2022-12-13 17:49:06,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:49:06,547 INFO L225 Difference]: With dead ends: 2098 [2022-12-13 17:49:06,547 INFO L226 Difference]: Without dead ends: 2096 [2022-12-13 17:49:06,547 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=154, Invalid=352, Unknown=0, NotChecked=0, Total=506 [2022-12-13 17:49:06,548 INFO L413 NwaCegarLoop]: 519 mSDtfsCounter, 1350 mSDsluCounter, 2672 mSDsCounter, 0 mSdLazyCounter, 3209 mSolverCounterSat, 1564 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1350 SdHoareTripleChecker+Valid, 3191 SdHoareTripleChecker+Invalid, 4773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1564 IncrementalHoareTripleChecker+Valid, 3209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-12-13 17:49:06,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1350 Valid, 3191 Invalid, 4773 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1564 Valid, 3209 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-12-13 17:49:06,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2096 states. [2022-12-13 17:49:06,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2096 to 1984. [2022-12-13 17:49:06,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1984 states, 1290 states have (on average 1.1496124031007753) internal successors, (1483), 1328 states have internal predecessors, (1483), 523 states have call successors, (523), 161 states have call predecessors, (523), 169 states have return successors, (540), 522 states have call predecessors, (540), 521 states have call successors, (540) [2022-12-13 17:49:06,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1984 states to 1984 states and 2546 transitions. [2022-12-13 17:49:06,817 INFO L78 Accepts]: Start accepts. Automaton has 1984 states and 2546 transitions. Word has length 252 [2022-12-13 17:49:06,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:49:06,817 INFO L495 AbstractCegarLoop]: Abstraction has 1984 states and 2546 transitions. [2022-12-13 17:49:06,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.363636363636363) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (34), 9 states have call predecessors, (34), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) [2022-12-13 17:49:06,818 INFO L276 IsEmpty]: Start isEmpty. Operand 1984 states and 2546 transitions. [2022-12-13 17:49:06,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2022-12-13 17:49:06,820 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:49:06,820 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 8, 8, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:49:06,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-12-13 17:49:06,820 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-13 17:49:06,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:49:06,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1468541913, now seen corresponding path program 1 times [2022-12-13 17:49:06,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:49:06,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606812302] [2022-12-13 17:49:06,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:49:06,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:49:06,864 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 17:49:06,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [912484100] [2022-12-13 17:49:06,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:49:06,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:49:06,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:49:06,865 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:49:06,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-13 17:49:07,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:07,321 INFO L263 TraceCheckSpWp]: Trace formula consists of 2549 conjuncts, 58 conjunts are in the unsatisfiable core [2022-12-13 17:49:07,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:49:07,523 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 49 proven. 39 refuted. 0 times theorem prover too weak. 602 trivial. 0 not checked. [2022-12-13 17:49:07,524 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 17:49:07,798 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 49 proven. 39 refuted. 0 times theorem prover too weak. 602 trivial. 0 not checked. [2022-12-13 17:49:07,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:49:07,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606812302] [2022-12-13 17:49:07,799 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 17:49:07,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [912484100] [2022-12-13 17:49:07,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [912484100] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 17:49:07,799 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 17:49:07,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 20 [2022-12-13 17:49:07,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768904647] [2022-12-13 17:49:07,800 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 17:49:07,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-12-13 17:49:07,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:49:07,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-12-13 17:49:07,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=339, Unknown=0, NotChecked=0, Total=380 [2022-12-13 17:49:07,802 INFO L87 Difference]: Start difference. First operand 1984 states and 2546 transitions. Second operand has 20 states, 19 states have (on average 7.105263157894737) internal successors, (135), 19 states have internal predecessors, (135), 8 states have call successors, (50), 2 states have call predecessors, (50), 4 states have return successors, (50), 8 states have call predecessors, (50), 7 states have call successors, (50) [2022-12-13 17:49:08,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:49:08,498 INFO L93 Difference]: Finished difference Result 1992 states and 2553 transitions. [2022-12-13 17:49:08,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-13 17:49:08,499 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 7.105263157894737) internal successors, (135), 19 states have internal predecessors, (135), 8 states have call successors, (50), 2 states have call predecessors, (50), 4 states have return successors, (50), 8 states have call predecessors, (50), 7 states have call successors, (50) Word has length 361 [2022-12-13 17:49:08,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:49:08,502 INFO L225 Difference]: With dead ends: 1992 [2022-12-13 17:49:08,502 INFO L226 Difference]: Without dead ends: 1984 [2022-12-13 17:49:08,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 731 GetRequests, 702 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=161, Invalid=769, Unknown=0, NotChecked=0, Total=930 [2022-12-13 17:49:08,503 INFO L413 NwaCegarLoop]: 953 mSDtfsCounter, 384 mSDsluCounter, 13713 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 464 SdHoareTripleChecker+Valid, 14666 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 17:49:08,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [464 Valid, 14666 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 508 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 17:49:08,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1984 states. [2022-12-13 17:49:08,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1984 to 1980. [2022-12-13 17:49:08,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1980 states, 1289 states have (on average 1.148176881303336) internal successors, (1480), 1325 states have internal predecessors, (1480), 520 states have call successors, (520), 161 states have call predecessors, (520), 169 states have return successors, (538), 521 states have call predecessors, (538), 519 states have call successors, (538) [2022-12-13 17:49:08,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1980 states to 1980 states and 2538 transitions. [2022-12-13 17:49:08,777 INFO L78 Accepts]: Start accepts. Automaton has 1980 states and 2538 transitions. Word has length 361 [2022-12-13 17:49:08,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:49:08,777 INFO L495 AbstractCegarLoop]: Abstraction has 1980 states and 2538 transitions. [2022-12-13 17:49:08,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 7.105263157894737) internal successors, (135), 19 states have internal predecessors, (135), 8 states have call successors, (50), 2 states have call predecessors, (50), 4 states have return successors, (50), 8 states have call predecessors, (50), 7 states have call successors, (50) [2022-12-13 17:49:08,777 INFO L276 IsEmpty]: Start isEmpty. Operand 1980 states and 2538 transitions. [2022-12-13 17:49:08,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 389 [2022-12-13 17:49:08,780 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:49:08,780 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 8, 8, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:49:08,788 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-13 17:49:08,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2022-12-13 17:49:08,982 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-13 17:49:08,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:49:08,983 INFO L85 PathProgramCache]: Analyzing trace with hash 1928543706, now seen corresponding path program 1 times [2022-12-13 17:49:08,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:49:08,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956727252] [2022-12-13 17:49:08,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:49:08,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:49:09,063 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 17:49:09,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1909403114] [2022-12-13 17:49:09,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:49:09,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:49:09,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:49:09,064 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:49:09,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-13 17:49:10,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:10,578 INFO L263 TraceCheckSpWp]: Trace formula consists of 2678 conjuncts, 56 conjunts are in the unsatisfiable core [2022-12-13 17:49:10,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:49:10,742 INFO L134 CoverageAnalysis]: Checked inductivity of 847 backedges. 326 proven. 3 refuted. 0 times theorem prover too weak. 518 trivial. 0 not checked. [2022-12-13 17:49:10,742 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 17:49:11,252 INFO L134 CoverageAnalysis]: Checked inductivity of 847 backedges. 39 proven. 15 refuted. 0 times theorem prover too weak. 793 trivial. 0 not checked. [2022-12-13 17:49:11,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:49:11,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956727252] [2022-12-13 17:49:11,252 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 17:49:11,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1909403114] [2022-12-13 17:49:11,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1909403114] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 17:49:11,253 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 17:49:11,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 22 [2022-12-13 17:49:11,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863119815] [2022-12-13 17:49:11,253 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 17:49:11,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-12-13 17:49:11,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:49:11,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-12-13 17:49:11,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2022-12-13 17:49:11,255 INFO L87 Difference]: Start difference. First operand 1980 states and 2538 transitions. Second operand has 22 states, 21 states have (on average 7.857142857142857) internal successors, (165), 18 states have internal predecessors, (165), 5 states have call successors, (70), 2 states have call predecessors, (70), 7 states have return successors, (71), 8 states have call predecessors, (71), 5 states have call successors, (71) [2022-12-13 17:49:12,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:49:12,082 INFO L93 Difference]: Finished difference Result 3690 states and 4786 transitions. [2022-12-13 17:49:12,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 17:49:12,083 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 7.857142857142857) internal successors, (165), 18 states have internal predecessors, (165), 5 states have call successors, (70), 2 states have call predecessors, (70), 7 states have return successors, (71), 8 states have call predecessors, (71), 5 states have call successors, (71) Word has length 388 [2022-12-13 17:49:12,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:49:12,087 INFO L225 Difference]: With dead ends: 3690 [2022-12-13 17:49:12,087 INFO L226 Difference]: Without dead ends: 2177 [2022-12-13 17:49:12,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 778 GetRequests, 754 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=76, Invalid=574, Unknown=0, NotChecked=0, Total=650 [2022-12-13 17:49:12,090 INFO L413 NwaCegarLoop]: 1080 mSDtfsCounter, 568 mSDsluCounter, 14644 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 669 SdHoareTripleChecker+Valid, 15724 SdHoareTripleChecker+Invalid, 572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 17:49:12,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [669 Valid, 15724 Invalid, 572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 471 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 17:49:12,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2177 states. [2022-12-13 17:49:12,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2177 to 1980. [2022-12-13 17:49:12,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1980 states, 1289 states have (on average 1.1466252909231962) internal successors, (1478), 1325 states have internal predecessors, (1478), 520 states have call successors, (520), 161 states have call predecessors, (520), 169 states have return successors, (538), 521 states have call predecessors, (538), 519 states have call successors, (538) [2022-12-13 17:49:12,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1980 states to 1980 states and 2536 transitions. [2022-12-13 17:49:12,389 INFO L78 Accepts]: Start accepts. Automaton has 1980 states and 2536 transitions. Word has length 388 [2022-12-13 17:49:12,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:49:12,389 INFO L495 AbstractCegarLoop]: Abstraction has 1980 states and 2536 transitions. [2022-12-13 17:49:12,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 7.857142857142857) internal successors, (165), 18 states have internal predecessors, (165), 5 states have call successors, (70), 2 states have call predecessors, (70), 7 states have return successors, (71), 8 states have call predecessors, (71), 5 states have call successors, (71) [2022-12-13 17:49:12,390 INFO L276 IsEmpty]: Start isEmpty. Operand 1980 states and 2536 transitions. [2022-12-13 17:49:12,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 382 [2022-12-13 17:49:12,392 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:49:12,392 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 8, 8, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:49:12,403 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-13 17:49:12,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2022-12-13 17:49:12,594 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-13 17:49:12,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:49:12,594 INFO L85 PathProgramCache]: Analyzing trace with hash 616795790, now seen corresponding path program 1 times [2022-12-13 17:49:12,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:49:12,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760584304] [2022-12-13 17:49:12,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:49:12,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:49:12,633 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 17:49:12,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [933723322] [2022-12-13 17:49:12,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:49:12,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:49:12,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:49:12,635 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:49:12,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-13 17:49:13,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:13,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 2656 conjuncts, 23 conjunts are in the unsatisfiable core [2022-12-13 17:49:13,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:49:13,588 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 85 proven. 205 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2022-12-13 17:49:13,588 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 17:49:13,989 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 690 trivial. 0 not checked. [2022-12-13 17:49:13,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:49:13,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760584304] [2022-12-13 17:49:13,989 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 17:49:13,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [933723322] [2022-12-13 17:49:13,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [933723322] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-13 17:49:13,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 17:49:13,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [9] total 17 [2022-12-13 17:49:13,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661193943] [2022-12-13 17:49:13,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:49:13,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 17:49:13,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:49:13,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 17:49:13,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2022-12-13 17:49:13,991 INFO L87 Difference]: Start difference. First operand 1980 states and 2536 transitions. Second operand has 10 states, 10 states have (on average 14.0) internal successors, (140), 10 states have internal predecessors, (140), 5 states have call successors, (50), 4 states have call predecessors, (50), 3 states have return successors, (49), 5 states have call predecessors, (49), 5 states have call successors, (49) [2022-12-13 17:49:17,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:49:17,538 INFO L93 Difference]: Finished difference Result 3337 states and 4242 transitions. [2022-12-13 17:49:17,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 17:49:17,538 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.0) internal successors, (140), 10 states have internal predecessors, (140), 5 states have call successors, (50), 4 states have call predecessors, (50), 3 states have return successors, (49), 5 states have call predecessors, (49), 5 states have call successors, (49) Word has length 381 [2022-12-13 17:49:17,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:49:17,544 INFO L225 Difference]: With dead ends: 3337 [2022-12-13 17:49:17,544 INFO L226 Difference]: Without dead ends: 3302 [2022-12-13 17:49:17,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 771 GetRequests, 748 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=486, Unknown=0, NotChecked=0, Total=600 [2022-12-13 17:49:17,545 INFO L413 NwaCegarLoop]: 601 mSDtfsCounter, 1993 mSDsluCounter, 2127 mSDsCounter, 0 mSdLazyCounter, 4189 mSolverCounterSat, 1400 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2080 SdHoareTripleChecker+Valid, 2728 SdHoareTripleChecker+Invalid, 5589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1400 IncrementalHoareTripleChecker+Valid, 4189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-12-13 17:49:17,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2080 Valid, 2728 Invalid, 5589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1400 Valid, 4189 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-12-13 17:49:17,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3302 states. [2022-12-13 17:49:18,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3302 to 3270. [2022-12-13 17:49:18,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3270 states, 2141 states have (on average 1.152732368052312) internal successors, (2468), 2194 states have internal predecessors, (2468), 839 states have call successors, (839), 275 states have call predecessors, (839), 288 states have return successors, (862), 842 states have call predecessors, (862), 838 states have call successors, (862) [2022-12-13 17:49:18,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3270 states to 3270 states and 4169 transitions. [2022-12-13 17:49:18,070 INFO L78 Accepts]: Start accepts. Automaton has 3270 states and 4169 transitions. Word has length 381 [2022-12-13 17:49:18,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:49:18,070 INFO L495 AbstractCegarLoop]: Abstraction has 3270 states and 4169 transitions. [2022-12-13 17:49:18,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.0) internal successors, (140), 10 states have internal predecessors, (140), 5 states have call successors, (50), 4 states have call predecessors, (50), 3 states have return successors, (49), 5 states have call predecessors, (49), 5 states have call successors, (49) [2022-12-13 17:49:18,071 INFO L276 IsEmpty]: Start isEmpty. Operand 3270 states and 4169 transitions. [2022-12-13 17:49:18,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2022-12-13 17:49:18,073 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:49:18,074 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 10, 10, 10, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:49:18,083 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-12-13 17:49:18,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2022-12-13 17:49:18,276 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-13 17:49:18,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:49:18,277 INFO L85 PathProgramCache]: Analyzing trace with hash -674483443, now seen corresponding path program 1 times [2022-12-13 17:49:18,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:49:18,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978582573] [2022-12-13 17:49:18,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:49:18,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:49:18,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:19,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 17:49:19,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:19,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 17:49:19,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:19,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 17:49:19,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:19,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-12-13 17:49:19,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:19,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:49:19,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:19,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 17:49:19,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:19,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 17:49:19,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:19,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-12-13 17:49:19,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:19,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 17:49:19,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:19,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:49:19,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:19,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 17:49:19,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:19,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 17:49:19,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:19,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-12-13 17:49:19,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:19,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:49:19,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:19,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 17:49:19,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:19,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 17:49:19,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:19,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-12-13 17:49:19,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:19,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 17:49:19,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:19,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 17:49:19,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:19,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-12-13 17:49:19,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:19,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:49:19,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:19,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:49:19,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:19,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 17:49:19,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:19,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:49:19,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:19,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-12-13 17:49:19,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:19,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-12-13 17:49:19,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:19,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-12-13 17:49:19,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:19,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-12-13 17:49:19,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:19,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:49:19,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:19,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-12-13 17:49:19,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:19,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-12-13 17:49:19,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:19,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-12-13 17:49:19,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:19,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-12-13 17:49:19,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:19,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-12-13 17:49:19,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:19,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-12-13 17:49:19,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:19,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2022-12-13 17:49:19,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:19,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-12-13 17:49:19,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:19,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2022-12-13 17:49:19,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:19,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-12-13 17:49:19,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:19,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-12-13 17:49:19,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:19,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-12-13 17:49:19,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:19,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-12-13 17:49:19,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:19,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-12-13 17:49:19,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:19,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2022-12-13 17:49:19,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:19,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-12-13 17:49:19,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:19,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2022-12-13 17:49:19,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:19,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-12-13 17:49:19,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:19,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2022-12-13 17:49:19,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:19,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-12-13 17:49:19,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:19,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-12-13 17:49:19,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:19,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:49:19,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:19,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 17:49:19,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:19,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 17:49:19,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:19,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 17:49:19,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:19,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:49:19,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:19,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:49:19,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:19,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 17:49:19,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:19,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-12-13 17:49:19,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:19,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-12-13 17:49:19,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:19,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2022-12-13 17:49:19,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:19,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:49:19,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:19,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 17:49:19,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:19,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 17:49:19,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:19,439 INFO L134 CoverageAnalysis]: Checked inductivity of 960 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 933 trivial. 0 not checked. [2022-12-13 17:49:19,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:49:19,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978582573] [2022-12-13 17:49:19,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978582573] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:49:19,439 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:49:19,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-12-13 17:49:19,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269896174] [2022-12-13 17:49:19,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:49:19,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-12-13 17:49:19,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:49:19,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-12-13 17:49:19,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=340, Unknown=0, NotChecked=0, Total=380 [2022-12-13 17:49:19,441 INFO L87 Difference]: Start difference. First operand 3270 states and 4169 transitions. Second operand has 20 states, 19 states have (on average 8.157894736842104) internal successors, (155), 14 states have internal predecessors, (155), 6 states have call successors, (60), 7 states have call predecessors, (60), 3 states have return successors, (57), 6 states have call predecessors, (57), 6 states have call successors, (57) [2022-12-13 17:49:26,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:49:26,449 INFO L93 Difference]: Finished difference Result 6903 states and 9264 transitions. [2022-12-13 17:49:26,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-12-13 17:49:26,449 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 8.157894736842104) internal successors, (155), 14 states have internal predecessors, (155), 6 states have call successors, (60), 7 states have call predecessors, (60), 3 states have return successors, (57), 6 states have call predecessors, (57), 6 states have call successors, (57) Word has length 380 [2022-12-13 17:49:26,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:49:26,457 INFO L225 Difference]: With dead ends: 6903 [2022-12-13 17:49:26,457 INFO L226 Difference]: Without dead ends: 5192 [2022-12-13 17:49:26,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=294, Invalid=1598, Unknown=0, NotChecked=0, Total=1892 [2022-12-13 17:49:26,461 INFO L413 NwaCegarLoop]: 1049 mSDtfsCounter, 2575 mSDsluCounter, 9781 mSDsCounter, 0 mSdLazyCounter, 11938 mSolverCounterSat, 2350 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2687 SdHoareTripleChecker+Valid, 10830 SdHoareTripleChecker+Invalid, 14288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2350 IncrementalHoareTripleChecker+Valid, 11938 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-12-13 17:49:26,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2687 Valid, 10830 Invalid, 14288 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2350 Valid, 11938 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-12-13 17:49:26,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5192 states. [2022-12-13 17:49:27,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5192 to 3455. [2022-12-13 17:49:27,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3455 states, 2259 states have (on average 1.1518370960602036) internal successors, (2602), 2308 states have internal predecessors, (2602), 906 states have call successors, (906), 275 states have call predecessors, (906), 288 states have return successors, (929), 906 states have call predecessors, (929), 905 states have call successors, (929) [2022-12-13 17:49:27,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3455 states to 3455 states and 4437 transitions. [2022-12-13 17:49:27,109 INFO L78 Accepts]: Start accepts. Automaton has 3455 states and 4437 transitions. Word has length 380 [2022-12-13 17:49:27,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:49:27,110 INFO L495 AbstractCegarLoop]: Abstraction has 3455 states and 4437 transitions. [2022-12-13 17:49:27,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 8.157894736842104) internal successors, (155), 14 states have internal predecessors, (155), 6 states have call successors, (60), 7 states have call predecessors, (60), 3 states have return successors, (57), 6 states have call predecessors, (57), 6 states have call successors, (57) [2022-12-13 17:49:27,110 INFO L276 IsEmpty]: Start isEmpty. Operand 3455 states and 4437 transitions. [2022-12-13 17:49:27,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2022-12-13 17:49:27,113 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:49:27,114 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 14, 14, 14, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:49:27,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-12-13 17:49:27,114 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-13 17:49:27,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:49:27,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1733853305, now seen corresponding path program 1 times [2022-12-13 17:49:27,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:49:27,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949485612] [2022-12-13 17:49:27,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:49:27,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:49:27,166 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 17:49:27,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [770101150] [2022-12-13 17:49:27,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:49:27,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:49:27,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:49:27,168 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:49:27,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-13 17:49:27,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:27,806 INFO L263 TraceCheckSpWp]: Trace formula consists of 3212 conjuncts, 42 conjunts are in the unsatisfiable core [2022-12-13 17:49:27,812 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:49:27,922 INFO L134 CoverageAnalysis]: Checked inductivity of 1227 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 1173 trivial. 0 not checked. [2022-12-13 17:49:27,922 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:49:27,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:49:27,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949485612] [2022-12-13 17:49:27,922 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 17:49:27,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [770101150] [2022-12-13 17:49:27,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [770101150] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:49:27,922 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:49:27,923 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-12-13 17:49:27,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871503838] [2022-12-13 17:49:27,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:49:27,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-13 17:49:27,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:49:27,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-13 17:49:27,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2022-12-13 17:49:27,924 INFO L87 Difference]: Start difference. First operand 3455 states and 4437 transitions. Second operand has 15 states, 14 states have (on average 12.0) internal successors, (168), 14 states have internal predecessors, (168), 7 states have call successors, (66), 2 states have call predecessors, (66), 4 states have return successors, (64), 7 states have call predecessors, (64), 7 states have call successors, (64) [2022-12-13 17:49:29,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:49:29,945 INFO L93 Difference]: Finished difference Result 5965 states and 7921 transitions. [2022-12-13 17:49:29,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-13 17:49:29,945 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 12.0) internal successors, (168), 14 states have internal predecessors, (168), 7 states have call successors, (66), 2 states have call predecessors, (66), 4 states have return successors, (64), 7 states have call predecessors, (64), 7 states have call successors, (64) Word has length 471 [2022-12-13 17:49:29,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:49:29,954 INFO L225 Difference]: With dead ends: 5965 [2022-12-13 17:49:29,954 INFO L226 Difference]: Without dead ends: 4206 [2022-12-13 17:49:29,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 488 GetRequests, 459 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=185, Invalid=745, Unknown=0, NotChecked=0, Total=930 [2022-12-13 17:49:29,961 INFO L413 NwaCegarLoop]: 1450 mSDtfsCounter, 1414 mSDsluCounter, 16828 mSDsCounter, 0 mSdLazyCounter, 701 mSolverCounterSat, 578 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1502 SdHoareTripleChecker+Valid, 18278 SdHoareTripleChecker+Invalid, 1279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 578 IncrementalHoareTripleChecker+Valid, 701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-13 17:49:29,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1502 Valid, 18278 Invalid, 1279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [578 Valid, 701 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-13 17:49:29,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4206 states. [2022-12-13 17:49:30,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4206 to 2692. [2022-12-13 17:49:30,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2692 states, 1779 states have (on average 1.1540191118605958) internal successors, (2053), 1823 states have internal predecessors, (2053), 679 states have call successors, (679), 217 states have call predecessors, (679), 232 states have return successors, (702), 689 states have call predecessors, (702), 678 states have call successors, (702) [2022-12-13 17:49:30,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2692 states to 2692 states and 3434 transitions. [2022-12-13 17:49:30,520 INFO L78 Accepts]: Start accepts. Automaton has 2692 states and 3434 transitions. Word has length 471 [2022-12-13 17:49:30,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:49:30,520 INFO L495 AbstractCegarLoop]: Abstraction has 2692 states and 3434 transitions. [2022-12-13 17:49:30,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 12.0) internal successors, (168), 14 states have internal predecessors, (168), 7 states have call successors, (66), 2 states have call predecessors, (66), 4 states have return successors, (64), 7 states have call predecessors, (64), 7 states have call successors, (64) [2022-12-13 17:49:30,520 INFO L276 IsEmpty]: Start isEmpty. Operand 2692 states and 3434 transitions. [2022-12-13 17:49:30,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 506 [2022-12-13 17:49:30,523 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:49:30,523 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 10, 10, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:49:30,532 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-12-13 17:49:30,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2022-12-13 17:49:30,725 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-13 17:49:30,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:49:30,727 INFO L85 PathProgramCache]: Analyzing trace with hash 365948377, now seen corresponding path program 1 times [2022-12-13 17:49:30,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:49:30,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894246192] [2022-12-13 17:49:30,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:49:30,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:49:30,820 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 17:49:30,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [886021996] [2022-12-13 17:49:30,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:49:30,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:49:30,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:49:30,822 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:49:30,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-12-13 17:49:31,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:31,414 INFO L263 TraceCheckSpWp]: Trace formula consists of 3357 conjuncts, 21 conjunts are in the unsatisfiable core [2022-12-13 17:49:31,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:49:32,027 INFO L134 CoverageAnalysis]: Checked inductivity of 1307 backedges. 158 proven. 667 refuted. 0 times theorem prover too weak. 482 trivial. 0 not checked. [2022-12-13 17:49:32,027 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 17:49:32,580 INFO L134 CoverageAnalysis]: Checked inductivity of 1307 backedges. 30 proven. 1 refuted. 0 times theorem prover too weak. 1276 trivial. 0 not checked. [2022-12-13 17:49:32,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:49:32,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894246192] [2022-12-13 17:49:32,580 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 17:49:32,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [886021996] [2022-12-13 17:49:32,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [886021996] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 17:49:32,580 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 17:49:32,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 22 [2022-12-13 17:49:32,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110899645] [2022-12-13 17:49:32,581 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 17:49:32,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-12-13 17:49:32,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:49:32,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-12-13 17:49:32,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=339, Unknown=0, NotChecked=0, Total=462 [2022-12-13 17:49:32,584 INFO L87 Difference]: Start difference. First operand 2692 states and 3434 transitions. Second operand has 22 states, 22 states have (on average 13.136363636363637) internal successors, (289), 22 states have internal predecessors, (289), 12 states have call successors, (106), 11 states have call predecessors, (106), 12 states have return successors, (107), 12 states have call predecessors, (107), 12 states have call successors, (107) [2022-12-13 17:49:38,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:49:38,014 INFO L93 Difference]: Finished difference Result 3790 states and 4827 transitions. [2022-12-13 17:49:38,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-13 17:49:38,015 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 13.136363636363637) internal successors, (289), 22 states have internal predecessors, (289), 12 states have call successors, (106), 11 states have call predecessors, (106), 12 states have return successors, (107), 12 states have call predecessors, (107), 12 states have call successors, (107) Word has length 505 [2022-12-13 17:49:38,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:49:38,024 INFO L225 Difference]: With dead ends: 3790 [2022-12-13 17:49:38,024 INFO L226 Difference]: Without dead ends: 3788 [2022-12-13 17:49:38,025 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1019 GetRequests, 986 SyntacticMatches, 4 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=267, Invalid=663, Unknown=0, NotChecked=0, Total=930 [2022-12-13 17:49:38,026 INFO L413 NwaCegarLoop]: 640 mSDtfsCounter, 5505 mSDsluCounter, 3493 mSDsCounter, 0 mSdLazyCounter, 6012 mSolverCounterSat, 3997 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5809 SdHoareTripleChecker+Valid, 4133 SdHoareTripleChecker+Invalid, 10009 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3997 IncrementalHoareTripleChecker+Valid, 6012 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-12-13 17:49:38,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5809 Valid, 4133 Invalid, 10009 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3997 Valid, 6012 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-12-13 17:49:38,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3788 states. [2022-12-13 17:49:38,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3788 to 3748. [2022-12-13 17:49:38,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3748 states, 2466 states have (on average 1.1484184914841848) internal successors, (2832), 2528 states have internal predecessors, (2832), 959 states have call successors, (959), 300 states have call predecessors, (959), 321 states have return successors, (994), 971 states have call predecessors, (994), 958 states have call successors, (994) [2022-12-13 17:49:38,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3748 states to 3748 states and 4785 transitions. [2022-12-13 17:49:38,895 INFO L78 Accepts]: Start accepts. Automaton has 3748 states and 4785 transitions. Word has length 505 [2022-12-13 17:49:38,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:49:38,896 INFO L495 AbstractCegarLoop]: Abstraction has 3748 states and 4785 transitions. [2022-12-13 17:49:38,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 13.136363636363637) internal successors, (289), 22 states have internal predecessors, (289), 12 states have call successors, (106), 11 states have call predecessors, (106), 12 states have return successors, (107), 12 states have call predecessors, (107), 12 states have call successors, (107) [2022-12-13 17:49:38,896 INFO L276 IsEmpty]: Start isEmpty. Operand 3748 states and 4785 transitions. [2022-12-13 17:49:38,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 523 [2022-12-13 17:49:38,901 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:49:38,902 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 10, 10, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:49:38,911 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-12-13 17:49:39,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:49:39,103 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-13 17:49:39,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:49:39,104 INFO L85 PathProgramCache]: Analyzing trace with hash 747170468, now seen corresponding path program 1 times [2022-12-13 17:49:39,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:49:39,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984576594] [2022-12-13 17:49:39,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:49:39,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:49:39,203 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 17:49:39,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1317898744] [2022-12-13 17:49:39,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:49:39,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:49:39,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:49:39,204 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:49:39,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-12-13 17:49:39,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:39,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 3813 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 17:49:39,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:49:39,913 INFO L134 CoverageAnalysis]: Checked inductivity of 912 backedges. 367 proven. 0 refuted. 0 times theorem prover too weak. 545 trivial. 0 not checked. [2022-12-13 17:49:39,913 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:49:39,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:49:39,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984576594] [2022-12-13 17:49:39,913 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 17:49:39,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1317898744] [2022-12-13 17:49:39,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1317898744] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:49:39,914 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:49:39,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 17:49:39,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089705267] [2022-12-13 17:49:39,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:49:39,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 17:49:39,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:49:39,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 17:49:39,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 17:49:39,916 INFO L87 Difference]: Start difference. First operand 3748 states and 4785 transitions. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 2 states have call successors, (73), 2 states have call predecessors, (73), 2 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) [2022-12-13 17:49:41,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:49:41,024 INFO L93 Difference]: Finished difference Result 7500 states and 9651 transitions. [2022-12-13 17:49:41,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 17:49:41,026 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 2 states have call successors, (73), 2 states have call predecessors, (73), 2 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) Word has length 522 [2022-12-13 17:49:41,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:49:41,033 INFO L225 Difference]: With dead ends: 7500 [2022-12-13 17:49:41,033 INFO L226 Difference]: Without dead ends: 4094 [2022-12-13 17:49:41,038 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 521 GetRequests, 520 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 17:49:41,038 INFO L413 NwaCegarLoop]: 1064 mSDtfsCounter, 74 mSDsluCounter, 976 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 2040 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 17:49:41,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 2040 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 17:49:41,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4094 states. [2022-12-13 17:49:41,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4094 to 3763. [2022-12-13 17:49:41,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3763 states, 2481 states have (on average 1.147521160822249) internal successors, (2847), 2543 states have internal predecessors, (2847), 959 states have call successors, (959), 300 states have call predecessors, (959), 321 states have return successors, (994), 971 states have call predecessors, (994), 958 states have call successors, (994) [2022-12-13 17:49:41,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3763 states to 3763 states and 4800 transitions. [2022-12-13 17:49:41,826 INFO L78 Accepts]: Start accepts. Automaton has 3763 states and 4800 transitions. Word has length 522 [2022-12-13 17:49:41,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:49:41,826 INFO L495 AbstractCegarLoop]: Abstraction has 3763 states and 4800 transitions. [2022-12-13 17:49:41,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 2 states have call successors, (73), 2 states have call predecessors, (73), 2 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) [2022-12-13 17:49:41,826 INFO L276 IsEmpty]: Start isEmpty. Operand 3763 states and 4800 transitions. [2022-12-13 17:49:41,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 698 [2022-12-13 17:49:41,831 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:49:41,831 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 13, 13, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:49:41,840 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-12-13 17:49:42,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2022-12-13 17:49:42,033 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-13 17:49:42,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:49:42,034 INFO L85 PathProgramCache]: Analyzing trace with hash -1298477358, now seen corresponding path program 1 times [2022-12-13 17:49:42,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:49:42,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446233379] [2022-12-13 17:49:42,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:49:42,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:49:42,135 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 17:49:42,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1043475231] [2022-12-13 17:49:42,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:49:42,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:49:42,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:49:42,137 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:49:42,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-12-13 17:49:43,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:43,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 4716 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 17:49:43,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:49:43,513 INFO L134 CoverageAnalysis]: Checked inductivity of 1440 backedges. 321 proven. 0 refuted. 0 times theorem prover too weak. 1119 trivial. 0 not checked. [2022-12-13 17:49:43,513 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:49:43,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:49:43,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446233379] [2022-12-13 17:49:43,513 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 17:49:43,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1043475231] [2022-12-13 17:49:43,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1043475231] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:49:43,513 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:49:43,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 17:49:43,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740413869] [2022-12-13 17:49:43,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:49:43,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 17:49:43,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:49:43,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 17:49:43,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 17:49:43,516 INFO L87 Difference]: Start difference. First operand 3763 states and 4800 transitions. Second operand has 3 states, 3 states have (on average 75.0) internal successors, (225), 2 states have internal predecessors, (225), 2 states have call successors, (82), 2 states have call predecessors, (82), 2 states have return successors, (81), 2 states have call predecessors, (81), 2 states have call successors, (81) [2022-12-13 17:49:44,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:49:44,421 INFO L93 Difference]: Finished difference Result 7100 states and 9075 transitions. [2022-12-13 17:49:44,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 17:49:44,422 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 75.0) internal successors, (225), 2 states have internal predecessors, (225), 2 states have call successors, (82), 2 states have call predecessors, (82), 2 states have return successors, (81), 2 states have call predecessors, (81), 2 states have call successors, (81) Word has length 697 [2022-12-13 17:49:44,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:49:44,429 INFO L225 Difference]: With dead ends: 7100 [2022-12-13 17:49:44,429 INFO L226 Difference]: Without dead ends: 3753 [2022-12-13 17:49:44,434 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 696 GetRequests, 695 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 17:49:44,435 INFO L413 NwaCegarLoop]: 974 mSDtfsCounter, 686 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 686 SdHoareTripleChecker+Valid, 974 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 17:49:44,435 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [686 Valid, 974 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 17:49:44,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3753 states. [2022-12-13 17:49:45,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3753 to 3753. [2022-12-13 17:49:45,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3753 states, 2476 states have (on average 1.1437802907915993) internal successors, (2832), 2538 states have internal predecessors, (2832), 954 states have call successors, (954), 300 states have call predecessors, (954), 321 states have return successors, (989), 966 states have call predecessors, (989), 953 states have call successors, (989) [2022-12-13 17:49:45,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3753 states to 3753 states and 4775 transitions. [2022-12-13 17:49:45,209 INFO L78 Accepts]: Start accepts. Automaton has 3753 states and 4775 transitions. Word has length 697 [2022-12-13 17:49:45,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:49:45,209 INFO L495 AbstractCegarLoop]: Abstraction has 3753 states and 4775 transitions. [2022-12-13 17:49:45,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.0) internal successors, (225), 2 states have internal predecessors, (225), 2 states have call successors, (82), 2 states have call predecessors, (82), 2 states have return successors, (81), 2 states have call predecessors, (81), 2 states have call successors, (81) [2022-12-13 17:49:45,209 INFO L276 IsEmpty]: Start isEmpty. Operand 3753 states and 4775 transitions. [2022-12-13 17:49:45,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 729 [2022-12-13 17:49:45,214 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:49:45,214 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 13, 13, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:49:45,226 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-12-13 17:49:45,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2022-12-13 17:49:45,416 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-13 17:49:45,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:49:45,417 INFO L85 PathProgramCache]: Analyzing trace with hash 904689775, now seen corresponding path program 1 times [2022-12-13 17:49:45,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:49:45,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242939817] [2022-12-13 17:49:45,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:49:45,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:49:45,518 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 17:49:45,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [432471171] [2022-12-13 17:49:45,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:49:45,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:49:45,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:49:45,519 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:49:45,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-12-13 17:49:46,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:46,342 INFO L263 TraceCheckSpWp]: Trace formula consists of 4828 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 17:49:46,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:49:46,374 INFO L134 CoverageAnalysis]: Checked inductivity of 1622 backedges. 699 proven. 1 refuted. 0 times theorem prover too weak. 922 trivial. 0 not checked. [2022-12-13 17:49:46,374 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 17:49:46,656 INFO L134 CoverageAnalysis]: Checked inductivity of 1622 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1618 trivial. 0 not checked. [2022-12-13 17:49:46,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:49:46,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242939817] [2022-12-13 17:49:46,657 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 17:49:46,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [432471171] [2022-12-13 17:49:46,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [432471171] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 17:49:46,657 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 17:49:46,658 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-12-13 17:49:46,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104950324] [2022-12-13 17:49:46,658 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 17:49:46,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 17:49:46,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:49:46,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 17:49:46,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:49:46,661 INFO L87 Difference]: Start difference. First operand 3753 states and 4775 transitions. Second operand has 6 states, 6 states have (on average 45.5) internal successors, (273), 6 states have internal predecessors, (273), 4 states have call successors, (124), 2 states have call predecessors, (124), 2 states have return successors, (123), 4 states have call predecessors, (123), 4 states have call successors, (123) [2022-12-13 17:49:48,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:49:48,452 INFO L93 Difference]: Finished difference Result 8330 states and 10818 transitions. [2022-12-13 17:49:48,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 17:49:48,453 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 45.5) internal successors, (273), 6 states have internal predecessors, (273), 4 states have call successors, (124), 2 states have call predecessors, (124), 2 states have return successors, (123), 4 states have call predecessors, (123), 4 states have call successors, (123) Word has length 728 [2022-12-13 17:49:48,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:49:48,462 INFO L225 Difference]: With dead ends: 8330 [2022-12-13 17:49:48,462 INFO L226 Difference]: Without dead ends: 4920 [2022-12-13 17:49:48,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1454 GetRequests, 1450 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:49:48,467 INFO L413 NwaCegarLoop]: 1140 mSDtfsCounter, 436 mSDsluCounter, 1927 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 588 SdHoareTripleChecker+Valid, 3067 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 17:49:48,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [588 Valid, 3067 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 17:49:48,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4920 states. [2022-12-13 17:49:49,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4920 to 4053. [2022-12-13 17:49:49,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4053 states, 2686 states have (on average 1.1492926284437825) internal successors, (3087), 2748 states have internal predecessors, (3087), 1044 states have call successors, (1044), 300 states have call predecessors, (1044), 321 states have return successors, (1079), 1056 states have call predecessors, (1079), 1043 states have call successors, (1079) [2022-12-13 17:49:49,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4053 states to 4053 states and 5210 transitions. [2022-12-13 17:49:49,508 INFO L78 Accepts]: Start accepts. Automaton has 4053 states and 5210 transitions. Word has length 728 [2022-12-13 17:49:49,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:49:49,508 INFO L495 AbstractCegarLoop]: Abstraction has 4053 states and 5210 transitions. [2022-12-13 17:49:49,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 45.5) internal successors, (273), 6 states have internal predecessors, (273), 4 states have call successors, (124), 2 states have call predecessors, (124), 2 states have return successors, (123), 4 states have call predecessors, (123), 4 states have call successors, (123) [2022-12-13 17:49:49,509 INFO L276 IsEmpty]: Start isEmpty. Operand 4053 states and 5210 transitions. [2022-12-13 17:49:49,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1068 [2022-12-13 17:49:49,520 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:49:49,521 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 19, 19, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 7, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:49:49,532 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-12-13 17:49:49,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:49:49,722 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-13 17:49:49,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:49:49,725 INFO L85 PathProgramCache]: Analyzing trace with hash 179842715, now seen corresponding path program 1 times [2022-12-13 17:49:49,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:49:49,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171368567] [2022-12-13 17:49:49,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:49:49,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:49:49,865 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 17:49:49,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1223043161] [2022-12-13 17:49:49,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:49:49,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:49:49,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:49:49,866 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:49:49,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-12-13 17:49:50,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:50,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 6558 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 17:49:50,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:49:51,052 INFO L134 CoverageAnalysis]: Checked inductivity of 3926 backedges. 1836 proven. 64 refuted. 0 times theorem prover too weak. 2026 trivial. 0 not checked. [2022-12-13 17:49:51,052 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 17:49:51,573 INFO L134 CoverageAnalysis]: Checked inductivity of 3926 backedges. 3 proven. 64 refuted. 0 times theorem prover too weak. 3859 trivial. 0 not checked. [2022-12-13 17:49:51,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:49:51,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171368567] [2022-12-13 17:49:51,573 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 17:49:51,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1223043161] [2022-12-13 17:49:51,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1223043161] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 17:49:51,574 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 17:49:51,574 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2022-12-13 17:49:51,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778421735] [2022-12-13 17:49:51,575 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 17:49:51,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 17:49:51,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:49:51,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 17:49:51,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2022-12-13 17:49:51,577 INFO L87 Difference]: Start difference. First operand 4053 states and 5210 transitions. Second operand has 10 states, 10 states have (on average 30.9) internal successors, (309), 10 states have internal predecessors, (309), 9 states have call successors, (139), 2 states have call predecessors, (139), 2 states have return successors, (138), 9 states have call predecessors, (138), 9 states have call successors, (138) [2022-12-13 17:49:54,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:49:54,493 INFO L93 Difference]: Finished difference Result 9964 states and 13189 transitions. [2022-12-13 17:49:54,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 17:49:54,494 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 30.9) internal successors, (309), 10 states have internal predecessors, (309), 9 states have call successors, (139), 2 states have call predecessors, (139), 2 states have return successors, (138), 9 states have call predecessors, (138), 9 states have call successors, (138) Word has length 1067 [2022-12-13 17:49:54,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:49:54,504 INFO L225 Difference]: With dead ends: 9964 [2022-12-13 17:49:54,504 INFO L226 Difference]: Without dead ends: 6284 [2022-12-13 17:49:54,509 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2132 GetRequests, 2122 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2022-12-13 17:49:54,510 INFO L413 NwaCegarLoop]: 1264 mSDtfsCounter, 1094 mSDsluCounter, 2998 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 290 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1355 SdHoareTripleChecker+Valid, 4262 SdHoareTripleChecker+Invalid, 829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 290 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-13 17:49:54,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1355 Valid, 4262 Invalid, 829 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [290 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-13 17:49:54,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6284 states. [2022-12-13 17:49:55,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6284 to 4453. [2022-12-13 17:49:55,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4453 states, 2966 states have (on average 1.155428186109238) internal successors, (3427), 3028 states have internal predecessors, (3427), 1164 states have call successors, (1164), 300 states have call predecessors, (1164), 321 states have return successors, (1199), 1176 states have call predecessors, (1199), 1163 states have call successors, (1199) [2022-12-13 17:49:55,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4453 states to 4453 states and 5790 transitions. [2022-12-13 17:49:55,895 INFO L78 Accepts]: Start accepts. Automaton has 4453 states and 5790 transitions. Word has length 1067 [2022-12-13 17:49:55,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:49:55,895 INFO L495 AbstractCegarLoop]: Abstraction has 4453 states and 5790 transitions. [2022-12-13 17:49:55,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 30.9) internal successors, (309), 10 states have internal predecessors, (309), 9 states have call successors, (139), 2 states have call predecessors, (139), 2 states have return successors, (138), 9 states have call predecessors, (138), 9 states have call successors, (138) [2022-12-13 17:49:55,896 INFO L276 IsEmpty]: Start isEmpty. Operand 4453 states and 5790 transitions. [2022-12-13 17:49:55,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1499 [2022-12-13 17:49:55,910 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:49:55,910 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 13, 13, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:49:55,924 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2022-12-13 17:49:56,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:49:56,112 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-13 17:49:56,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:49:56,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1575978054, now seen corresponding path program 1 times [2022-12-13 17:49:56,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:49:56,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185352783] [2022-12-13 17:49:56,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:49:56,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:49:56,296 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 17:49:56,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1185865043] [2022-12-13 17:49:56,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:49:56,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:49:56,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:49:56,297 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:49:56,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-12-13 17:49:57,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:49:57,519 INFO L263 TraceCheckSpWp]: Trace formula consists of 8778 conjuncts, 27 conjunts are in the unsatisfiable core [2022-12-13 17:49:57,533 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:49:57,566 INFO L134 CoverageAnalysis]: Checked inductivity of 9619 backedges. 1480 proven. 0 refuted. 0 times theorem prover too weak. 8139 trivial. 0 not checked. [2022-12-13 17:49:57,566 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:49:57,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:49:57,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185352783] [2022-12-13 17:49:57,567 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 17:49:57,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1185865043] [2022-12-13 17:49:57,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1185865043] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:49:57,567 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:49:57,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 17:49:57,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539508984] [2022-12-13 17:49:57,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:49:57,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 17:49:57,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:49:57,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 17:49:57,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 17:49:57,568 INFO L87 Difference]: Start difference. First operand 4453 states and 5790 transitions. Second operand has 4 states, 4 states have (on average 62.0) internal successors, (248), 4 states have internal predecessors, (248), 2 states have call successors, (85), 2 states have call predecessors, (85), 2 states have return successors, (84), 2 states have call predecessors, (84), 2 states have call successors, (84) [2022-12-13 17:49:58,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:49:58,883 INFO L93 Difference]: Finished difference Result 8957 states and 11710 transitions. [2022-12-13 17:49:58,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 17:49:58,884 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 62.0) internal successors, (248), 4 states have internal predecessors, (248), 2 states have call successors, (85), 2 states have call predecessors, (85), 2 states have return successors, (84), 2 states have call predecessors, (84), 2 states have call successors, (84) Word has length 1498 [2022-12-13 17:49:58,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:49:58,892 INFO L225 Difference]: With dead ends: 8957 [2022-12-13 17:49:58,892 INFO L226 Difference]: Without dead ends: 4830 [2022-12-13 17:49:58,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1499 GetRequests, 1496 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 17:49:58,897 INFO L413 NwaCegarLoop]: 1145 mSDtfsCounter, 125 mSDsluCounter, 2031 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 3176 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 17:49:58,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 3176 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 17:49:58,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4830 states. [2022-12-13 17:49:59,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4830 to 4461. [2022-12-13 17:49:59,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4461 states, 2974 states have (on average 1.1550100874243443) internal successors, (3435), 3036 states have internal predecessors, (3435), 1164 states have call successors, (1164), 300 states have call predecessors, (1164), 321 states have return successors, (1199), 1176 states have call predecessors, (1199), 1163 states have call successors, (1199) [2022-12-13 17:49:59,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4461 states to 4461 states and 5798 transitions. [2022-12-13 17:49:59,863 INFO L78 Accepts]: Start accepts. Automaton has 4461 states and 5798 transitions. Word has length 1498 [2022-12-13 17:49:59,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:49:59,863 INFO L495 AbstractCegarLoop]: Abstraction has 4461 states and 5798 transitions. [2022-12-13 17:49:59,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 62.0) internal successors, (248), 4 states have internal predecessors, (248), 2 states have call successors, (85), 2 states have call predecessors, (85), 2 states have return successors, (84), 2 states have call predecessors, (84), 2 states have call successors, (84) [2022-12-13 17:49:59,864 INFO L276 IsEmpty]: Start isEmpty. Operand 4461 states and 5798 transitions. [2022-12-13 17:49:59,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1519 [2022-12-13 17:49:59,878 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:49:59,878 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 13, 13, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:49:59,898 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-12-13 17:50:00,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2022-12-13 17:50:00,080 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-13 17:50:00,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:50:00,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1656686848, now seen corresponding path program 1 times [2022-12-13 17:50:00,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:50:00,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099437025] [2022-12-13 17:50:00,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:50:00,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:50:00,249 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 17:50:00,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1932155770] [2022-12-13 17:50:00,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:50:00,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:50:00,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:50:00,250 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:50:00,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-12-13 17:50:01,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:50:01,557 INFO L263 TraceCheckSpWp]: Trace formula consists of 8861 conjuncts, 27 conjunts are in the unsatisfiable core [2022-12-13 17:50:01,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:50:01,628 INFO L134 CoverageAnalysis]: Checked inductivity of 9673 backedges. 1552 proven. 0 refuted. 0 times theorem prover too weak. 8121 trivial. 0 not checked. [2022-12-13 17:50:01,629 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:50:01,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:50:01,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099437025] [2022-12-13 17:50:01,629 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 17:50:01,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1932155770] [2022-12-13 17:50:01,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1932155770] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:50:01,629 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:50:01,629 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 17:50:01,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470077440] [2022-12-13 17:50:01,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:50:01,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 17:50:01,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:50:01,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 17:50:01,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-13 17:50:01,631 INFO L87 Difference]: Start difference. First operand 4461 states and 5798 transitions. Second operand has 8 states, 8 states have (on average 32.125) internal successors, (257), 7 states have internal predecessors, (257), 2 states have call successors, (89), 2 states have call predecessors, (89), 3 states have return successors, (88), 3 states have call predecessors, (88), 2 states have call successors, (88) [2022-12-13 17:50:03,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:50:03,178 INFO L93 Difference]: Finished difference Result 9134 states and 11964 transitions. [2022-12-13 17:50:03,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 17:50:03,179 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 32.125) internal successors, (257), 7 states have internal predecessors, (257), 2 states have call successors, (89), 2 states have call predecessors, (89), 3 states have return successors, (88), 3 states have call predecessors, (88), 2 states have call successors, (88) Word has length 1518 [2022-12-13 17:50:03,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:50:03,189 INFO L225 Difference]: With dead ends: 9134 [2022-12-13 17:50:03,189 INFO L226 Difference]: Without dead ends: 4989 [2022-12-13 17:50:03,194 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1524 GetRequests, 1514 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-12-13 17:50:03,194 INFO L413 NwaCegarLoop]: 1116 mSDtfsCounter, 353 mSDsluCounter, 6428 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 381 SdHoareTripleChecker+Valid, 7544 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 17:50:03,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [381 Valid, 7544 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 17:50:03,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4989 states. [2022-12-13 17:50:04,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4989 to 4472. [2022-12-13 17:50:04,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4472 states, 2985 states have (on average 1.1544388609715244) internal successors, (3446), 3048 states have internal predecessors, (3446), 1164 states have call successors, (1164), 300 states have call predecessors, (1164), 321 states have return successors, (1199), 1175 states have call predecessors, (1199), 1163 states have call successors, (1199) [2022-12-13 17:50:04,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4472 states to 4472 states and 5809 transitions. [2022-12-13 17:50:04,173 INFO L78 Accepts]: Start accepts. Automaton has 4472 states and 5809 transitions. Word has length 1518 [2022-12-13 17:50:04,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:50:04,173 INFO L495 AbstractCegarLoop]: Abstraction has 4472 states and 5809 transitions. [2022-12-13 17:50:04,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 32.125) internal successors, (257), 7 states have internal predecessors, (257), 2 states have call successors, (89), 2 states have call predecessors, (89), 3 states have return successors, (88), 3 states have call predecessors, (88), 2 states have call successors, (88) [2022-12-13 17:50:04,174 INFO L276 IsEmpty]: Start isEmpty. Operand 4472 states and 5809 transitions. [2022-12-13 17:50:04,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1575 [2022-12-13 17:50:04,189 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:50:04,189 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 13, 13, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:50:04,210 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2022-12-13 17:50:04,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:50:04,391 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-13 17:50:04,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:50:04,393 INFO L85 PathProgramCache]: Analyzing trace with hash 1568323552, now seen corresponding path program 1 times [2022-12-13 17:50:04,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:50:04,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481942556] [2022-12-13 17:50:04,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:50:04,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:50:04,543 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 17:50:04,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2052205246] [2022-12-13 17:50:04,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:50:04,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:50:04,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:50:04,545 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:50:04,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-12-13 17:50:06,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:50:06,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 9181 conjuncts, 39 conjunts are in the unsatisfiable core [2022-12-13 17:50:06,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:50:06,385 INFO L134 CoverageAnalysis]: Checked inductivity of 10036 backedges. 377 proven. 0 refuted. 0 times theorem prover too weak. 9659 trivial. 0 not checked. [2022-12-13 17:50:06,385 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:50:06,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:50:06,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481942556] [2022-12-13 17:50:06,385 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 17:50:06,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2052205246] [2022-12-13 17:50:06,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2052205246] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:50:06,386 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:50:06,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-13 17:50:06,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453268965] [2022-12-13 17:50:06,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:50:06,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 17:50:06,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:50:06,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 17:50:06,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2022-12-13 17:50:06,388 INFO L87 Difference]: Start difference. First operand 4472 states and 5809 transitions. Second operand has 14 states, 13 states have (on average 19.384615384615383) internal successors, (252), 13 states have internal predecessors, (252), 6 states have call successors, (94), 2 states have call predecessors, (94), 4 states have return successors, (93), 6 states have call predecessors, (93), 6 states have call successors, (93) [2022-12-13 17:50:08,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:50:08,974 INFO L93 Difference]: Finished difference Result 8656 states and 11526 transitions. [2022-12-13 17:50:08,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-13 17:50:08,975 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 19.384615384615383) internal successors, (252), 13 states have internal predecessors, (252), 6 states have call successors, (94), 2 states have call predecessors, (94), 4 states have return successors, (93), 6 states have call predecessors, (93), 6 states have call successors, (93) Word has length 1574 [2022-12-13 17:50:08,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:50:08,986 INFO L225 Difference]: With dead ends: 8656 [2022-12-13 17:50:08,986 INFO L226 Difference]: Without dead ends: 5609 [2022-12-13 17:50:08,992 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1591 GetRequests, 1565 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=148, Invalid=608, Unknown=0, NotChecked=0, Total=756 [2022-12-13 17:50:08,992 INFO L413 NwaCegarLoop]: 1607 mSDtfsCounter, 2118 mSDsluCounter, 16523 mSDsCounter, 0 mSdLazyCounter, 631 mSolverCounterSat, 943 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2118 SdHoareTripleChecker+Valid, 18130 SdHoareTripleChecker+Invalid, 1574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 943 IncrementalHoareTripleChecker+Valid, 631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-13 17:50:08,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2118 Valid, 18130 Invalid, 1574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [943 Valid, 631 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-13 17:50:08,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5609 states. [2022-12-13 17:50:09,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5609 to 3809. [2022-12-13 17:50:09,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3809 states, 2538 states have (on average 1.1501182033096926) internal successors, (2919), 2585 states have internal predecessors, (2919), 982 states have call successors, (982), 273 states have call predecessors, (982), 287 states have return successors, (1003), 990 states have call predecessors, (1003), 981 states have call successors, (1003) [2022-12-13 17:50:09,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3809 states to 3809 states and 4904 transitions. [2022-12-13 17:50:09,846 INFO L78 Accepts]: Start accepts. Automaton has 3809 states and 4904 transitions. Word has length 1574 [2022-12-13 17:50:09,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:50:09,847 INFO L495 AbstractCegarLoop]: Abstraction has 3809 states and 4904 transitions. [2022-12-13 17:50:09,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 19.384615384615383) internal successors, (252), 13 states have internal predecessors, (252), 6 states have call successors, (94), 2 states have call predecessors, (94), 4 states have return successors, (93), 6 states have call predecessors, (93), 6 states have call successors, (93) [2022-12-13 17:50:09,847 INFO L276 IsEmpty]: Start isEmpty. Operand 3809 states and 4904 transitions. [2022-12-13 17:50:09,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1786 [2022-12-13 17:50:09,867 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:50:09,867 INFO L195 NwaCegarLoop]: trace histogram [29, 29, 29, 29, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 13, 13, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:50:09,887 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2022-12-13 17:50:10,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2022-12-13 17:50:10,069 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-13 17:50:10,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:50:10,070 INFO L85 PathProgramCache]: Analyzing trace with hash -303479439, now seen corresponding path program 1 times [2022-12-13 17:50:10,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:50:10,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032441659] [2022-12-13 17:50:10,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:50:10,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:50:10,233 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 17:50:10,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [99970706] [2022-12-13 17:50:10,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:50:10,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:50:10,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:50:10,234 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:50:10,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-12-13 17:50:12,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:50:12,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 10198 conjuncts, 28 conjunts are in the unsatisfiable core [2022-12-13 17:50:12,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:50:15,409 INFO L134 CoverageAnalysis]: Checked inductivity of 11323 backedges. 288 proven. 2210 refuted. 0 times theorem prover too weak. 8825 trivial. 0 not checked. [2022-12-13 17:50:15,409 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 17:50:17,127 INFO L134 CoverageAnalysis]: Checked inductivity of 11323 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11323 trivial. 0 not checked. [2022-12-13 17:50:17,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:50:17,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032441659] [2022-12-13 17:50:17,128 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 17:50:17,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [99970706] [2022-12-13 17:50:17,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [99970706] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-13 17:50:17,128 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 17:50:17,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 19 [2022-12-13 17:50:17,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546738628] [2022-12-13 17:50:17,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:50:17,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 17:50:17,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:50:17,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 17:50:17,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2022-12-13 17:50:17,133 INFO L87 Difference]: Start difference. First operand 3809 states and 4904 transitions. Second operand has 11 states, 11 states have (on average 28.636363636363637) internal successors, (315), 11 states have internal predecessors, (315), 8 states have call successors, (129), 4 states have call predecessors, (129), 3 states have return successors, (128), 8 states have call predecessors, (128), 8 states have call successors, (128) [2022-12-13 17:50:21,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:50:21,015 INFO L93 Difference]: Finished difference Result 3836 states and 4932 transitions. [2022-12-13 17:50:21,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 17:50:21,016 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 28.636363636363637) internal successors, (315), 11 states have internal predecessors, (315), 8 states have call successors, (129), 4 states have call predecessors, (129), 3 states have return successors, (128), 8 states have call predecessors, (128), 8 states have call successors, (128) Word has length 1785 [2022-12-13 17:50:21,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:50:21,026 INFO L225 Difference]: With dead ends: 3836 [2022-12-13 17:50:21,026 INFO L226 Difference]: Without dead ends: 3801 [2022-12-13 17:50:21,027 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3578 GetRequests, 3554 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=534, Unknown=0, NotChecked=0, Total=650 [2022-12-13 17:50:21,028 INFO L413 NwaCegarLoop]: 680 mSDtfsCounter, 2438 mSDsluCounter, 2195 mSDsCounter, 0 mSdLazyCounter, 4295 mSolverCounterSat, 1940 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2525 SdHoareTripleChecker+Valid, 2875 SdHoareTripleChecker+Invalid, 6235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1940 IncrementalHoareTripleChecker+Valid, 4295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-12-13 17:50:21,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2525 Valid, 2875 Invalid, 6235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1940 Valid, 4295 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-12-13 17:50:21,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3801 states. [2022-12-13 17:50:21,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3801 to 3799. [2022-12-13 17:50:21,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3799 states, 2530 states have (on average 1.150592885375494) internal successors, (2911), 2576 states have internal predecessors, (2911), 979 states have call successors, (979), 273 states have call predecessors, (979), 288 states have return successors, (1000), 989 states have call predecessors, (1000), 978 states have call successors, (1000) [2022-12-13 17:50:21,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3799 states to 3799 states and 4890 transitions. [2022-12-13 17:50:21,899 INFO L78 Accepts]: Start accepts. Automaton has 3799 states and 4890 transitions. Word has length 1785 [2022-12-13 17:50:21,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:50:21,900 INFO L495 AbstractCegarLoop]: Abstraction has 3799 states and 4890 transitions. [2022-12-13 17:50:21,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 28.636363636363637) internal successors, (315), 11 states have internal predecessors, (315), 8 states have call successors, (129), 4 states have call predecessors, (129), 3 states have return successors, (128), 8 states have call predecessors, (128), 8 states have call successors, (128) [2022-12-13 17:50:21,900 INFO L276 IsEmpty]: Start isEmpty. Operand 3799 states and 4890 transitions. [2022-12-13 17:50:21,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1928 [2022-12-13 17:50:21,923 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:50:21,923 INFO L195 NwaCegarLoop]: trace histogram [51, 51, 27, 27, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 13, 13, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:50:21,947 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2022-12-13 17:50:22,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2022-12-13 17:50:22,125 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-13 17:50:22,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:50:22,127 INFO L85 PathProgramCache]: Analyzing trace with hash -436465227, now seen corresponding path program 1 times [2022-12-13 17:50:22,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:50:22,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245521991] [2022-12-13 17:50:22,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:50:22,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:50:22,278 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 17:50:22,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1542769390] [2022-12-13 17:50:22,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:50:22,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:50:22,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:50:22,279 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:50:22,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-12-13 17:50:24,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:50:24,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 11004 conjuncts, 223 conjunts are in the unsatisfiable core [2022-12-13 17:50:24,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:50:24,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 17:50:24,744 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-13 17:50:24,949 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-13 17:50:24,988 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-13 17:50:25,032 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-13 17:50:25,126 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-13 17:50:25,126 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-13 17:50:25,151 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-13 17:50:25,164 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-13 17:50:25,165 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 18 [2022-12-13 17:50:25,264 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-13 17:50:25,333 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-13 17:50:25,420 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-13 17:50:25,494 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-13 17:50:25,624 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-13 17:50:25,625 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 33 [2022-12-13 17:50:25,744 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 17:50:25,744 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 24 [2022-12-13 17:50:25,796 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-13 17:50:25,836 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-13 17:50:25,881 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-13 17:50:25,964 INFO L321 Elim1Store]: treesize reduction 36, result has 42.9 percent of original size [2022-12-13 17:50:25,964 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 31 treesize of output 50 [2022-12-13 17:50:27,063 INFO L321 Elim1Store]: treesize reduction 821, result has 15.4 percent of original size [2022-12-13 17:50:27,063 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 10 case distinctions, treesize of input 42 treesize of output 165 [2022-12-13 17:50:27,743 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-12-13 17:50:27,750 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 17:50:27,751 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 23 [2022-12-13 17:50:27,962 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-13 17:50:28,151 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-13 17:50:28,155 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-13 17:50:28,202 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-13 17:50:28,207 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-13 17:50:28,294 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-13 17:50:28,299 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-13 17:50:28,650 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-13 17:50:28,655 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-13 17:50:28,915 INFO L321 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2022-12-13 17:50:28,915 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 30 treesize of output 41 [2022-12-13 17:50:28,942 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-13 17:50:29,224 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 17:50:29,224 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 23 [2022-12-13 17:50:29,243 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-12-13 17:50:29,492 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-13 17:50:29,707 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-13 17:50:29,712 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-13 17:50:29,758 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-13 17:50:29,763 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-13 17:50:29,835 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-13 17:50:29,840 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-13 17:50:30,240 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-13 17:50:30,246 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-13 17:50:30,530 INFO L321 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2022-12-13 17:50:30,530 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 34 [2022-12-13 17:50:30,562 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-13 17:50:30,790 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-13 17:50:31,469 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-13 17:50:31,917 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-13 17:50:31,969 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-13 17:50:32,044 INFO L134 CoverageAnalysis]: Checked inductivity of 13962 backedges. 1583 proven. 365 refuted. 16 times theorem prover too weak. 11998 trivial. 0 not checked. [2022-12-13 17:50:32,045 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 17:50:33,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:50:33,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245521991] [2022-12-13 17:50:33,204 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 17:50:33,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1542769390] [2022-12-13 17:50:33,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1542769390] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 17:50:33,204 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-12-13 17:50:33,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [54] total 54 [2022-12-13 17:50:33,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820701411] [2022-12-13 17:50:33,205 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-12-13 17:50:33,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2022-12-13 17:50:33,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:50:33,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2022-12-13 17:50:33,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=247, Invalid=3124, Unknown=51, NotChecked=0, Total=3422 [2022-12-13 17:50:33,210 INFO L87 Difference]: Start difference. First operand 3799 states and 4890 transitions. Second operand has 55 states, 51 states have (on average 7.294117647058823) internal successors, (372), 43 states have internal predecessors, (372), 23 states have call successors, (139), 13 states have call predecessors, (139), 19 states have return successors, (139), 26 states have call predecessors, (139), 23 states have call successors, (139) [2022-12-13 17:51:02,499 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 17:51:11,803 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 17:51:24,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:51:24,581 INFO L93 Difference]: Finished difference Result 8955 states and 11546 transitions. [2022-12-13 17:51:24,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-12-13 17:51:24,582 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 51 states have (on average 7.294117647058823) internal successors, (372), 43 states have internal predecessors, (372), 23 states have call successors, (139), 13 states have call predecessors, (139), 19 states have return successors, (139), 26 states have call predecessors, (139), 23 states have call successors, (139) Word has length 1927 [2022-12-13 17:51:24,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:51:24,591 INFO L225 Difference]: With dead ends: 8955 [2022-12-13 17:51:24,591 INFO L226 Difference]: Without dead ends: 5353 [2022-12-13 17:51:24,596 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3604 GetRequests, 3498 SyntacticMatches, 9 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2585 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=979, Invalid=8616, Unknown=107, NotChecked=0, Total=9702 [2022-12-13 17:51:24,597 INFO L413 NwaCegarLoop]: 814 mSDtfsCounter, 1937 mSDsluCounter, 11922 mSDsCounter, 0 mSdLazyCounter, 23041 mSolverCounterSat, 1259 mSolverCounterUnsat, 1428 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2126 SdHoareTripleChecker+Valid, 12736 SdHoareTripleChecker+Invalid, 25728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1259 IncrementalHoareTripleChecker+Valid, 23041 IncrementalHoareTripleChecker+Invalid, 1428 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45.9s IncrementalHoareTripleChecker+Time [2022-12-13 17:51:24,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2126 Valid, 12736 Invalid, 25728 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1259 Valid, 23041 Invalid, 1428 Unknown, 0 Unchecked, 45.9s Time] [2022-12-13 17:51:24,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5353 states. [2022-12-13 17:51:25,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5353 to 5149. [2022-12-13 17:51:25,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5149 states, 3431 states have (on average 1.1439813465461965) internal successors, (3925), 3494 states have internal predecessors, (3925), 1297 states have call successors, (1297), 399 states have call predecessors, (1297), 419 states have return successors, (1333), 1308 states have call predecessors, (1333), 1296 states have call successors, (1333) [2022-12-13 17:51:25,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5149 states to 5149 states and 6555 transitions. [2022-12-13 17:51:25,738 INFO L78 Accepts]: Start accepts. Automaton has 5149 states and 6555 transitions. Word has length 1927 [2022-12-13 17:51:25,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:51:25,738 INFO L495 AbstractCegarLoop]: Abstraction has 5149 states and 6555 transitions. [2022-12-13 17:51:25,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 51 states have (on average 7.294117647058823) internal successors, (372), 43 states have internal predecessors, (372), 23 states have call successors, (139), 13 states have call predecessors, (139), 19 states have return successors, (139), 26 states have call predecessors, (139), 23 states have call successors, (139) [2022-12-13 17:51:25,739 INFO L276 IsEmpty]: Start isEmpty. Operand 5149 states and 6555 transitions. [2022-12-13 17:51:25,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1907 [2022-12-13 17:51:25,763 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:51:25,764 INFO L195 NwaCegarLoop]: trace histogram [51, 51, 27, 27, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 13, 13, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:51:25,791 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-12-13 17:51:25,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:51:25,966 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-13 17:51:25,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:51:25,968 INFO L85 PathProgramCache]: Analyzing trace with hash -162204336, now seen corresponding path program 1 times [2022-12-13 17:51:25,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:51:25,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609785149] [2022-12-13 17:51:25,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:51:25,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:51:26,155 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 17:51:26,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1897272602] [2022-12-13 17:51:26,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:51:26,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:51:26,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:51:26,156 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:51:26,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-12-13 17:51:28,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:51:28,729 INFO L263 TraceCheckSpWp]: Trace formula consists of 10932 conjuncts, 183 conjunts are in the unsatisfiable core [2022-12-13 17:51:28,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:51:28,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 17:51:28,803 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-13 17:51:28,990 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-13 17:51:29,030 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-13 17:51:29,065 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-13 17:51:29,143 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-13 17:51:29,144 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-13 17:51:29,183 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-13 17:51:29,183 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 18 [2022-12-13 17:51:29,192 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-13 17:51:29,277 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-13 17:51:29,346 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-13 17:51:29,423 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-13 17:51:29,507 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-13 17:51:29,620 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-13 17:51:29,621 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-12-13 17:51:29,711 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 17:51:29,711 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2022-12-13 17:51:29,763 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-13 17:51:29,803 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-13 17:51:29,846 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-13 17:51:29,940 INFO L321 Elim1Store]: treesize reduction 36, result has 42.9 percent of original size [2022-12-13 17:51:29,940 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 26 treesize of output 45 [2022-12-13 17:51:30,888 INFO L321 Elim1Store]: treesize reduction 804, result has 18.5 percent of original size [2022-12-13 17:51:30,888 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 13 case distinctions, treesize of input 51 treesize of output 205 [2022-12-13 17:51:31,349 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 17:51:31,349 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 42 [2022-12-13 17:51:31,364 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-12-13 17:51:31,615 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-13 17:51:31,801 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-13 17:51:31,806 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-13 17:51:31,849 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-13 17:51:31,853 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-13 17:51:31,910 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-13 17:51:31,914 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-13 17:51:32,211 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-13 17:51:32,215 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-13 17:51:32,417 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-13 17:51:32,417 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2022-12-13 17:51:32,425 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-13 17:51:32,466 INFO L321 Elim1Store]: treesize reduction 12, result has 75.5 percent of original size [2022-12-13 17:51:32,467 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 29 treesize of output 57 [2022-12-13 17:51:32,658 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-12-13 17:51:33,342 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-13 17:51:33,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 17:51:33,900 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-13 17:51:34,381 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-13 17:51:34,424 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-13 17:51:34,481 INFO L134 CoverageAnalysis]: Checked inductivity of 13786 backedges. 1525 proven. 296 refuted. 0 times theorem prover too weak. 11965 trivial. 0 not checked. [2022-12-13 17:51:34,482 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 17:51:35,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:51:35,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609785149] [2022-12-13 17:51:35,721 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 17:51:35,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1897272602] [2022-12-13 17:51:35,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1897272602] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 17:51:35,722 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-12-13 17:51:35,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [51] total 51 [2022-12-13 17:51:35,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778456539] [2022-12-13 17:51:35,723 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-12-13 17:51:35,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2022-12-13 17:51:35,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:51:35,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2022-12-13 17:51:35,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=235, Invalid=2804, Unknown=41, NotChecked=0, Total=3080 [2022-12-13 17:51:35,728 INFO L87 Difference]: Start difference. First operand 5149 states and 6555 transitions. Second operand has 52 states, 49 states have (on average 7.591836734693878) internal successors, (372), 42 states have internal predecessors, (372), 22 states have call successors, (138), 13 states have call predecessors, (138), 19 states have return successors, (137), 25 states have call predecessors, (137), 22 states have call successors, (137) [2022-12-13 17:51:58,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 17:52:18,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:52:18,127 INFO L93 Difference]: Finished difference Result 10415 states and 13320 transitions. [2022-12-13 17:52:18,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-12-13 17:52:18,128 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 49 states have (on average 7.591836734693878) internal successors, (372), 42 states have internal predecessors, (372), 22 states have call successors, (138), 13 states have call predecessors, (138), 19 states have return successors, (137), 25 states have call predecessors, (137), 22 states have call successors, (137) Word has length 1906 [2022-12-13 17:52:18,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:52:18,139 INFO L225 Difference]: With dead ends: 10415 [2022-12-13 17:52:18,140 INFO L226 Difference]: Without dead ends: 6813 [2022-12-13 17:52:18,147 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3601 GetRequests, 3481 SyntacticMatches, 8 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3656 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=1180, Invalid=11583, Unknown=119, NotChecked=0, Total=12882 [2022-12-13 17:52:18,147 INFO L413 NwaCegarLoop]: 817 mSDtfsCounter, 1936 mSDsluCounter, 10573 mSDsCounter, 0 mSdLazyCounter, 21758 mSolverCounterSat, 1261 mSolverCounterUnsat, 1410 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2132 SdHoareTripleChecker+Valid, 11390 SdHoareTripleChecker+Invalid, 24429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1261 IncrementalHoareTripleChecker+Valid, 21758 IncrementalHoareTripleChecker+Invalid, 1410 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.5s IncrementalHoareTripleChecker+Time [2022-12-13 17:52:18,147 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2132 Valid, 11390 Invalid, 24429 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1261 Valid, 21758 Invalid, 1410 Unknown, 0 Unchecked, 37.5s Time] [2022-12-13 17:52:18,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6813 states. [2022-12-13 17:52:19,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6813 to 5235. [2022-12-13 17:52:19,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5235 states, 3489 states have (on average 1.1421610776726856) internal successors, (3985), 3553 states have internal predecessors, (3985), 1308 states have call successors, (1308), 413 states have call predecessors, (1308), 436 states have return successors, (1346), 1321 states have call predecessors, (1346), 1307 states have call successors, (1346) [2022-12-13 17:52:19,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5235 states to 5235 states and 6639 transitions. [2022-12-13 17:52:19,334 INFO L78 Accepts]: Start accepts. Automaton has 5235 states and 6639 transitions. Word has length 1906 [2022-12-13 17:52:19,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:52:19,334 INFO L495 AbstractCegarLoop]: Abstraction has 5235 states and 6639 transitions. [2022-12-13 17:52:19,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 49 states have (on average 7.591836734693878) internal successors, (372), 42 states have internal predecessors, (372), 22 states have call successors, (138), 13 states have call predecessors, (138), 19 states have return successors, (137), 25 states have call predecessors, (137), 22 states have call successors, (137) [2022-12-13 17:52:19,335 INFO L276 IsEmpty]: Start isEmpty. Operand 5235 states and 6639 transitions. [2022-12-13 17:52:19,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1909 [2022-12-13 17:52:19,359 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:52:19,360 INFO L195 NwaCegarLoop]: trace histogram [51, 51, 27, 27, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 13, 13, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:52:19,389 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2022-12-13 17:52:19,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2022-12-13 17:52:19,561 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-13 17:52:19,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:52:19,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1976327957, now seen corresponding path program 1 times [2022-12-13 17:52:19,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:52:19,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243062903] [2022-12-13 17:52:19,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:52:19,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:52:19,763 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 17:52:19,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [835382744] [2022-12-13 17:52:19,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:52:19,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:52:19,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:52:19,765 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:52:19,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-12-13 17:52:22,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:52:22,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 10949 conjuncts, 158 conjunts are in the unsatisfiable core [2022-12-13 17:52:22,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:52:22,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 17:52:22,326 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-13 17:52:22,550 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-13 17:52:22,550 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-12-13 17:52:22,568 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-13 17:52:22,800 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-12-13 17:52:22,953 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-12-13 17:52:23,024 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-12-13 17:52:23,096 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-12-13 17:52:23,279 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-12-13 17:52:23,425 INFO L321 Elim1Store]: treesize reduction 12, result has 42.9 percent of original size [2022-12-13 17:52:23,426 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 23 [2022-12-13 17:52:23,431 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-12-13 17:52:23,521 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 17:52:23,522 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 24 [2022-12-13 17:52:23,527 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-12-13 17:52:23,909 INFO L321 Elim1Store]: treesize reduction 15, result has 54.5 percent of original size [2022-12-13 17:52:23,910 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 43 [2022-12-13 17:52:24,545 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-13 17:52:24,546 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 36 [2022-12-13 17:52:25,531 INFO L321 Elim1Store]: treesize reduction 15, result has 54.5 percent of original size [2022-12-13 17:52:25,531 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 38 treesize of output 48 [2022-12-13 17:52:25,626 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-13 17:52:25,626 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 45 treesize of output 55 [2022-12-13 17:52:25,796 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-12-13 17:52:25,845 INFO L134 CoverageAnalysis]: Checked inductivity of 13788 backedges. 1512 proven. 264 refuted. 0 times theorem prover too weak. 12012 trivial. 0 not checked. [2022-12-13 17:52:25,845 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 17:52:26,621 WARN L837 $PredicateComparison]: unable to prove that (or (forall ((v_ArrVal_20079 Int)) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_ca91cx42_probe_~ca91cx42_bridge~5#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_ca91cx42_probe_~ca91cx42_bridge~5#1.base|) (+ 116 |c_ULTIMATE.start_ca91cx42_probe_~ca91cx42_bridge~5#1.offset|) v_ArrVal_20079)) |c_~#driver_name~0.base|) |c_~#driver_name~0.offset|) 0)) (forall ((v_ArrVal_20081 (Array Int Int))) (< 0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_ca91cx42_probe_~ca91cx42_bridge~5#1.base| v_ArrVal_20081) |c_~#driver_name~0.base|) (+ |c_~#driver_name~0.offset| 1))))) is different from false [2022-12-13 17:52:26,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:52:26,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243062903] [2022-12-13 17:52:26,629 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 17:52:26,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [835382744] [2022-12-13 17:52:26,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [835382744] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 17:52:26,629 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-12-13 17:52:26,629 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37] total 37 [2022-12-13 17:52:26,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743040064] [2022-12-13 17:52:26,629 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-12-13 17:52:26,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-12-13 17:52:26,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:52:26,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-12-13 17:52:26,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=1570, Unknown=1, NotChecked=80, Total=1806 [2022-12-13 17:52:26,631 INFO L87 Difference]: Start difference. First operand 5235 states and 6639 transitions. Second operand has 38 states, 37 states have (on average 9.837837837837839) internal successors, (364), 30 states have internal predecessors, (364), 14 states have call successors, (132), 8 states have call predecessors, (132), 12 states have return successors, (132), 18 states have call predecessors, (132), 14 states have call successors, (132) [2022-12-13 17:52:48,108 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 17:52:49,819 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 17:52:58,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:52:58,352 INFO L93 Difference]: Finished difference Result 10855 states and 13603 transitions. [2022-12-13 17:52:58,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-12-13 17:52:58,353 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 37 states have (on average 9.837837837837839) internal successors, (364), 30 states have internal predecessors, (364), 14 states have call successors, (132), 8 states have call predecessors, (132), 12 states have return successors, (132), 18 states have call predecessors, (132), 14 states have call successors, (132) Word has length 1908 [2022-12-13 17:52:58,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:52:58,365 INFO L225 Difference]: With dead ends: 10855 [2022-12-13 17:52:58,365 INFO L226 Difference]: Without dead ends: 7253 [2022-12-13 17:52:58,372 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3621 GetRequests, 3488 SyntacticMatches, 18 SemanticMatches, 115 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 4206 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=949, Invalid=12394, Unknown=1, NotChecked=228, Total=13572 [2022-12-13 17:52:58,372 INFO L413 NwaCegarLoop]: 704 mSDtfsCounter, 1383 mSDsluCounter, 6522 mSDsCounter, 0 mSdLazyCounter, 18330 mSolverCounterSat, 624 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1624 SdHoareTripleChecker+Valid, 7226 SdHoareTripleChecker+Invalid, 18954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 624 IncrementalHoareTripleChecker+Valid, 18330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.8s IncrementalHoareTripleChecker+Time [2022-12-13 17:52:58,372 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1624 Valid, 7226 Invalid, 18954 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [624 Valid, 18330 Invalid, 0 Unknown, 0 Unchecked, 25.8s Time] [2022-12-13 17:52:58,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7253 states. [2022-12-13 17:53:00,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7253 to 6810. [2022-12-13 17:53:00,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6810 states, 4545 states have (on average 1.1157315731573156) internal successors, (5071), 4620 states have internal predecessors, (5071), 1607 states have call successors, (1607), 625 states have call predecessors, (1607), 656 states have return successors, (1681), 1627 states have call predecessors, (1681), 1606 states have call successors, (1681) [2022-12-13 17:53:00,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6810 states to 6810 states and 8359 transitions. [2022-12-13 17:53:00,047 INFO L78 Accepts]: Start accepts. Automaton has 6810 states and 8359 transitions. Word has length 1908 [2022-12-13 17:53:00,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:53:00,047 INFO L495 AbstractCegarLoop]: Abstraction has 6810 states and 8359 transitions. [2022-12-13 17:53:00,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 37 states have (on average 9.837837837837839) internal successors, (364), 30 states have internal predecessors, (364), 14 states have call successors, (132), 8 states have call predecessors, (132), 12 states have return successors, (132), 18 states have call predecessors, (132), 14 states have call successors, (132) [2022-12-13 17:53:00,047 INFO L276 IsEmpty]: Start isEmpty. Operand 6810 states and 8359 transitions. [2022-12-13 17:53:00,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1911 [2022-12-13 17:53:00,074 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:53:00,074 INFO L195 NwaCegarLoop]: trace histogram [51, 51, 27, 27, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 13, 13, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:53:00,104 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2022-12-13 17:53:00,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2022-12-13 17:53:00,276 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-13 17:53:00,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:53:00,278 INFO L85 PathProgramCache]: Analyzing trace with hash -183473254, now seen corresponding path program 2 times [2022-12-13 17:53:00,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:53:00,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007003718] [2022-12-13 17:53:00,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:53:00,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:53:00,444 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 17:53:00,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1008413213] [2022-12-13 17:53:00,444 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 17:53:00,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:53:00,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:53:00,445 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:53:00,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-12-13 17:53:02,775 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 17:53:02,776 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 17:53:02,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 10966 conjuncts, 161 conjunts are in the unsatisfiable core [2022-12-13 17:53:02,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:53:02,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 17:53:02,863 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-13 17:53:03,118 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-13 17:53:03,119 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-12-13 17:53:03,139 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-13 17:53:03,439 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-12-13 17:53:03,588 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-12-13 17:53:03,677 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-12-13 17:53:03,770 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-12-13 17:53:03,986 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-12-13 17:53:04,139 INFO L321 Elim1Store]: treesize reduction 12, result has 42.9 percent of original size [2022-12-13 17:53:04,140 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 23 [2022-12-13 17:53:04,144 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-12-13 17:53:04,248 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 17:53:04,249 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 24 [2022-12-13 17:53:04,255 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-12-13 17:53:04,606 INFO L321 Elim1Store]: treesize reduction 15, result has 54.5 percent of original size [2022-12-13 17:53:04,606 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 43 [2022-12-13 17:53:05,301 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-13 17:53:05,301 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 36 [2022-12-13 17:53:06,497 INFO L321 Elim1Store]: treesize reduction 15, result has 54.5 percent of original size [2022-12-13 17:53:06,497 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 38 treesize of output 48 [2022-12-13 17:53:06,699 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-13 17:53:06,700 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 63 treesize of output 71 [2022-12-13 17:53:06,942 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 27 [2022-12-13 17:53:07,046 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-12-13 17:53:07,113 INFO L134 CoverageAnalysis]: Checked inductivity of 13792 backedges. 1512 proven. 268 refuted. 0 times theorem prover too weak. 12012 trivial. 0 not checked. [2022-12-13 17:53:07,113 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 17:53:08,191 WARN L837 $PredicateComparison]: unable to prove that (or (forall ((v_ArrVal_21907 (Array Int Int))) (< 0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_ca91cx42_probe_~ca91cx42_bridge~5#1.base| v_ArrVal_21907) |c_~#driver_name~0.base|) (+ 2 |c_~#driver_name~0.offset|)))) (forall ((v_ArrVal_21903 Int)) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_ca91cx42_probe_~ca91cx42_bridge~5#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_ca91cx42_probe_~ca91cx42_bridge~5#1.base|) (+ 116 |c_ULTIMATE.start_ca91cx42_probe_~ca91cx42_bridge~5#1.offset|) v_ArrVal_21903)) |c_~#driver_name~0.base|) |c_~#driver_name~0.offset|) 0))) is different from false [2022-12-13 17:53:08,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:53:08,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007003718] [2022-12-13 17:53:08,200 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 17:53:08,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1008413213] [2022-12-13 17:53:08,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1008413213] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 17:53:08,200 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-12-13 17:53:08,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39] total 39 [2022-12-13 17:53:08,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717115072] [2022-12-13 17:53:08,201 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-12-13 17:53:08,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-12-13 17:53:08,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:53:08,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-12-13 17:53:08,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=1879, Unknown=27, NotChecked=88, Total=2162 [2022-12-13 17:53:08,205 INFO L87 Difference]: Start difference. First operand 6810 states and 8359 transitions. Second operand has 40 states, 39 states have (on average 9.384615384615385) internal successors, (366), 32 states have internal predecessors, (366), 14 states have call successors, (132), 8 states have call predecessors, (132), 12 states have return successors, (132), 18 states have call predecessors, (132), 14 states have call successors, (132) [2022-12-13 17:53:30,322 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 [] [2022-12-13 17:53:54,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:53:54,297 INFO L93 Difference]: Finished difference Result 11162 states and 13932 transitions. [2022-12-13 17:53:54,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-12-13 17:53:54,299 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 39 states have (on average 9.384615384615385) internal successors, (366), 32 states have internal predecessors, (366), 14 states have call successors, (132), 8 states have call predecessors, (132), 12 states have return successors, (132), 18 states have call predecessors, (132), 14 states have call successors, (132) Word has length 1910 [2022-12-13 17:53:54,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:53:54,315 INFO L225 Difference]: With dead ends: 11162 [2022-12-13 17:53:54,315 INFO L226 Difference]: Without dead ends: 7255 [2022-12-13 17:53:54,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3626 GetRequests, 3488 SyntacticMatches, 18 SemanticMatches, 120 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 4466 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=970, Invalid=13520, Unknown=34, NotChecked=238, Total=14762 [2022-12-13 17:53:54,325 INFO L413 NwaCegarLoop]: 704 mSDtfsCounter, 1742 mSDsluCounter, 11216 mSDsCounter, 0 mSdLazyCounter, 25641 mSolverCounterSat, 918 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1985 SdHoareTripleChecker+Valid, 11920 SdHoareTripleChecker+Invalid, 26559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 918 IncrementalHoareTripleChecker+Valid, 25641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.8s IncrementalHoareTripleChecker+Time [2022-12-13 17:53:54,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1985 Valid, 11920 Invalid, 26559 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [918 Valid, 25641 Invalid, 0 Unknown, 0 Unchecked, 39.8s Time] [2022-12-13 17:53:54,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7255 states. [2022-12-13 17:53:56,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7255 to 6812. [2022-12-13 17:53:56,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6812 states, 4547 states have (on average 1.1156806685726852) internal successors, (5073), 4622 states have internal predecessors, (5073), 1607 states have call successors, (1607), 625 states have call predecessors, (1607), 656 states have return successors, (1681), 1627 states have call predecessors, (1681), 1606 states have call successors, (1681) [2022-12-13 17:53:56,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6812 states to 6812 states and 8361 transitions. [2022-12-13 17:53:56,045 INFO L78 Accepts]: Start accepts. Automaton has 6812 states and 8361 transitions. Word has length 1910 [2022-12-13 17:53:56,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:53:56,045 INFO L495 AbstractCegarLoop]: Abstraction has 6812 states and 8361 transitions. [2022-12-13 17:53:56,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 39 states have (on average 9.384615384615385) internal successors, (366), 32 states have internal predecessors, (366), 14 states have call successors, (132), 8 states have call predecessors, (132), 12 states have return successors, (132), 18 states have call predecessors, (132), 14 states have call successors, (132) [2022-12-13 17:53:56,045 INFO L276 IsEmpty]: Start isEmpty. Operand 6812 states and 8361 transitions. [2022-12-13 17:53:56,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1913 [2022-12-13 17:53:56,071 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:53:56,072 INFO L195 NwaCegarLoop]: trace histogram [51, 51, 27, 27, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 13, 13, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:53:56,102 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2022-12-13 17:53:56,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:53:56,274 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-13 17:53:56,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:53:56,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1283233057, now seen corresponding path program 3 times [2022-12-13 17:53:56,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:53:56,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838214514] [2022-12-13 17:53:56,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:53:56,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:53:56,480 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 17:53:56,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [631645275] [2022-12-13 17:53:56,480 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 17:53:56,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:53:56,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:53:56,481 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:53:56,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-12-13 17:53:58,098 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-12-13 17:53:58,098 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 17:53:58,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 2182 conjuncts, 29 conjunts are in the unsatisfiable core [2022-12-13 17:53:58,124 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:53:58,195 INFO L134 CoverageAnalysis]: Checked inductivity of 13798 backedges. 1570 proven. 0 refuted. 0 times theorem prover too weak. 12228 trivial. 0 not checked. [2022-12-13 17:53:58,195 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:53:58,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:53:58,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838214514] [2022-12-13 17:53:58,196 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 17:53:58,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [631645275] [2022-12-13 17:53:58,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [631645275] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:53:58,196 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:53:58,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 17:53:58,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102523744] [2022-12-13 17:53:58,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:53:58,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 17:53:58,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:53:58,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 17:53:58,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-13 17:53:58,198 INFO L87 Difference]: Start difference. First operand 6812 states and 8361 transitions. Second operand has 8 states, 8 states have (on average 40.375) internal successors, (323), 6 states have internal predecessors, (323), 3 states have call successors, (125), 2 states have call predecessors, (125), 4 states have return successors, (125), 5 states have call predecessors, (125), 3 states have call successors, (125) [2022-12-13 17:54:00,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:54:00,230 INFO L93 Difference]: Finished difference Result 11162 states and 13961 transitions. [2022-12-13 17:54:00,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 17:54:00,232 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 40.375) internal successors, (323), 6 states have internal predecessors, (323), 3 states have call successors, (125), 2 states have call predecessors, (125), 4 states have return successors, (125), 5 states have call predecessors, (125), 3 states have call successors, (125) Word has length 1912 [2022-12-13 17:54:00,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:54:00,244 INFO L225 Difference]: With dead ends: 11162 [2022-12-13 17:54:00,244 INFO L226 Difference]: Without dead ends: 7089 [2022-12-13 17:54:00,250 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1912 GetRequests, 1905 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-12-13 17:54:00,251 INFO L413 NwaCegarLoop]: 1092 mSDtfsCounter, 60 mSDsluCounter, 6437 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 7529 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 17:54:00,251 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 7529 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 17:54:00,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7089 states. [2022-12-13 17:54:01,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7089 to 6855. [2022-12-13 17:54:01,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6855 states, 4576 states have (on average 1.1149475524475525) internal successors, (5102), 4650 states have internal predecessors, (5102), 1612 states have call successors, (1612), 625 states have call predecessors, (1612), 665 states have return successors, (1780), 1642 states have call predecessors, (1780), 1611 states have call successors, (1780) [2022-12-13 17:54:01,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6855 states to 6855 states and 8494 transitions. [2022-12-13 17:54:01,974 INFO L78 Accepts]: Start accepts. Automaton has 6855 states and 8494 transitions. Word has length 1912 [2022-12-13 17:54:01,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:54:01,974 INFO L495 AbstractCegarLoop]: Abstraction has 6855 states and 8494 transitions. [2022-12-13 17:54:01,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 40.375) internal successors, (323), 6 states have internal predecessors, (323), 3 states have call successors, (125), 2 states have call predecessors, (125), 4 states have return successors, (125), 5 states have call predecessors, (125), 3 states have call successors, (125) [2022-12-13 17:54:01,975 INFO L276 IsEmpty]: Start isEmpty. Operand 6855 states and 8494 transitions. [2022-12-13 17:54:02,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2185 [2022-12-13 17:54:02,007 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:54:02,007 INFO L195 NwaCegarLoop]: trace histogram [52, 52, 52, 51, 51, 27, 27, 23, 23, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 13, 13, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:54:02,019 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2022-12-13 17:54:02,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:54:02,209 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-13 17:54:02,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:54:02,211 INFO L85 PathProgramCache]: Analyzing trace with hash -416214573, now seen corresponding path program 4 times [2022-12-13 17:54:02,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:54:02,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437826890] [2022-12-13 17:54:02,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:54:02,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:54:02,433 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 17:54:02,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [653200676] [2022-12-13 17:54:02,434 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-13 17:54:02,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:54:02,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:54:02,435 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:54:02,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-12-13 17:54:15,261 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-13 17:54:15,261 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 17:54:15,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 11867 conjuncts, 168 conjunts are in the unsatisfiable core [2022-12-13 17:54:15,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:54:15,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 17:54:15,360 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-13 17:54:15,662 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-13 17:54:15,663 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-12-13 17:54:15,684 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-13 17:54:15,895 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-12-13 17:54:16,034 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-12-13 17:54:16,096 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-12-13 17:54:16,157 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-12-13 17:54:16,323 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-12-13 17:54:16,470 INFO L321 Elim1Store]: treesize reduction 12, result has 42.9 percent of original size [2022-12-13 17:54:16,470 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 23 [2022-12-13 17:54:16,475 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-12-13 17:54:16,576 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 17:54:16,577 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 24 [2022-12-13 17:54:16,584 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-12-13 17:54:16,955 INFO L321 Elim1Store]: treesize reduction 15, result has 54.5 percent of original size [2022-12-13 17:54:16,955 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 43 [2022-12-13 17:54:17,707 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-13 17:54:17,707 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 36 [2022-12-13 17:54:18,863 INFO L321 Elim1Store]: treesize reduction 15, result has 54.5 percent of original size [2022-12-13 17:54:18,864 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 38 treesize of output 48 [2022-12-13 17:54:18,965 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-13 17:54:18,965 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 45 treesize of output 55 [2022-12-13 17:54:19,192 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 27 [2022-12-13 17:54:19,277 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 27 [2022-12-13 17:54:19,418 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-12-13 17:54:19,489 INFO L134 CoverageAnalysis]: Checked inductivity of 19969 backedges. 3484 proven. 274 refuted. 0 times theorem prover too weak. 16211 trivial. 0 not checked. [2022-12-13 17:54:19,489 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 17:54:20,726 WARN L837 $PredicateComparison]: unable to prove that (or (forall ((v_ArrVal_25634 Int)) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_ca91cx42_probe_~ca91cx42_bridge~5#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_ca91cx42_probe_~ca91cx42_bridge~5#1.base|) (+ 116 |c_ULTIMATE.start_ca91cx42_probe_~ca91cx42_bridge~5#1.offset|) v_ArrVal_25634)) |c_~#driver_name~0.base|) |c_~#driver_name~0.offset|) 0)) (forall ((v_ArrVal_25639 (Array Int Int))) (< 0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_ca91cx42_probe_~ca91cx42_bridge~5#1.base| v_ArrVal_25639) |c_~#driver_name~0.base|) (+ |c_~#driver_name~0.offset| 3))))) is different from false [2022-12-13 17:54:20,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:54:20,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437826890] [2022-12-13 17:54:20,733 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 17:54:20,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [653200676] [2022-12-13 17:54:20,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [653200676] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 17:54:20,734 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-12-13 17:54:20,734 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40] total 40 [2022-12-13 17:54:20,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386513833] [2022-12-13 17:54:20,734 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-12-13 17:54:20,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-12-13 17:54:20,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:54:20,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-12-13 17:54:20,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=2077, Unknown=10, NotChecked=92, Total=2352 [2022-12-13 17:54:20,737 INFO L87 Difference]: Start difference. First operand 6855 states and 8494 transitions. Second operand has 41 states, 40 states have (on average 9.275) internal successors, (371), 33 states have internal predecessors, (371), 14 states have call successors, (135), 8 states have call predecessors, (135), 12 states have return successors, (135), 18 states have call predecessors, (135), 14 states have call successors, (135) [2022-12-13 17:54:42,086 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 17:54:43,958 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 17:54:45,046 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 17:54:47,317 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 17:54:50,422 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 17:55:00,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:55:00,607 INFO L93 Difference]: Finished difference Result 11241 states and 14173 transitions. [2022-12-13 17:55:00,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2022-12-13 17:55:00,608 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 40 states have (on average 9.275) internal successors, (371), 33 states have internal predecessors, (371), 14 states have call successors, (135), 8 states have call predecessors, (135), 12 states have return successors, (135), 18 states have call predecessors, (135), 14 states have call successors, (135) Word has length 2184 [2022-12-13 17:55:00,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:55:00,621 INFO L225 Difference]: With dead ends: 11241 [2022-12-13 17:55:00,621 INFO L226 Difference]: Without dead ends: 7300 [2022-12-13 17:55:00,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4175 GetRequests, 4034 SyntacticMatches, 18 SemanticMatches, 123 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 4691 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=981, Invalid=14265, Unknown=10, NotChecked=244, Total=15500 [2022-12-13 17:55:00,630 INFO L413 NwaCegarLoop]: 704 mSDtfsCounter, 1393 mSDsluCounter, 8155 mSDsCounter, 0 mSdLazyCounter, 21803 mSolverCounterSat, 635 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1634 SdHoareTripleChecker+Valid, 8859 SdHoareTripleChecker+Invalid, 22438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 635 IncrementalHoareTripleChecker+Valid, 21803 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.1s IncrementalHoareTripleChecker+Time [2022-12-13 17:55:00,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1634 Valid, 8859 Invalid, 22438 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [635 Valid, 21803 Invalid, 0 Unknown, 0 Unchecked, 33.1s Time] [2022-12-13 17:55:00,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7300 states. [2022-12-13 17:55:02,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7300 to 6857. [2022-12-13 17:55:02,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6857 states, 4578 states have (on average 1.1148973350808213) internal successors, (5104), 4652 states have internal predecessors, (5104), 1612 states have call successors, (1612), 625 states have call predecessors, (1612), 665 states have return successors, (1780), 1642 states have call predecessors, (1780), 1611 states have call successors, (1780) [2022-12-13 17:55:02,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6857 states to 6857 states and 8496 transitions. [2022-12-13 17:55:02,397 INFO L78 Accepts]: Start accepts. Automaton has 6857 states and 8496 transitions. Word has length 2184 [2022-12-13 17:55:02,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:55:02,398 INFO L495 AbstractCegarLoop]: Abstraction has 6857 states and 8496 transitions. [2022-12-13 17:55:02,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 40 states have (on average 9.275) internal successors, (371), 33 states have internal predecessors, (371), 14 states have call successors, (135), 8 states have call predecessors, (135), 12 states have return successors, (135), 18 states have call predecessors, (135), 14 states have call successors, (135) [2022-12-13 17:55:02,398 INFO L276 IsEmpty]: Start isEmpty. Operand 6857 states and 8496 transitions. [2022-12-13 17:55:02,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2187 [2022-12-13 17:55:02,429 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:55:02,430 INFO L195 NwaCegarLoop]: trace histogram [52, 52, 52, 51, 51, 27, 27, 23, 23, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 13, 13, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:55:02,466 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2022-12-13 17:55:02,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:55:02,631 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-13 17:55:02,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:55:02,632 INFO L85 PathProgramCache]: Analyzing trace with hash 2061765080, now seen corresponding path program 5 times [2022-12-13 17:55:02,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:55:02,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351076387] [2022-12-13 17:55:02,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:55:02,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:55:02,874 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 17:55:02,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1023489279] [2022-12-13 17:55:02,874 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-12-13 17:55:02,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:55:02,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:55:02,875 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:55:02,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-12-13 17:55:04,047 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-13 17:55:04,047 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 17:55:04,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 17:55:04,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:55:04,106 INFO L134 CoverageAnalysis]: Checked inductivity of 19977 backedges. 5606 proven. 0 refuted. 0 times theorem prover too weak. 14371 trivial. 0 not checked. [2022-12-13 17:55:04,106 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:55:04,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:55:04,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351076387] [2022-12-13 17:55:04,107 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 17:55:04,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1023489279] [2022-12-13 17:55:04,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1023489279] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:55:04,107 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:55:04,107 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 17:55:04,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982064683] [2022-12-13 17:55:04,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:55:04,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 17:55:04,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:55:04,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 17:55:04,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 17:55:04,109 INFO L87 Difference]: Start difference. First operand 6857 states and 8496 transitions. Second operand has 4 states, 4 states have (on average 87.25) internal successors, (349), 4 states have internal predecessors, (349), 2 states have call successors, (133), 2 states have call predecessors, (133), 3 states have return successors, (132), 2 states have call predecessors, (132), 2 states have call successors, (132) [2022-12-13 17:55:05,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:55:05,909 INFO L93 Difference]: Finished difference Result 11408 states and 14398 transitions. [2022-12-13 17:55:05,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 17:55:05,910 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 87.25) internal successors, (349), 4 states have internal predecessors, (349), 2 states have call successors, (133), 2 states have call predecessors, (133), 3 states have return successors, (132), 2 states have call predecessors, (132), 2 states have call successors, (132) Word has length 2186 [2022-12-13 17:55:05,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:55:05,922 INFO L225 Difference]: With dead ends: 11408 [2022-12-13 17:55:05,922 INFO L226 Difference]: Without dead ends: 6862 [2022-12-13 17:55:05,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2186 GetRequests, 2183 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 17:55:05,928 INFO L413 NwaCegarLoop]: 974 mSDtfsCounter, 2 mSDsluCounter, 1946 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2920 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 17:55:05,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2920 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 17:55:05,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6862 states. [2022-12-13 17:55:07,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6862 to 6862. [2022-12-13 17:55:07,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6862 states, 4583 states have (on average 1.1147719834169758) internal successors, (5109), 4657 states have internal predecessors, (5109), 1612 states have call successors, (1612), 625 states have call predecessors, (1612), 665 states have return successors, (1780), 1642 states have call predecessors, (1780), 1611 states have call successors, (1780) [2022-12-13 17:55:07,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6862 states to 6862 states and 8501 transitions. [2022-12-13 17:55:07,722 INFO L78 Accepts]: Start accepts. Automaton has 6862 states and 8501 transitions. Word has length 2186 [2022-12-13 17:55:07,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:55:07,723 INFO L495 AbstractCegarLoop]: Abstraction has 6862 states and 8501 transitions. [2022-12-13 17:55:07,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 87.25) internal successors, (349), 4 states have internal predecessors, (349), 2 states have call successors, (133), 2 states have call predecessors, (133), 3 states have return successors, (132), 2 states have call predecessors, (132), 2 states have call successors, (132) [2022-12-13 17:55:07,723 INFO L276 IsEmpty]: Start isEmpty. Operand 6862 states and 8501 transitions. [2022-12-13 17:55:07,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1939 [2022-12-13 17:55:07,749 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:55:07,750 INFO L195 NwaCegarLoop]: trace histogram [51, 51, 27, 27, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 13, 13, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:55:07,760 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2022-12-13 17:55:07,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2022-12-13 17:55:07,951 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-13 17:55:07,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:55:07,953 INFO L85 PathProgramCache]: Analyzing trace with hash 2075610208, now seen corresponding path program 1 times [2022-12-13 17:55:07,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:55:07,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956698481] [2022-12-13 17:55:07,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:55:07,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:55:08,130 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 17:55:08,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1375959008] [2022-12-13 17:55:08,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:55:08,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:55:08,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:55:08,131 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:55:08,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2022-12-13 17:55:16,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:16,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 11172 conjuncts, 47 conjunts are in the unsatisfiable core [2022-12-13 17:55:16,343 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:55:16,491 INFO L134 CoverageAnalysis]: Checked inductivity of 14069 backedges. 1399 proven. 0 refuted. 0 times theorem prover too weak. 12670 trivial. 0 not checked. [2022-12-13 17:55:16,491 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:55:16,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:55:16,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956698481] [2022-12-13 17:55:16,492 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 17:55:16,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1375959008] [2022-12-13 17:55:16,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1375959008] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:55:16,492 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:55:16,492 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 17:55:16,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420798695] [2022-12-13 17:55:16,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:55:16,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 17:55:16,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:55:16,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 17:55:16,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-12-13 17:55:16,494 INFO L87 Difference]: Start difference. First operand 6862 states and 8501 transitions. Second operand has 10 states, 10 states have (on average 33.2) internal successors, (332), 8 states have internal predecessors, (332), 3 states have call successors, (128), 2 states have call predecessors, (128), 4 states have return successors, (128), 5 states have call predecessors, (128), 3 states have call successors, (128) [2022-12-13 17:55:18,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:55:18,976 INFO L93 Difference]: Finished difference Result 12619 states and 15840 transitions. [2022-12-13 17:55:18,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 17:55:18,977 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 33.2) internal successors, (332), 8 states have internal predecessors, (332), 3 states have call successors, (128), 2 states have call predecessors, (128), 4 states have return successors, (128), 5 states have call predecessors, (128), 3 states have call successors, (128) Word has length 1938 [2022-12-13 17:55:18,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:55:18,987 INFO L225 Difference]: With dead ends: 12619 [2022-12-13 17:55:18,987 INFO L226 Difference]: Without dead ends: 6440 [2022-12-13 17:55:18,994 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1940 GetRequests, 1929 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-12-13 17:55:18,994 INFO L413 NwaCegarLoop]: 1041 mSDtfsCounter, 45 mSDsluCounter, 8242 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 9283 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-13 17:55:18,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 9283 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-13 17:55:18,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6440 states. [2022-12-13 17:55:20,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6440 to 6215. [2022-12-13 17:55:20,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6215 states, 4159 states have (on average 1.1216638615051695) internal successors, (4665), 4217 states have internal predecessors, (4665), 1482 states have call successors, (1482), 540 states have call predecessors, (1482), 572 states have return successors, (1633), 1511 states have call predecessors, (1633), 1481 states have call successors, (1633) [2022-12-13 17:55:20,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6215 states to 6215 states and 7780 transitions. [2022-12-13 17:55:20,516 INFO L78 Accepts]: Start accepts. Automaton has 6215 states and 7780 transitions. Word has length 1938 [2022-12-13 17:55:20,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:55:20,516 INFO L495 AbstractCegarLoop]: Abstraction has 6215 states and 7780 transitions. [2022-12-13 17:55:20,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 33.2) internal successors, (332), 8 states have internal predecessors, (332), 3 states have call successors, (128), 2 states have call predecessors, (128), 4 states have return successors, (128), 5 states have call predecessors, (128), 3 states have call successors, (128) [2022-12-13 17:55:20,516 INFO L276 IsEmpty]: Start isEmpty. Operand 6215 states and 7780 transitions. [2022-12-13 17:55:20,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1954 [2022-12-13 17:55:20,542 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:55:20,543 INFO L195 NwaCegarLoop]: trace histogram [51, 51, 27, 27, 22, 22, 22, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 13, 13, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:55:20,596 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2022-12-13 17:55:20,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:55:20,745 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-13 17:55:20,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:55:20,747 INFO L85 PathProgramCache]: Analyzing trace with hash -2100268106, now seen corresponding path program 1 times [2022-12-13 17:55:20,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:55:20,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289456102] [2022-12-13 17:55:20,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:55:20,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:55:20,965 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 17:55:20,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1365731180] [2022-12-13 17:55:20,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:55:20,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:55:20,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:55:20,966 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:55:20,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2022-12-13 17:55:23,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:23,817 INFO L263 TraceCheckSpWp]: Trace formula consists of 11193 conjuncts, 238 conjunts are in the unsatisfiable core [2022-12-13 17:55:23,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:55:23,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 17:55:23,854 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-13 17:55:23,986 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-13 17:55:24,015 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-13 17:55:24,038 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-13 17:55:24,095 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-13 17:55:24,095 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-13 17:55:24,117 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-13 17:55:24,130 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-13 17:55:24,130 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 18 [2022-12-13 17:55:24,206 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-13 17:55:24,271 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-13 17:55:24,301 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-13 17:55:24,337 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-13 17:55:24,422 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-13 17:55:24,422 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 25 [2022-12-13 17:55:24,539 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-13 17:55:24,568 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-13 17:55:24,602 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-13 17:55:24,668 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-13 17:55:24,669 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 33 [2022-12-13 17:55:25,278 INFO L321 Elim1Store]: treesize reduction 621, result has 20.1 percent of original size [2022-12-13 17:55:25,279 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 10 case distinctions, treesize of input 46 treesize of output 175 [2022-12-13 17:55:26,588 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-12-13 17:55:26,795 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-13 17:55:26,954 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-13 17:55:26,957 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-12-13 17:55:27,073 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-13 17:55:27,076 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-12-13 17:55:27,205 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-13 17:55:27,209 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-12-13 17:55:27,617 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-13 17:55:27,619 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-12-13 17:55:27,879 INFO L321 Elim1Store]: treesize reduction 12, result has 42.9 percent of original size [2022-12-13 17:55:27,879 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 23 [2022-12-13 17:55:27,884 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-12-13 17:55:27,904 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-13 17:55:27,904 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 33 [2022-12-13 17:55:28,084 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 17:55:28,084 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 24 [2022-12-13 17:55:28,088 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2022-12-13 17:55:28,096 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-12-13 17:55:28,230 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-13 17:55:28,428 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-13 17:55:28,430 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-13 17:55:28,453 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-13 17:55:28,456 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-13 17:55:28,483 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-13 17:55:28,486 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-13 17:55:28,774 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-13 17:55:28,778 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-13 17:55:28,966 INFO L321 Elim1Store]: treesize reduction 20, result has 57.4 percent of original size [2022-12-13 17:55:28,966 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 26 treesize of output 47 [2022-12-13 17:55:28,977 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-12-13 17:55:28,996 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-13 17:55:28,996 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 20 [2022-12-13 17:55:29,211 INFO L321 Elim1Store]: treesize reduction 15, result has 54.5 percent of original size [2022-12-13 17:55:29,211 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 47 [2022-12-13 17:55:29,221 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-12-13 17:55:30,066 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-12-13 17:55:30,067 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 48 treesize of output 55 [2022-12-13 17:55:31,509 INFO L321 Elim1Store]: treesize reduction 15, result has 54.5 percent of original size [2022-12-13 17:55:31,509 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 54 [2022-12-13 17:55:31,527 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-12-13 17:55:31,709 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-13 17:55:31,710 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 51 treesize of output 61 [2022-12-13 17:55:31,882 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-12-13 17:55:31,948 INFO L134 CoverageAnalysis]: Checked inductivity of 14246 backedges. 1724 proven. 363 refuted. 0 times theorem prover too weak. 12159 trivial. 0 not checked. [2022-12-13 17:55:31,949 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 17:55:33,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:55:33,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289456102] [2022-12-13 17:55:33,236 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 17:55:33,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1365731180] [2022-12-13 17:55:33,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1365731180] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 17:55:33,236 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-12-13 17:55:33,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52] total 52 [2022-12-13 17:55:33,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918446990] [2022-12-13 17:55:33,237 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-12-13 17:55:33,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-12-13 17:55:33,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:55:33,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-12-13 17:55:33,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=221, Invalid=3166, Unknown=35, NotChecked=0, Total=3422 [2022-12-13 17:55:33,242 INFO L87 Difference]: Start difference. First operand 6215 states and 7780 transitions. Second operand has 53 states, 51 states have (on average 7.490196078431373) internal successors, (382), 42 states have internal predecessors, (382), 22 states have call successors, (142), 11 states have call predecessors, (142), 18 states have return successors, (142), 25 states have call predecessors, (142), 22 states have call successors, (142) [2022-12-13 17:56:12,464 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 17:56:16,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 17:56:17,920 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 17:56:24,638 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 17:56:31,957 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 17:56:33,775 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 17:56:36,224 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 17:56:49,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:56:49,349 INFO L93 Difference]: Finished difference Result 10794 states and 13709 transitions. [2022-12-13 17:56:49,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-12-13 17:56:49,350 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 51 states have (on average 7.490196078431373) internal successors, (382), 42 states have internal predecessors, (382), 22 states have call successors, (142), 11 states have call predecessors, (142), 18 states have return successors, (142), 25 states have call predecessors, (142), 22 states have call successors, (142) Word has length 1953 [2022-12-13 17:56:49,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:56:49,361 INFO L225 Difference]: With dead ends: 10794 [2022-12-13 17:56:49,361 INFO L226 Difference]: Without dead ends: 6843 [2022-12-13 17:56:49,367 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3682 GetRequests, 3544 SyntacticMatches, 18 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4352 ImplicationChecksByTransitivity, 10.5s TimeCoverageRelationStatistics Valid=1121, Invalid=13524, Unknown=117, NotChecked=0, Total=14762 [2022-12-13 17:56:49,367 INFO L413 NwaCegarLoop]: 715 mSDtfsCounter, 1836 mSDsluCounter, 13159 mSDsCounter, 0 mSdLazyCounter, 31976 mSolverCounterSat, 1211 mSolverCounterUnsat, 1436 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 63.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2043 SdHoareTripleChecker+Valid, 13874 SdHoareTripleChecker+Invalid, 34623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1211 IncrementalHoareTripleChecker+Valid, 31976 IncrementalHoareTripleChecker+Invalid, 1436 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 67.2s IncrementalHoareTripleChecker+Time [2022-12-13 17:56:49,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2043 Valid, 13874 Invalid, 34623 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1211 Valid, 31976 Invalid, 1436 Unknown, 0 Unchecked, 67.2s Time] [2022-12-13 17:56:49,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6843 states. [2022-12-13 17:56:51,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6843 to 6443. [2022-12-13 17:56:51,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6443 states, 4313 states have (on average 1.1187108741015535) internal successors, (4825), 4371 states have internal predecessors, (4825), 1526 states have call successors, (1526), 566 states have call predecessors, (1526), 602 states have return successors, (1683), 1561 states have call predecessors, (1683), 1525 states have call successors, (1683) [2022-12-13 17:56:51,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6443 states to 6443 states and 8034 transitions. [2022-12-13 17:56:51,017 INFO L78 Accepts]: Start accepts. Automaton has 6443 states and 8034 transitions. Word has length 1953 [2022-12-13 17:56:51,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:56:51,017 INFO L495 AbstractCegarLoop]: Abstraction has 6443 states and 8034 transitions. [2022-12-13 17:56:51,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 51 states have (on average 7.490196078431373) internal successors, (382), 42 states have internal predecessors, (382), 22 states have call successors, (142), 11 states have call predecessors, (142), 18 states have return successors, (142), 25 states have call predecessors, (142), 22 states have call successors, (142) [2022-12-13 17:56:51,017 INFO L276 IsEmpty]: Start isEmpty. Operand 6443 states and 8034 transitions. [2022-12-13 17:56:51,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2212 [2022-12-13 17:56:51,049 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:56:51,049 INFO L195 NwaCegarLoop]: trace histogram [54, 54, 54, 51, 51, 27, 27, 24, 24, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 13, 13, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:56:51,082 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2022-12-13 17:56:51,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2022-12-13 17:56:51,251 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-13 17:56:51,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:56:51,253 INFO L85 PathProgramCache]: Analyzing trace with hash 399368507, now seen corresponding path program 2 times [2022-12-13 17:56:51,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:56:51,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178924665] [2022-12-13 17:56:51,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:56:51,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:56:51,450 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 17:56:51,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1556646238] [2022-12-13 17:56:51,451 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 17:56:51,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:56:51,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:56:51,452 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:56:51,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2022-12-13 17:56:54,447 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 17:56:54,447 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 17:56:54,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 12042 conjuncts, 196 conjunts are in the unsatisfiable core [2022-12-13 17:56:54,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:56:54,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 17:56:54,544 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-13 17:56:54,723 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-13 17:56:54,761 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-13 17:56:54,798 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-13 17:56:54,880 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-13 17:56:54,880 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-13 17:56:54,912 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-13 17:56:54,933 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-13 17:56:54,934 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 18 [2022-12-13 17:56:55,030 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-13 17:56:55,089 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-13 17:56:55,116 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-13 17:56:55,142 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-13 17:56:55,203 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-13 17:56:55,203 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 33 [2022-12-13 17:56:55,281 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-13 17:56:55,380 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-13 17:56:55,439 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-13 17:56:55,533 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-13 17:56:55,534 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-12-13 17:56:56,357 INFO L321 Elim1Store]: treesize reduction 779, result has 19.8 percent of original size [2022-12-13 17:56:56,358 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 10 case distinctions, treesize of input 42 treesize of output 207 [2022-12-13 17:56:56,598 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-12-13 17:56:56,779 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-13 17:56:56,960 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-13 17:56:56,962 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-13 17:56:56,991 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-13 17:56:56,994 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-13 17:56:57,026 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-13 17:56:57,029 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-13 17:56:57,244 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-13 17:56:57,246 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-13 17:56:57,388 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-13 17:56:57,388 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2022-12-13 17:56:57,393 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-13 17:56:57,494 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-12-13 17:56:57,779 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-12-13 17:56:57,894 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-12-13 17:56:58,003 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-12-13 17:56:58,275 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-12-13 17:56:58,490 INFO L321 Elim1Store]: treesize reduction 12, result has 42.9 percent of original size [2022-12-13 17:56:58,490 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 23 [2022-12-13 17:56:58,495 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-12-13 17:56:58,626 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-12-13 17:56:58,626 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 35 [2022-12-13 17:56:59,104 INFO L321 Elim1Store]: treesize reduction 13, result has 58.1 percent of original size [2022-12-13 17:56:59,105 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 35 treesize of output 45 [2022-12-13 17:56:59,124 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-12-13 17:56:59,561 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 26 [2022-12-13 17:56:59,658 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 26 [2022-12-13 17:56:59,764 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 33 [2022-12-13 17:56:59,915 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-12-13 17:56:59,984 INFO L134 CoverageAnalysis]: Checked inductivity of 20554 backedges. 3939 proven. 357 refuted. 0 times theorem prover too weak. 16258 trivial. 0 not checked. [2022-12-13 17:56:59,984 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 17:57:01,305 WARN L837 $PredicateComparison]: unable to prove that (or (forall ((v_ArrVal_33430 (Array Int Int))) (< 0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_#Ultimate.C_strcpy_dest#1.base| v_ArrVal_33430) |c_ULTIMATE.start_#Ultimate.C_strcpy_src#1.base|) (+ |c_ULTIMATE.start_#Ultimate.C_strcpy_#t~offset867#1| 2 |c_ULTIMATE.start_#Ultimate.C_strcpy_src#1.offset|)))) (forall ((v_ArrVal_33428 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_#Ultimate.C_strcpy_dest#1.base| v_ArrVal_33428) |c_ULTIMATE.start_#Ultimate.C_strcpy_src#1.base|) (+ |c_ULTIMATE.start_#Ultimate.C_strcpy_#t~offset867#1| |c_ULTIMATE.start_#Ultimate.C_strcpy_src#1.offset| 1)) 0)) (= c_~ldv_linux_net_register_probe_state~0 1)) is different from false [2022-12-13 17:57:01,317 WARN L837 $PredicateComparison]: unable to prove that (or (forall ((v_ArrVal_33428 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_ca91cx42_probe_~ca91cx42_bridge~5#1.base| v_ArrVal_33428) |c_~#driver_name~0.base|) (+ |c_~#driver_name~0.offset| 1)) 0)) (forall ((v_ArrVal_33430 (Array Int Int))) (< 0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_ca91cx42_probe_~ca91cx42_bridge~5#1.base| v_ArrVal_33430) |c_~#driver_name~0.base|) (+ 2 |c_~#driver_name~0.offset|)))) (= c_~ldv_linux_net_register_probe_state~0 1)) is different from false [2022-12-13 17:57:01,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:57:01,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178924665] [2022-12-13 17:57:01,325 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 17:57:01,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1556646238] [2022-12-13 17:57:01,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1556646238] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 17:57:01,326 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-12-13 17:57:01,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53] total 53 [2022-12-13 17:57:01,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876290121] [2022-12-13 17:57:01,326 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-12-13 17:57:01,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2022-12-13 17:57:01,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:57:01,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2022-12-13 17:57:01,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=235, Invalid=3276, Unknown=37, NotChecked=234, Total=3782 [2022-12-13 17:57:01,329 INFO L87 Difference]: Start difference. First operand 6443 states and 8034 transitions. Second operand has 54 states, 51 states have (on average 7.686274509803922) internal successors, (392), 45 states have internal predecessors, (392), 23 states have call successors, (145), 13 states have call predecessors, (145), 20 states have return successors, (144), 25 states have call predecessors, (144), 23 states have call successors, (144) [2022-12-13 17:57:44,121 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 17:57:53,759 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 17:57:58,742 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 17:57:59,993 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 17:58:01,117 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 17:58:02,120 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 17:58:03,122 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 17:58:16,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:58:16,366 INFO L93 Difference]: Finished difference Result 11025 states and 13969 transitions. [2022-12-13 17:58:16,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2022-12-13 17:58:16,367 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 51 states have (on average 7.686274509803922) internal successors, (392), 45 states have internal predecessors, (392), 23 states have call successors, (145), 13 states have call predecessors, (145), 20 states have return successors, (144), 25 states have call predecessors, (144), 23 states have call successors, (144) Word has length 2211 [2022-12-13 17:58:16,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:58:16,378 INFO L225 Difference]: With dead ends: 11025 [2022-12-13 17:58:16,378 INFO L226 Difference]: Without dead ends: 7074 [2022-12-13 17:58:16,384 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4208 GetRequests, 4062 SyntacticMatches, 10 SemanticMatches, 136 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 5437 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=1307, Invalid=16930, Unknown=131, NotChecked=538, Total=18906 [2022-12-13 17:58:16,384 INFO L413 NwaCegarLoop]: 730 mSDtfsCounter, 2435 mSDsluCounter, 13329 mSDsCounter, 0 mSdLazyCounter, 36056 mSolverCounterSat, 1599 mSolverCounterUnsat, 1850 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 62.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2675 SdHoareTripleChecker+Valid, 14059 SdHoareTripleChecker+Invalid, 39505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1599 IncrementalHoareTripleChecker+Valid, 36056 IncrementalHoareTripleChecker+Invalid, 1850 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 65.3s IncrementalHoareTripleChecker+Time [2022-12-13 17:58:16,384 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2675 Valid, 14059 Invalid, 39505 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1599 Valid, 36056 Invalid, 1850 Unknown, 0 Unchecked, 65.3s Time] [2022-12-13 17:58:16,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7074 states. [2022-12-13 17:58:18,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7074 to 6650. [2022-12-13 17:58:18,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6650 states, 4452 states have (on average 1.1159029649595686) internal successors, (4968), 4510 states have internal predecessors, (4968), 1566 states have call successors, (1566), 592 states have call predecessors, (1566), 630 states have return successors, (1728), 1604 states have call predecessors, (1728), 1565 states have call successors, (1728) [2022-12-13 17:58:18,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6650 states to 6650 states and 8262 transitions. [2022-12-13 17:58:18,124 INFO L78 Accepts]: Start accepts. Automaton has 6650 states and 8262 transitions. Word has length 2211 [2022-12-13 17:58:18,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:58:18,124 INFO L495 AbstractCegarLoop]: Abstraction has 6650 states and 8262 transitions. [2022-12-13 17:58:18,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 51 states have (on average 7.686274509803922) internal successors, (392), 45 states have internal predecessors, (392), 23 states have call successors, (145), 13 states have call predecessors, (145), 20 states have return successors, (144), 25 states have call predecessors, (144), 23 states have call successors, (144) [2022-12-13 17:58:18,125 INFO L276 IsEmpty]: Start isEmpty. Operand 6650 states and 8262 transitions. [2022-12-13 17:58:18,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2214 [2022-12-13 17:58:18,156 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:58:18,156 INFO L195 NwaCegarLoop]: trace histogram [54, 54, 54, 51, 51, 27, 27, 24, 24, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 13, 13, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:58:18,188 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2022-12-13 17:58:18,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2022-12-13 17:58:18,358 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-13 17:58:18,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:58:18,360 INFO L85 PathProgramCache]: Analyzing trace with hash 2106121280, now seen corresponding path program 3 times [2022-12-13 17:58:18,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:58:18,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898811605] [2022-12-13 17:58:18,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:58:18,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:58:18,556 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 17:58:18,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1222050249] [2022-12-13 17:58:18,556 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 17:58:18,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:58:18,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:58:18,557 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:58:18,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e76b33f-382b-4103-aa76-7678f7d759a1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process