./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R --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 527ba95af45b5d863cb3ca1867267fd54ac6958329e64d7162c5caa88bde96c3 --- 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-38b53e6 [2022-11-25 17:01:07,163 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:01:07,166 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:01:07,209 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:01:07,209 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:01:07,213 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:01:07,216 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:01:07,219 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:01:07,221 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:01:07,227 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:01:07,228 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:01:07,231 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:01:07,231 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:01:07,234 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:01:07,236 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:01:07,238 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:01:07,240 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:01:07,241 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:01:07,242 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:01:07,249 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:01:07,250 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:01:07,253 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:01:07,255 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:01:07,256 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:01:07,266 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:01:07,268 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:01:07,268 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:01:07,270 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:01:07,271 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:01:07,272 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:01:07,272 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:01:07,273 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:01:07,275 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:01:07,277 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:01:07,278 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:01:07,279 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:01:07,279 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:01:07,280 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:01:07,280 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:01:07,281 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:01:07,282 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:01:07,283 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-25 17:01:07,323 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:01:07,324 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:01:07,324 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:01:07,325 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:01:07,326 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:01:07,326 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:01:07,327 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:01:07,327 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:01:07,327 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:01:07,327 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:01:07,328 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:01:07,329 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:01:07,329 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:01:07,329 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:01:07,329 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:01:07,329 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:01:07,330 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:01:07,330 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:01:07,330 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:01:07,330 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:01:07,331 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:01:07,331 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:01:07,331 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:01:07,331 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:01:07,331 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:01:07,332 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:01:07,332 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:01:07,332 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:01:07,333 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:01:07,333 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:01:07,333 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:01:07,333 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_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 527ba95af45b5d863cb3ca1867267fd54ac6958329e64d7162c5caa88bde96c3 [2022-11-25 17:01:07,597 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:01:07,635 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:01:07,638 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:01:07,640 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:01:07,640 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:01:07,641 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i [2022-11-25 17:01:10,628 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:01:11,428 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:01:11,429 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i [2022-11-25 17:01:11,513 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/data/3d220b88e/15f91e91b01640b08087ed32c08d2643/FLAG655037de2 [2022-11-25 17:01:11,533 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/data/3d220b88e/15f91e91b01640b08087ed32c08d2643 [2022-11-25 17:01:11,536 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:01:11,538 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:01:11,541 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:01:11,541 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:01:11,545 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:01:11,546 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:01:11" (1/1) ... [2022-11-25 17:01:11,547 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13c993eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:01:11, skipping insertion in model container [2022-11-25 17:01:11,547 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:01:11" (1/1) ... [2022-11-25 17:01:11,555 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:01:11,755 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:01:12,837 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-11-25 17:01:12,850 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-11-25 17:01:12,865 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-11-25 17:01:12,929 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-25 17:01:13,035 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 17:01:13,036 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-11-25 17:01:13,038 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-11-25 17:01:13,038 WARN L623 FunctionHandler]: Unknown extern function __copy_from_user_overflow [2022-11-25 17:01:13,046 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 17:01:13,047 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-11-25 17:01:13,048 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-11-25 17:01:13,049 WARN L623 FunctionHandler]: Unknown extern function __copy_to_user_overflow [2022-11-25 17:01:13,105 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-25 17:01:13,113 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-25 17:01:13,114 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-11-25 17:01:13,128 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-11-25 17:01:13,172 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-11-25 17:01:13,183 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 17:01:13,186 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-11-25 17:01:13,242 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 17:01:13,327 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-25 17:01:13,340 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-11-25 17:01:13,410 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-11-25 17:01:13,412 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-11-25 17:01:13,425 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 17:01:13,428 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:13,463 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_irq [2022-11-25 17:01:13,525 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_byte [2022-11-25 17:01:13,532 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_word [2022-11-25 17:01:13,540 WARN L623 FunctionHandler]: Unknown extern function pci_bus_write_config_byte [2022-11-25 17:01:13,547 WARN L623 FunctionHandler]: Unknown extern function pci_bus_write_config_word [2022-11-25 17:01:13,595 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-11-25 17:01:14,186 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:14,187 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:14,187 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:14,188 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:14,188 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:14,189 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:14,189 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:14,190 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:14,190 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:14,191 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:14,191 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:14,194 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:14,194 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:14,195 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:14,196 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 17:01:14,196 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-11-25 17:01:14,199 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-25 17:01:14,207 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:14,208 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:14,211 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 17:01:14,212 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:14,213 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:14,214 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:14,214 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:14,216 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:14,217 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:14,217 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:14,218 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:14,218 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:14,219 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:14,220 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:14,220 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:14,227 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:14,227 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:14,229 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:14,234 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:14,241 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:14,242 WARN L623 FunctionHandler]: Unknown extern function synchronize_irq [2022-11-25 17:01:14,245 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:14,253 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:14,254 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-11-25 17:01:14,254 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-11-25 17:01:14,279 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:14,292 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-11-25 17:01:14,315 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-11-25 17:01:14,319 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-11-25 17:01:14,320 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-11-25 17:01:14,321 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-25 17:01:14,328 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-11-25 17:01:14,328 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-25 17:01:14,469 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:14,480 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:14,483 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:14,484 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:14,484 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:14,485 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:14,486 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:14,486 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:14,487 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:14,488 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:14,563 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-25 17:01:14,564 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 17:01:14,599 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:14,606 WARN L623 FunctionHandler]: Unknown extern function strncpy [2022-11-25 17:01:14,610 WARN L623 FunctionHandler]: Unknown extern function strstr [2022-11-25 17:01:14,640 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:14,645 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:14,646 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:14,648 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:14,649 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:14,656 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:14,657 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:14,713 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:14,714 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:14,715 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:14,715 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:14,717 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:14,724 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:14,725 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:14,733 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:14,733 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:14,734 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:14,734 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:14,735 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:14,735 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:14,736 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:14,736 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:14,737 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:14,737 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:14,742 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:14,743 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:14,745 WARN L623 FunctionHandler]: Unknown extern function strstr [2022-11-25 17:01:14,750 WARN L623 FunctionHandler]: Unknown extern function strstr [2022-11-25 17:01:14,752 WARN L623 FunctionHandler]: Unknown extern function strstr [2022-11-25 17:01:14,753 WARN L623 FunctionHandler]: Unknown extern function strstr [2022-11-25 17:01:14,754 WARN L623 FunctionHandler]: Unknown extern function strstr [2022-11-25 17:01:14,755 WARN L623 FunctionHandler]: Unknown extern function strstr [2022-11-25 17:01:14,756 WARN L623 FunctionHandler]: Unknown extern function strstr [2022-11-25 17:01:14,758 WARN L623 FunctionHandler]: Unknown extern function strstr [2022-11-25 17:01:14,759 WARN L623 FunctionHandler]: Unknown extern function strstr [2022-11-25 17:01:14,760 WARN L623 FunctionHandler]: Unknown extern function strstr [2022-11-25 17:01:14,761 WARN L623 FunctionHandler]: Unknown extern function strstr [2022-11-25 17:01:14,762 WARN L623 FunctionHandler]: Unknown extern function strstr [2022-11-25 17:01:14,763 WARN L623 FunctionHandler]: Unknown extern function strstr [2022-11-25 17:01:14,764 WARN L623 FunctionHandler]: Unknown extern function strstr [2022-11-25 17:01:14,765 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:14,766 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:14,766 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:14,767 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:14,767 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:14,768 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:14,768 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:14,769 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:14,770 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:14,770 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:14,771 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:14,771 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:14,772 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:14,772 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:14,774 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:14,776 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:14,779 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:14,783 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:14,783 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:14,784 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:14,786 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:14,787 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:14,788 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:14,789 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:14,790 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:14,796 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:14,796 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:14,797 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:14,798 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:14,807 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:14,808 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:14,810 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:14,810 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:14,811 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:14,811 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:14,812 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:14,812 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:14,813 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:14,814 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:14,814 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:14,815 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:14,820 WARN L623 FunctionHandler]: Unknown extern function capable [2022-11-25 17:01:14,828 WARN L623 FunctionHandler]: Unknown extern function capable [2022-11-25 17:01:14,828 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:14,829 WARN L623 FunctionHandler]: Unknown extern function capable [2022-11-25 17:01:14,831 WARN L623 FunctionHandler]: Unknown extern function capable [2022-11-25 17:01:14,833 WARN L623 FunctionHandler]: Unknown extern function capable [2022-11-25 17:01:15,233 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-11-25 17:01:15,234 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-11-25 17:01:15,235 WARN L623 FunctionHandler]: Unknown extern function eth_change_mtu [2022-11-25 17:01:15,235 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-11-25 17:01:15,236 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-11-25 17:01:15,241 WARN L623 FunctionHandler]: Unknown extern function eth_change_mtu [2022-11-25 17:01:15,242 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-11-25 17:01:15,243 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-11-25 17:01:15,244 WARN L623 FunctionHandler]: Unknown extern function eth_change_mtu [2022-11-25 17:01:15,245 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-11-25 17:01:15,246 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-11-25 17:01:15,247 WARN L623 FunctionHandler]: Unknown extern function eth_change_mtu [2022-11-25 17:01:15,248 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-11-25 17:01:15,251 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-11-25 17:01:15,252 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-11-25 17:01:15,264 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-11-25 17:01:15,267 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_register_netdev [2022-11-25 17:01:15,269 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-11-25 17:01:15,270 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-11-25 17:01:15,271 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-11-25 17:01:15,280 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-25 17:01:15,281 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-25 17:01:15,282 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-11-25 17:01:15,282 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-11-25 17:01:15,283 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-11-25 17:01:15,283 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-25 17:01:15,284 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-11-25 17:01:15,284 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-25 17:01:15,284 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-25 17:01:15,285 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-11-25 17:01:15,286 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-25 17:01:15,286 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-25 17:01:15,286 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-11-25 17:01:15,287 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-11-25 17:01:15,353 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-11-25 17:01:15,353 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-25 17:01:15,365 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 17:01:16,104 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_4a6e1f0b-b279-4931-9e63-e41de9a261c6/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[470813,470826] [2022-11-25 17:01:16,107 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_4a6e1f0b-b279-4931-9e63-e41de9a261c6/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[470982,470995] [2022-11-25 17:01:16,108 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_4a6e1f0b-b279-4931-9e63-e41de9a261c6/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[471149,471162] [2022-11-25 17:01:16,109 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_4a6e1f0b-b279-4931-9e63-e41de9a261c6/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[471317,471330] [2022-11-25 17:01:16,138 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:01:16,175 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:01:16,299 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-11-25 17:01:16,300 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-11-25 17:01:16,300 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-11-25 17:01:16,335 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-25 17:01:16,336 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 17:01:16,336 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-11-25 17:01:16,337 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-11-25 17:01:16,337 WARN L623 FunctionHandler]: Unknown extern function __copy_from_user_overflow [2022-11-25 17:01:16,337 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 17:01:16,337 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-11-25 17:01:16,338 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-11-25 17:01:16,338 WARN L623 FunctionHandler]: Unknown extern function __copy_to_user_overflow [2022-11-25 17:01:16,341 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-25 17:01:16,342 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-25 17:01:16,342 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-11-25 17:01:16,343 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-11-25 17:01:16,345 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-11-25 17:01:16,346 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 17:01:16,347 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-11-25 17:01:16,349 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 17:01:16,355 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-25 17:01:16,355 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-11-25 17:01:16,357 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-11-25 17:01:16,357 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-11-25 17:01:16,358 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 17:01:16,359 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:16,360 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_irq [2022-11-25 17:01:16,361 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_byte [2022-11-25 17:01:16,362 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_word [2022-11-25 17:01:16,364 WARN L623 FunctionHandler]: Unknown extern function pci_bus_write_config_byte [2022-11-25 17:01:16,366 WARN L623 FunctionHandler]: Unknown extern function pci_bus_write_config_word [2022-11-25 17:01:16,367 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-11-25 17:01:16,376 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:16,376 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:16,376 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:16,377 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:16,377 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:16,378 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:16,378 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:16,378 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:16,378 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:16,379 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:16,379 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:16,380 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:16,381 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:16,381 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:16,382 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 17:01:16,382 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-11-25 17:01:16,383 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-25 17:01:16,386 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:16,387 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:16,390 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 17:01:16,391 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:16,391 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:16,392 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:16,392 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:16,393 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:16,393 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:16,394 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:16,394 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:16,395 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:16,395 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:16,396 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:16,396 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:16,399 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:16,400 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:16,400 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:16,403 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:16,407 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:16,407 WARN L623 FunctionHandler]: Unknown extern function synchronize_irq [2022-11-25 17:01:16,409 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:16,413 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:16,413 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-11-25 17:01:16,414 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-11-25 17:01:16,423 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:16,430 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-11-25 17:01:16,436 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-11-25 17:01:16,439 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-11-25 17:01:16,440 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-11-25 17:01:16,440 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-25 17:01:16,441 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-11-25 17:01:16,441 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-25 17:01:16,489 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:16,493 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:16,496 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:16,496 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:16,497 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:16,497 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:16,498 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:16,498 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:16,540 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:16,540 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:16,556 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-25 17:01:16,557 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 17:01:16,568 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:16,571 WARN L623 FunctionHandler]: Unknown extern function strncpy [2022-11-25 17:01:16,572 WARN L623 FunctionHandler]: Unknown extern function strstr [2022-11-25 17:01:16,587 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:16,589 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:16,589 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:16,590 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:16,591 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:16,596 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:16,596 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:16,627 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:16,627 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:16,628 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:16,628 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:16,629 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:16,631 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:16,632 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:16,637 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:16,638 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:16,638 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:16,638 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:16,639 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:16,639 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:16,639 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:16,640 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:16,640 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:16,640 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:16,644 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:16,645 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:01:16,646 WARN L623 FunctionHandler]: Unknown extern function strstr [2022-11-25 17:01:16,647 WARN L623 FunctionHandler]: Unknown extern function strstr [2022-11-25 17:01:16,647 WARN L623 FunctionHandler]: Unknown extern function strstr [2022-11-25 17:01:16,648 WARN L623 FunctionHandler]: Unknown extern function strstr [2022-11-25 17:01:16,648 WARN L623 FunctionHandler]: Unknown extern function strstr [2022-11-25 17:01:16,649 WARN L623 FunctionHandler]: Unknown extern function strstr [2022-11-25 17:01:16,649 WARN L623 FunctionHandler]: Unknown extern function strstr [2022-11-25 17:01:16,650 WARN L623 FunctionHandler]: Unknown extern function strstr [2022-11-25 17:01:16,651 WARN L623 FunctionHandler]: Unknown extern function strstr [2022-11-25 17:01:16,651 WARN L623 FunctionHandler]: Unknown extern function strstr [2022-11-25 17:01:16,652 WARN L623 FunctionHandler]: Unknown extern function strstr [2022-11-25 17:01:16,652 WARN L623 FunctionHandler]: Unknown extern function strstr [2022-11-25 17:01:16,653 WARN L623 FunctionHandler]: Unknown extern function strstr [2022-11-25 17:01:16,654 WARN L623 FunctionHandler]: Unknown extern function strstr [2022-11-25 17:01:16,655 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:16,655 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:16,656 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:16,656 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:16,656 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:16,656 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:16,657 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:16,657 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:16,658 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:16,658 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:16,659 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:16,659 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:16,659 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:16,660 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:16,660 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:16,661 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:16,661 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:16,662 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:16,663 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:16,663 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:16,663 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:16,664 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:16,664 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:16,665 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:16,665 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:16,666 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:16,666 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:16,667 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:16,668 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:16,670 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:16,671 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:16,671 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:16,672 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:16,672 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:16,672 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:16,673 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:16,673 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:16,674 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:16,674 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:16,675 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:16,675 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:16,678 WARN L623 FunctionHandler]: Unknown extern function capable [2022-11-25 17:01:16,680 WARN L623 FunctionHandler]: Unknown extern function capable [2022-11-25 17:01:16,680 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:01:16,681 WARN L623 FunctionHandler]: Unknown extern function capable [2022-11-25 17:01:16,682 WARN L623 FunctionHandler]: Unknown extern function capable [2022-11-25 17:01:16,683 WARN L623 FunctionHandler]: Unknown extern function capable [2022-11-25 17:01:16,692 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-11-25 17:01:16,693 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-11-25 17:01:16,693 WARN L623 FunctionHandler]: Unknown extern function eth_change_mtu [2022-11-25 17:01:16,694 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-11-25 17:01:16,694 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-11-25 17:01:16,695 WARN L623 FunctionHandler]: Unknown extern function eth_change_mtu [2022-11-25 17:01:16,695 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-11-25 17:01:16,696 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-11-25 17:01:16,696 WARN L623 FunctionHandler]: Unknown extern function eth_change_mtu [2022-11-25 17:01:16,696 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-11-25 17:01:16,697 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-11-25 17:01:16,697 WARN L623 FunctionHandler]: Unknown extern function eth_change_mtu [2022-11-25 17:01:16,698 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-11-25 17:01:16,699 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-11-25 17:01:16,700 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-11-25 17:01:16,708 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-11-25 17:01:16,711 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_register_netdev [2022-11-25 17:01:16,743 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-11-25 17:01:16,743 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-11-25 17:01:16,748 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-11-25 17:01:16,750 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-25 17:01:16,751 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-25 17:01:16,752 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-11-25 17:01:16,753 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-11-25 17:01:16,753 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-11-25 17:01:16,754 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-25 17:01:16,754 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-11-25 17:01:16,754 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-25 17:01:16,755 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-25 17:01:16,755 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-11-25 17:01:16,756 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-25 17:01:16,757 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-25 17:01:16,757 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-11-25 17:01:16,757 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-11-25 17:01:16,760 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-11-25 17:01:16,761 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-25 17:01:16,761 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 17:01:16,794 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_4a6e1f0b-b279-4931-9e63-e41de9a261c6/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[470813,470826] [2022-11-25 17:01:16,795 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_4a6e1f0b-b279-4931-9e63-e41de9a261c6/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[470982,470995] [2022-11-25 17:01:16,795 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_4a6e1f0b-b279-4931-9e63-e41de9a261c6/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[471149,471162] [2022-11-25 17:01:16,796 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_4a6e1f0b-b279-4931-9e63-e41de9a261c6/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[471317,471330] [2022-11-25 17:01:16,809 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:01:17,063 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:01:17,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:01:17 WrapperNode [2022-11-25 17:01:17,064 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:01:17,065 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:01:17,065 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:01:17,066 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:01:17,073 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:01:17" (1/1) ... [2022-11-25 17:01:17,253 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:01:17" (1/1) ... [2022-11-25 17:01:17,505 INFO L138 Inliner]: procedures = 526, calls = 4210, calls flagged for inlining = 232, calls inlined = 215, statements flattened = 8627 [2022-11-25 17:01:17,505 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:01:17,506 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:01:17,506 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:01:17,506 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:01:17,516 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:01:17" (1/1) ... [2022-11-25 17:01:17,516 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:01:17" (1/1) ... [2022-11-25 17:01:17,626 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:01:17" (1/1) ... [2022-11-25 17:01:17,635 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:01:17" (1/1) ... [2022-11-25 17:01:17,834 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:01:17" (1/1) ... [2022-11-25 17:01:17,900 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:01:17" (1/1) ... [2022-11-25 17:01:17,943 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:01:17" (1/1) ... [2022-11-25 17:01:18,080 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:01:17" (1/1) ... [2022-11-25 17:01:18,139 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:01:18,156 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:01:18,156 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:01:18,156 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:01:18,157 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:01:17" (1/1) ... [2022-11-25 17:01:18,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:01:18,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:01:18,240 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:01:18,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:01:18,398 INFO L130 BoogieDeclarations]: Found specification of procedure disable_ast [2022-11-25 17:01:18,414 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_ast [2022-11-25 17:01:18,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-25 17:01:18,415 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-25 17:01:18,415 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-25 17:01:18,415 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-25 17:01:18,415 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-25 17:01:18,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-25 17:01:18,415 INFO L130 BoogieDeclarations]: Found specification of procedure type4_infoblock [2022-11-25 17:01:18,415 INFO L138 BoogieDeclarations]: Found implementation of procedure type4_infoblock [2022-11-25 17:01:18,416 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_put_cache [2022-11-25 17:01:18,416 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_put_cache [2022-11-25 17:01:18,416 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2022-11-25 17:01:18,416 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2022-11-25 17:01:18,416 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_de4x5_private [2022-11-25 17:01:18,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_de4x5_private [2022-11-25 17:01:18,416 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-25 17:01:18,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-25 17:01:18,417 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_de4x5_private [2022-11-25 17:01:18,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_de4x5_private [2022-11-25 17:01:18,417 INFO L130 BoogieDeclarations]: Found specification of procedure getfrom_mii [2022-11-25 17:01:18,417 INFO L138 BoogieDeclarations]: Found implementation of procedure getfrom_mii [2022-11-25 17:01:18,417 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_switch_mac_port [2022-11-25 17:01:18,417 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_switch_mac_port [2022-11-25 17:01:18,417 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-25 17:01:18,418 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-25 17:01:18,418 INFO L130 BoogieDeclarations]: Found specification of procedure srom_latch [2022-11-25 17:01:18,418 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_latch [2022-11-25 17:01:18,418 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_69 [2022-11-25 17:01:18,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_69 [2022-11-25 17:01:18,418 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-25 17:01:18,419 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-25 17:01:18,419 INFO L130 BoogieDeclarations]: Found specification of procedure build_setup_frame [2022-11-25 17:01:18,419 INFO L138 BoogieDeclarations]: Found implementation of procedure build_setup_frame [2022-11-25 17:01:18,419 INFO L130 BoogieDeclarations]: Found specification of procedure type2_infoblock [2022-11-25 17:01:18,419 INFO L138 BoogieDeclarations]: Found implementation of procedure type2_infoblock [2022-11-25 17:01:18,419 INFO L130 BoogieDeclarations]: Found specification of procedure type0_infoblock [2022-11-25 17:01:18,419 INFO L138 BoogieDeclarations]: Found implementation of procedure type0_infoblock [2022-11-25 17:01:18,420 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2022-11-25 17:01:18,420 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2022-11-25 17:01:18,420 INFO L130 BoogieDeclarations]: Found specification of procedure DevicePresent [2022-11-25 17:01:18,420 INFO L138 BoogieDeclarations]: Found implementation of procedure DevicePresent [2022-11-25 17:01:18,420 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2022-11-25 17:01:18,420 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2022-11-25 17:01:18,420 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-25 17:01:18,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-25 17:01:18,421 INFO L130 BoogieDeclarations]: Found specification of procedure dc21143_infoleaf [2022-11-25 17:01:18,421 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21143_infoleaf [2022-11-25 17:01:18,421 INFO L130 BoogieDeclarations]: Found specification of procedure set_multicast_list [2022-11-25 17:01:18,421 INFO L138 BoogieDeclarations]: Found implementation of procedure set_multicast_list [2022-11-25 17:01:18,421 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-25 17:01:18,421 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-25 17:01:18,421 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-25 17:01:18,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-25 17:01:18,422 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2022-11-25 17:01:18,422 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_sw_reset [2022-11-25 17:01:18,422 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_sw_reset [2022-11-25 17:01:18,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 17:01:18,422 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2022-11-25 17:01:18,422 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2022-11-25 17:01:18,422 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-11-25 17:01:18,423 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-11-25 17:01:18,423 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2022-11-25 17:01:18,423 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2022-11-25 17:01:18,423 INFO L130 BoogieDeclarations]: Found specification of procedure is_spd_100 [2022-11-25 17:01:18,423 INFO L138 BoogieDeclarations]: Found implementation of procedure is_spd_100 [2022-11-25 17:01:18,423 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-25 17:01:18,423 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-25 17:01:18,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-25 17:01:18,424 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-25 17:01:18,424 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-25 17:01:18,424 INFO L130 BoogieDeclarations]: Found specification of procedure sendto_mii [2022-11-25 17:01:18,424 INFO L138 BoogieDeclarations]: Found implementation of procedure sendto_mii [2022-11-25 17:01:18,424 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_free_rx_buffs [2022-11-25 17:01:18,424 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_free_rx_buffs [2022-11-25 17:01:18,424 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-25 17:01:18,424 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-25 17:01:18,425 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-25 17:01:18,425 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-25 17:01:18,425 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2022-11-25 17:01:18,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2022-11-25 17:01:18,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-25 17:01:18,425 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-25 17:01:18,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-25 17:01:18,425 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 17:01:18,426 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-25 17:01:18,426 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-25 17:01:18,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-25 17:01:18,426 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-25 17:01:18,426 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-25 17:01:18,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-25 17:01:18,426 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-25 17:01:18,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-25 17:01:18,427 INFO L130 BoogieDeclarations]: Found specification of procedure ping_media [2022-11-25 17:01:18,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ping_media [2022-11-25 17:01:18,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-25 17:01:18,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-25 17:01:18,427 INFO L130 BoogieDeclarations]: Found specification of procedure srom_autoconf [2022-11-25 17:01:18,427 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_autoconf [2022-11-25 17:01:18,427 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-25 17:01:18,428 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-25 17:01:18,428 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-25 17:01:18,428 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-25 17:01:18,428 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_tx [2022-11-25 17:01:18,428 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_tx [2022-11-25 17:01:18,428 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-25 17:01:18,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-25 17:01:18,428 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2022-11-25 17:01:18,429 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2022-11-25 17:01:18,429 INFO L130 BoogieDeclarations]: Found specification of procedure srom_rd [2022-11-25 17:01:18,429 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_rd [2022-11-25 17:01:18,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 17:01:18,429 INFO L130 BoogieDeclarations]: Found specification of procedure SetMulticastFilter [2022-11-25 17:01:18,429 INFO L138 BoogieDeclarations]: Found implementation of procedure SetMulticastFilter [2022-11-25 17:01:18,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:01:18,429 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_ioctl [2022-11-25 17:01:18,430 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_ioctl [2022-11-25 17:01:18,430 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-25 17:01:18,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-25 17:01:18,430 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-25 17:01:18,431 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-25 17:01:18,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 17:01:18,431 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-25 17:01:18,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-25 17:01:18,431 INFO L130 BoogieDeclarations]: Found specification of procedure getfrom_srom [2022-11-25 17:01:18,431 INFO L138 BoogieDeclarations]: Found implementation of procedure getfrom_srom [2022-11-25 17:01:18,432 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-11-25 17:01:18,432 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-11-25 17:01:18,432 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-25 17:01:18,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-25 17:01:18,432 INFO L130 BoogieDeclarations]: Found specification of procedure mii_swap [2022-11-25 17:01:18,432 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_swap [2022-11-25 17:01:18,432 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_reset_phy [2022-11-25 17:01:18,432 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_reset_phy [2022-11-25 17:01:18,433 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_putb_cache [2022-11-25 17:01:18,433 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_putb_cache [2022-11-25 17:01:18,433 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-25 17:01:18,433 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-25 17:01:18,433 INFO L130 BoogieDeclarations]: Found specification of procedure dc21142_infoleaf [2022-11-25 17:01:18,433 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21142_infoleaf [2022-11-25 17:01:18,433 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-25 17:01:18,433 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-25 17:01:18,434 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_get_stats [2022-11-25 17:01:18,434 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_get_stats [2022-11-25 17:01:18,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-25 17:01:18,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-25 17:01:18,434 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-11-25 17:01:18,434 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-11-25 17:01:18,434 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_init_connection [2022-11-25 17:01:18,434 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_init_connection [2022-11-25 17:01:18,435 INFO L130 BoogieDeclarations]: Found specification of procedure mii_wr [2022-11-25 17:01:18,435 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_wr [2022-11-25 17:01:18,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:01:18,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:01:18,435 INFO L130 BoogieDeclarations]: Found specification of procedure dc21040_state [2022-11-25 17:01:18,435 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21040_state [2022-11-25 17:01:18,435 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-11-25 17:01:18,435 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-11-25 17:01:18,436 INFO L130 BoogieDeclarations]: Found specification of procedure type3_infoblock [2022-11-25 17:01:18,436 INFO L138 BoogieDeclarations]: Found implementation of procedure type3_infoblock [2022-11-25 17:01:18,436 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-25 17:01:18,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-25 17:01:18,444 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-25 17:01:18,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-25 17:01:18,445 INFO L130 BoogieDeclarations]: Found specification of procedure reset_init_sia [2022-11-25 17:01:18,445 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_init_sia [2022-11-25 17:01:18,445 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-25 17:01:18,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-25 17:01:18,445 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-11-25 17:01:18,445 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-11-25 17:01:18,445 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_alloc_rx_buff [2022-11-25 17:01:18,445 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_alloc_rx_buff [2022-11-25 17:01:18,446 INFO L130 BoogieDeclarations]: Found specification of procedure test_for_100Mb [2022-11-25 17:01:18,446 INFO L138 BoogieDeclarations]: Found implementation of procedure test_for_100Mb [2022-11-25 17:01:18,446 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-25 17:01:18,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-25 17:01:18,446 INFO L130 BoogieDeclarations]: Found specification of procedure type5_infoblock [2022-11-25 17:01:18,446 INFO L138 BoogieDeclarations]: Found implementation of procedure type5_infoblock [2022-11-25 17:01:18,446 INFO L130 BoogieDeclarations]: Found specification of procedure load_packet [2022-11-25 17:01:18,446 INFO L138 BoogieDeclarations]: Found implementation of procedure load_packet [2022-11-25 17:01:18,447 INFO L130 BoogieDeclarations]: Found specification of procedure dc21140m_autoconf [2022-11-25 17:01:18,447 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21140m_autoconf [2022-11-25 17:01:18,447 INFO L130 BoogieDeclarations]: Found specification of procedure is_100_up [2022-11-25 17:01:18,447 INFO L138 BoogieDeclarations]: Found implementation of procedure is_100_up [2022-11-25 17:01:18,447 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_open [2022-11-25 17:01:18,447 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_open [2022-11-25 17:01:18,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-25 17:01:18,447 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-25 17:01:18,448 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ta [2022-11-25 17:01:18,448 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ta [2022-11-25 17:01:18,448 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-25 17:01:18,448 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-25 17:01:18,448 INFO L130 BoogieDeclarations]: Found specification of procedure dc21040_autoconf [2022-11-25 17:01:18,448 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21040_autoconf [2022-11-25 17:01:18,448 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2022-11-25 17:01:18,448 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2022-11-25 17:01:18,449 INFO L130 BoogieDeclarations]: Found specification of procedure test_mii_reg [2022-11-25 17:01:18,449 INFO L138 BoogieDeclarations]: Found implementation of procedure test_mii_reg [2022-11-25 17:01:18,449 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_cache_state [2022-11-25 17:01:18,449 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_cache_state [2022-11-25 17:01:18,449 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-11-25 17:01:18,449 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-11-25 17:01:18,449 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_pci_remove [2022-11-25 17:01:18,449 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_pci_remove [2022-11-25 17:01:18,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 17:01:18,450 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_dbg_media [2022-11-25 17:01:18,450 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_dbg_media [2022-11-25 17:01:18,450 INFO L130 BoogieDeclarations]: Found specification of procedure autoconf_media [2022-11-25 17:01:18,450 INFO L138 BoogieDeclarations]: Found implementation of procedure autoconf_media [2022-11-25 17:01:18,450 INFO L130 BoogieDeclarations]: Found specification of procedure dc21041_autoconf [2022-11-25 17:01:18,450 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21041_autoconf [2022-11-25 17:01:18,450 INFO L130 BoogieDeclarations]: Found specification of procedure mii_rd [2022-11-25 17:01:18,451 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_rd [2022-11-25 17:01:18,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 17:01:18,451 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_ast [2022-11-25 17:01:18,451 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_ast [2022-11-25 17:01:18,451 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le32 [2022-11-25 17:01:18,451 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le32 [2022-11-25 17:01:18,451 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u_char~0~X~$Pointer$~TO~int [2022-11-25 17:01:18,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u_char~0~X~$Pointer$~TO~int [2022-11-25 17:01:18,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-25 17:01:18,452 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-25 17:01:18,452 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-25 17:01:18,452 INFO L130 BoogieDeclarations]: Found specification of procedure is_10_up [2022-11-25 17:01:18,452 INFO L138 BoogieDeclarations]: Found implementation of procedure is_10_up [2022-11-25 17:01:18,452 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-25 17:01:18,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-25 17:01:18,452 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2022-11-25 17:01:18,452 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2022-11-25 17:01:18,453 INFO L130 BoogieDeclarations]: Found specification of procedure is_anc_capable [2022-11-25 17:01:18,453 INFO L138 BoogieDeclarations]: Found implementation of procedure is_anc_capable [2022-11-25 17:01:18,453 INFO L130 BoogieDeclarations]: Found specification of procedure type1_infoblock [2022-11-25 17:01:18,453 INFO L138 BoogieDeclarations]: Found implementation of procedure type1_infoblock [2022-11-25 17:01:18,453 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-25 17:01:18,453 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-25 17:01:18,453 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-11-25 17:01:18,453 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-11-25 17:01:18,454 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2022-11-25 17:01:18,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2022-11-25 17:01:18,454 INFO L130 BoogieDeclarations]: Found specification of procedure dc21140_infoleaf [2022-11-25 17:01:18,454 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21140_infoleaf [2022-11-25 17:01:18,454 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-25 17:01:18,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-25 17:01:18,454 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2022-11-25 17:01:18,454 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2022-11-25 17:01:18,455 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_queue_pkt [2022-11-25 17:01:18,455 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_queue_pkt [2022-11-25 17:01:18,455 INFO L130 BoogieDeclarations]: Found specification of procedure test_media [2022-11-25 17:01:18,455 INFO L138 BoogieDeclarations]: Found implementation of procedure test_media [2022-11-25 17:01:18,455 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_free_tx_buffs [2022-11-25 17:01:18,455 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_free_tx_buffs [2022-11-25 17:01:18,455 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_insert [2022-11-25 17:01:18,455 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_insert [2022-11-25 17:01:18,470 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-25 17:01:18,470 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-25 17:01:18,471 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-25 17:01:18,471 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-25 17:01:18,471 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-25 17:01:18,471 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-25 17:01:18,471 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_init [2022-11-25 17:01:18,471 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_init [2022-11-25 17:01:18,471 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-11-25 17:01:18,471 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-11-25 17:01:18,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_73 [2022-11-25 17:01:18,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_73 [2022-11-25 17:01:18,471 INFO L130 BoogieDeclarations]: Found specification of procedure dc21041_infoleaf [2022-11-25 17:01:18,472 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21041_infoleaf [2022-11-25 17:01:18,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 17:01:18,472 INFO L130 BoogieDeclarations]: Found specification of procedure srom_exec [2022-11-25 17:01:18,472 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_exec [2022-11-25 17:01:18,472 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-25 17:01:18,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-25 17:01:18,472 INFO L130 BoogieDeclarations]: Found specification of procedure gep_wr [2022-11-25 17:01:18,472 INFO L138 BoogieDeclarations]: Found implementation of procedure gep_wr [2022-11-25 17:01:18,472 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-25 17:01:18,472 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-25 17:01:18,473 INFO L130 BoogieDeclarations]: Found specification of procedure sendto_srom [2022-11-25 17:01:18,473 INFO L138 BoogieDeclarations]: Found implementation of procedure sendto_srom [2022-11-25 17:01:18,473 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-25 17:01:18,473 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-25 17:01:18,473 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_get_cache [2022-11-25 17:01:18,473 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_get_cache [2022-11-25 17:01:18,473 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_suspect_state [2022-11-25 17:01:18,473 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_suspect_state [2022-11-25 17:01:18,473 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_dbg_mii [2022-11-25 17:01:18,473 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_dbg_mii [2022-11-25 17:01:18,473 INFO L130 BoogieDeclarations]: Found specification of procedure compact_infoblock [2022-11-25 17:01:18,474 INFO L138 BoogieDeclarations]: Found implementation of procedure compact_infoblock [2022-11-25 17:01:18,474 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-25 17:01:18,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-25 17:01:18,474 INFO L130 BoogieDeclarations]: Found specification of procedure gep_rd [2022-11-25 17:01:18,474 INFO L138 BoogieDeclarations]: Found implementation of procedure gep_rd [2022-11-25 17:01:18,474 INFO L130 BoogieDeclarations]: Found specification of procedure mii_address [2022-11-25 17:01:18,474 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_address [2022-11-25 17:01:18,474 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_free_tx_buff [2022-11-25 17:01:18,474 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_free_tx_buff [2022-11-25 17:01:18,474 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_setup_intr [2022-11-25 17:01:18,474 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_setup_intr [2022-11-25 17:01:18,475 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_save_skbs [2022-11-25 17:01:18,475 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_save_skbs [2022-11-25 17:01:18,475 INFO L130 BoogieDeclarations]: Found specification of procedure dc2114x_autoconf [2022-11-25 17:01:18,475 INFO L138 BoogieDeclarations]: Found implementation of procedure dc2114x_autoconf [2022-11-25 17:01:18,475 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-11-25 17:01:18,475 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-11-25 17:01:18,475 INFO L130 BoogieDeclarations]: Found specification of procedure srom_map_media [2022-11-25 17:01:18,475 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_map_media [2022-11-25 17:01:18,475 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_strncmp [2022-11-25 17:01:18,475 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_strncmp [2022-11-25 17:01:18,475 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2022-11-25 17:01:18,476 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2022-11-25 17:01:18,476 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_close [2022-11-25 17:01:18,476 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_close [2022-11-25 17:01:18,476 INFO L130 BoogieDeclarations]: Found specification of procedure yawn [2022-11-25 17:01:18,476 INFO L138 BoogieDeclarations]: Found implementation of procedure yawn [2022-11-25 17:01:18,476 INFO L130 BoogieDeclarations]: Found specification of procedure mii_wdata [2022-11-25 17:01:18,476 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_wdata [2022-11-25 17:01:18,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 17:01:18,476 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-25 17:01:18,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-25 17:01:18,476 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-11-25 17:01:19,984 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:01:19,988 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:01:20,424 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-25 17:01:39,808 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:01:39,841 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:01:39,841 INFO L300 CfgBuilder]: Removed 18 assume(true) statements. [2022-11-25 17:01:39,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:01:39 BoogieIcfgContainer [2022-11-25 17:01:39,847 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:01:39,849 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:01:39,849 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:01:39,852 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:01:39,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:01:11" (1/3) ... [2022-11-25 17:01:39,855 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@510768c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:01:39, skipping insertion in model container [2022-11-25 17:01:39,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:01:17" (2/3) ... [2022-11-25 17:01:39,856 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@510768c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:01:39, skipping insertion in model container [2022-11-25 17:01:39,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:01:39" (3/3) ... [2022-11-25 17:01:39,862 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i [2022-11-25 17:01:39,881 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:01:39,881 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-25 17:01:40,020 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:01:40,028 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;@56d4c63c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:01:40,029 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-25 17:01:40,044 INFO L276 IsEmpty]: Start isEmpty. Operand has 3808 states, 2698 states have (on average 1.3606375092661231) internal successors, (3671), 2775 states have internal predecessors, (3671), 972 states have call successors, (972), 151 states have call predecessors, (972), 150 states have return successors, (963), 949 states have call predecessors, (963), 963 states have call successors, (963) [2022-11-25 17:01:40,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-11-25 17:01:40,054 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:01:40,055 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-25 17:01:40,056 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:01:40,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:01:40,061 INFO L85 PathProgramCache]: Analyzing trace with hash 728017433, now seen corresponding path program 1 times [2022-11-25 17:01:40,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:01:40,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093219005] [2022-11-25 17:01:40,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:01:40,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:01:40,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:41,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-25 17:01:41,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:41,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-25 17:01:41,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:41,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-25 17:01:41,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:41,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:01:41,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:41,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-25 17:01:41,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:41,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 17:01:41,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:41,342 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-25 17:01:41,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:01:41,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093219005] [2022-11-25 17:01:41,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093219005] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:01:41,343 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:01:41,343 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:01:41,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791793546] [2022-11-25 17:01:41,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:01:41,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:01:41,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:01:41,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:01:41,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:01:41,405 INFO L87 Difference]: Start difference. First operand has 3808 states, 2698 states have (on average 1.3606375092661231) internal successors, (3671), 2775 states have internal predecessors, (3671), 972 states have call successors, (972), 151 states have call predecessors, (972), 150 states have return successors, (963), 949 states have call predecessors, (963), 963 states have call successors, (963) Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-25 17:01:41,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:01:41,961 INFO L93 Difference]: Finished difference Result 7543 states and 11315 transitions. [2022-11-25 17:01:41,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:01:41,964 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 48 [2022-11-25 17:01:41,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:01:42,018 INFO L225 Difference]: With dead ends: 7543 [2022-11-25 17:01:42,018 INFO L226 Difference]: Without dead ends: 3746 [2022-11-25 17:01:42,058 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:01:42,063 INFO L413 NwaCegarLoop]: 5493 mSDtfsCounter, 5471 mSDsluCounter, 10972 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5484 SdHoareTripleChecker+Valid, 16465 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:01:42,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5484 Valid, 16465 Invalid, 21 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:01:42,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3746 states. [2022-11-25 17:01:42,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3746 to 3746. [2022-11-25 17:01:42,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3746 states, 2646 states have (on average 1.354875283446712) internal successors, (3585), 2704 states have internal predecessors, (3585), 947 states have call successors, (947), 151 states have call predecessors, (947), 150 states have return successors, (944), 930 states have call predecessors, (944), 944 states have call successors, (944) [2022-11-25 17:01:42,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3746 states to 3746 states and 5476 transitions. [2022-11-25 17:01:42,393 INFO L78 Accepts]: Start accepts. Automaton has 3746 states and 5476 transitions. Word has length 48 [2022-11-25 17:01:42,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:01:42,394 INFO L495 AbstractCegarLoop]: Abstraction has 3746 states and 5476 transitions. [2022-11-25 17:01:42,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-25 17:01:42,395 INFO L276 IsEmpty]: Start isEmpty. Operand 3746 states and 5476 transitions. [2022-11-25 17:01:42,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-25 17:01:42,398 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:01:42,398 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:01:42,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:01:42,399 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:01:42,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:01:42,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1338368003, now seen corresponding path program 1 times [2022-11-25 17:01:42,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:01:42,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99552738] [2022-11-25 17:01:42,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:01:42,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:01:42,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:42,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-25 17:01:42,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:42,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-25 17:01:42,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:42,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-25 17:01:43,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:43,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:01:43,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:43,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-25 17:01:43,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:43,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 17:01:43,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:43,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-25 17:01:43,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:43,059 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-25 17:01:43,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:01:43,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99552738] [2022-11-25 17:01:43,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99552738] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:01:43,060 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:01:43,060 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:01:43,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726201705] [2022-11-25 17:01:43,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:01:43,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:01:43,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:01:43,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:01:43,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:01:43,064 INFO L87 Difference]: Start difference. First operand 3746 states and 5476 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-25 17:01:43,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:01:43,425 INFO L93 Difference]: Finished difference Result 3752 states and 5481 transitions. [2022-11-25 17:01:43,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:01:43,426 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 53 [2022-11-25 17:01:43,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:01:43,459 INFO L225 Difference]: With dead ends: 3752 [2022-11-25 17:01:43,459 INFO L226 Difference]: Without dead ends: 3750 [2022-11-25 17:01:43,463 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:01:43,464 INFO L413 NwaCegarLoop]: 5473 mSDtfsCounter, 5444 mSDsluCounter, 10926 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5455 SdHoareTripleChecker+Valid, 16399 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:01:43,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5455 Valid, 16399 Invalid, 21 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:01:43,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3750 states. [2022-11-25 17:01:43,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3750 to 3750. [2022-11-25 17:01:43,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3750 states, 2649 states have (on average 1.3544733861834655) internal successors, (3588), 2707 states have internal predecessors, (3588), 947 states have call successors, (947), 152 states have call predecessors, (947), 151 states have return successors, (944), 930 states have call predecessors, (944), 944 states have call successors, (944) [2022-11-25 17:01:43,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3750 states to 3750 states and 5479 transitions. [2022-11-25 17:01:43,729 INFO L78 Accepts]: Start accepts. Automaton has 3750 states and 5479 transitions. Word has length 53 [2022-11-25 17:01:43,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:01:43,730 INFO L495 AbstractCegarLoop]: Abstraction has 3750 states and 5479 transitions. [2022-11-25 17:01:43,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-25 17:01:43,731 INFO L276 IsEmpty]: Start isEmpty. Operand 3750 states and 5479 transitions. [2022-11-25 17:01:43,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-25 17:01:43,740 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:01:43,740 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-25 17:01:43,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 17:01:43,741 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:01:43,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:01:43,741 INFO L85 PathProgramCache]: Analyzing trace with hash 347328601, now seen corresponding path program 1 times [2022-11-25 17:01:43,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:01:43,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263158872] [2022-11-25 17:01:43,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:01:43,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:01:43,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:44,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-25 17:01:44,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:44,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-25 17:01:44,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:44,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-25 17:01:44,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:44,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:01:44,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:44,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-25 17:01:44,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:44,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 17:01:44,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:44,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-25 17:01:44,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:44,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-25 17:01:44,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:44,310 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-25 17:01:44,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:01:44,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263158872] [2022-11-25 17:01:44,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263158872] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:01:44,316 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:01:44,316 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:01:44,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228393321] [2022-11-25 17:01:44,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:01:44,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:01:44,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:01:44,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:01:44,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:01:44,319 INFO L87 Difference]: Start difference. First operand 3750 states and 5479 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-25 17:01:44,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:01:44,661 INFO L93 Difference]: Finished difference Result 3756 states and 5484 transitions. [2022-11-25 17:01:44,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:01:44,661 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 58 [2022-11-25 17:01:44,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:01:44,686 INFO L225 Difference]: With dead ends: 3756 [2022-11-25 17:01:44,686 INFO L226 Difference]: Without dead ends: 3754 [2022-11-25 17:01:44,690 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:01:44,691 INFO L413 NwaCegarLoop]: 5473 mSDtfsCounter, 5444 mSDsluCounter, 10926 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5454 SdHoareTripleChecker+Valid, 16399 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:01:44,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5454 Valid, 16399 Invalid, 21 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:01:44,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3754 states. [2022-11-25 17:01:44,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3754 to 3754. [2022-11-25 17:01:44,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3754 states, 2652 states have (on average 1.3540723981900453) internal successors, (3591), 2710 states have internal predecessors, (3591), 947 states have call successors, (947), 153 states have call predecessors, (947), 152 states have return successors, (944), 930 states have call predecessors, (944), 944 states have call successors, (944) [2022-11-25 17:01:44,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3754 states to 3754 states and 5482 transitions. [2022-11-25 17:01:44,955 INFO L78 Accepts]: Start accepts. Automaton has 3754 states and 5482 transitions. Word has length 58 [2022-11-25 17:01:44,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:01:44,956 INFO L495 AbstractCegarLoop]: Abstraction has 3754 states and 5482 transitions. [2022-11-25 17:01:44,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-25 17:01:44,956 INFO L276 IsEmpty]: Start isEmpty. Operand 3754 states and 5482 transitions. [2022-11-25 17:01:44,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-25 17:01:44,957 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:01:44,958 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-11-25 17:01:44,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 17:01:44,958 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:01:44,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:01:44,959 INFO L85 PathProgramCache]: Analyzing trace with hash -2048716483, now seen corresponding path program 1 times [2022-11-25 17:01:44,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:01:44,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223609348] [2022-11-25 17:01:44,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:01:44,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:01:45,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:45,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-25 17:01:45,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:45,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-25 17:01:45,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:45,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-25 17:01:45,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:45,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:01:45,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:45,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-25 17:01:45,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:45,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 17:01:45,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:45,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-25 17:01:45,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:45,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-25 17:01:45,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:45,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-25 17:01:45,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:45,750 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-25 17:01:45,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:01:45,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223609348] [2022-11-25 17:01:45,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223609348] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:01:45,751 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:01:45,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:01:45,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891580685] [2022-11-25 17:01:45,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:01:45,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:01:45,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:01:45,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:01:45,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:01:45,754 INFO L87 Difference]: Start difference. First operand 3754 states and 5482 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-25 17:01:46,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:01:46,214 INFO L93 Difference]: Finished difference Result 3760 states and 5487 transitions. [2022-11-25 17:01:46,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:01:46,215 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 63 [2022-11-25 17:01:46,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:01:46,244 INFO L225 Difference]: With dead ends: 3760 [2022-11-25 17:01:46,245 INFO L226 Difference]: Without dead ends: 3758 [2022-11-25 17:01:46,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:01:46,250 INFO L413 NwaCegarLoop]: 5473 mSDtfsCounter, 5444 mSDsluCounter, 10926 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5453 SdHoareTripleChecker+Valid, 16399 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:01:46,251 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5453 Valid, 16399 Invalid, 21 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:01:46,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3758 states. [2022-11-25 17:01:46,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3758 to 3758. [2022-11-25 17:01:46,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3758 states, 2655 states have (on average 1.3536723163841808) internal successors, (3594), 2713 states have internal predecessors, (3594), 947 states have call successors, (947), 154 states have call predecessors, (947), 153 states have return successors, (944), 930 states have call predecessors, (944), 944 states have call successors, (944) [2022-11-25 17:01:46,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3758 states to 3758 states and 5485 transitions. [2022-11-25 17:01:46,638 INFO L78 Accepts]: Start accepts. Automaton has 3758 states and 5485 transitions. Word has length 63 [2022-11-25 17:01:46,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:01:46,639 INFO L495 AbstractCegarLoop]: Abstraction has 3758 states and 5485 transitions. [2022-11-25 17:01:46,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-25 17:01:46,640 INFO L276 IsEmpty]: Start isEmpty. Operand 3758 states and 5485 transitions. [2022-11-25 17:01:46,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-25 17:01:46,642 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:01:46,642 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 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] [2022-11-25 17:01:46,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 17:01:46,643 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:01:46,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:01:46,644 INFO L85 PathProgramCache]: Analyzing trace with hash 896128665, now seen corresponding path program 1 times [2022-11-25 17:01:46,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:01:46,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299748119] [2022-11-25 17:01:46,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:01:46,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:01:46,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:47,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-25 17:01:47,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:47,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-25 17:01:47,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:47,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-25 17:01:47,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:47,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:01:47,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:47,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-25 17:01:47,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:47,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 17:01:47,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:47,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-25 17:01:47,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:47,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-25 17:01:47,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:47,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-25 17:01:47,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:47,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-25 17:01:47,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:47,360 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-11-25 17:01:47,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:01:47,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299748119] [2022-11-25 17:01:47,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299748119] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:01:47,362 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:01:47,362 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:01:47,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355664704] [2022-11-25 17:01:47,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:01:47,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:01:47,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:01:47,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:01:47,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:01:47,365 INFO L87 Difference]: Start difference. First operand 3758 states and 5485 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-25 17:01:47,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:01:47,828 INFO L93 Difference]: Finished difference Result 3764 states and 5490 transitions. [2022-11-25 17:01:47,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:01:47,829 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 68 [2022-11-25 17:01:47,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:01:47,861 INFO L225 Difference]: With dead ends: 3764 [2022-11-25 17:01:47,861 INFO L226 Difference]: Without dead ends: 3762 [2022-11-25 17:01:47,865 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:01:47,866 INFO L413 NwaCegarLoop]: 5473 mSDtfsCounter, 5444 mSDsluCounter, 10926 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5452 SdHoareTripleChecker+Valid, 16399 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:01:47,870 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5452 Valid, 16399 Invalid, 21 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:01:47,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3762 states. [2022-11-25 17:01:48,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3762 to 3762. [2022-11-25 17:01:48,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3762 states, 2658 states have (on average 1.353273137697517) internal successors, (3597), 2716 states have internal predecessors, (3597), 947 states have call successors, (947), 155 states have call predecessors, (947), 154 states have return successors, (944), 930 states have call predecessors, (944), 944 states have call successors, (944) [2022-11-25 17:01:48,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3762 states to 3762 states and 5488 transitions. [2022-11-25 17:01:48,289 INFO L78 Accepts]: Start accepts. Automaton has 3762 states and 5488 transitions. Word has length 68 [2022-11-25 17:01:48,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:01:48,290 INFO L495 AbstractCegarLoop]: Abstraction has 3762 states and 5488 transitions. [2022-11-25 17:01:48,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-25 17:01:48,291 INFO L276 IsEmpty]: Start isEmpty. Operand 3762 states and 5488 transitions. [2022-11-25 17:01:48,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-11-25 17:01:48,292 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:01:48,292 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 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] [2022-11-25 17:01:48,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 17:01:48,293 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:01:48,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:01:48,293 INFO L85 PathProgramCache]: Analyzing trace with hash 292627069, now seen corresponding path program 1 times [2022-11-25 17:01:48,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:01:48,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558469432] [2022-11-25 17:01:48,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:01:48,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:01:48,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:48,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-25 17:01:48,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:48,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-25 17:01:48,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:48,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-25 17:01:48,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:48,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:01:48,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:48,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-25 17:01:48,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:48,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 17:01:48,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:48,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-25 17:01:48,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:48,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-25 17:01:48,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:48,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-25 17:01:48,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:48,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-25 17:01:48,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:48,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-25 17:01:48,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:48,992 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-25 17:01:48,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:01:48,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558469432] [2022-11-25 17:01:48,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558469432] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:01:48,993 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:01:48,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:01:48,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781275182] [2022-11-25 17:01:48,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:01:48,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:01:48,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:01:48,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:01:48,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:01:48,995 INFO L87 Difference]: Start difference. First operand 3762 states and 5488 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-25 17:01:49,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:01:49,451 INFO L93 Difference]: Finished difference Result 3768 states and 5493 transitions. [2022-11-25 17:01:49,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:01:49,452 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 73 [2022-11-25 17:01:49,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:01:49,477 INFO L225 Difference]: With dead ends: 3768 [2022-11-25 17:01:49,478 INFO L226 Difference]: Without dead ends: 3766 [2022-11-25 17:01:49,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:01:49,483 INFO L413 NwaCegarLoop]: 5473 mSDtfsCounter, 5444 mSDsluCounter, 10926 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5451 SdHoareTripleChecker+Valid, 16399 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:01:49,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5451 Valid, 16399 Invalid, 21 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:01:49,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3766 states. [2022-11-25 17:01:49,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3766 to 3766. [2022-11-25 17:01:49,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3766 states, 2661 states have (on average 1.3528748590755355) internal successors, (3600), 2719 states have internal predecessors, (3600), 947 states have call successors, (947), 156 states have call predecessors, (947), 155 states have return successors, (944), 930 states have call predecessors, (944), 944 states have call successors, (944) [2022-11-25 17:01:49,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3766 states to 3766 states and 5491 transitions. [2022-11-25 17:01:49,762 INFO L78 Accepts]: Start accepts. Automaton has 3766 states and 5491 transitions. Word has length 73 [2022-11-25 17:01:49,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:01:49,763 INFO L495 AbstractCegarLoop]: Abstraction has 3766 states and 5491 transitions. [2022-11-25 17:01:49,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-25 17:01:49,764 INFO L276 IsEmpty]: Start isEmpty. Operand 3766 states and 5491 transitions. [2022-11-25 17:01:49,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-25 17:01:49,765 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:01:49,765 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 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] [2022-11-25 17:01:49,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 17:01:49,765 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:01:49,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:01:49,766 INFO L85 PathProgramCache]: Analyzing trace with hash 577682649, now seen corresponding path program 1 times [2022-11-25 17:01:49,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:01:49,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324765319] [2022-11-25 17:01:49,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:01:49,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:01:49,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:50,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-25 17:01:50,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:50,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-25 17:01:50,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:50,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-25 17:01:50,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:50,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:01:50,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:50,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-25 17:01:50,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:50,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 17:01:50,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:50,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-25 17:01:50,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:50,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-25 17:01:50,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:50,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-25 17:01:50,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:50,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-25 17:01:50,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:50,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-25 17:01:50,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:50,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-25 17:01:50,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:50,315 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-11-25 17:01:50,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:01:50,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324765319] [2022-11-25 17:01:50,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324765319] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:01:50,316 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:01:50,316 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:01:50,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131820160] [2022-11-25 17:01:50,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:01:50,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:01:50,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:01:50,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:01:50,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:01:50,318 INFO L87 Difference]: Start difference. First operand 3766 states and 5491 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-25 17:01:50,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:01:50,802 INFO L93 Difference]: Finished difference Result 3772 states and 5496 transitions. [2022-11-25 17:01:50,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:01:50,803 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 78 [2022-11-25 17:01:50,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:01:50,846 INFO L225 Difference]: With dead ends: 3772 [2022-11-25 17:01:50,846 INFO L226 Difference]: Without dead ends: 3770 [2022-11-25 17:01:50,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:01:50,850 INFO L413 NwaCegarLoop]: 5473 mSDtfsCounter, 5444 mSDsluCounter, 10926 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5450 SdHoareTripleChecker+Valid, 16399 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:01:50,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5450 Valid, 16399 Invalid, 21 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:01:50,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3770 states. [2022-11-25 17:01:51,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3770 to 3770. [2022-11-25 17:01:51,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3770 states, 2664 states have (on average 1.3524774774774775) internal successors, (3603), 2722 states have internal predecessors, (3603), 947 states have call successors, (947), 157 states have call predecessors, (947), 156 states have return successors, (944), 930 states have call predecessors, (944), 944 states have call successors, (944) [2022-11-25 17:01:51,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3770 states to 3770 states and 5494 transitions. [2022-11-25 17:01:51,150 INFO L78 Accepts]: Start accepts. Automaton has 3770 states and 5494 transitions. Word has length 78 [2022-11-25 17:01:51,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:01:51,151 INFO L495 AbstractCegarLoop]: Abstraction has 3770 states and 5494 transitions. [2022-11-25 17:01:51,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-25 17:01:51,152 INFO L276 IsEmpty]: Start isEmpty. Operand 3770 states and 5494 transitions. [2022-11-25 17:01:51,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-11-25 17:01:51,157 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:01:51,157 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 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] [2022-11-25 17:01:51,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 17:01:51,157 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:01:51,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:01:51,158 INFO L85 PathProgramCache]: Analyzing trace with hash -2017669311, now seen corresponding path program 1 times [2022-11-25 17:01:51,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:01:51,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327245796] [2022-11-25 17:01:51,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:01:51,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:01:51,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:51,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-25 17:01:51,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:51,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-25 17:01:51,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:51,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-25 17:01:51,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:51,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:01:51,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:51,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-25 17:01:51,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:51,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 17:01:51,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:51,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-25 17:01:51,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:51,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-25 17:01:51,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:51,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-25 17:01:51,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:51,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-25 17:01:51,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:51,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-25 17:01:51,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:51,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-25 17:01:51,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:51,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-25 17:01:51,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:51,713 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-11-25 17:01:51,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:01:51,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327245796] [2022-11-25 17:01:51,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327245796] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:01:51,714 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:01:51,715 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:01:51,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928246131] [2022-11-25 17:01:51,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:01:51,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:01:51,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:01:51,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:01:51,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:01:51,717 INFO L87 Difference]: Start difference. First operand 3770 states and 5494 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-25 17:01:52,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:01:52,144 INFO L93 Difference]: Finished difference Result 4063 states and 5851 transitions. [2022-11-25 17:01:52,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:01:52,144 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (15), 3 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 90 [2022-11-25 17:01:52,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:01:52,167 INFO L225 Difference]: With dead ends: 4063 [2022-11-25 17:01:52,167 INFO L226 Difference]: Without dead ends: 4061 [2022-11-25 17:01:52,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:01:52,172 INFO L413 NwaCegarLoop]: 5581 mSDtfsCounter, 5145 mSDsluCounter, 11782 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5150 SdHoareTripleChecker+Valid, 17363 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:01:52,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5150 Valid, 17363 Invalid, 23 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:01:52,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4061 states. [2022-11-25 17:01:52,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4061 to 4055. [2022-11-25 17:01:52,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4055 states, 2860 states have (on average 1.343006993006993) internal successors, (3841), 2925 states have internal predecessors, (3841), 1003 states have call successors, (1003), 193 states have call predecessors, (1003), 189 states have return successors, (1001), 980 states have call predecessors, (1001), 1000 states have call successors, (1001) [2022-11-25 17:01:52,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4055 states to 4055 states and 5845 transitions. [2022-11-25 17:01:52,543 INFO L78 Accepts]: Start accepts. Automaton has 4055 states and 5845 transitions. Word has length 90 [2022-11-25 17:01:52,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:01:52,544 INFO L495 AbstractCegarLoop]: Abstraction has 4055 states and 5845 transitions. [2022-11-25 17:01:52,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-25 17:01:52,544 INFO L276 IsEmpty]: Start isEmpty. Operand 4055 states and 5845 transitions. [2022-11-25 17:01:52,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-25 17:01:52,545 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:01:52,546 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 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] [2022-11-25 17:01:52,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 17:01:52,546 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:01:52,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:01:52,547 INFO L85 PathProgramCache]: Analyzing trace with hash -1287742955, now seen corresponding path program 1 times [2022-11-25 17:01:52,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:01:52,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269665358] [2022-11-25 17:01:52,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:01:52,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:01:52,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:52,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-25 17:01:52,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:52,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-25 17:01:52,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:52,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-25 17:01:52,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:53,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:01:53,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:53,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-25 17:01:53,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:53,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 17:01:53,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:53,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-25 17:01:53,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:53,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-25 17:01:53,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:53,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-25 17:01:53,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:53,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-25 17:01:53,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:53,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-25 17:01:53,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:53,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-25 17:01:53,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:53,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-25 17:01:53,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:53,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-25 17:01:53,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:53,082 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2022-11-25 17:01:53,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:01:53,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269665358] [2022-11-25 17:01:53,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269665358] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:01:53,083 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:01:53,083 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:01:53,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739222338] [2022-11-25 17:01:53,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:01:53,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:01:53,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:01:53,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:01:53,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:01:53,085 INFO L87 Difference]: Start difference. First operand 4055 states and 5845 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-25 17:01:53,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:01:53,515 INFO L93 Difference]: Finished difference Result 4061 states and 5850 transitions. [2022-11-25 17:01:53,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:01:53,515 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 95 [2022-11-25 17:01:53,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:01:53,538 INFO L225 Difference]: With dead ends: 4061 [2022-11-25 17:01:53,538 INFO L226 Difference]: Without dead ends: 4059 [2022-11-25 17:01:53,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:01:53,543 INFO L413 NwaCegarLoop]: 5473 mSDtfsCounter, 5437 mSDsluCounter, 10926 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5441 SdHoareTripleChecker+Valid, 16399 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:01:53,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5441 Valid, 16399 Invalid, 21 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:01:53,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4059 states. [2022-11-25 17:01:53,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4059 to 4059. [2022-11-25 17:01:53,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4059 states, 2863 states have (on average 1.3426475724764233) internal successors, (3844), 2928 states have internal predecessors, (3844), 1003 states have call successors, (1003), 194 states have call predecessors, (1003), 190 states have return successors, (1001), 980 states have call predecessors, (1001), 1000 states have call successors, (1001) [2022-11-25 17:01:53,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4059 states to 4059 states and 5848 transitions. [2022-11-25 17:01:53,922 INFO L78 Accepts]: Start accepts. Automaton has 4059 states and 5848 transitions. Word has length 95 [2022-11-25 17:01:53,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:01:53,922 INFO L495 AbstractCegarLoop]: Abstraction has 4059 states and 5848 transitions. [2022-11-25 17:01:53,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-25 17:01:53,923 INFO L276 IsEmpty]: Start isEmpty. Operand 4059 states and 5848 transitions. [2022-11-25 17:01:53,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-25 17:01:53,925 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:01:53,925 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 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] [2022-11-25 17:01:53,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 17:01:53,925 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:01:53,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:01:53,926 INFO L85 PathProgramCache]: Analyzing trace with hash -56843011, now seen corresponding path program 1 times [2022-11-25 17:01:53,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:01:53,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380468463] [2022-11-25 17:01:53,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:01:53,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:01:54,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:54,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-25 17:01:54,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:54,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-25 17:01:54,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:54,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-25 17:01:54,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:54,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:01:54,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:54,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-25 17:01:54,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:54,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 17:01:54,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:54,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-25 17:01:54,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:54,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-25 17:01:54,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:54,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-25 17:01:54,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:54,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-25 17:01:54,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:54,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-25 17:01:54,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:54,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-25 17:01:54,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:54,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-25 17:01:54,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:54,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-25 17:01:54,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:54,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-25 17:01:54,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:54,540 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2022-11-25 17:01:54,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:01:54,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380468463] [2022-11-25 17:01:54,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380468463] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:01:54,540 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:01:54,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:01:54,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170061313] [2022-11-25 17:01:54,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:01:54,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:01:54,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:01:54,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:01:54,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:01:54,542 INFO L87 Difference]: Start difference. First operand 4059 states and 5848 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-25 17:01:54,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:01:54,941 INFO L93 Difference]: Finished difference Result 4065 states and 5853 transitions. [2022-11-25 17:01:54,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:01:54,941 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 93 [2022-11-25 17:01:54,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:01:54,961 INFO L225 Difference]: With dead ends: 4065 [2022-11-25 17:01:54,961 INFO L226 Difference]: Without dead ends: 4063 [2022-11-25 17:01:54,964 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:01:54,965 INFO L413 NwaCegarLoop]: 5473 mSDtfsCounter, 5444 mSDsluCounter, 10926 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5447 SdHoareTripleChecker+Valid, 16399 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:01:54,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5447 Valid, 16399 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:01:54,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4063 states. [2022-11-25 17:01:55,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4063 to 4063. [2022-11-25 17:01:55,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4063 states, 2866 states have (on average 1.3422889043963713) internal successors, (3847), 2931 states have internal predecessors, (3847), 1003 states have call successors, (1003), 195 states have call predecessors, (1003), 191 states have return successors, (1001), 980 states have call predecessors, (1001), 1000 states have call successors, (1001) [2022-11-25 17:01:55,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4063 states to 4063 states and 5851 transitions. [2022-11-25 17:01:55,331 INFO L78 Accepts]: Start accepts. Automaton has 4063 states and 5851 transitions. Word has length 93 [2022-11-25 17:01:55,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:01:55,332 INFO L495 AbstractCegarLoop]: Abstraction has 4063 states and 5851 transitions. [2022-11-25 17:01:55,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-25 17:01:55,332 INFO L276 IsEmpty]: Start isEmpty. Operand 4063 states and 5851 transitions. [2022-11-25 17:01:55,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-25 17:01:55,334 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:01:55,335 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 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] [2022-11-25 17:01:55,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-25 17:01:55,335 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:01:55,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:01:55,336 INFO L85 PathProgramCache]: Analyzing trace with hash 721758553, now seen corresponding path program 1 times [2022-11-25 17:01:55,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:01:55,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348561019] [2022-11-25 17:01:55,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:01:55,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:01:55,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:55,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-25 17:01:55,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:55,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-25 17:01:55,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:55,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-25 17:01:55,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:55,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:01:55,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:55,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-25 17:01:55,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:55,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 17:01:55,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:55,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-25 17:01:55,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:55,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-25 17:01:55,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:55,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-25 17:01:55,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:55,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-25 17:01:55,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:55,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-25 17:01:55,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:55,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-25 17:01:55,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:55,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-25 17:01:55,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:55,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-25 17:01:55,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:55,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-25 17:01:55,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:55,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-25 17:01:55,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:55,920 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2022-11-25 17:01:55,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:01:55,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348561019] [2022-11-25 17:01:55,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348561019] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:01:55,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:01:55,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:01:55,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738190130] [2022-11-25 17:01:55,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:01:55,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:01:55,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:01:55,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:01:55,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:01:55,922 INFO L87 Difference]: Start difference. First operand 4063 states and 5851 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-25 17:01:56,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:01:56,350 INFO L93 Difference]: Finished difference Result 4069 states and 5856 transitions. [2022-11-25 17:01:56,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:01:56,351 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 98 [2022-11-25 17:01:56,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:01:56,370 INFO L225 Difference]: With dead ends: 4069 [2022-11-25 17:01:56,370 INFO L226 Difference]: Without dead ends: 4067 [2022-11-25 17:01:56,373 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:01:56,374 INFO L413 NwaCegarLoop]: 5473 mSDtfsCounter, 5444 mSDsluCounter, 10926 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5446 SdHoareTripleChecker+Valid, 16399 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:01:56,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5446 Valid, 16399 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:01:56,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4067 states. [2022-11-25 17:01:56,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4067 to 4067. [2022-11-25 17:01:56,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4067 states, 2869 states have (on average 1.3419309864064133) internal successors, (3850), 2934 states have internal predecessors, (3850), 1003 states have call successors, (1003), 196 states have call predecessors, (1003), 192 states have return successors, (1001), 980 states have call predecessors, (1001), 1000 states have call successors, (1001) [2022-11-25 17:01:56,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4067 states to 4067 states and 5854 transitions. [2022-11-25 17:01:56,755 INFO L78 Accepts]: Start accepts. Automaton has 4067 states and 5854 transitions. Word has length 98 [2022-11-25 17:01:56,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:01:56,755 INFO L495 AbstractCegarLoop]: Abstraction has 4067 states and 5854 transitions. [2022-11-25 17:01:56,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-25 17:01:56,756 INFO L276 IsEmpty]: Start isEmpty. Operand 4067 states and 5854 transitions. [2022-11-25 17:01:56,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-25 17:01:56,759 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:01:56,759 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 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] [2022-11-25 17:01:56,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-25 17:01:56,760 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:01:56,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:01:56,760 INFO L85 PathProgramCache]: Analyzing trace with hash -1342330943, now seen corresponding path program 1 times [2022-11-25 17:01:56,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:01:56,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217888667] [2022-11-25 17:01:56,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:01:56,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:01:56,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:57,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-25 17:01:57,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:57,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-25 17:01:57,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:57,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-25 17:01:57,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:57,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:01:57,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:57,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-25 17:01:57,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:57,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 17:01:57,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:57,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-25 17:01:57,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:57,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-25 17:01:57,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:57,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-25 17:01:57,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:57,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-25 17:01:57,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:57,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-25 17:01:57,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:57,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-25 17:01:57,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:57,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-25 17:01:57,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:57,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-25 17:01:57,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:57,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-25 17:01:57,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:57,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-25 17:01:57,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:57,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-25 17:01:57,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:57,322 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-25 17:01:57,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:01:57,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217888667] [2022-11-25 17:01:57,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217888667] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:01:57,322 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:01:57,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:01:57,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378457383] [2022-11-25 17:01:57,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:01:57,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:01:57,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:01:57,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:01:57,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:01:57,325 INFO L87 Difference]: Start difference. First operand 4067 states and 5854 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-25 17:01:57,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:01:57,883 INFO L93 Difference]: Finished difference Result 4073 states and 5859 transitions. [2022-11-25 17:01:57,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:01:57,884 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 110 [2022-11-25 17:01:57,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:01:57,903 INFO L225 Difference]: With dead ends: 4073 [2022-11-25 17:01:57,903 INFO L226 Difference]: Without dead ends: 4069 [2022-11-25 17:01:57,906 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:01:57,906 INFO L413 NwaCegarLoop]: 5473 mSDtfsCounter, 5437 mSDsluCounter, 10926 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5438 SdHoareTripleChecker+Valid, 16399 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:01:57,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5438 Valid, 16399 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:01:57,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4069 states. [2022-11-25 17:01:58,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4069 to 4069. [2022-11-25 17:01:58,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4069 states, 2871 states have (on average 1.3413444792755138) internal successors, (3851), 2935 states have internal predecessors, (3851), 1003 states have call successors, (1003), 197 states have call predecessors, (1003), 192 states have return successors, (1001), 980 states have call predecessors, (1001), 1000 states have call successors, (1001) [2022-11-25 17:01:58,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4069 states to 4069 states and 5855 transitions. [2022-11-25 17:01:58,299 INFO L78 Accepts]: Start accepts. Automaton has 4069 states and 5855 transitions. Word has length 110 [2022-11-25 17:01:58,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:01:58,300 INFO L495 AbstractCegarLoop]: Abstraction has 4069 states and 5855 transitions. [2022-11-25 17:01:58,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-25 17:01:58,300 INFO L276 IsEmpty]: Start isEmpty. Operand 4069 states and 5855 transitions. [2022-11-25 17:01:58,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-11-25 17:01:58,302 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:01:58,302 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 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] [2022-11-25 17:01:58,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-25 17:01:58,303 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:01:58,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:01:58,303 INFO L85 PathProgramCache]: Analyzing trace with hash 614822037, now seen corresponding path program 1 times [2022-11-25 17:01:58,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:01:58,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818952242] [2022-11-25 17:01:58,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:01:58,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:01:58,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:58,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-25 17:01:58,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:58,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-25 17:01:58,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:58,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-25 17:01:58,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:58,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:01:58,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:58,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-25 17:01:58,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:58,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 17:01:58,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:58,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-25 17:01:58,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:58,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-25 17:01:58,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:58,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-25 17:01:58,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:58,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-25 17:01:58,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:58,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-25 17:01:58,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:58,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-25 17:01:58,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:58,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-25 17:01:58,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:58,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-25 17:01:58,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:58,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-25 17:01:58,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:58,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-25 17:01:58,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:58,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-25 17:01:58,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:58,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-25 17:01:58,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:58,987 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2022-11-25 17:01:58,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:01:58,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818952242] [2022-11-25 17:01:58,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818952242] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:01:58,988 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:01:58,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:01:58,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524916962] [2022-11-25 17:01:58,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:01:58,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:01:58,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:01:58,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:01:58,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:01:58,990 INFO L87 Difference]: Start difference. First operand 4069 states and 5855 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-25 17:01:59,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:01:59,456 INFO L93 Difference]: Finished difference Result 4069 states and 5855 transitions. [2022-11-25 17:01:59,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:01:59,457 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 115 [2022-11-25 17:01:59,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:01:59,476 INFO L225 Difference]: With dead ends: 4069 [2022-11-25 17:01:59,476 INFO L226 Difference]: Without dead ends: 3976 [2022-11-25 17:01:59,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:01:59,480 INFO L413 NwaCegarLoop]: 5471 mSDtfsCounter, 5433 mSDsluCounter, 10925 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5433 SdHoareTripleChecker+Valid, 16396 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:01:59,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5433 Valid, 16396 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:01:59,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3976 states. [2022-11-25 17:01:59,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3976 to 3976. [2022-11-25 17:01:59,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3976 states, 2813 states have (on average 1.3473160327052969) internal successors, (3790), 2875 states have internal predecessors, (3790), 981 states have call successors, (981), 183 states have call predecessors, (981), 180 states have return successors, (982), 961 states have call predecessors, (982), 981 states have call successors, (982) [2022-11-25 17:01:59,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3976 states to 3976 states and 5753 transitions. [2022-11-25 17:01:59,879 INFO L78 Accepts]: Start accepts. Automaton has 3976 states and 5753 transitions. Word has length 115 [2022-11-25 17:01:59,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:01:59,879 INFO L495 AbstractCegarLoop]: Abstraction has 3976 states and 5753 transitions. [2022-11-25 17:01:59,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-25 17:01:59,880 INFO L276 IsEmpty]: Start isEmpty. Operand 3976 states and 5753 transitions. [2022-11-25 17:01:59,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-11-25 17:01:59,889 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:01:59,889 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:01:59,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-25 17:01:59,890 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:01:59,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:01:59,890 INFO L85 PathProgramCache]: Analyzing trace with hash 1724955443, now seen corresponding path program 1 times [2022-11-25 17:01:59,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:01:59,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138812639] [2022-11-25 17:01:59,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:01:59,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:02:00,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:00,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-25 17:02:00,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:00,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-25 17:02:00,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:00,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-25 17:02:00,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:00,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:02:00,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:00,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:02:00,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:00,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-25 17:02:00,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:00,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 17:02:00,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:00,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:02:00,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:00,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:02:00,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:00,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-25 17:02:00,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:00,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-25 17:02:00,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:00,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:02:00,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:00,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:02:00,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:00,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-25 17:02:00,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:00,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-25 17:02:00,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:00,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-25 17:02:00,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:00,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:02:00,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:00,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-25 17:02:00,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:00,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-25 17:02:00,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:00,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-25 17:02:00,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:00,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-25 17:02:00,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:00,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-11-25 17:02:00,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:00,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-11-25 17:02:00,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:00,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-25 17:02:00,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:00,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-11-25 17:02:00,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:00,446 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2022-11-25 17:02:00,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:02:00,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138812639] [2022-11-25 17:02:00,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138812639] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:02:00,447 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:02:00,447 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 17:02:00,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037066163] [2022-11-25 17:02:00,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:02:00,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 17:02:00,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:02:00,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 17:02:00,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:02:00,449 INFO L87 Difference]: Start difference. First operand 3976 states and 5753 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-25 17:02:02,499 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:02:10,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:02:10,838 INFO L93 Difference]: Finished difference Result 8126 states and 11762 transitions. [2022-11-25 17:02:10,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 17:02:10,840 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 179 [2022-11-25 17:02:10,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:02:10,862 INFO L225 Difference]: With dead ends: 8126 [2022-11-25 17:02:10,862 INFO L226 Difference]: Without dead ends: 4167 [2022-11-25 17:02:10,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:02:10,886 INFO L413 NwaCegarLoop]: 2843 mSDtfsCounter, 6491 mSDsluCounter, 1256 mSDsCounter, 0 mSdLazyCounter, 2984 mSolverCounterSat, 2866 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6741 SdHoareTripleChecker+Valid, 4099 SdHoareTripleChecker+Invalid, 5851 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2866 IncrementalHoareTripleChecker+Valid, 2984 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2022-11-25 17:02:10,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6741 Valid, 4099 Invalid, 5851 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2866 Valid, 2984 Invalid, 1 Unknown, 0 Unchecked, 9.7s Time] [2022-11-25 17:02:10,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4167 states. [2022-11-25 17:02:11,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4167 to 3975. [2022-11-25 17:02:11,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3975 states, 2812 states have (on average 1.346728307254623) internal successors, (3787), 2874 states have internal predecessors, (3787), 981 states have call successors, (981), 183 states have call predecessors, (981), 180 states have return successors, (982), 961 states have call predecessors, (982), 981 states have call successors, (982) [2022-11-25 17:02:11,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3975 states to 3975 states and 5750 transitions. [2022-11-25 17:02:11,349 INFO L78 Accepts]: Start accepts. Automaton has 3975 states and 5750 transitions. Word has length 179 [2022-11-25 17:02:11,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:02:11,349 INFO L495 AbstractCegarLoop]: Abstraction has 3975 states and 5750 transitions. [2022-11-25 17:02:11,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-25 17:02:11,350 INFO L276 IsEmpty]: Start isEmpty. Operand 3975 states and 5750 transitions. [2022-11-25 17:02:11,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-11-25 17:02:11,359 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:02:11,359 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:02:11,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-25 17:02:11,360 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:02:11,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:02:11,360 INFO L85 PathProgramCache]: Analyzing trace with hash -2141892650, now seen corresponding path program 1 times [2022-11-25 17:02:11,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:02:11,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050224811] [2022-11-25 17:02:11,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:02:11,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:02:11,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:12,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-25 17:02:12,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:12,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-25 17:02:12,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:12,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-25 17:02:12,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:12,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:02:12,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:12,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:02:12,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:12,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-25 17:02:12,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:12,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 17:02:12,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:12,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:02:12,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:12,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:02:12,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:12,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-25 17:02:12,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:12,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-25 17:02:12,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:12,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:02:12,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:12,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:02:12,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:12,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-25 17:02:12,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:12,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-25 17:02:12,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:12,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-25 17:02:12,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:12,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:02:12,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:12,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-25 17:02:12,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:12,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-25 17:02:12,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:12,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-25 17:02:12,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:12,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-25 17:02:12,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:12,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-25 17:02:12,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:12,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-11-25 17:02:12,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:12,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-11-25 17:02:12,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:12,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-25 17:02:12,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:12,729 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2022-11-25 17:02:12,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:02:12,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050224811] [2022-11-25 17:02:12,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050224811] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:02:12,730 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:02:12,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 17:02:12,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523310268] [2022-11-25 17:02:12,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:02:12,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:02:12,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:02:12,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:02:12,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:02:12,732 INFO L87 Difference]: Start difference. First operand 3975 states and 5750 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-25 17:02:14,772 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:02:28,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:02:28,328 INFO L93 Difference]: Finished difference Result 4173 states and 6036 transitions. [2022-11-25 17:02:28,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 17:02:28,328 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 180 [2022-11-25 17:02:28,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:02:28,350 INFO L225 Difference]: With dead ends: 4173 [2022-11-25 17:02:28,350 INFO L226 Difference]: Without dead ends: 4171 [2022-11-25 17:02:28,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-11-25 17:02:28,354 INFO L413 NwaCegarLoop]: 2881 mSDtfsCounter, 6494 mSDsluCounter, 6777 mSDsCounter, 0 mSdLazyCounter, 9279 mSolverCounterSat, 2804 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6758 SdHoareTripleChecker+Valid, 9658 SdHoareTripleChecker+Invalid, 12084 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2804 IncrementalHoareTripleChecker+Valid, 9279 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.8s IncrementalHoareTripleChecker+Time [2022-11-25 17:02:28,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6758 Valid, 9658 Invalid, 12084 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2804 Valid, 9279 Invalid, 1 Unknown, 0 Unchecked, 14.8s Time] [2022-11-25 17:02:28,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4171 states. [2022-11-25 17:02:28,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4171 to 3975. [2022-11-25 17:02:28,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3975 states, 2812 states have (on average 1.3463726884779517) internal successors, (3786), 2874 states have internal predecessors, (3786), 981 states have call successors, (981), 183 states have call predecessors, (981), 180 states have return successors, (982), 961 states have call predecessors, (982), 981 states have call successors, (982) [2022-11-25 17:02:28,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3975 states to 3975 states and 5749 transitions. [2022-11-25 17:02:28,812 INFO L78 Accepts]: Start accepts. Automaton has 3975 states and 5749 transitions. Word has length 180 [2022-11-25 17:02:28,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:02:28,813 INFO L495 AbstractCegarLoop]: Abstraction has 3975 states and 5749 transitions. [2022-11-25 17:02:28,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-25 17:02:28,814 INFO L276 IsEmpty]: Start isEmpty. Operand 3975 states and 5749 transitions. [2022-11-25 17:02:28,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2022-11-25 17:02:28,849 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:02:28,849 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:02:28,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-25 17:02:28,850 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:02:28,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:02:28,850 INFO L85 PathProgramCache]: Analyzing trace with hash 383121695, now seen corresponding path program 1 times [2022-11-25 17:02:28,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:02:28,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188221367] [2022-11-25 17:02:28,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:02:28,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:02:28,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:29,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-25 17:02:29,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:29,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-25 17:02:29,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:29,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-25 17:02:29,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:29,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:02:29,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:29,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:02:29,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:29,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-25 17:02:29,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:29,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 17:02:29,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:29,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:02:29,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:29,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:02:29,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:29,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-25 17:02:29,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:29,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-25 17:02:29,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:29,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:02:29,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:29,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:02:29,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:29,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-25 17:02:29,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:29,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-25 17:02:29,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:29,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-25 17:02:29,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:29,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:02:29,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:29,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-25 17:02:29,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:29,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-25 17:02:29,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:29,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-25 17:02:29,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:29,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-25 17:02:29,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:29,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-25 17:02:29,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:29,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-11-25 17:02:29,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:29,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-11-25 17:02:29,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:29,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:02:29,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:29,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-11-25 17:02:29,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:29,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-11-25 17:02:29,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:29,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-11-25 17:02:29,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:29,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-25 17:02:29,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:29,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-11-25 17:02:29,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:29,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-11-25 17:02:29,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:29,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-11-25 17:02:29,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:29,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:02:29,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:29,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:02:29,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:29,946 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2022-11-25 17:02:29,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:02:29,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188221367] [2022-11-25 17:02:29,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188221367] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:02:29,949 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:02:29,949 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:02:29,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952923675] [2022-11-25 17:02:29,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:02:29,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 17:02:29,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:02:29,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 17:02:29,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:02:29,951 INFO L87 Difference]: Start difference. First operand 3975 states and 5749 transitions. Second operand has 8 states, 7 states have (on average 14.857142857142858) internal successors, (104), 4 states have internal predecessors, (104), 3 states have call successors, (36), 6 states have call predecessors, (36), 2 states have return successors, (28), 2 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-25 17:02:31,995 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:02:33,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:02:36,003 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:02:38,012 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:03:04,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:03:04,189 INFO L93 Difference]: Finished difference Result 5086 states and 7500 transitions. [2022-11-25 17:03:04,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-25 17:03:04,190 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 14.857142857142858) internal successors, (104), 4 states have internal predecessors, (104), 3 states have call successors, (36), 6 states have call predecessors, (36), 2 states have return successors, (28), 2 states have call predecessors, (28), 3 states have call successors, (28) Word has length 235 [2022-11-25 17:03:04,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:03:04,221 INFO L225 Difference]: With dead ends: 5086 [2022-11-25 17:03:04,221 INFO L226 Difference]: Without dead ends: 5084 [2022-11-25 17:03:04,226 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=134, Invalid=328, Unknown=0, NotChecked=0, Total=462 [2022-11-25 17:03:04,226 INFO L413 NwaCegarLoop]: 2468 mSDtfsCounter, 8275 mSDsluCounter, 9832 mSDsCounter, 0 mSdLazyCounter, 17488 mSolverCounterSat, 5641 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8403 SdHoareTripleChecker+Valid, 12300 SdHoareTripleChecker+Invalid, 23133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 5641 IncrementalHoareTripleChecker+Valid, 17488 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.8s IncrementalHoareTripleChecker+Time [2022-11-25 17:03:04,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8403 Valid, 12300 Invalid, 23133 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [5641 Valid, 17488 Invalid, 4 Unknown, 0 Unchecked, 32.8s Time] [2022-11-25 17:03:04,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5084 states. [2022-11-25 17:03:04,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5084 to 3980. [2022-11-25 17:03:04,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3980 states, 2815 states have (on average 1.3456483126110124) internal successors, (3788), 2878 states have internal predecessors, (3788), 981 states have call successors, (981), 183 states have call predecessors, (981), 182 states have return successors, (987), 962 states have call predecessors, (987), 981 states have call successors, (987) [2022-11-25 17:03:04,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3980 states to 3980 states and 5756 transitions. [2022-11-25 17:03:04,770 INFO L78 Accepts]: Start accepts. Automaton has 3980 states and 5756 transitions. Word has length 235 [2022-11-25 17:03:04,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:03:04,771 INFO L495 AbstractCegarLoop]: Abstraction has 3980 states and 5756 transitions. [2022-11-25 17:03:04,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 14.857142857142858) internal successors, (104), 4 states have internal predecessors, (104), 3 states have call successors, (36), 6 states have call predecessors, (36), 2 states have return successors, (28), 2 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-25 17:03:04,771 INFO L276 IsEmpty]: Start isEmpty. Operand 3980 states and 5756 transitions. [2022-11-25 17:03:04,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 608 [2022-11-25 17:03:04,826 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:03:04,826 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 14, 14, 14, 7, 7, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-11-25 17:03:04,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-25 17:03:04,827 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:03:04,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:03:04,828 INFO L85 PathProgramCache]: Analyzing trace with hash -1933732171, now seen corresponding path program 1 times [2022-11-25 17:03:04,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:03:04,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618281631] [2022-11-25 17:03:04,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:03:04,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:03:05,730 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:03:05,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [44124431] [2022-11-25 17:03:05,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:03:05,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:03:05,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:03:05,734 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:03:05,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 17:03:09,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:09,524 INFO L263 TraceCheckSpWp]: Trace formula consists of 9093 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 17:03:09,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:03:09,631 INFO L134 CoverageAnalysis]: Checked inductivity of 1005 backedges. 530 proven. 0 refuted. 0 times theorem prover too weak. 475 trivial. 0 not checked. [2022-11-25 17:03:09,632 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:03:09,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:03:09,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618281631] [2022-11-25 17:03:09,632 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:03:09,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [44124431] [2022-11-25 17:03:09,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [44124431] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:03:09,633 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:03:09,633 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:03:09,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589012465] [2022-11-25 17:03:09,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:03:09,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:03:09,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:03:09,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:03:09,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:03:09,639 INFO L87 Difference]: Start difference. First operand 3980 states and 5756 transitions. Second operand has 3 states, 3 states have (on average 98.33333333333333) internal successors, (295), 3 states have internal predecessors, (295), 2 states have call successors, (97), 2 states have call predecessors, (97), 2 states have return successors, (89), 2 states have call predecessors, (89), 2 states have call successors, (89) [2022-11-25 17:03:10,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:03:10,335 INFO L93 Difference]: Finished difference Result 7955 states and 11613 transitions. [2022-11-25 17:03:10,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:03:10,335 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 98.33333333333333) internal successors, (295), 3 states have internal predecessors, (295), 2 states have call successors, (97), 2 states have call predecessors, (97), 2 states have return successors, (89), 2 states have call predecessors, (89), 2 states have call successors, (89) Word has length 607 [2022-11-25 17:03:10,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:03:10,360 INFO L225 Difference]: With dead ends: 7955 [2022-11-25 17:03:10,361 INFO L226 Difference]: Without dead ends: 3992 [2022-11-25 17:03:10,390 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 606 GetRequests, 605 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:03:10,390 INFO L413 NwaCegarLoop]: 5387 mSDtfsCounter, 12 mSDsluCounter, 5381 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 10768 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:03:10,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 10768 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:03:10,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3992 states. [2022-11-25 17:03:10,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3992 to 3983. [2022-11-25 17:03:10,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3983 states, 2818 states have (on average 1.3452803406671399) internal successors, (3791), 2881 states have internal predecessors, (3791), 981 states have call successors, (981), 183 states have call predecessors, (981), 182 states have return successors, (987), 962 states have call predecessors, (987), 981 states have call successors, (987) [2022-11-25 17:03:10,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3983 states to 3983 states and 5759 transitions. [2022-11-25 17:03:10,886 INFO L78 Accepts]: Start accepts. Automaton has 3983 states and 5759 transitions. Word has length 607 [2022-11-25 17:03:10,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:03:10,888 INFO L495 AbstractCegarLoop]: Abstraction has 3983 states and 5759 transitions. [2022-11-25 17:03:10,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 98.33333333333333) internal successors, (295), 3 states have internal predecessors, (295), 2 states have call successors, (97), 2 states have call predecessors, (97), 2 states have return successors, (89), 2 states have call predecessors, (89), 2 states have call successors, (89) [2022-11-25 17:03:10,888 INFO L276 IsEmpty]: Start isEmpty. Operand 3983 states and 5759 transitions. [2022-11-25 17:03:10,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 612 [2022-11-25 17:03:10,932 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:03:10,933 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 14, 14, 14, 7, 7, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-11-25 17:03:10,968 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 17:03:11,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-25 17:03:11,160 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:03:11,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:03:11,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1584050002, now seen corresponding path program 1 times [2022-11-25 17:03:11,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:03:11,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893279612] [2022-11-25 17:03:11,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:03:11,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:03:11,990 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:03:11,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1667306995] [2022-11-25 17:03:11,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:03:11,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:03:11,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:03:11,993 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:03:12,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 17:03:15,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:15,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 9113 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 17:03:15,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:03:16,012 INFO L134 CoverageAnalysis]: Checked inductivity of 1006 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 874 trivial. 0 not checked. [2022-11-25 17:03:16,012 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:03:16,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:03:16,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893279612] [2022-11-25 17:03:16,012 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:03:16,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1667306995] [2022-11-25 17:03:16,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1667306995] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:03:16,013 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:03:16,013 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:03:16,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865971782] [2022-11-25 17:03:16,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:03:16,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:03:16,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:03:16,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:03:16,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:03:16,016 INFO L87 Difference]: Start difference. First operand 3983 states and 5759 transitions. Second operand has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 2 states have call successors, (91), 2 states have call predecessors, (91), 2 states have return successors, (84), 2 states have call predecessors, (84), 2 states have call successors, (84) [2022-11-25 17:03:16,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:03:16,496 INFO L93 Difference]: Finished difference Result 8118 states and 11840 transitions. [2022-11-25 17:03:16,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:03:16,497 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 2 states have call successors, (91), 2 states have call predecessors, (91), 2 states have return successors, (84), 2 states have call predecessors, (84), 2 states have call successors, (84) Word has length 611 [2022-11-25 17:03:16,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:03:16,524 INFO L225 Difference]: With dead ends: 8118 [2022-11-25 17:03:16,524 INFO L226 Difference]: Without dead ends: 4152 [2022-11-25 17:03:16,544 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 610 GetRequests, 609 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:03:16,545 INFO L413 NwaCegarLoop]: 5445 mSDtfsCounter, 167 mSDsluCounter, 5401 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 10846 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:03:16,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 10846 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:03:16,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4152 states. [2022-11-25 17:03:17,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4152 to 3984. [2022-11-25 17:03:17,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3984 states, 2819 states have (on average 1.3451578573962397) internal successors, (3792), 2882 states have internal predecessors, (3792), 981 states have call successors, (981), 183 states have call predecessors, (981), 182 states have return successors, (987), 962 states have call predecessors, (987), 981 states have call successors, (987) [2022-11-25 17:03:17,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3984 states to 3984 states and 5760 transitions. [2022-11-25 17:03:17,247 INFO L78 Accepts]: Start accepts. Automaton has 3984 states and 5760 transitions. Word has length 611 [2022-11-25 17:03:17,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:03:17,248 INFO L495 AbstractCegarLoop]: Abstraction has 3984 states and 5760 transitions. [2022-11-25 17:03:17,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 2 states have call successors, (91), 2 states have call predecessors, (91), 2 states have return successors, (84), 2 states have call predecessors, (84), 2 states have call successors, (84) [2022-11-25 17:03:17,249 INFO L276 IsEmpty]: Start isEmpty. Operand 3984 states and 5760 transitions. [2022-11-25 17:03:17,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 649 [2022-11-25 17:03:17,282 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:03:17,283 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 15, 15, 15, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:03:17,320 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 17:03:17,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-25 17:03:17,505 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:03:17,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:03:17,510 INFO L85 PathProgramCache]: Analyzing trace with hash 750032058, now seen corresponding path program 1 times [2022-11-25 17:03:17,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:03:17,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892654905] [2022-11-25 17:03:17,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:03:17,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:03:18,326 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:03:18,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1869094160] [2022-11-25 17:03:18,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:03:18,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:03:18,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:03:18,328 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:03:18,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 17:03:22,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:22,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 9366 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 17:03:22,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:03:22,715 INFO L134 CoverageAnalysis]: Checked inductivity of 1121 backedges. 594 proven. 0 refuted. 0 times theorem prover too weak. 527 trivial. 0 not checked. [2022-11-25 17:03:22,715 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:03:22,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:03:22,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892654905] [2022-11-25 17:03:22,716 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:03:22,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1869094160] [2022-11-25 17:03:22,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1869094160] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:03:22,717 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:03:22,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:03:22,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226772655] [2022-11-25 17:03:22,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:03:22,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:03:22,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:03:22,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:03:22,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:03:22,721 INFO L87 Difference]: Start difference. First operand 3984 states and 5760 transitions. Second operand has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 2 states have call successors, (102), 2 states have call predecessors, (102), 2 states have return successors, (94), 2 states have call predecessors, (94), 2 states have call successors, (94) [2022-11-25 17:03:23,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:03:23,207 INFO L93 Difference]: Finished difference Result 7960 states and 11615 transitions. [2022-11-25 17:03:23,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:03:23,208 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 2 states have call successors, (102), 2 states have call predecessors, (102), 2 states have return successors, (94), 2 states have call predecessors, (94), 2 states have call successors, (94) Word has length 648 [2022-11-25 17:03:23,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:03:23,233 INFO L225 Difference]: With dead ends: 7960 [2022-11-25 17:03:23,234 INFO L226 Difference]: Without dead ends: 3993 [2022-11-25 17:03:23,253 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 647 GetRequests, 646 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:03:23,254 INFO L413 NwaCegarLoop]: 5390 mSDtfsCounter, 7 mSDsluCounter, 5381 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 10771 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:03:23,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 10771 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:03:23,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3993 states. [2022-11-25 17:03:23,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3993 to 3990. [2022-11-25 17:03:23,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3990 states, 2825 states have (on average 1.344424778761062) internal successors, (3798), 2888 states have internal predecessors, (3798), 981 states have call successors, (981), 183 states have call predecessors, (981), 182 states have return successors, (987), 962 states have call predecessors, (987), 981 states have call successors, (987) [2022-11-25 17:03:23,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3990 states to 3990 states and 5766 transitions. [2022-11-25 17:03:23,975 INFO L78 Accepts]: Start accepts. Automaton has 3990 states and 5766 transitions. Word has length 648 [2022-11-25 17:03:23,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:03:23,976 INFO L495 AbstractCegarLoop]: Abstraction has 3990 states and 5766 transitions. [2022-11-25 17:03:23,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 2 states have call successors, (102), 2 states have call predecessors, (102), 2 states have return successors, (94), 2 states have call predecessors, (94), 2 states have call successors, (94) [2022-11-25 17:03:23,977 INFO L276 IsEmpty]: Start isEmpty. Operand 3990 states and 5766 transitions. [2022-11-25 17:03:24,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 624 [2022-11-25 17:03:24,003 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:03:24,004 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 14, 14, 14, 8, 8, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-11-25 17:03:24,049 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 17:03:24,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:03:24,232 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:03:24,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:03:24,232 INFO L85 PathProgramCache]: Analyzing trace with hash 217729929, now seen corresponding path program 1 times [2022-11-25 17:03:24,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:03:24,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170596234] [2022-11-25 17:03:24,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:03:24,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:03:25,051 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:03:25,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [829245446] [2022-11-25 17:03:25,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:03:25,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:03:25,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:03:25,053 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:03:25,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 17:03:29,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:29,503 INFO L263 TraceCheckSpWp]: Trace formula consists of 9145 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 17:03:29,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:03:29,559 INFO L134 CoverageAnalysis]: Checked inductivity of 1039 backedges. 539 proven. 0 refuted. 0 times theorem prover too weak. 500 trivial. 0 not checked. [2022-11-25 17:03:29,559 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:03:29,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:03:29,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170596234] [2022-11-25 17:03:29,560 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:03:29,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [829245446] [2022-11-25 17:03:29,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [829245446] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:03:29,560 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:03:29,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:03:29,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311224348] [2022-11-25 17:03:29,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:03:29,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:03:29,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:03:29,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:03:29,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:03:29,563 INFO L87 Difference]: Start difference. First operand 3990 states and 5766 transitions. Second operand has 3 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 3 states have call successors, (99), 2 states have call predecessors, (99), 2 states have return successors, (91), 3 states have call predecessors, (91), 3 states have call successors, (91) [2022-11-25 17:03:30,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:03:30,098 INFO L93 Difference]: Finished difference Result 7971 states and 11614 transitions. [2022-11-25 17:03:30,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:03:30,098 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 3 states have call successors, (99), 2 states have call predecessors, (99), 2 states have return successors, (91), 3 states have call predecessors, (91), 3 states have call successors, (91) Word has length 623 [2022-11-25 17:03:30,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:03:30,121 INFO L225 Difference]: With dead ends: 7971 [2022-11-25 17:03:30,121 INFO L226 Difference]: Without dead ends: 3998 [2022-11-25 17:03:30,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 622 GetRequests, 621 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:03:30,142 INFO L413 NwaCegarLoop]: 5401 mSDtfsCounter, 8 mSDsluCounter, 5390 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 10791 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:03:30,142 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 10791 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:03:30,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3998 states. [2022-11-25 17:03:30,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3998 to 3995. [2022-11-25 17:03:30,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3995 states, 2829 states have (on average 1.3442912689996465) internal successors, (3803), 2892 states have internal predecessors, (3803), 982 states have call successors, (982), 183 states have call predecessors, (982), 182 states have return successors, (988), 963 states have call predecessors, (988), 982 states have call successors, (988) [2022-11-25 17:03:30,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3995 states to 3995 states and 5773 transitions. [2022-11-25 17:03:30,639 INFO L78 Accepts]: Start accepts. Automaton has 3995 states and 5773 transitions. Word has length 623 [2022-11-25 17:03:30,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:03:30,640 INFO L495 AbstractCegarLoop]: Abstraction has 3995 states and 5773 transitions. [2022-11-25 17:03:30,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 3 states have call successors, (99), 2 states have call predecessors, (99), 2 states have return successors, (91), 3 states have call predecessors, (91), 3 states have call successors, (91) [2022-11-25 17:03:30,640 INFO L276 IsEmpty]: Start isEmpty. Operand 3995 states and 5773 transitions. [2022-11-25 17:03:30,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 654 [2022-11-25 17:03:30,667 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:03:30,668 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 15, 15, 15, 8, 8, 7, 7, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:03:30,708 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 17:03:30,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:03:30,883 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:03:30,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:03:30,884 INFO L85 PathProgramCache]: Analyzing trace with hash -755027778, now seen corresponding path program 1 times [2022-11-25 17:03:30,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:03:30,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411223831] [2022-11-25 17:03:30,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:03:30,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:03:31,694 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:03:31,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1107392375] [2022-11-25 17:03:31,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:03:31,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:03:31,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:03:31,696 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:03:31,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 17:03:36,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:36,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 9381 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 17:03:36,822 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:03:36,854 INFO L134 CoverageAnalysis]: Checked inductivity of 1136 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 1007 trivial. 0 not checked. [2022-11-25 17:03:36,855 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:03:36,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:03:36,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411223831] [2022-11-25 17:03:36,855 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:03:36,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1107392375] [2022-11-25 17:03:36,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1107392375] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:03:36,856 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:03:36,856 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:03:36,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699995075] [2022-11-25 17:03:36,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:03:36,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:03:36,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:03:36,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:03:36,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:03:36,859 INFO L87 Difference]: Start difference. First operand 3995 states and 5773 transitions. Second operand has 3 states, 3 states have (on average 96.0) internal successors, (288), 3 states have internal predecessors, (288), 2 states have call successors, (97), 2 states have call predecessors, (97), 2 states have return successors, (90), 2 states have call predecessors, (90), 2 states have call successors, (90) [2022-11-25 17:03:37,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:03:37,351 INFO L93 Difference]: Finished difference Result 8001 states and 11645 transitions. [2022-11-25 17:03:37,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:03:37,352 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 96.0) internal successors, (288), 3 states have internal predecessors, (288), 2 states have call successors, (97), 2 states have call predecessors, (97), 2 states have return successors, (90), 2 states have call predecessors, (90), 2 states have call successors, (90) Word has length 653 [2022-11-25 17:03:37,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:03:37,378 INFO L225 Difference]: With dead ends: 8001 [2022-11-25 17:03:37,378 INFO L226 Difference]: Without dead ends: 4023 [2022-11-25 17:03:37,397 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 652 GetRequests, 651 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:03:37,400 INFO L413 NwaCegarLoop]: 5431 mSDtfsCounter, 17 mSDsluCounter, 5405 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 10836 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:03:37,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 10836 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:03:37,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4023 states. [2022-11-25 17:03:38,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4023 to 3997. [2022-11-25 17:03:38,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3997 states, 2831 states have (on average 1.3440480395619923) internal successors, (3805), 2894 states have internal predecessors, (3805), 982 states have call successors, (982), 183 states have call predecessors, (982), 182 states have return successors, (988), 963 states have call predecessors, (988), 982 states have call successors, (988) [2022-11-25 17:03:38,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3997 states to 3997 states and 5775 transitions. [2022-11-25 17:03:38,073 INFO L78 Accepts]: Start accepts. Automaton has 3997 states and 5775 transitions. Word has length 653 [2022-11-25 17:03:38,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:03:38,075 INFO L495 AbstractCegarLoop]: Abstraction has 3997 states and 5775 transitions. [2022-11-25 17:03:38,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.0) internal successors, (288), 3 states have internal predecessors, (288), 2 states have call successors, (97), 2 states have call predecessors, (97), 2 states have return successors, (90), 2 states have call predecessors, (90), 2 states have call successors, (90) [2022-11-25 17:03:38,075 INFO L276 IsEmpty]: Start isEmpty. Operand 3997 states and 5775 transitions. [2022-11-25 17:03:38,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 629 [2022-11-25 17:03:38,103 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:03:38,104 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 14, 14, 14, 8, 8, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-11-25 17:03:38,149 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-25 17:03:38,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-11-25 17:03:38,319 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:03:38,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:03:38,320 INFO L85 PathProgramCache]: Analyzing trace with hash -504309559, now seen corresponding path program 1 times [2022-11-25 17:03:38,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:03:38,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552809674] [2022-11-25 17:03:38,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:03:38,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:03:39,137 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:03:39,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [261444734] [2022-11-25 17:03:39,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:03:39,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:03:39,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:03:39,139 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:03:39,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-25 17:03:44,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:44,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 9164 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 17:03:44,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:03:44,176 INFO L134 CoverageAnalysis]: Checked inductivity of 1054 backedges. 554 proven. 0 refuted. 0 times theorem prover too weak. 500 trivial. 0 not checked. [2022-11-25 17:03:44,177 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:03:44,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:03:44,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552809674] [2022-11-25 17:03:44,177 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:03:44,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [261444734] [2022-11-25 17:03:44,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [261444734] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:03:44,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:03:44,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:03:44,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547875893] [2022-11-25 17:03:44,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:03:44,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:03:44,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:03:44,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:03:44,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:03:44,181 INFO L87 Difference]: Start difference. First operand 3997 states and 5775 transitions. Second operand has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 2 states have call successors, (100), 2 states have call predecessors, (100), 2 states have return successors, (92), 2 states have call predecessors, (92), 2 states have call successors, (92) [2022-11-25 17:03:44,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:03:44,671 INFO L93 Difference]: Finished difference Result 7982 states and 11628 transitions. [2022-11-25 17:03:44,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:03:44,674 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 2 states have call successors, (100), 2 states have call predecessors, (100), 2 states have return successors, (92), 2 states have call predecessors, (92), 2 states have call successors, (92) Word has length 628 [2022-11-25 17:03:44,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:03:44,689 INFO L225 Difference]: With dead ends: 7982 [2022-11-25 17:03:44,690 INFO L226 Difference]: Without dead ends: 4002 [2022-11-25 17:03:44,708 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 627 GetRequests, 626 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:03:44,709 INFO L413 NwaCegarLoop]: 5402 mSDtfsCounter, 3 mSDsluCounter, 5387 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 10789 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:03:44,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 10789 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:03:44,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4002 states. [2022-11-25 17:03:45,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4002 to 3998. [2022-11-25 17:03:45,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3998 states, 2832 states have (on average 1.3439265536723164) internal successors, (3806), 2895 states have internal predecessors, (3806), 982 states have call successors, (982), 183 states have call predecessors, (982), 182 states have return successors, (988), 963 states have call predecessors, (988), 982 states have call successors, (988) [2022-11-25 17:03:45,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3998 states to 3998 states and 5776 transitions. [2022-11-25 17:03:45,121 INFO L78 Accepts]: Start accepts. Automaton has 3998 states and 5776 transitions. Word has length 628 [2022-11-25 17:03:45,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:03:45,122 INFO L495 AbstractCegarLoop]: Abstraction has 3998 states and 5776 transitions. [2022-11-25 17:03:45,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 2 states have call successors, (100), 2 states have call predecessors, (100), 2 states have return successors, (92), 2 states have call predecessors, (92), 2 states have call successors, (92) [2022-11-25 17:03:45,123 INFO L276 IsEmpty]: Start isEmpty. Operand 3998 states and 5776 transitions. [2022-11-25 17:03:45,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 632 [2022-11-25 17:03:45,149 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:03:45,149 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 14, 14, 14, 8, 8, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-11-25 17:03:45,184 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-11-25 17:03:45,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-11-25 17:03:45,350 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:03:45,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:03:45,351 INFO L85 PathProgramCache]: Analyzing trace with hash 259095506, now seen corresponding path program 1 times [2022-11-25 17:03:45,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:03:45,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784269557] [2022-11-25 17:03:45,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:03:45,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:03:46,225 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:03:46,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1757440680] [2022-11-25 17:03:46,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:03:46,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:03:46,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:03:46,228 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:03:46,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-25 17:03:51,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:51,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 9170 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 17:03:51,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:03:51,662 INFO L134 CoverageAnalysis]: Checked inductivity of 1040 backedges. 545 proven. 1 refuted. 0 times theorem prover too weak. 494 trivial. 0 not checked. [2022-11-25 17:03:51,662 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:03:52,444 INFO L134 CoverageAnalysis]: Checked inductivity of 1040 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1036 trivial. 0 not checked. [2022-11-25 17:03:52,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:03:52,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784269557] [2022-11-25 17:03:52,445 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:03:52,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1757440680] [2022-11-25 17:03:52,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1757440680] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:03:52,446 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 17:03:52,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-11-25 17:03:52,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688457531] [2022-11-25 17:03:52,447 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 17:03:52,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:03:52,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:03:52,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:03:52,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:03:52,450 INFO L87 Difference]: Start difference. First operand 3998 states and 5776 transitions. Second operand has 6 states, 6 states have (on average 67.66666666666667) internal successors, (406), 6 states have internal predecessors, (406), 2 states have call successors, (147), 2 states have call predecessors, (147), 2 states have return successors, (141), 2 states have call predecessors, (141), 2 states have call successors, (141) [2022-11-25 17:03:53,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:03:53,189 INFO L93 Difference]: Finished difference Result 8009 states and 11680 transitions. [2022-11-25 17:03:53,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:03:53,190 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 67.66666666666667) internal successors, (406), 6 states have internal predecessors, (406), 2 states have call successors, (147), 2 states have call predecessors, (147), 2 states have return successors, (141), 2 states have call predecessors, (141), 2 states have call successors, (141) Word has length 631 [2022-11-25 17:03:53,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:03:53,206 INFO L225 Difference]: With dead ends: 8009 [2022-11-25 17:03:53,206 INFO L226 Difference]: Without dead ends: 4028 [2022-11-25 17:03:53,222 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1260 GetRequests, 1256 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:03:53,223 INFO L413 NwaCegarLoop]: 5387 mSDtfsCounter, 54 mSDsluCounter, 10762 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 16149 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:03:53,223 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 16149 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:03:53,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4028 states. [2022-11-25 17:03:53,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4028 to 4028. [2022-11-25 17:03:53,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4028 states, 2862 states have (on average 1.3424178895877008) internal successors, (3842), 2925 states have internal predecessors, (3842), 982 states have call successors, (982), 183 states have call predecessors, (982), 182 states have return successors, (988), 963 states have call predecessors, (988), 982 states have call successors, (988) [2022-11-25 17:03:53,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4028 states to 4028 states and 5812 transitions. [2022-11-25 17:03:53,719 INFO L78 Accepts]: Start accepts. Automaton has 4028 states and 5812 transitions. Word has length 631 [2022-11-25 17:03:53,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:03:53,720 INFO L495 AbstractCegarLoop]: Abstraction has 4028 states and 5812 transitions. [2022-11-25 17:03:53,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 67.66666666666667) internal successors, (406), 6 states have internal predecessors, (406), 2 states have call successors, (147), 2 states have call predecessors, (147), 2 states have return successors, (141), 2 states have call predecessors, (141), 2 states have call successors, (141) [2022-11-25 17:03:53,721 INFO L276 IsEmpty]: Start isEmpty. Operand 4028 states and 5812 transitions. [2022-11-25 17:03:53,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 644 [2022-11-25 17:03:53,749 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:03:53,749 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 14, 14, 14, 8, 8, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-11-25 17:03:53,800 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-25 17:03:53,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-11-25 17:03:53,967 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:03:53,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:03:53,967 INFO L85 PathProgramCache]: Analyzing trace with hash -1181254083, now seen corresponding path program 1 times [2022-11-25 17:03:53,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:03:53,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010122591] [2022-11-25 17:03:53,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:03:53,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:03:54,682 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:03:54,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [153295981] [2022-11-25 17:03:54,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:03:54,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:03:54,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:03:54,684 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:03:54,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-25 17:04:00,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:04:00,368 INFO L263 TraceCheckSpWp]: Trace formula consists of 9230 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 17:04:00,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:04:00,463 INFO L134 CoverageAnalysis]: Checked inductivity of 1067 backedges. 545 proven. 28 refuted. 0 times theorem prover too weak. 494 trivial. 0 not checked. [2022-11-25 17:04:00,463 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:04:01,161 INFO L134 CoverageAnalysis]: Checked inductivity of 1067 backedges. 3 proven. 28 refuted. 0 times theorem prover too weak. 1036 trivial. 0 not checked. [2022-11-25 17:04:01,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:04:01,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010122591] [2022-11-25 17:04:01,162 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:04:01,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [153295981] [2022-11-25 17:04:01,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [153295981] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:04:01,162 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 17:04:01,163 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2022-11-25 17:04:01,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192142490] [2022-11-25 17:04:01,163 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 17:04:01,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 17:04:01,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:04:01,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 17:04:01,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:04:01,166 INFO L87 Difference]: Start difference. First operand 4028 states and 5812 transitions. Second operand has 8 states, 8 states have (on average 52.375) internal successors, (419), 8 states have internal predecessors, (419), 2 states have call successors, (147), 2 states have call predecessors, (147), 2 states have return successors, (141), 2 states have call predecessors, (141), 2 states have call successors, (141) [2022-11-25 17:04:01,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:04:01,830 INFO L93 Difference]: Finished difference Result 8063 states and 11743 transitions. [2022-11-25 17:04:01,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 17:04:01,830 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 52.375) internal successors, (419), 8 states have internal predecessors, (419), 2 states have call successors, (147), 2 states have call predecessors, (147), 2 states have return successors, (141), 2 states have call predecessors, (141), 2 states have call successors, (141) Word has length 643 [2022-11-25 17:04:01,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:04:01,844 INFO L225 Difference]: With dead ends: 8063 [2022-11-25 17:04:01,844 INFO L226 Difference]: Without dead ends: 4052 [2022-11-25 17:04:01,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1284 GetRequests, 1274 SyntacticMatches, 4 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:04:01,855 INFO L413 NwaCegarLoop]: 5387 mSDtfsCounter, 137 mSDsluCounter, 5381 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 10768 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 17:04:01,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 10768 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 17:04:01,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4052 states. [2022-11-25 17:04:02,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4052 to 4052. [2022-11-25 17:04:02,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4052 states, 2886 states have (on average 1.3416493416493416) internal successors, (3872), 2949 states have internal predecessors, (3872), 982 states have call successors, (982), 183 states have call predecessors, (982), 182 states have return successors, (988), 963 states have call predecessors, (988), 982 states have call successors, (988) [2022-11-25 17:04:02,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4052 states to 4052 states and 5842 transitions. [2022-11-25 17:04:02,203 INFO L78 Accepts]: Start accepts. Automaton has 4052 states and 5842 transitions. Word has length 643 [2022-11-25 17:04:02,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:04:02,204 INFO L495 AbstractCegarLoop]: Abstraction has 4052 states and 5842 transitions. [2022-11-25 17:04:02,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 52.375) internal successors, (419), 8 states have internal predecessors, (419), 2 states have call successors, (147), 2 states have call predecessors, (147), 2 states have return successors, (141), 2 states have call predecessors, (141), 2 states have call successors, (141) [2022-11-25 17:04:02,204 INFO L276 IsEmpty]: Start isEmpty. Operand 4052 states and 5842 transitions. [2022-11-25 17:04:02,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 652 [2022-11-25 17:04:02,229 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:04:02,230 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 14, 14, 14, 8, 8, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-11-25 17:04:02,272 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-25 17:04:02,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:04:02,443 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:04:02,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:04:02,443 INFO L85 PathProgramCache]: Analyzing trace with hash -2068160849, now seen corresponding path program 2 times [2022-11-25 17:04:02,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:04:02,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248641690] [2022-11-25 17:04:02,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:04:02,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:04:03,090 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:04:03,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [189657972] [2022-11-25 17:04:03,091 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 17:04:03,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:04:03,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:04:03,092 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:04:03,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-25 17:04:14,819 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 17:04:14,820 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:04:14,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 9270 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 17:04:14,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:04:15,004 INFO L134 CoverageAnalysis]: Checked inductivity of 1105 backedges. 545 proven. 0 refuted. 0 times theorem prover too weak. 560 trivial. 0 not checked. [2022-11-25 17:04:15,005 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:04:15,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:04:15,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248641690] [2022-11-25 17:04:15,005 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:04:15,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [189657972] [2022-11-25 17:04:15,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [189657972] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:04:15,006 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:04:15,006 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 17:04:15,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272385433] [2022-11-25 17:04:15,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:04:15,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 17:04:15,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:04:15,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 17:04:15,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:04:15,009 INFO L87 Difference]: Start difference. First operand 4052 states and 5842 transitions. Second operand has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 states have internal predecessors, (310), 3 states have call successors, (100), 2 states have call predecessors, (100), 3 states have return successors, (92), 3 states have call predecessors, (92), 3 states have call successors, (92) [2022-11-25 17:04:15,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:04:15,687 INFO L93 Difference]: Finished difference Result 8171 states and 11871 transitions. [2022-11-25 17:04:15,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 17:04:15,688 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 states have internal predecessors, (310), 3 states have call successors, (100), 2 states have call predecessors, (100), 3 states have return successors, (92), 3 states have call predecessors, (92), 3 states have call successors, (92) Word has length 651 [2022-11-25 17:04:15,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:04:15,704 INFO L225 Difference]: With dead ends: 8171 [2022-11-25 17:04:15,704 INFO L226 Difference]: Without dead ends: 4136 [2022-11-25 17:04:15,721 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 651 GetRequests, 648 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:04:15,722 INFO L413 NwaCegarLoop]: 5401 mSDtfsCounter, 64 mSDsluCounter, 10763 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 16164 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:04:15,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 16164 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:04:15,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4136 states. [2022-11-25 17:04:16,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4136 to 4136. [2022-11-25 17:04:16,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4136 states, 2968 states have (on average 1.338611859838275) internal successors, (3973), 3031 states have internal predecessors, (3973), 983 states have call successors, (983), 184 states have call predecessors, (983), 183 states have return successors, (989), 964 states have call predecessors, (989), 983 states have call successors, (989) [2022-11-25 17:04:16,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4136 states to 4136 states and 5945 transitions. [2022-11-25 17:04:16,090 INFO L78 Accepts]: Start accepts. Automaton has 4136 states and 5945 transitions. Word has length 651 [2022-11-25 17:04:16,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:04:16,091 INFO L495 AbstractCegarLoop]: Abstraction has 4136 states and 5945 transitions. [2022-11-25 17:04:16,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 states have internal predecessors, (310), 3 states have call successors, (100), 2 states have call predecessors, (100), 3 states have return successors, (92), 3 states have call predecessors, (92), 3 states have call successors, (92) [2022-11-25 17:04:16,091 INFO L276 IsEmpty]: Start isEmpty. Operand 4136 states and 5945 transitions. [2022-11-25 17:04:16,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 683 [2022-11-25 17:04:16,107 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:04:16,108 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 15, 15, 15, 8, 8, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:04:16,151 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-25 17:04:16,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-11-25 17:04:16,320 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:04:16,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:04:16,320 INFO L85 PathProgramCache]: Analyzing trace with hash 834140937, now seen corresponding path program 1 times [2022-11-25 17:04:16,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:04:16,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836823960] [2022-11-25 17:04:16,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:04:16,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:04:17,072 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:04:17,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [800936732] [2022-11-25 17:04:17,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:04:17,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:04:17,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:04:17,075 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:04:17,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-25 17:04:23,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:04:23,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 9515 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 17:04:23,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:04:23,524 INFO L134 CoverageAnalysis]: Checked inductivity of 1187 backedges. 165 proven. 0 refuted. 0 times theorem prover too weak. 1022 trivial. 0 not checked. [2022-11-25 17:04:23,524 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:04:23,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:04:23,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836823960] [2022-11-25 17:04:23,525 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:04:23,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [800936732] [2022-11-25 17:04:23,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [800936732] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:04:23,525 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:04:23,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:04:23,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909106073] [2022-11-25 17:04:23,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:04:23,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:04:23,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:04:23,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:04:23,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:04:23,529 INFO L87 Difference]: Start difference. First operand 4136 states and 5945 transitions. Second operand has 5 states, 5 states have (on average 60.8) internal successors, (304), 4 states have internal predecessors, (304), 2 states have call successors, (98), 2 states have call predecessors, (98), 3 states have return successors, (91), 3 states have call predecessors, (91), 2 states have call successors, (91) [2022-11-25 17:04:24,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:04:24,101 INFO L93 Difference]: Finished difference Result 8257 states and 11951 transitions. [2022-11-25 17:04:24,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 17:04:24,101 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 60.8) internal successors, (304), 4 states have internal predecessors, (304), 2 states have call successors, (98), 2 states have call predecessors, (98), 3 states have return successors, (91), 3 states have call predecessors, (91), 2 states have call successors, (91) Word has length 682 [2022-11-25 17:04:24,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:04:24,125 INFO L225 Difference]: With dead ends: 8257 [2022-11-25 17:04:24,125 INFO L226 Difference]: Without dead ends: 4138 [2022-11-25 17:04:24,144 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 681 GetRequests, 678 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:04:24,144 INFO L413 NwaCegarLoop]: 5402 mSDtfsCounter, 172 mSDsluCounter, 15994 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 21396 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:04:24,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 21396 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:04:24,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4138 states. [2022-11-25 17:04:24,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4138 to 4136. [2022-11-25 17:04:24,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4136 states, 2968 states have (on average 1.3382749326145553) internal successors, (3972), 3031 states have internal predecessors, (3972), 983 states have call successors, (983), 184 states have call predecessors, (983), 183 states have return successors, (989), 964 states have call predecessors, (989), 983 states have call successors, (989) [2022-11-25 17:04:24,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4136 states to 4136 states and 5944 transitions. [2022-11-25 17:04:24,496 INFO L78 Accepts]: Start accepts. Automaton has 4136 states and 5944 transitions. Word has length 682 [2022-11-25 17:04:24,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:04:24,496 INFO L495 AbstractCegarLoop]: Abstraction has 4136 states and 5944 transitions. [2022-11-25 17:04:24,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 60.8) internal successors, (304), 4 states have internal predecessors, (304), 2 states have call successors, (98), 2 states have call predecessors, (98), 3 states have return successors, (91), 3 states have call predecessors, (91), 2 states have call successors, (91) [2022-11-25 17:04:24,497 INFO L276 IsEmpty]: Start isEmpty. Operand 4136 states and 5944 transitions. [2022-11-25 17:04:24,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 658 [2022-11-25 17:04:24,514 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:04:24,514 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 14, 14, 14, 8, 8, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-11-25 17:04:24,556 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-25 17:04:24,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-11-25 17:04:24,716 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:04:24,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:04:24,717 INFO L85 PathProgramCache]: Analyzing trace with hash 698904418, now seen corresponding path program 1 times [2022-11-25 17:04:24,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:04:24,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840909295] [2022-11-25 17:04:24,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:04:24,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:04:25,426 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:04:25,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1028191583] [2022-11-25 17:04:25,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:04:25,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:04:25,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:04:25,434 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:04:25,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-25 17:04:31,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:04:32,064 INFO L263 TraceCheckSpWp]: Trace formula consists of 9298 conjuncts, 170 conjunts are in the unsatisfiable core [2022-11-25 17:04:32,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:04:33,473 INFO L134 CoverageAnalysis]: Checked inductivity of 1105 backedges. 467 proven. 49 refuted. 0 times theorem prover too weak. 589 trivial. 0 not checked. [2022-11-25 17:04:33,473 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:04:36,024 INFO L134 CoverageAnalysis]: Checked inductivity of 1105 backedges. 15 proven. 46 refuted. 0 times theorem prover too weak. 1044 trivial. 0 not checked. [2022-11-25 17:04:36,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:04:36,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840909295] [2022-11-25 17:04:36,025 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:04:36,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1028191583] [2022-11-25 17:04:36,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1028191583] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:04:36,025 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 17:04:36,026 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 18] total 45 [2022-11-25 17:04:36,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586227310] [2022-11-25 17:04:36,026 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 17:04:36,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2022-11-25 17:04:36,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:04:36,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2022-11-25 17:04:36,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=1853, Unknown=0, NotChecked=0, Total=1980 [2022-11-25 17:04:36,030 INFO L87 Difference]: Start difference. First operand 4136 states and 5944 transitions. Second operand has 45 states, 36 states have (on average 11.11111111111111) internal successors, (400), 30 states have internal predecessors, (400), 22 states have call successors, (148), 10 states have call predecessors, (148), 10 states have return successors, (138), 20 states have call predecessors, (138), 19 states have call successors, (138) [2022-11-25 17:04:38,082 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:04:40,097 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:04:42,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-25 17:04:44,111 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:04:46,121 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:04:48,129 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:04:50,135 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:04:52,140 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:04:54,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:04:56,149 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:04:58,153 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:05:55,618 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:07:37,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:07:37,271 INFO L93 Difference]: Finished difference Result 9987 states and 14814 transitions. [2022-11-25 17:07:37,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-11-25 17:07:37,272 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 36 states have (on average 11.11111111111111) internal successors, (400), 30 states have internal predecessors, (400), 22 states have call successors, (148), 10 states have call predecessors, (148), 10 states have return successors, (138), 20 states have call predecessors, (138), 19 states have call successors, (138) Word has length 657 [2022-11-25 17:07:37,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:07:37,300 INFO L225 Difference]: With dead ends: 9987 [2022-11-25 17:07:37,301 INFO L226 Difference]: Without dead ends: 5868 [2022-11-25 17:07:37,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1359 GetRequests, 1279 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 895 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=456, Invalid=6186, Unknown=0, NotChecked=0, Total=6642 [2022-11-25 17:07:37,319 INFO L413 NwaCegarLoop]: 4715 mSDtfsCounter, 8028 mSDsluCounter, 113510 mSDsCounter, 0 mSdLazyCounter, 100838 mSolverCounterSat, 5193 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 163.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8588 SdHoareTripleChecker+Valid, 118225 SdHoareTripleChecker+Invalid, 106042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.2s SdHoareTripleChecker+Time, 5193 IncrementalHoareTripleChecker+Valid, 100838 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 175.7s IncrementalHoareTripleChecker+Time [2022-11-25 17:07:37,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8588 Valid, 118225 Invalid, 106042 Unknown, 0 Unchecked, 1.2s Time], IncrementalHoareTripleChecker [5193 Valid, 100838 Invalid, 11 Unknown, 0 Unchecked, 175.7s Time] [2022-11-25 17:07:37,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5868 states. [2022-11-25 17:07:37,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5868 to 4343. [2022-11-25 17:07:37,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4343 states, 3105 states have (on average 1.3352657004830917) internal successors, (4146), 3171 states have internal predecessors, (4146), 1046 states have call successors, (1046), 188 states have call predecessors, (1046), 190 states have return successors, (1062), 1028 states have call predecessors, (1062), 1046 states have call successors, (1062) [2022-11-25 17:07:37,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4343 states to 4343 states and 6254 transitions. [2022-11-25 17:07:37,987 INFO L78 Accepts]: Start accepts. Automaton has 4343 states and 6254 transitions. Word has length 657 [2022-11-25 17:07:37,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:07:37,988 INFO L495 AbstractCegarLoop]: Abstraction has 4343 states and 6254 transitions. [2022-11-25 17:07:37,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 36 states have (on average 11.11111111111111) internal successors, (400), 30 states have internal predecessors, (400), 22 states have call successors, (148), 10 states have call predecessors, (148), 10 states have return successors, (138), 20 states have call predecessors, (138), 19 states have call successors, (138) [2022-11-25 17:07:37,989 INFO L276 IsEmpty]: Start isEmpty. Operand 4343 states and 6254 transitions. [2022-11-25 17:07:38,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 650 [2022-11-25 17:07:38,013 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:07:38,013 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 13, 13, 8, 8, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:07:38,055 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-25 17:07:38,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:07:38,214 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:07:38,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:07:38,214 INFO L85 PathProgramCache]: Analyzing trace with hash -1810920746, now seen corresponding path program 1 times [2022-11-25 17:07:38,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:07:38,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157744925] [2022-11-25 17:07:38,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:07:38,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:07:38,884 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:07:38,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [316787863] [2022-11-25 17:07:38,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:07:38,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:07:38,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:07:38,885 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:07:38,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-25 17:07:46,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:07:46,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 9137 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 17:07:46,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:07:46,322 INFO L134 CoverageAnalysis]: Checked inductivity of 1101 backedges. 481 proven. 0 refuted. 0 times theorem prover too weak. 620 trivial. 0 not checked. [2022-11-25 17:07:46,322 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:07:46,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:07:46,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157744925] [2022-11-25 17:07:46,323 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:07:46,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [316787863] [2022-11-25 17:07:46,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [316787863] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:07:46,323 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:07:46,324 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 17:07:46,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279831809] [2022-11-25 17:07:46,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:07:46,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 17:07:46,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:07:46,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 17:07:46,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:07:46,327 INFO L87 Difference]: Start difference. First operand 4343 states and 6254 transitions. Second operand has 4 states, 4 states have (on average 75.0) internal successors, (300), 4 states have internal predecessors, (300), 2 states have call successors, (95), 2 states have call predecessors, (95), 2 states have return successors, (90), 2 states have call predecessors, (90), 2 states have call successors, (90) [2022-11-25 17:07:47,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:07:47,439 INFO L93 Difference]: Finished difference Result 8723 states and 12657 transitions. [2022-11-25 17:07:47,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 17:07:47,440 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 75.0) internal successors, (300), 4 states have internal predecessors, (300), 2 states have call successors, (95), 2 states have call predecessors, (95), 2 states have return successors, (90), 2 states have call predecessors, (90), 2 states have call successors, (90) Word has length 649 [2022-11-25 17:07:47,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:07:47,463 INFO L225 Difference]: With dead ends: 8723 [2022-11-25 17:07:47,463 INFO L226 Difference]: Without dead ends: 4397 [2022-11-25 17:07:47,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 649 GetRequests, 646 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:07:47,480 INFO L413 NwaCegarLoop]: 5405 mSDtfsCounter, 47 mSDsluCounter, 10778 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 16183 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:07:47,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 16183 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:07:47,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4397 states. [2022-11-25 17:07:48,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4397 to 4347. [2022-11-25 17:07:48,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4347 states, 3109 states have (on average 1.334834351881634) internal successors, (4150), 3175 states have internal predecessors, (4150), 1046 states have call successors, (1046), 188 states have call predecessors, (1046), 190 states have return successors, (1062), 1028 states have call predecessors, (1062), 1046 states have call successors, (1062) [2022-11-25 17:07:48,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4347 states to 4347 states and 6258 transitions. [2022-11-25 17:07:48,282 INFO L78 Accepts]: Start accepts. Automaton has 4347 states and 6258 transitions. Word has length 649 [2022-11-25 17:07:48,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:07:48,282 INFO L495 AbstractCegarLoop]: Abstraction has 4347 states and 6258 transitions. [2022-11-25 17:07:48,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 75.0) internal successors, (300), 4 states have internal predecessors, (300), 2 states have call successors, (95), 2 states have call predecessors, (95), 2 states have return successors, (90), 2 states have call predecessors, (90), 2 states have call successors, (90) [2022-11-25 17:07:48,283 INFO L276 IsEmpty]: Start isEmpty. Operand 4347 states and 6258 transitions. [2022-11-25 17:07:48,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 661 [2022-11-25 17:07:48,304 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:07:48,304 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 8, 8, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:07:48,353 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-25 17:07:48,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-11-25 17:07:48,505 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:07:48,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:07:48,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1558036421, now seen corresponding path program 1 times [2022-11-25 17:07:48,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:07:48,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218524444] [2022-11-25 17:07:48,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:07:48,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:07:49,220 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:07:49,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [285850245] [2022-11-25 17:07:49,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:07:49,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:07:49,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:07:49,222 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:07:49,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-25 17:07:57,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:07:57,342 INFO L263 TraceCheckSpWp]: Trace formula consists of 9401 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-25 17:07:57,355 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:07:57,510 INFO L134 CoverageAnalysis]: Checked inductivity of 1132 backedges. 309 proven. 0 refuted. 0 times theorem prover too weak. 823 trivial. 0 not checked. [2022-11-25 17:07:57,511 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:07:57,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:07:57,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218524444] [2022-11-25 17:07:57,511 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:07:57,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [285850245] [2022-11-25 17:07:57,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [285850245] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:07:57,512 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:07:57,512 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-25 17:07:57,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110743999] [2022-11-25 17:07:57,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:07:57,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 17:07:57,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:07:57,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 17:07:57,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-25 17:07:57,515 INFO L87 Difference]: Start difference. First operand 4347 states and 6258 transitions. Second operand has 12 states, 11 states have (on average 26.545454545454547) internal successors, (292), 11 states have internal predecessors, (292), 5 states have call successors, (96), 2 states have call predecessors, (96), 4 states have return successors, (88), 5 states have call predecessors, (88), 5 states have call successors, (88) [2022-11-25 17:07:59,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:07:59,513 INFO L93 Difference]: Finished difference Result 9328 states and 13476 transitions. [2022-11-25 17:07:59,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 17:07:59,514 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 26.545454545454547) internal successors, (292), 11 states have internal predecessors, (292), 5 states have call successors, (96), 2 states have call predecessors, (96), 4 states have return successors, (88), 5 states have call predecessors, (88), 5 states have call successors, (88) Word has length 660 [2022-11-25 17:07:59,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:07:59,529 INFO L225 Difference]: With dead ends: 9328 [2022-11-25 17:07:59,529 INFO L226 Difference]: Without dead ends: 4997 [2022-11-25 17:07:59,542 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 669 GetRequests, 651 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=308, Unknown=0, NotChecked=0, Total=380 [2022-11-25 17:07:59,543 INFO L413 NwaCegarLoop]: 6326 mSDtfsCounter, 2115 mSDsluCounter, 60680 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 416 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2115 SdHoareTripleChecker+Valid, 67006 SdHoareTripleChecker+Invalid, 920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 416 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-25 17:07:59,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2115 Valid, 67006 Invalid, 920 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [416 Valid, 504 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-25 17:07:59,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4997 states. [2022-11-25 17:08:00,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4997 to 4355. [2022-11-25 17:08:00,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4355 states, 3115 states have (on average 1.3341894060995185) internal successors, (4156), 3181 states have internal predecessors, (4156), 1048 states have call successors, (1048), 188 states have call predecessors, (1048), 190 states have return successors, (1064), 1030 states have call predecessors, (1064), 1048 states have call successors, (1064) [2022-11-25 17:08:00,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4355 states to 4355 states and 6268 transitions. [2022-11-25 17:08:00,089 INFO L78 Accepts]: Start accepts. Automaton has 4355 states and 6268 transitions. Word has length 660 [2022-11-25 17:08:00,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:08:00,089 INFO L495 AbstractCegarLoop]: Abstraction has 4355 states and 6268 transitions. [2022-11-25 17:08:00,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 26.545454545454547) internal successors, (292), 11 states have internal predecessors, (292), 5 states have call successors, (96), 2 states have call predecessors, (96), 4 states have return successors, (88), 5 states have call predecessors, (88), 5 states have call successors, (88) [2022-11-25 17:08:00,090 INFO L276 IsEmpty]: Start isEmpty. Operand 4355 states and 6268 transitions. [2022-11-25 17:08:00,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 638 [2022-11-25 17:08:00,114 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:08:00,114 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 14, 14, 14, 8, 8, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:08:00,164 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-25 17:08:00,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-11-25 17:08:00,315 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:08:00,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:08:00,315 INFO L85 PathProgramCache]: Analyzing trace with hash -637020353, now seen corresponding path program 1 times [2022-11-25 17:08:00,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:08:00,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471203861] [2022-11-25 17:08:00,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:08:00,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:08:00,978 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:08:00,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1813722923] [2022-11-25 17:08:00,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:08:00,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:08:00,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:08:00,981 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:08:00,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-25 17:08:08,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:08,881 INFO L263 TraceCheckSpWp]: Trace formula consists of 9194 conjuncts, 34 conjunts are in the unsatisfiable core [2022-11-25 17:08:08,890 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:08:09,055 INFO L134 CoverageAnalysis]: Checked inductivity of 1050 backedges. 264 proven. 0 refuted. 0 times theorem prover too weak. 786 trivial. 0 not checked. [2022-11-25 17:08:09,055 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:08:09,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:08:09,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471203861] [2022-11-25 17:08:09,056 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:08:09,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1813722923] [2022-11-25 17:08:09,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1813722923] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:08:09,056 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:08:09,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-25 17:08:09,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805730238] [2022-11-25 17:08:09,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:08:09,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 17:08:09,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:08:09,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 17:08:09,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-25 17:08:09,060 INFO L87 Difference]: Start difference. First operand 4355 states and 6268 transitions. Second operand has 12 states, 11 states have (on average 26.09090909090909) internal successors, (287), 11 states have internal predecessors, (287), 5 states have call successors, (93), 2 states have call predecessors, (93), 4 states have return successors, (85), 5 states have call predecessors, (85), 5 states have call successors, (85) [2022-11-25 17:08:11,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:08:11,193 INFO L93 Difference]: Finished difference Result 9987 states and 14467 transitions. [2022-11-25 17:08:11,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-25 17:08:11,193 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 26.09090909090909) internal successors, (287), 11 states have internal predecessors, (287), 5 states have call successors, (93), 2 states have call predecessors, (93), 4 states have return successors, (85), 5 states have call predecessors, (85), 5 states have call successors, (85) Word has length 637 [2022-11-25 17:08:11,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:08:11,211 INFO L225 Difference]: With dead ends: 9987 [2022-11-25 17:08:11,211 INFO L226 Difference]: Without dead ends: 5648 [2022-11-25 17:08:11,224 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 648 GetRequests, 628 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=90, Invalid=372, Unknown=0, NotChecked=0, Total=462 [2022-11-25 17:08:11,225 INFO L413 NwaCegarLoop]: 6455 mSDtfsCounter, 2122 mSDsluCounter, 61834 mSDsCounter, 0 mSdLazyCounter, 540 mSolverCounterSat, 421 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2258 SdHoareTripleChecker+Valid, 68289 SdHoareTripleChecker+Invalid, 961 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 421 IncrementalHoareTripleChecker+Valid, 540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-25 17:08:11,225 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2258 Valid, 68289 Invalid, 961 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [421 Valid, 540 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-25 17:08:11,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5648 states. [2022-11-25 17:08:11,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5648 to 4355. [2022-11-25 17:08:11,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4355 states, 3115 states have (on average 1.3341894060995185) internal successors, (4156), 3181 states have internal predecessors, (4156), 1048 states have call successors, (1048), 188 states have call predecessors, (1048), 190 states have return successors, (1064), 1030 states have call predecessors, (1064), 1048 states have call successors, (1064) [2022-11-25 17:08:11,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4355 states to 4355 states and 6268 transitions. [2022-11-25 17:08:11,973 INFO L78 Accepts]: Start accepts. Automaton has 4355 states and 6268 transitions. Word has length 637 [2022-11-25 17:08:11,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:08:11,973 INFO L495 AbstractCegarLoop]: Abstraction has 4355 states and 6268 transitions. [2022-11-25 17:08:11,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 26.09090909090909) internal successors, (287), 11 states have internal predecessors, (287), 5 states have call successors, (93), 2 states have call predecessors, (93), 4 states have return successors, (85), 5 states have call predecessors, (85), 5 states have call successors, (85) [2022-11-25 17:08:11,974 INFO L276 IsEmpty]: Start isEmpty. Operand 4355 states and 6268 transitions. [2022-11-25 17:08:12,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 678 [2022-11-25 17:08:12,006 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:08:12,007 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 13, 13, 8, 8, 8, 8, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:08:12,063 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-25 17:08:12,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:08:12,208 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:08:12,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:08:12,208 INFO L85 PathProgramCache]: Analyzing trace with hash -734966527, now seen corresponding path program 1 times [2022-11-25 17:08:12,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:08:12,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175686194] [2022-11-25 17:08:12,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:08:12,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:08:13,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:13,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:08:13,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175686194] [2022-11-25 17:08:13,315 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-25 17:08:13,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1995192632] [2022-11-25 17:08:13,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:08:13,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:08:13,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:08:13,317 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:08:13,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-25 17:08:21,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:21,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 9287 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-25 17:08:21,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:08:21,858 INFO L134 CoverageAnalysis]: Checked inductivity of 1140 backedges. 364 proven. 0 refuted. 0 times theorem prover too weak. 776 trivial. 0 not checked. [2022-11-25 17:08:21,858 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:08:21,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1995192632] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:08:21,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:08:21,859 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-25 17:08:21,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412609342] [2022-11-25 17:08:21,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:08:21,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 17:08:21,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:08:21,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 17:08:21,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2022-11-25 17:08:21,862 INFO L87 Difference]: Start difference. First operand 4355 states and 6268 transitions. Second operand has 13 states, 12 states have (on average 25.333333333333332) internal successors, (304), 12 states have internal predecessors, (304), 6 states have call successors, (97), 2 states have call predecessors, (97), 4 states have return successors, (92), 6 states have call predecessors, (92), 6 states have call successors, (92) [2022-11-25 17:08:24,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:08:24,212 INFO L93 Difference]: Finished difference Result 9373 states and 13535 transitions. [2022-11-25 17:08:24,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-25 17:08:24,213 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 25.333333333333332) internal successors, (304), 12 states have internal predecessors, (304), 6 states have call successors, (97), 2 states have call predecessors, (97), 4 states have return successors, (92), 6 states have call predecessors, (92), 6 states have call successors, (92) Word has length 677 [2022-11-25 17:08:24,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:08:24,235 INFO L225 Difference]: With dead ends: 9373 [2022-11-25 17:08:24,235 INFO L226 Difference]: Without dead ends: 5034 [2022-11-25 17:08:24,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 694 GetRequests, 668 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=146, Invalid=610, Unknown=0, NotChecked=0, Total=756 [2022-11-25 17:08:24,250 INFO L413 NwaCegarLoop]: 6347 mSDtfsCounter, 2136 mSDsluCounter, 67111 mSDsCounter, 0 mSdLazyCounter, 661 mSolverCounterSat, 454 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2138 SdHoareTripleChecker+Valid, 73458 SdHoareTripleChecker+Invalid, 1115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 454 IncrementalHoareTripleChecker+Valid, 661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:08:24,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2138 Valid, 73458 Invalid, 1115 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [454 Valid, 661 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-25 17:08:24,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5034 states. [2022-11-25 17:08:24,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5034 to 4361. [2022-11-25 17:08:24,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4361 states, 3118 states have (on average 1.3338678640153945) internal successors, (4159), 3183 states have internal predecessors, (4159), 1051 states have call successors, (1051), 188 states have call predecessors, (1051), 190 states have return successors, (1067), 1033 states have call predecessors, (1067), 1051 states have call successors, (1067) [2022-11-25 17:08:24,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4361 states to 4361 states and 6277 transitions. [2022-11-25 17:08:24,956 INFO L78 Accepts]: Start accepts. Automaton has 4361 states and 6277 transitions. Word has length 677 [2022-11-25 17:08:24,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:08:24,957 INFO L495 AbstractCegarLoop]: Abstraction has 4361 states and 6277 transitions. [2022-11-25 17:08:24,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 25.333333333333332) internal successors, (304), 12 states have internal predecessors, (304), 6 states have call successors, (97), 2 states have call predecessors, (97), 4 states have return successors, (92), 6 states have call predecessors, (92), 6 states have call successors, (92) [2022-11-25 17:08:24,957 INFO L276 IsEmpty]: Start isEmpty. Operand 4361 states and 6277 transitions. [2022-11-25 17:08:24,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 868 [2022-11-25 17:08:24,988 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:08:24,988 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 15, 15, 15, 12, 12, 8, 8, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:08:25,043 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-11-25 17:08:25,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2022-11-25 17:08:25,190 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:08:25,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:08:25,190 INFO L85 PathProgramCache]: Analyzing trace with hash 586704065, now seen corresponding path program 1 times [2022-11-25 17:08:25,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:08:25,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849445571] [2022-11-25 17:08:25,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:08:25,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:08:25,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:26,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:08:26,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849445571] [2022-11-25 17:08:26,448 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-25 17:08:26,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1028626871] [2022-11-25 17:08:26,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:08:26,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:08:26,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:08:26,451 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:08:26,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-11-25 17:08:35,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:35,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 11111 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 17:08:35,762 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:08:35,793 INFO L134 CoverageAnalysis]: Checked inductivity of 1638 backedges. 428 proven. 0 refuted. 0 times theorem prover too weak. 1210 trivial. 0 not checked. [2022-11-25 17:08:35,794 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:08:35,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1028626871] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:08:35,794 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:08:35,795 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:08:35,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548299666] [2022-11-25 17:08:35,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:08:35,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:08:35,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:08:35,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:08:35,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:08:35,802 INFO L87 Difference]: Start difference. First operand 4361 states and 6277 transitions. Second operand has 3 states, 3 states have (on average 133.0) internal successors, (399), 3 states have internal predecessors, (399), 2 states have call successors, (122), 2 states have call predecessors, (122), 2 states have return successors, (118), 2 states have call predecessors, (118), 2 states have call successors, (118) [2022-11-25 17:08:36,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:08:36,409 INFO L93 Difference]: Finished difference Result 8717 states and 12551 transitions. [2022-11-25 17:08:36,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:08:36,410 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 133.0) internal successors, (399), 3 states have internal predecessors, (399), 2 states have call successors, (122), 2 states have call predecessors, (122), 2 states have return successors, (118), 2 states have call predecessors, (118), 2 states have call successors, (118) Word has length 867 [2022-11-25 17:08:36,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:08:36,428 INFO L225 Difference]: With dead ends: 8717 [2022-11-25 17:08:36,429 INFO L226 Difference]: Without dead ends: 4373 [2022-11-25 17:08:36,444 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 866 GetRequests, 865 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:08:36,445 INFO L413 NwaCegarLoop]: 5401 mSDtfsCounter, 10 mSDsluCounter, 5392 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 10793 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:08:36,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 10793 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:08:36,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4373 states. [2022-11-25 17:08:37,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4373 to 4362. [2022-11-25 17:08:37,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4362 states, 3119 states have (on average 1.3337608207758898) internal successors, (4160), 3184 states have internal predecessors, (4160), 1051 states have call successors, (1051), 188 states have call predecessors, (1051), 190 states have return successors, (1067), 1033 states have call predecessors, (1067), 1051 states have call successors, (1067) [2022-11-25 17:08:37,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4362 states to 4362 states and 6278 transitions. [2022-11-25 17:08:37,089 INFO L78 Accepts]: Start accepts. Automaton has 4362 states and 6278 transitions. Word has length 867 [2022-11-25 17:08:37,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:08:37,090 INFO L495 AbstractCegarLoop]: Abstraction has 4362 states and 6278 transitions. [2022-11-25 17:08:37,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 133.0) internal successors, (399), 3 states have internal predecessors, (399), 2 states have call successors, (122), 2 states have call predecessors, (122), 2 states have return successors, (118), 2 states have call predecessors, (118), 2 states have call successors, (118) [2022-11-25 17:08:37,090 INFO L276 IsEmpty]: Start isEmpty. Operand 4362 states and 6278 transitions. [2022-11-25 17:08:37,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 869 [2022-11-25 17:08:37,120 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:08:37,120 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 15, 15, 15, 12, 12, 8, 8, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:08:37,176 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-11-25 17:08:37,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:08:37,321 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:08:37,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:08:37,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1886569087, now seen corresponding path program 1 times [2022-11-25 17:08:37,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:08:37,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128895720] [2022-11-25 17:08:37,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:08:37,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:08:38,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:38,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:08:38,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128895720] [2022-11-25 17:08:38,205 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-25 17:08:38,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [941568751] [2022-11-25 17:08:38,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:08:38,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:08:38,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:08:38,211 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:08:38,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-11-25 17:08:47,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:47,878 INFO L263 TraceCheckSpWp]: Trace formula consists of 11157 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 17:08:47,889 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:08:47,919 INFO L134 CoverageAnalysis]: Checked inductivity of 1638 backedges. 546 proven. 0 refuted. 0 times theorem prover too weak. 1092 trivial. 0 not checked. [2022-11-25 17:08:47,919 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:08:47,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [941568751] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:08:47,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:08:47,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:08:47,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089081743] [2022-11-25 17:08:47,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:08:47,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:08:47,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:08:47,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:08:47,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:08:47,924 INFO L87 Difference]: Start difference. First operand 4362 states and 6278 transitions. Second operand has 3 states, 3 states have (on average 134.0) internal successors, (402), 3 states have internal predecessors, (402), 2 states have call successors, (121), 2 states have call predecessors, (121), 2 states have return successors, (117), 2 states have call predecessors, (117), 2 states have call successors, (117) [2022-11-25 17:08:48,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:08:48,702 INFO L93 Difference]: Finished difference Result 8712 states and 12540 transitions. [2022-11-25 17:08:48,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:08:48,702 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 134.0) internal successors, (402), 3 states have internal predecessors, (402), 2 states have call successors, (121), 2 states have call predecessors, (121), 2 states have return successors, (117), 2 states have call predecessors, (117), 2 states have call successors, (117) Word has length 868 [2022-11-25 17:08:48,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:08:48,729 INFO L225 Difference]: With dead ends: 8712 [2022-11-25 17:08:48,729 INFO L226 Difference]: Without dead ends: 4367 [2022-11-25 17:08:48,748 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 867 GetRequests, 866 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:08:48,749 INFO L413 NwaCegarLoop]: 5401 mSDtfsCounter, 2 mSDsluCounter, 5393 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 10794 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:08:48,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 10794 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:08:48,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4367 states. [2022-11-25 17:08:49,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4367 to 4363. [2022-11-25 17:08:49,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4363 states, 3120 states have (on average 1.333653846153846) internal successors, (4161), 3185 states have internal predecessors, (4161), 1051 states have call successors, (1051), 188 states have call predecessors, (1051), 190 states have return successors, (1067), 1033 states have call predecessors, (1067), 1051 states have call successors, (1067) [2022-11-25 17:08:49,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4363 states to 4363 states and 6279 transitions. [2022-11-25 17:08:49,471 INFO L78 Accepts]: Start accepts. Automaton has 4363 states and 6279 transitions. Word has length 868 [2022-11-25 17:08:49,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:08:49,472 INFO L495 AbstractCegarLoop]: Abstraction has 4363 states and 6279 transitions. [2022-11-25 17:08:49,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 134.0) internal successors, (402), 3 states have internal predecessors, (402), 2 states have call successors, (121), 2 states have call predecessors, (121), 2 states have return successors, (117), 2 states have call predecessors, (117), 2 states have call successors, (117) [2022-11-25 17:08:49,472 INFO L276 IsEmpty]: Start isEmpty. Operand 4363 states and 6279 transitions. [2022-11-25 17:08:49,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 816 [2022-11-25 17:08:49,500 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:08:49,500 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 16, 16, 10, 10, 9, 9, 8, 8, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:08:49,562 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-11-25 17:08:49,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:08:49,715 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:08:49,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:08:49,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1258886693, now seen corresponding path program 1 times [2022-11-25 17:08:49,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:08:49,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758279556] [2022-11-25 17:08:49,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:08:49,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:08:50,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:50,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:08:50,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758279556] [2022-11-25 17:08:50,705 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-25 17:08:50,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1521045286] [2022-11-25 17:08:50,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:08:50,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:08:50,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:08:50,707 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:08:50,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-11-25 17:08:59,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:59,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 10119 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 17:08:59,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:09:00,006 INFO L134 CoverageAnalysis]: Checked inductivity of 1591 backedges. 645 proven. 1 refuted. 0 times theorem prover too weak. 945 trivial. 0 not checked. [2022-11-25 17:09:00,006 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:09:00,628 INFO L134 CoverageAnalysis]: Checked inductivity of 1591 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1587 trivial. 0 not checked. [2022-11-25 17:09:00,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1521045286] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:09:00,628 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 17:09:00,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-11-25 17:09:00,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302157858] [2022-11-25 17:09:00,629 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 17:09:00,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:09:00,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:09:00,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:09:00,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:09:00,633 INFO L87 Difference]: Start difference. First operand 4363 states and 6279 transitions. Second operand has 6 states, 6 states have (on average 88.16666666666667) internal successors, (529), 6 states have internal predecessors, (529), 4 states have call successors, (196), 2 states have call predecessors, (196), 2 states have return successors, (191), 4 states have call predecessors, (191), 4 states have call successors, (191) [2022-11-25 17:09:01,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:09:01,239 INFO L93 Difference]: Finished difference Result 8724 states and 12558 transitions. [2022-11-25 17:09:01,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:09:01,240 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 88.16666666666667) internal successors, (529), 6 states have internal predecessors, (529), 4 states have call successors, (196), 2 states have call predecessors, (196), 2 states have return successors, (191), 4 states have call predecessors, (191), 4 states have call successors, (191) Word has length 815 [2022-11-25 17:09:01,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:09:01,259 INFO L225 Difference]: With dead ends: 8724 [2022-11-25 17:09:01,259 INFO L226 Difference]: Without dead ends: 4378 [2022-11-25 17:09:01,275 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1628 GetRequests, 1624 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:09:01,275 INFO L413 NwaCegarLoop]: 5405 mSDtfsCounter, 4 mSDsluCounter, 10783 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 16188 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:09:01,276 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 16188 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:09:01,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4378 states. [2022-11-25 17:09:01,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4378 to 4378. [2022-11-25 17:09:01,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4378 states, 3129 states have (on average 1.3326941514860977) internal successors, (4170), 3194 states have internal predecessors, (4170), 1057 states have call successors, (1057), 188 states have call predecessors, (1057), 190 states have return successors, (1073), 1039 states have call predecessors, (1073), 1057 states have call successors, (1073) [2022-11-25 17:09:01,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4378 states to 4378 states and 6300 transitions. [2022-11-25 17:09:01,926 INFO L78 Accepts]: Start accepts. Automaton has 4378 states and 6300 transitions. Word has length 815 [2022-11-25 17:09:01,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:09:01,926 INFO L495 AbstractCegarLoop]: Abstraction has 4378 states and 6300 transitions. [2022-11-25 17:09:01,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 88.16666666666667) internal successors, (529), 6 states have internal predecessors, (529), 4 states have call successors, (196), 2 states have call predecessors, (196), 2 states have return successors, (191), 4 states have call predecessors, (191), 4 states have call successors, (191) [2022-11-25 17:09:01,927 INFO L276 IsEmpty]: Start isEmpty. Operand 4378 states and 6300 transitions. [2022-11-25 17:09:01,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 835 [2022-11-25 17:09:01,947 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:09:01,947 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 16, 16, 16, 11, 11, 10, 10, 9, 9, 9, 9, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:09:02,001 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-11-25 17:09:02,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2022-11-25 17:09:02,148 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:09:02,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:09:02,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1855082468, now seen corresponding path program 1 times [2022-11-25 17:09:02,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:09:02,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21174001] [2022-11-25 17:09:02,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:09:02,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:09:02,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:09:03,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:09:03,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21174001] [2022-11-25 17:09:03,106 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-25 17:09:03,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1141994501] [2022-11-25 17:09:03,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:09:03,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:09:03,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:09:03,108 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:09:03,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-11-25 17:09:12,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:09:12,516 INFO L263 TraceCheckSpWp]: Trace formula consists of 10243 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 17:09:12,528 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:09:12,648 INFO L134 CoverageAnalysis]: Checked inductivity of 1719 backedges. 663 proven. 34 refuted. 0 times theorem prover too weak. 1022 trivial. 0 not checked. [2022-11-25 17:09:12,648 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:09:13,729 INFO L134 CoverageAnalysis]: Checked inductivity of 1719 backedges. 3 proven. 38 refuted. 0 times theorem prover too weak. 1678 trivial. 0 not checked. [2022-11-25 17:09:13,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1141994501] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:09:13,730 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 17:09:13,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2022-11-25 17:09:13,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700713709] [2022-11-25 17:09:13,731 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 17:09:13,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 17:09:13,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:09:13,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 17:09:13,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-25 17:09:13,735 INFO L87 Difference]: Start difference. First operand 4378 states and 6300 transitions. Second operand has 7 states, 7 states have (on average 75.71428571428571) internal successors, (530), 7 states have internal predecessors, (530), 6 states have call successors, (200), 2 states have call predecessors, (200), 2 states have return successors, (192), 6 states have call predecessors, (192), 6 states have call successors, (192) [2022-11-25 17:09:14,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:09:14,392 INFO L93 Difference]: Finished difference Result 8744 states and 12584 transitions. [2022-11-25 17:09:14,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 17:09:14,393 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 75.71428571428571) internal successors, (530), 7 states have internal predecessors, (530), 6 states have call successors, (200), 2 states have call predecessors, (200), 2 states have return successors, (192), 6 states have call predecessors, (192), 6 states have call successors, (192) Word has length 834 [2022-11-25 17:09:14,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:09:14,413 INFO L225 Difference]: With dead ends: 8744 [2022-11-25 17:09:14,414 INFO L226 Difference]: Without dead ends: 4383 [2022-11-25 17:09:14,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1666 GetRequests, 1657 SyntacticMatches, 4 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-25 17:09:14,429 INFO L413 NwaCegarLoop]: 5407 mSDtfsCounter, 2 mSDsluCounter, 10784 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 16191 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:09:14,429 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 16191 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:09:14,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4383 states. [2022-11-25 17:09:14,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4383 to 4383. [2022-11-25 17:09:14,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4383 states, 3132 states have (on average 1.332375478927203) internal successors, (4173), 3197 states have internal predecessors, (4173), 1059 states have call successors, (1059), 188 states have call predecessors, (1059), 190 states have return successors, (1075), 1041 states have call predecessors, (1075), 1059 states have call successors, (1075) [2022-11-25 17:09:14,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4383 states to 4383 states and 6307 transitions. [2022-11-25 17:09:14,957 INFO L78 Accepts]: Start accepts. Automaton has 4383 states and 6307 transitions. Word has length 834 [2022-11-25 17:09:14,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:09:14,957 INFO L495 AbstractCegarLoop]: Abstraction has 4383 states and 6307 transitions. [2022-11-25 17:09:14,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 75.71428571428571) internal successors, (530), 7 states have internal predecessors, (530), 6 states have call successors, (200), 2 states have call predecessors, (200), 2 states have return successors, (192), 6 states have call predecessors, (192), 6 states have call successors, (192) [2022-11-25 17:09:14,957 INFO L276 IsEmpty]: Start isEmpty. Operand 4383 states and 6307 transitions. [2022-11-25 17:09:14,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 871 [2022-11-25 17:09:14,977 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:09:14,978 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 17, 17, 17, 12, 12, 10, 10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:09:15,033 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-11-25 17:09:15,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2022-11-25 17:09:15,179 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:09:15,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:09:15,179 INFO L85 PathProgramCache]: Analyzing trace with hash 924283034, now seen corresponding path program 1 times [2022-11-25 17:09:15,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:09:15,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736912987] [2022-11-25 17:09:15,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:09:15,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:09:15,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:09:16,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:09:16,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736912987] [2022-11-25 17:09:16,572 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-25 17:09:16,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1714025248] [2022-11-25 17:09:16,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:09:16,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:09:16,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:09:16,574 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:09:16,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-11-25 17:09:26,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:09:26,431 INFO L263 TraceCheckSpWp]: Trace formula consists of 10484 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 17:09:26,449 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:09:26,507 INFO L134 CoverageAnalysis]: Checked inductivity of 1899 backedges. 714 proven. 0 refuted. 0 times theorem prover too weak. 1185 trivial. 0 not checked. [2022-11-25 17:09:26,507 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:09:26,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1714025248] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:09:26,508 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:09:26,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 17:09:26,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078679469] [2022-11-25 17:09:26,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:09:26,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 17:09:26,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:09:26,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 17:09:26,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:09:26,516 INFO L87 Difference]: Start difference. First operand 4383 states and 6307 transitions. Second operand has 4 states, 4 states have (on average 91.75) internal successors, (367), 4 states have internal predecessors, (367), 2 states have call successors, (121), 2 states have call predecessors, (121), 2 states have return successors, (113), 2 states have call predecessors, (113), 2 states have call successors, (113) [2022-11-25 17:09:27,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:09:27,560 INFO L93 Difference]: Finished difference Result 8912 states and 12825 transitions. [2022-11-25 17:09:27,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 17:09:27,560 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 91.75) internal successors, (367), 4 states have internal predecessors, (367), 2 states have call successors, (121), 2 states have call predecessors, (121), 2 states have return successors, (113), 2 states have call predecessors, (113), 2 states have call successors, (113) Word has length 870 [2022-11-25 17:09:27,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:09:27,581 INFO L225 Difference]: With dead ends: 8912 [2022-11-25 17:09:27,581 INFO L226 Difference]: Without dead ends: 4546 [2022-11-25 17:09:27,595 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 871 GetRequests, 868 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:09:27,595 INFO L413 NwaCegarLoop]: 5557 mSDtfsCounter, 174 mSDsluCounter, 10931 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 16488 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:09:27,596 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 16488 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:09:27,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4546 states. [2022-11-25 17:09:28,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4546 to 4385. [2022-11-25 17:09:28,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4385 states, 3134 states have (on average 1.332163369495852) internal successors, (4175), 3199 states have internal predecessors, (4175), 1059 states have call successors, (1059), 188 states have call predecessors, (1059), 190 states have return successors, (1075), 1041 states have call predecessors, (1075), 1059 states have call successors, (1075) [2022-11-25 17:09:28,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4385 states to 4385 states and 6309 transitions. [2022-11-25 17:09:28,155 INFO L78 Accepts]: Start accepts. Automaton has 4385 states and 6309 transitions. Word has length 870 [2022-11-25 17:09:28,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:09:28,156 INFO L495 AbstractCegarLoop]: Abstraction has 4385 states and 6309 transitions. [2022-11-25 17:09:28,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 91.75) internal successors, (367), 4 states have internal predecessors, (367), 2 states have call successors, (121), 2 states have call predecessors, (121), 2 states have return successors, (113), 2 states have call predecessors, (113), 2 states have call successors, (113) [2022-11-25 17:09:28,157 INFO L276 IsEmpty]: Start isEmpty. Operand 4385 states and 6309 transitions. [2022-11-25 17:09:28,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 908 [2022-11-25 17:09:28,184 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:09:28,185 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 16, 16, 12, 12, 10, 10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:09:28,248 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-11-25 17:09:28,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:09:28,386 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:09:28,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:09:28,386 INFO L85 PathProgramCache]: Analyzing trace with hash 333357209, now seen corresponding path program 1 times [2022-11-25 17:09:28,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:09:28,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148195650] [2022-11-25 17:09:28,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:09:28,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:09:28,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:09:29,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:09:29,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148195650] [2022-11-25 17:09:29,009 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-25 17:09:29,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [688068775] [2022-11-25 17:09:29,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:09:29,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:09:29,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:09:29,011 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:09:29,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-11-25 17:09:39,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:09:39,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 10526 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 17:09:39,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:09:39,362 INFO L134 CoverageAnalysis]: Checked inductivity of 1956 backedges. 540 proven. 0 refuted. 0 times theorem prover too weak. 1416 trivial. 0 not checked. [2022-11-25 17:09:39,363 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:09:39,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [688068775] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:09:39,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:09:39,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:09:39,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887140904] [2022-11-25 17:09:39,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:09:39,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:09:39,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:09:39,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:09:39,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:09:39,367 INFO L87 Difference]: Start difference. First operand 4385 states and 6309 transitions. Second operand has 3 states, 3 states have (on average 126.0) internal successors, (378), 3 states have internal predecessors, (378), 2 states have call successors, (126), 2 states have call predecessors, (126), 2 states have return successors, (121), 2 states have call predecessors, (121), 2 states have call successors, (121) [2022-11-25 17:09:40,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:09:40,010 INFO L93 Difference]: Finished difference Result 8759 states and 12606 transitions. [2022-11-25 17:09:40,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:09:40,010 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 126.0) internal successors, (378), 3 states have internal predecessors, (378), 2 states have call successors, (126), 2 states have call predecessors, (126), 2 states have return successors, (121), 2 states have call predecessors, (121), 2 states have call successors, (121) Word has length 907 [2022-11-25 17:09:40,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:09:40,029 INFO L225 Difference]: With dead ends: 8759 [2022-11-25 17:09:40,029 INFO L226 Difference]: Without dead ends: 4391 [2022-11-25 17:09:40,044 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 906 GetRequests, 905 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:09:40,045 INFO L413 NwaCegarLoop]: 5399 mSDtfsCounter, 3 mSDsluCounter, 5393 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 10792 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:09:40,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 10792 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:09:40,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4391 states. [2022-11-25 17:09:40,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4391 to 4386. [2022-11-25 17:09:40,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4386 states, 3135 states have (on average 1.3320574162679426) internal successors, (4176), 3200 states have internal predecessors, (4176), 1059 states have call successors, (1059), 188 states have call predecessors, (1059), 190 states have return successors, (1075), 1041 states have call predecessors, (1075), 1059 states have call successors, (1075) [2022-11-25 17:09:40,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4386 states to 4386 states and 6310 transitions. [2022-11-25 17:09:40,611 INFO L78 Accepts]: Start accepts. Automaton has 4386 states and 6310 transitions. Word has length 907 [2022-11-25 17:09:40,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:09:40,611 INFO L495 AbstractCegarLoop]: Abstraction has 4386 states and 6310 transitions. [2022-11-25 17:09:40,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 126.0) internal successors, (378), 3 states have internal predecessors, (378), 2 states have call successors, (126), 2 states have call predecessors, (126), 2 states have return successors, (121), 2 states have call predecessors, (121), 2 states have call successors, (121) [2022-11-25 17:09:40,612 INFO L276 IsEmpty]: Start isEmpty. Operand 4386 states and 6310 transitions. [2022-11-25 17:09:40,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 871 [2022-11-25 17:09:40,631 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:09:40,631 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 16, 16, 16, 12, 12, 11, 11, 10, 10, 9, 9, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:09:40,686 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-11-25 17:09:40,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2022-11-25 17:09:40,832 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:09:40,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:09:40,833 INFO L85 PathProgramCache]: Analyzing trace with hash 441405279, now seen corresponding path program 1 times [2022-11-25 17:09:40,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:09:40,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413657180] [2022-11-25 17:09:40,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:09:40,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:09:41,585 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:09:41,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1616278671] [2022-11-25 17:09:41,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:09:41,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:09:41,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:09:41,587 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:09:41,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-11-25 17:09:52,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:09:52,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 10319 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-25 17:09:52,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:09:53,068 INFO L134 CoverageAnalysis]: Checked inductivity of 1830 backedges. 679 proven. 0 refuted. 0 times theorem prover too weak. 1151 trivial. 0 not checked. [2022-11-25 17:09:53,069 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:09:53,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:09:53,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413657180] [2022-11-25 17:09:53,069 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:09:53,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1616278671] [2022-11-25 17:09:53,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1616278671] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:09:53,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:09:53,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-25 17:09:53,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241491904] [2022-11-25 17:09:53,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:09:53,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-25 17:09:53,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:09:53,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-25 17:09:53,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2022-11-25 17:09:53,073 INFO L87 Difference]: Start difference. First operand 4386 states and 6310 transitions. Second operand has 14 states, 13 states have (on average 28.76923076923077) internal successors, (374), 13 states have internal predecessors, (374), 6 states have call successors, (124), 2 states have call predecessors, (124), 4 states have return successors, (116), 6 states have call predecessors, (116), 6 states have call successors, (116) [2022-11-25 17:09:56,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:09:56,324 INFO L93 Difference]: Finished difference Result 9665 states and 13946 transitions. [2022-11-25 17:09:56,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-11-25 17:09:56,325 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 28.76923076923077) internal successors, (374), 13 states have internal predecessors, (374), 6 states have call successors, (124), 2 states have call predecessors, (124), 4 states have return successors, (116), 6 states have call predecessors, (116), 6 states have call successors, (116) Word has length 870 [2022-11-25 17:09:56,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:09:56,345 INFO L225 Difference]: With dead ends: 9665 [2022-11-25 17:09:56,345 INFO L226 Difference]: Without dead ends: 5295 [2022-11-25 17:09:56,362 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 905 GetRequests, 863 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=350, Invalid=1542, Unknown=0, NotChecked=0, Total=1892 [2022-11-25 17:09:56,362 INFO L413 NwaCegarLoop]: 6483 mSDtfsCounter, 2316 mSDsluCounter, 74859 mSDsCounter, 0 mSdLazyCounter, 927 mSolverCounterSat, 573 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2332 SdHoareTripleChecker+Valid, 81342 SdHoareTripleChecker+Invalid, 1500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 573 IncrementalHoareTripleChecker+Valid, 927 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-25 17:09:56,362 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2332 Valid, 81342 Invalid, 1500 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [573 Valid, 927 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-25 17:09:56,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5295 states. [2022-11-25 17:09:56,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5295 to 4387. [2022-11-25 17:09:56,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4387 states, 3135 states have (on average 1.3320574162679426) internal successors, (4176), 3201 states have internal predecessors, (4176), 1060 states have call successors, (1060), 188 states have call predecessors, (1060), 190 states have return successors, (1076), 1042 states have call predecessors, (1076), 1060 states have call successors, (1076) [2022-11-25 17:09:56,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4387 states to 4387 states and 6312 transitions. [2022-11-25 17:09:56,952 INFO L78 Accepts]: Start accepts. Automaton has 4387 states and 6312 transitions. Word has length 870 [2022-11-25 17:09:56,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:09:56,953 INFO L495 AbstractCegarLoop]: Abstraction has 4387 states and 6312 transitions. [2022-11-25 17:09:56,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 28.76923076923077) internal successors, (374), 13 states have internal predecessors, (374), 6 states have call successors, (124), 2 states have call predecessors, (124), 4 states have return successors, (116), 6 states have call predecessors, (116), 6 states have call successors, (116) [2022-11-25 17:09:56,954 INFO L276 IsEmpty]: Start isEmpty. Operand 4387 states and 6312 transitions. [2022-11-25 17:09:56,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1030 [2022-11-25 17:09:56,981 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:09:56,981 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 18, 18, 18, 13, 13, 12, 12, 11, 11, 10, 10, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:09:57,049 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-11-25 17:09:57,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2022-11-25 17:09:57,182 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:09:57,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:09:57,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1765724020, now seen corresponding path program 1 times [2022-11-25 17:09:57,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:09:57,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272171730] [2022-11-25 17:09:57,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:09:57,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:09:57,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:09:58,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:09:58,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272171730] [2022-11-25 17:09:58,145 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-25 17:09:58,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [110538192] [2022-11-25 17:09:58,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:09:58,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:09:58,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:09:58,147 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:09:58,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-11-25 17:10:09,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:10:09,634 INFO L263 TraceCheckSpWp]: Trace formula consists of 11797 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 17:10:09,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:10:09,789 INFO L134 CoverageAnalysis]: Checked inductivity of 2450 backedges. 904 proven. 0 refuted. 0 times theorem prover too weak. 1546 trivial. 0 not checked. [2022-11-25 17:10:09,789 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:10:09,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [110538192] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:10:09,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:10:09,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:10:09,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122222729] [2022-11-25 17:10:09,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:10:09,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:10:09,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:10:09,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:10:09,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:10:09,793 INFO L87 Difference]: Start difference. First operand 4387 states and 6312 transitions. Second operand has 3 states, 3 states have (on average 149.0) internal successors, (447), 3 states have internal predecessors, (447), 2 states have call successors, (138), 2 states have call predecessors, (138), 2 states have return successors, (130), 2 states have call predecessors, (130), 2 states have call successors, (130) [2022-11-25 17:10:10,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:10:10,592 INFO L93 Difference]: Finished difference Result 9454 states and 13649 transitions. [2022-11-25 17:10:10,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:10:10,592 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 149.0) internal successors, (447), 3 states have internal predecessors, (447), 2 states have call successors, (138), 2 states have call predecessors, (138), 2 states have return successors, (130), 2 states have call predecessors, (130), 2 states have call successors, (130) Word has length 1029 [2022-11-25 17:10:10,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:10:10,621 INFO L225 Difference]: With dead ends: 9454 [2022-11-25 17:10:10,621 INFO L226 Difference]: Without dead ends: 5084 [2022-11-25 17:10:10,642 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1028 GetRequests, 1027 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:10:10,643 INFO L413 NwaCegarLoop]: 5764 mSDtfsCounter, 702 mSDsluCounter, 5427 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 843 SdHoareTripleChecker+Valid, 11191 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:10:10,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [843 Valid, 11191 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:10:10,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5084 states. [2022-11-25 17:10:11,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5084 to 4398. [2022-11-25 17:10:11,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4398 states, 3146 states have (on average 1.3324856961220597) internal successors, (4192), 3212 states have internal predecessors, (4192), 1060 states have call successors, (1060), 188 states have call predecessors, (1060), 190 states have return successors, (1076), 1042 states have call predecessors, (1076), 1060 states have call successors, (1076) [2022-11-25 17:10:11,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4398 states to 4398 states and 6328 transitions. [2022-11-25 17:10:11,266 INFO L78 Accepts]: Start accepts. Automaton has 4398 states and 6328 transitions. Word has length 1029 [2022-11-25 17:10:11,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:10:11,267 INFO L495 AbstractCegarLoop]: Abstraction has 4398 states and 6328 transitions. [2022-11-25 17:10:11,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 149.0) internal successors, (447), 3 states have internal predecessors, (447), 2 states have call successors, (138), 2 states have call predecessors, (138), 2 states have return successors, (130), 2 states have call predecessors, (130), 2 states have call successors, (130) [2022-11-25 17:10:11,267 INFO L276 IsEmpty]: Start isEmpty. Operand 4398 states and 6328 transitions. [2022-11-25 17:10:11,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 951 [2022-11-25 17:10:11,343 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:10:11,344 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 16, 16, 16, 13, 13, 12, 12, 10, 10, 9, 9, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:10:11,413 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2022-11-25 17:10:11,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2022-11-25 17:10:11,545 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:10:11,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:10:11,545 INFO L85 PathProgramCache]: Analyzing trace with hash 640069008, now seen corresponding path program 1 times [2022-11-25 17:10:11,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:10:11,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436355350] [2022-11-25 17:10:11,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:10:11,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:10:12,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:10:13,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:10:13,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436355350] [2022-11-25 17:10:13,060 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-25 17:10:13,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1369038884] [2022-11-25 17:10:13,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:10:13,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:10:13,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:10:13,067 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:10:13,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-11-25 17:10:25,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:10:25,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 11449 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 17:10:25,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:10:25,184 INFO L134 CoverageAnalysis]: Checked inductivity of 2061 backedges. 826 proven. 0 refuted. 0 times theorem prover too weak. 1235 trivial. 0 not checked. [2022-11-25 17:10:25,185 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:10:25,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1369038884] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:10:25,185 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:10:25,186 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:10:25,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426025381] [2022-11-25 17:10:25,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:10:25,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:10:25,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:10:25,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:10:25,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:10:25,190 INFO L87 Difference]: Start difference. First operand 4398 states and 6328 transitions. Second operand has 3 states, 3 states have (on average 137.66666666666666) internal successors, (413), 3 states have internal predecessors, (413), 2 states have call successors, (127), 2 states have call predecessors, (127), 2 states have return successors, (123), 2 states have call predecessors, (123), 2 states have call successors, (123) [2022-11-25 17:10:25,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:10:25,930 INFO L93 Difference]: Finished difference Result 8787 states and 12644 transitions. [2022-11-25 17:10:25,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:10:25,931 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 137.66666666666666) internal successors, (413), 3 states have internal predecessors, (413), 2 states have call successors, (127), 2 states have call predecessors, (127), 2 states have return successors, (123), 2 states have call predecessors, (123), 2 states have call successors, (123) Word has length 950 [2022-11-25 17:10:25,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:10:25,951 INFO L225 Difference]: With dead ends: 8787 [2022-11-25 17:10:25,951 INFO L226 Difference]: Without dead ends: 4406 [2022-11-25 17:10:25,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 949 GetRequests, 948 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:10:25,968 INFO L413 NwaCegarLoop]: 5393 mSDtfsCounter, 4 mSDsluCounter, 5380 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 10773 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:10:25,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 10773 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:10:25,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4406 states. [2022-11-25 17:10:26,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4406 to 4402. [2022-11-25 17:10:26,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4402 states, 3150 states have (on average 1.3320634920634922) internal successors, (4196), 3216 states have internal predecessors, (4196), 1060 states have call successors, (1060), 188 states have call predecessors, (1060), 190 states have return successors, (1076), 1042 states have call predecessors, (1076), 1060 states have call successors, (1076) [2022-11-25 17:10:26,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4402 states to 4402 states and 6332 transitions. [2022-11-25 17:10:26,682 INFO L78 Accepts]: Start accepts. Automaton has 4402 states and 6332 transitions. Word has length 950 [2022-11-25 17:10:26,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:10:26,682 INFO L495 AbstractCegarLoop]: Abstraction has 4402 states and 6332 transitions. [2022-11-25 17:10:26,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 137.66666666666666) internal successors, (413), 3 states have internal predecessors, (413), 2 states have call successors, (127), 2 states have call predecessors, (127), 2 states have return successors, (123), 2 states have call predecessors, (123), 2 states have call successors, (123) [2022-11-25 17:10:26,683 INFO L276 IsEmpty]: Start isEmpty. Operand 4402 states and 6332 transitions. [2022-11-25 17:10:26,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 953 [2022-11-25 17:10:26,722 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:10:26,723 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 16, 16, 16, 13, 13, 12, 12, 10, 10, 9, 9, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:10:26,804 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2022-11-25 17:10:26,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2022-11-25 17:10:26,939 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:10:26,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:10:26,940 INFO L85 PathProgramCache]: Analyzing trace with hash 144760398, now seen corresponding path program 1 times [2022-11-25 17:10:26,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:10:26,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301189798] [2022-11-25 17:10:26,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:10:26,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:10:27,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:10:28,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:10:28,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301189798] [2022-11-25 17:10:28,204 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-25 17:10:28,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2035451808] [2022-11-25 17:10:28,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:10:28,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:10:28,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:10:28,207 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:10:28,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-11-25 17:10:39,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:10:40,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 11451 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 17:10:40,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:10:40,046 INFO L134 CoverageAnalysis]: Checked inductivity of 2062 backedges. 880 proven. 0 refuted. 0 times theorem prover too weak. 1182 trivial. 0 not checked. [2022-11-25 17:10:40,046 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:10:40,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2035451808] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:10:40,046 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:10:40,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:10:40,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279464132] [2022-11-25 17:10:40,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:10:40,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:10:40,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:10:40,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:10:40,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:10:40,050 INFO L87 Difference]: Start difference. First operand 4402 states and 6332 transitions. Second operand has 3 states, 3 states have (on average 141.0) internal successors, (423), 3 states have internal predecessors, (423), 2 states have call successors, (128), 2 states have call predecessors, (128), 2 states have return successors, (124), 2 states have call predecessors, (124), 2 states have call successors, (124) [2022-11-25 17:10:40,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:10:40,984 INFO L93 Difference]: Finished difference Result 8789 states and 12643 transitions. [2022-11-25 17:10:40,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:10:40,985 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 141.0) internal successors, (423), 3 states have internal predecessors, (423), 2 states have call successors, (128), 2 states have call predecessors, (128), 2 states have return successors, (124), 2 states have call predecessors, (124), 2 states have call successors, (124) Word has length 952 [2022-11-25 17:10:40,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:10:41,007 INFO L225 Difference]: With dead ends: 8789 [2022-11-25 17:10:41,008 INFO L226 Difference]: Without dead ends: 4404 [2022-11-25 17:10:41,028 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 951 GetRequests, 950 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:10:41,029 INFO L413 NwaCegarLoop]: 5399 mSDtfsCounter, 1 mSDsluCounter, 5393 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 10792 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:10:41,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 10792 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:10:41,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4404 states. [2022-11-25 17:10:41,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4404 to 4403. [2022-11-25 17:10:41,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4403 states, 3151 states have (on average 1.3319581085369725) internal successors, (4197), 3217 states have internal predecessors, (4197), 1060 states have call successors, (1060), 188 states have call predecessors, (1060), 190 states have return successors, (1076), 1042 states have call predecessors, (1076), 1060 states have call successors, (1076) [2022-11-25 17:10:41,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4403 states to 4403 states and 6333 transitions. [2022-11-25 17:10:41,630 INFO L78 Accepts]: Start accepts. Automaton has 4403 states and 6333 transitions. Word has length 952 [2022-11-25 17:10:41,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:10:41,631 INFO L495 AbstractCegarLoop]: Abstraction has 4403 states and 6333 transitions. [2022-11-25 17:10:41,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 141.0) internal successors, (423), 3 states have internal predecessors, (423), 2 states have call successors, (128), 2 states have call predecessors, (128), 2 states have return successors, (124), 2 states have call predecessors, (124), 2 states have call successors, (124) [2022-11-25 17:10:41,631 INFO L276 IsEmpty]: Start isEmpty. Operand 4403 states and 6333 transitions. [2022-11-25 17:10:41,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 955 [2022-11-25 17:10:41,654 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:10:41,654 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 16, 16, 16, 13, 13, 12, 12, 10, 10, 9, 9, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:10:41,721 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2022-11-25 17:10:41,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:10:41,855 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:10:41,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:10:41,855 INFO L85 PathProgramCache]: Analyzing trace with hash -420834192, now seen corresponding path program 1 times [2022-11-25 17:10:41,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:10:41,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351295319] [2022-11-25 17:10:41,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:10:41,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:10:42,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:10:43,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:10:43,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351295319] [2022-11-25 17:10:43,463 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-25 17:10:43,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1927772345] [2022-11-25 17:10:43,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:10:43,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:10:43,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:10:43,467 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:10:43,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2022-11-25 17:10:56,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:10:56,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 11591 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 17:10:56,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:10:56,268 INFO L134 CoverageAnalysis]: Checked inductivity of 2063 backedges. 910 proven. 0 refuted. 0 times theorem prover too weak. 1153 trivial. 0 not checked. [2022-11-25 17:10:56,269 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:10:56,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1927772345] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:10:56,269 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:10:56,269 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:10:56,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799464703] [2022-11-25 17:10:56,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:10:56,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:10:56,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:10:56,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:10:56,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:10:56,272 INFO L87 Difference]: Start difference. First operand 4403 states and 6333 transitions. Second operand has 3 states, 3 states have (on average 141.66666666666666) internal successors, (425), 3 states have internal predecessors, (425), 2 states have call successors, (128), 2 states have call predecessors, (128), 2 states have return successors, (124), 2 states have call predecessors, (124), 2 states have call successors, (124) [2022-11-25 17:10:56,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:10:56,837 INFO L93 Difference]: Finished difference Result 8793 states and 12648 transitions. [2022-11-25 17:10:56,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:10:56,838 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 141.66666666666666) internal successors, (425), 3 states have internal predecessors, (425), 2 states have call successors, (128), 2 states have call predecessors, (128), 2 states have return successors, (124), 2 states have call predecessors, (124), 2 states have call successors, (124) Word has length 954 [2022-11-25 17:10:56,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:10:56,855 INFO L225 Difference]: With dead ends: 8793 [2022-11-25 17:10:56,855 INFO L226 Difference]: Without dead ends: 4407 [2022-11-25 17:10:56,873 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 953 GetRequests, 952 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:10:56,874 INFO L413 NwaCegarLoop]: 5397 mSDtfsCounter, 2 mSDsluCounter, 5394 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 10791 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:10:56,874 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 10791 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:10:56,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4407 states. [2022-11-25 17:10:57,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4407 to 4405. [2022-11-25 17:10:57,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4405 states, 3153 states have (on average 1.3317475420234697) internal successors, (4199), 3219 states have internal predecessors, (4199), 1060 states have call successors, (1060), 188 states have call predecessors, (1060), 190 states have return successors, (1076), 1042 states have call predecessors, (1076), 1060 states have call successors, (1076) [2022-11-25 17:10:57,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4405 states to 4405 states and 6335 transitions. [2022-11-25 17:10:57,532 INFO L78 Accepts]: Start accepts. Automaton has 4405 states and 6335 transitions. Word has length 954 [2022-11-25 17:10:57,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:10:57,533 INFO L495 AbstractCegarLoop]: Abstraction has 4405 states and 6335 transitions. [2022-11-25 17:10:57,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 141.66666666666666) internal successors, (425), 3 states have internal predecessors, (425), 2 states have call successors, (128), 2 states have call predecessors, (128), 2 states have return successors, (124), 2 states have call predecessors, (124), 2 states have call successors, (124) [2022-11-25 17:10:57,533 INFO L276 IsEmpty]: Start isEmpty. Operand 4405 states and 6335 transitions. [2022-11-25 17:10:57,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 934 [2022-11-25 17:10:57,554 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:10:57,555 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 15, 15, 15, 13, 13, 12, 12, 10, 10, 8, 8, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:10:57,624 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2022-11-25 17:10:57,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:10:57,755 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:10:57,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:10:57,756 INFO L85 PathProgramCache]: Analyzing trace with hash -561021605, now seen corresponding path program 1 times [2022-11-25 17:10:57,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:10:57,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765393356] [2022-11-25 17:10:57,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:10:57,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:10:58,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:10:59,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:10:59,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765393356] [2022-11-25 17:10:59,115 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-25 17:10:59,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1702738205] [2022-11-25 17:10:59,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:10:59,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:10:59,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:10:59,117 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:10:59,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2022-11-25 17:11:11,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:11:11,809 INFO L263 TraceCheckSpWp]: Trace formula consists of 11416 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 17:11:11,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:11:11,853 INFO L134 CoverageAnalysis]: Checked inductivity of 1973 backedges. 775 proven. 1 refuted. 0 times theorem prover too weak. 1197 trivial. 0 not checked. [2022-11-25 17:11:11,853 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:11:12,521 INFO L134 CoverageAnalysis]: Checked inductivity of 1973 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1969 trivial. 0 not checked. [2022-11-25 17:11:12,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1702738205] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:11:12,522 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 17:11:12,522 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-11-25 17:11:12,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032468273] [2022-11-25 17:11:12,522 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 17:11:12,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:11:12,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:11:12,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:11:12,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:11:12,527 INFO L87 Difference]: Start difference. First operand 4405 states and 6335 transitions. Second operand has 6 states, 6 states have (on average 96.0) internal successors, (576), 6 states have internal predecessors, (576), 2 states have call successors, (202), 2 states have call predecessors, (202), 2 states have return successors, (198), 2 states have call predecessors, (198), 2 states have call successors, (198) [2022-11-25 17:11:13,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:11:13,293 INFO L93 Difference]: Finished difference Result 8821 states and 12688 transitions. [2022-11-25 17:11:13,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:11:13,294 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 96.0) internal successors, (576), 6 states have internal predecessors, (576), 2 states have call successors, (202), 2 states have call predecessors, (202), 2 states have return successors, (198), 2 states have call predecessors, (198), 2 states have call successors, (198) Word has length 933 [2022-11-25 17:11:13,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:11:13,312 INFO L225 Difference]: With dead ends: 8821 [2022-11-25 17:11:13,312 INFO L226 Difference]: Without dead ends: 4433 [2022-11-25 17:11:13,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1864 GetRequests, 1860 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:11:13,328 INFO L413 NwaCegarLoop]: 5390 mSDtfsCounter, 23 mSDsluCounter, 16140 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 21530 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:11:13,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 21530 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:11:13,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4433 states. [2022-11-25 17:11:13,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4433 to 4429. [2022-11-25 17:11:13,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4429 states, 3177 states have (on average 1.329241422725842) internal successors, (4223), 3243 states have internal predecessors, (4223), 1060 states have call successors, (1060), 188 states have call predecessors, (1060), 190 states have return successors, (1076), 1042 states have call predecessors, (1076), 1060 states have call successors, (1076) [2022-11-25 17:11:13,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4429 states to 4429 states and 6359 transitions. [2022-11-25 17:11:13,962 INFO L78 Accepts]: Start accepts. Automaton has 4429 states and 6359 transitions. Word has length 933 [2022-11-25 17:11:13,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:11:13,963 INFO L495 AbstractCegarLoop]: Abstraction has 4429 states and 6359 transitions. [2022-11-25 17:11:13,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 96.0) internal successors, (576), 6 states have internal predecessors, (576), 2 states have call successors, (202), 2 states have call predecessors, (202), 2 states have return successors, (198), 2 states have call predecessors, (198), 2 states have call successors, (198) [2022-11-25 17:11:13,963 INFO L276 IsEmpty]: Start isEmpty. Operand 4429 states and 6359 transitions. [2022-11-25 17:11:13,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1044 [2022-11-25 17:11:13,992 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:11:13,993 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 18, 18, 18, 13, 13, 12, 12, 11, 11, 10, 10, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:11:14,070 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2022-11-25 17:11:14,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2022-11-25 17:11:14,194 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:11:14,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:11:14,194 INFO L85 PathProgramCache]: Analyzing trace with hash 1402130972, now seen corresponding path program 1 times [2022-11-25 17:11:14,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:11:14,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063280292] [2022-11-25 17:11:14,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:11:14,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:11:14,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:11:15,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:11:15,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063280292] [2022-11-25 17:11:15,195 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-25 17:11:15,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [690648684] [2022-11-25 17:11:15,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:11:15,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:11:15,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:11:15,197 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:11:15,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2022-11-25 17:11:28,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:11:28,449 INFO L263 TraceCheckSpWp]: Trace formula consists of 12000 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 17:11:28,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:11:28,635 INFO L134 CoverageAnalysis]: Checked inductivity of 2469 backedges. 982 proven. 16 refuted. 0 times theorem prover too weak. 1471 trivial. 0 not checked. [2022-11-25 17:11:28,635 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:11:29,574 INFO L134 CoverageAnalysis]: Checked inductivity of 2469 backedges. 7 proven. 20 refuted. 0 times theorem prover too weak. 2442 trivial. 0 not checked. [2022-11-25 17:11:29,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [690648684] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:11:29,574 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 17:11:29,575 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2022-11-25 17:11:29,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579843789] [2022-11-25 17:11:29,575 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 17:11:29,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 17:11:29,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:11:29,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 17:11:29,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:11:29,580 INFO L87 Difference]: Start difference. First operand 4429 states and 6359 transitions. Second operand has 8 states, 8 states have (on average 79.125) internal successors, (633), 8 states have internal predecessors, (633), 2 states have call successors, (228), 2 states have call predecessors, (228), 2 states have return successors, (220), 2 states have call predecessors, (220), 2 states have call successors, (220) [2022-11-25 17:11:30,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:11:30,687 INFO L93 Difference]: Finished difference Result 8867 states and 12733 transitions. [2022-11-25 17:11:30,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 17:11:30,688 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 79.125) internal successors, (633), 8 states have internal predecessors, (633), 2 states have call successors, (228), 2 states have call predecessors, (228), 2 states have return successors, (220), 2 states have call predecessors, (220), 2 states have call successors, (220) Word has length 1043 [2022-11-25 17:11:30,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:11:30,705 INFO L225 Difference]: With dead ends: 8867 [2022-11-25 17:11:30,705 INFO L226 Difference]: Without dead ends: 4455 [2022-11-25 17:11:30,719 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2084 GetRequests, 2074 SyntacticMatches, 4 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:11:30,719 INFO L413 NwaCegarLoop]: 5391 mSDtfsCounter, 34 mSDsluCounter, 21525 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 26916 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 17:11:30,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 26916 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 17:11:30,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4455 states. [2022-11-25 17:11:31,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4455 to 4452. [2022-11-25 17:11:31,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4452 states, 3200 states have (on average 1.328125) internal successors, (4250), 3266 states have internal predecessors, (4250), 1060 states have call successors, (1060), 188 states have call predecessors, (1060), 190 states have return successors, (1076), 1042 states have call predecessors, (1076), 1060 states have call successors, (1076) [2022-11-25 17:11:31,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4452 states to 4452 states and 6386 transitions. [2022-11-25 17:11:31,300 INFO L78 Accepts]: Start accepts. Automaton has 4452 states and 6386 transitions. Word has length 1043 [2022-11-25 17:11:31,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:11:31,300 INFO L495 AbstractCegarLoop]: Abstraction has 4452 states and 6386 transitions. [2022-11-25 17:11:31,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 79.125) internal successors, (633), 8 states have internal predecessors, (633), 2 states have call successors, (228), 2 states have call predecessors, (228), 2 states have return successors, (220), 2 states have call predecessors, (220), 2 states have call successors, (220) [2022-11-25 17:11:31,301 INFO L276 IsEmpty]: Start isEmpty. Operand 4452 states and 6386 transitions. [2022-11-25 17:11:31,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1023 [2022-11-25 17:11:31,323 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:11:31,324 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 17, 17, 17, 13, 13, 12, 12, 10, 10, 10, 10, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:11:31,399 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2022-11-25 17:11:31,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2022-11-25 17:11:31,525 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:11:31,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:11:31,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1778623083, now seen corresponding path program 1 times [2022-11-25 17:11:31,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:11:31,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808649540] [2022-11-25 17:11:31,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:11:31,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:11:32,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:11:32,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:11:32,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808649540] [2022-11-25 17:11:32,515 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-25 17:11:32,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [180249656] [2022-11-25 17:11:32,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:11:32,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:11:32,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:11:32,516 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:11:32,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2022-11-25 17:11:45,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:11:46,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 11795 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 17:11:46,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:11:46,122 INFO L134 CoverageAnalysis]: Checked inductivity of 2383 backedges. 994 proven. 1 refuted. 0 times theorem prover too weak. 1388 trivial. 0 not checked. [2022-11-25 17:11:46,122 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:11:47,155 INFO L134 CoverageAnalysis]: Checked inductivity of 2383 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 2375 trivial. 0 not checked. [2022-11-25 17:11:47,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [180249656] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:11:47,156 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 17:11:47,156 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-11-25 17:11:47,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322136084] [2022-11-25 17:11:47,156 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 17:11:47,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:11:47,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:11:47,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:11:47,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:11:47,159 INFO L87 Difference]: Start difference. First operand 4452 states and 6386 transitions. Second operand has 6 states, 6 states have (on average 102.0) internal successors, (612), 6 states have internal predecessors, (612), 2 states have call successors, (214), 2 states have call predecessors, (214), 2 states have return successors, (206), 2 states have call predecessors, (206), 2 states have call successors, (206) [2022-11-25 17:11:48,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:11:48,412 INFO L93 Difference]: Finished difference Result 8893 states and 12757 transitions. [2022-11-25 17:11:48,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:11:48,413 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 102.0) internal successors, (612), 6 states have internal predecessors, (612), 2 states have call successors, (214), 2 states have call predecessors, (214), 2 states have return successors, (206), 2 states have call predecessors, (206), 2 states have call successors, (206) Word has length 1022 [2022-11-25 17:11:48,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:11:48,433 INFO L225 Difference]: With dead ends: 8893 [2022-11-25 17:11:48,433 INFO L226 Difference]: Without dead ends: 4458 [2022-11-25 17:11:48,447 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2042 GetRequests, 2038 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:11:48,448 INFO L413 NwaCegarLoop]: 5399 mSDtfsCounter, 2 mSDsluCounter, 5393 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 10792 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-25 17:11:48,448 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 10792 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-25 17:11:48,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4458 states. [2022-11-25 17:11:49,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4458 to 4458. [2022-11-25 17:11:49,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4458 states, 3206 states have (on average 1.3275109170305677) internal successors, (4256), 3272 states have internal predecessors, (4256), 1060 states have call successors, (1060), 188 states have call predecessors, (1060), 190 states have return successors, (1076), 1042 states have call predecessors, (1076), 1060 states have call successors, (1076) [2022-11-25 17:11:49,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4458 states to 4458 states and 6392 transitions. [2022-11-25 17:11:49,076 INFO L78 Accepts]: Start accepts. Automaton has 4458 states and 6392 transitions. Word has length 1022 [2022-11-25 17:11:49,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:11:49,077 INFO L495 AbstractCegarLoop]: Abstraction has 4458 states and 6392 transitions. [2022-11-25 17:11:49,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 102.0) internal successors, (612), 6 states have internal predecessors, (612), 2 states have call successors, (214), 2 states have call predecessors, (214), 2 states have return successors, (206), 2 states have call predecessors, (206), 2 states have call successors, (206) [2022-11-25 17:11:49,077 INFO L276 IsEmpty]: Start isEmpty. Operand 4458 states and 6392 transitions. [2022-11-25 17:11:49,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1019 [2022-11-25 17:11:49,106 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:11:49,107 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 15, 15, 15, 13, 13, 12, 12, 10, 10, 8, 8, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:11:49,183 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2022-11-25 17:11:49,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:11:49,308 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:11:49,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:11:49,308 INFO L85 PathProgramCache]: Analyzing trace with hash 880165867, now seen corresponding path program 1 times [2022-11-25 17:11:49,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:11:49,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264446469] [2022-11-25 17:11:49,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:11:49,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:11:50,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:11:50,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:11:50,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264446469] [2022-11-25 17:11:50,312 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-25 17:11:50,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [883405533] [2022-11-25 17:11:50,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:11:50,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:11:50,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:11:50,314 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:11:50,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2022-11-25 17:12:04,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:12:04,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 12347 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 17:12:04,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:12:04,643 INFO L134 CoverageAnalysis]: Checked inductivity of 2361 backedges. 994 proven. 0 refuted. 0 times theorem prover too weak. 1367 trivial. 0 not checked. [2022-11-25 17:12:04,643 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:12:04,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [883405533] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:12:04,643 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:12:04,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:12:04,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940485856] [2022-11-25 17:12:04,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:12:04,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:12:04,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:12:04,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:12:04,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:12:04,647 INFO L87 Difference]: Start difference. First operand 4458 states and 6392 transitions. Second operand has 3 states, 3 states have (on average 152.66666666666666) internal successors, (458), 3 states have internal predecessors, (458), 2 states have call successors, (135), 2 states have call predecessors, (135), 2 states have return successors, (127), 2 states have call predecessors, (127), 2 states have call successors, (127) [2022-11-25 17:12:05,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:12:05,622 INFO L93 Difference]: Finished difference Result 9682 states and 13912 transitions. [2022-11-25 17:12:05,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:12:05,623 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 152.66666666666666) internal successors, (458), 3 states have internal predecessors, (458), 2 states have call successors, (135), 2 states have call predecessors, (135), 2 states have return successors, (127), 2 states have call predecessors, (127), 2 states have call successors, (127) Word has length 1018 [2022-11-25 17:12:05,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:12:05,654 INFO L225 Difference]: With dead ends: 9682 [2022-11-25 17:12:05,654 INFO L226 Difference]: Without dead ends: 5241 [2022-11-25 17:12:05,674 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1017 GetRequests, 1016 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:12:05,674 INFO L413 NwaCegarLoop]: 6238 mSDtfsCounter, 720 mSDsluCounter, 5500 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 865 SdHoareTripleChecker+Valid, 11738 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:12:05,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [865 Valid, 11738 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:12:05,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5241 states. [2022-11-25 17:12:06,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5241 to 4462. [2022-11-25 17:12:06,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4462 states, 3210 states have (on average 1.3277258566978194) internal successors, (4262), 3276 states have internal predecessors, (4262), 1060 states have call successors, (1060), 188 states have call predecessors, (1060), 190 states have return successors, (1076), 1042 states have call predecessors, (1076), 1060 states have call successors, (1076) [2022-11-25 17:12:06,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4462 states to 4462 states and 6398 transitions. [2022-11-25 17:12:06,328 INFO L78 Accepts]: Start accepts. Automaton has 4462 states and 6398 transitions. Word has length 1018 [2022-11-25 17:12:06,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:12:06,329 INFO L495 AbstractCegarLoop]: Abstraction has 4462 states and 6398 transitions. [2022-11-25 17:12:06,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 152.66666666666666) internal successors, (458), 3 states have internal predecessors, (458), 2 states have call successors, (135), 2 states have call predecessors, (135), 2 states have return successors, (127), 2 states have call predecessors, (127), 2 states have call successors, (127) [2022-11-25 17:12:06,329 INFO L276 IsEmpty]: Start isEmpty. Operand 4462 states and 6398 transitions. [2022-11-25 17:12:06,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 995 [2022-11-25 17:12:06,356 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:12:06,356 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 14, 14, 14, 13, 13, 12, 12, 10, 10, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:12:06,442 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2022-11-25 17:12:06,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2022-11-25 17:12:06,557 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:12:06,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:12:06,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1181750488, now seen corresponding path program 1 times [2022-11-25 17:12:06,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:12:06,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862636639] [2022-11-25 17:12:06,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:12:06,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:12:07,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:12:07,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:12:07,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862636639] [2022-11-25 17:12:07,846 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-25 17:12:07,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1980760172] [2022-11-25 17:12:07,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:12:07,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:12:07,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:12:07,848 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:12:07,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2022-11-25 17:12:22,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:12:22,872 INFO L263 TraceCheckSpWp]: Trace formula consists of 12134 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 17:12:22,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:12:22,955 INFO L134 CoverageAnalysis]: Checked inductivity of 2277 backedges. 883 proven. 16 refuted. 0 times theorem prover too weak. 1378 trivial. 0 not checked. [2022-11-25 17:12:22,955 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:12:23,963 INFO L134 CoverageAnalysis]: Checked inductivity of 2277 backedges. 3 proven. 16 refuted. 0 times theorem prover too weak. 2258 trivial. 0 not checked. [2022-11-25 17:12:23,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1980760172] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:12:23,964 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 17:12:23,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2022-11-25 17:12:23,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886243106] [2022-11-25 17:12:23,965 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 17:12:23,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 17:12:23,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:12:23,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 17:12:23,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2022-11-25 17:12:23,983 INFO L87 Difference]: Start difference. First operand 4462 states and 6398 transitions. Second operand has 10 states, 10 states have (on average 61.3) internal successors, (613), 10 states have internal predecessors, (613), 2 states have call successors, (205), 2 states have call predecessors, (205), 2 states have return successors, (197), 2 states have call predecessors, (197), 2 states have call successors, (197) [2022-11-25 17:12:26,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:12:26,347 INFO L93 Difference]: Finished difference Result 8915 states and 12784 transitions. [2022-11-25 17:12:26,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 17:12:26,348 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 61.3) internal successors, (613), 10 states have internal predecessors, (613), 2 states have call successors, (205), 2 states have call predecessors, (205), 2 states have return successors, (197), 2 states have call predecessors, (197), 2 states have call successors, (197) Word has length 994 [2022-11-25 17:12:26,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:12:26,372 INFO L225 Difference]: With dead ends: 8915 [2022-11-25 17:12:26,373 INFO L226 Difference]: Without dead ends: 4470 [2022-11-25 17:12:26,396 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1986 GetRequests, 1976 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2022-11-25 17:12:26,396 INFO L413 NwaCegarLoop]: 5399 mSDtfsCounter, 1 mSDsluCounter, 21572 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 26971 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:12:26,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 26971 Invalid, 38 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-25 17:12:26,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4470 states. [2022-11-25 17:12:29,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4470 to 4470. [2022-11-25 17:12:29,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4470 states, 3218 states have (on average 1.326911124922312) internal successors, (4270), 3284 states have internal predecessors, (4270), 1060 states have call successors, (1060), 188 states have call predecessors, (1060), 190 states have return successors, (1076), 1042 states have call predecessors, (1076), 1060 states have call successors, (1076) [2022-11-25 17:12:29,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4470 states to 4470 states and 6406 transitions. [2022-11-25 17:12:29,378 INFO L78 Accepts]: Start accepts. Automaton has 4470 states and 6406 transitions. Word has length 994 [2022-11-25 17:12:29,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:12:29,379 INFO L495 AbstractCegarLoop]: Abstraction has 4470 states and 6406 transitions. [2022-11-25 17:12:29,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 61.3) internal successors, (613), 10 states have internal predecessors, (613), 2 states have call successors, (205), 2 states have call predecessors, (205), 2 states have return successors, (197), 2 states have call predecessors, (197), 2 states have call successors, (197) [2022-11-25 17:12:29,380 INFO L276 IsEmpty]: Start isEmpty. Operand 4470 states and 6406 transitions. [2022-11-25 17:12:29,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1030 [2022-11-25 17:12:29,519 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:12:29,519 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 15, 15, 15, 13, 13, 12, 12, 10, 10, 8, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:12:29,623 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2022-11-25 17:12:29,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2022-11-25 17:12:29,720 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:12:29,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:12:29,721 INFO L85 PathProgramCache]: Analyzing trace with hash 1502406108, now seen corresponding path program 1 times [2022-11-25 17:12:29,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:12:29,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707396252] [2022-11-25 17:12:29,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:12:29,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:12:30,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:12:30,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:12:30,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707396252] [2022-11-25 17:12:30,982 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-25 17:12:30,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [667643776] [2022-11-25 17:12:30,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:12:30,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:12:30,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:12:30,984 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:12:30,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a6e1f0b-b279-4931-9e63-e41de9a261c6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process