./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--dec--tulip--xircom_cb.ko-entry_point.cil.out.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_7c3351dc-0692-40f0-a4f9-dd4c06c00af1/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3351dc-0692-40f0-a4f9-dd4c06c00af1/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_7c3351dc-0692-40f0-a4f9-dd4c06c00af1/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3351dc-0692-40f0-a4f9-dd4c06c00af1/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--dec--tulip--xircom_cb.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3351dc-0692-40f0-a4f9-dd4c06c00af1/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_7c3351dc-0692-40f0-a4f9-dd4c06c00af1/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 a18a7daf593dd77ad555545ec10f677585469ecf569b445600fb5f502940bb67 --- 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 15:42:42,075 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 15:42:42,078 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 15:42:42,100 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 15:42:42,101 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 15:42:42,103 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 15:42:42,104 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 15:42:42,107 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 15:42:42,110 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 15:42:42,111 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 15:42:42,113 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 15:42:42,114 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 15:42:42,115 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 15:42:42,117 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 15:42:42,118 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 15:42:42,120 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 15:42:42,121 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 15:42:42,123 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 15:42:42,125 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 15:42:42,132 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 15:42:42,138 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 15:42:42,139 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 15:42:42,141 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 15:42:42,142 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 15:42:42,147 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 15:42:42,147 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 15:42:42,148 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 15:42:42,149 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 15:42:42,149 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 15:42:42,151 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 15:42:42,151 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 15:42:42,152 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 15:42:42,153 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 15:42:42,154 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 15:42:42,156 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 15:42:42,156 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 15:42:42,157 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 15:42:42,157 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 15:42:42,158 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 15:42:42,159 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 15:42:42,160 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 15:42:42,161 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3351dc-0692-40f0-a4f9-dd4c06c00af1/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-25 15:42:42,188 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 15:42:42,188 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 15:42:42,189 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 15:42:42,189 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 15:42:42,190 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 15:42:42,190 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 15:42:42,191 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 15:42:42,191 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 15:42:42,191 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 15:42:42,192 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 15:42:42,192 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 15:42:42,192 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 15:42:42,192 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 15:42:42,193 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 15:42:42,193 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 15:42:42,193 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 15:42:42,194 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 15:42:42,194 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 15:42:42,194 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 15:42:42,194 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 15:42:42,195 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 15:42:42,195 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:42:42,195 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 15:42:42,195 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 15:42:42,196 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 15:42:42,196 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 15:42:42,196 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 15:42:42,196 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 15:42:42,197 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 15:42:42,197 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 15:42:42,197 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 15:42:42,197 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_7c3351dc-0692-40f0-a4f9-dd4c06c00af1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3351dc-0692-40f0-a4f9-dd4c06c00af1/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a18a7daf593dd77ad555545ec10f677585469ecf569b445600fb5f502940bb67 [2022-11-25 15:42:42,493 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 15:42:42,522 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 15:42:42,525 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 15:42:42,526 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 15:42:42,527 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 15:42:42,528 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3351dc-0692-40f0-a4f9-dd4c06c00af1/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--dec--tulip--xircom_cb.ko-entry_point.cil.out.i [2022-11-25 15:42:45,944 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 15:42:46,573 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 15:42:46,578 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3351dc-0692-40f0-a4f9-dd4c06c00af1/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--dec--tulip--xircom_cb.ko-entry_point.cil.out.i [2022-11-25 15:42:46,636 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3351dc-0692-40f0-a4f9-dd4c06c00af1/bin/uautomizer-ZsLfNo2U6R/data/5b58c65f4/b4eca8e668c4428eb16a7034ed2f319e/FLAG967da1767 [2022-11-25 15:42:46,661 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3351dc-0692-40f0-a4f9-dd4c06c00af1/bin/uautomizer-ZsLfNo2U6R/data/5b58c65f4/b4eca8e668c4428eb16a7034ed2f319e [2022-11-25 15:42:46,665 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 15:42:46,667 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 15:42:46,669 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 15:42:46,669 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 15:42:46,675 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 15:42:46,676 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:42:46" (1/1) ... [2022-11-25 15:42:46,678 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57fea0fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:42:46, skipping insertion in model container [2022-11-25 15:42:46,678 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:42:46" (1/1) ... [2022-11-25 15:42:46,690 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 15:42:46,827 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 15:42:47,569 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-11-25 15:42:47,575 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-11-25 15:42:47,588 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-11-25 15:42:47,696 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-11-25 15:42:47,713 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 15:42:47,715 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-11-25 15:42:47,848 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_7c3351dc-0692-40f0-a4f9-dd4c06c00af1/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--dec--tulip--xircom_cb.ko-entry_point.cil.out.i[161211,161224] [2022-11-25 15:42:47,905 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-11-25 15:42:47,950 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_word [2022-11-25 15:42:47,959 WARN L623 FunctionHandler]: Unknown extern function pci_bus_write_config_word [2022-11-25 15:42:47,966 WARN L623 FunctionHandler]: Unknown extern function pci_bus_write_config_dword [2022-11-25 15:42:48,057 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-11-25 15:42:48,075 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 15:42:48,078 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 15:42:48,095 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_irq [2022-11-25 15:42:48,251 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-11-25 15:42:48,252 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-11-25 15:42:48,256 WARN L623 FunctionHandler]: Unknown extern function pci_request_regions [2022-11-25 15:42:48,257 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 15:42:48,258 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-11-25 15:42:48,272 WARN L623 FunctionHandler]: Unknown extern function pci_iomap [2022-11-25 15:42:48,273 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 15:42:48,274 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 15:42:48,275 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 15:42:48,277 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 15:42:48,278 WARN L623 FunctionHandler]: Unknown extern function pci_iounmap [2022-11-25 15:42:48,281 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-11-25 15:42:48,281 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-25 15:42:48,284 WARN L623 FunctionHandler]: Unknown extern function pci_iounmap [2022-11-25 15:42:48,286 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-11-25 15:42:48,287 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-25 15:42:48,289 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 15:42:48,293 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 15:42:48,294 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 15:42:48,296 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-11-25 15:42:48,296 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-25 15:42:48,297 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 15:42:48,305 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 15:42:48,319 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 15:42:48,326 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 15:42:48,328 WARN L623 FunctionHandler]: Unknown extern function disable_irq [2022-11-25 15:42:48,329 WARN L623 FunctionHandler]: Unknown extern function enable_irq [2022-11-25 15:42:48,330 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 15:42:48,331 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 15:42:48,332 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 15:42:48,332 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 15:42:48,332 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 15:42:48,333 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 15:42:48,333 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 15:42:48,335 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 15:42:48,336 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 15:42:48,351 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 15:42:48,360 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 15:42:48,362 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 15:42:48,364 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 15:42:48,365 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 15:42:48,366 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 15:42:48,371 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 15:42:48,376 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 15:42:48,382 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 15:42:48,385 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 15:42:48,385 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 15:42:48,386 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 15:42:48,387 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 15:42:48,388 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 15:42:48,390 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 15:42:48,390 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 15:42:48,391 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 15:42:48,392 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 15:42:48,393 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 15:42:48,393 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 15:42:48,394 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 15:42:48,399 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 15:42:48,401 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 15:42:48,401 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 15:42:48,402 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 15:42:48,403 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 15:42:48,404 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 15:42:48,405 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 15:42:48,407 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 15:42:48,408 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 15:42:48,408 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 15:42:48,409 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 15:42:48,414 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 15:42:48,415 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 15:42:48,415 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 15:42:48,421 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 15:42:48,422 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 15:42:48,422 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 15:42:48,423 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 15:42:48,427 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 15:42:48,434 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 15:42:48,439 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 15:42:48,440 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 15:42:48,442 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-11-25 15:42:48,443 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 15:42:48,444 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 15:42:48,444 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 15:42:48,444 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 15:42:48,445 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 15:42:48,445 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 15:42:48,446 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 15:42:48,447 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 15:42:48,447 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 15:42:48,449 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 15:42:48,450 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 15:42:48,451 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 15:42:48,458 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 15:42:48,461 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 15:42:48,462 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 15:42:48,462 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 15:42:48,462 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 15:42:48,463 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 15:42:48,463 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 15:42:48,464 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 15:42:48,465 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 15:42:48,467 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 15:42:48,472 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-25 15:42:48,472 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-11-25 15:42:48,485 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-11-25 15:42:48,492 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-11-25 15:42:48,535 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-11-25 15:42:48,538 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-11-25 15:42:48,538 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-11-25 15:42:48,540 WARN L623 FunctionHandler]: Unknown extern function eth_change_mtu [2022-11-25 15:42:48,540 WARN L623 FunctionHandler]: Unknown extern function eth_change_mtu [2022-11-25 15:42:48,543 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-11-25 15:42:48,545 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-11-25 15:42:48,545 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-11-25 15:42:48,546 WARN L623 FunctionHandler]: Unknown extern function ldv_ndo_init_2 [2022-11-25 15:42:48,547 WARN L623 FunctionHandler]: Unknown extern function ldv_ndo_uninit_2 [2022-11-25 15:42:48,549 WARN L623 FunctionHandler]: Unknown extern function ldv_skb_free [2022-11-25 15:42:48,550 WARN L623 FunctionHandler]: Unknown extern function ldv_skb_free [2022-11-25 15:42:48,550 WARN L623 FunctionHandler]: Unknown extern function ldv_skb_free [2022-11-25 15:42:48,551 WARN L623 FunctionHandler]: Unknown extern function ldv_skb_free [2022-11-25 15:42:48,551 WARN L623 FunctionHandler]: Unknown extern function ldv_skb_free [2022-11-25 15:42:48,551 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-11-25 15:42:48,552 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-25 15:42:48,553 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-11-25 15:42:48,553 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-25 15:42:48,555 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-11-25 15:42:48,556 WARN L623 FunctionHandler]: Unknown extern function ldv_skb_alloc [2022-11-25 15:42:48,556 WARN L623 FunctionHandler]: Unknown extern function ldv_skb_free_int [2022-11-25 15:42:48,603 WARN L623 FunctionHandler]: Unknown extern function ldv_skb_alloc [2022-11-25 15:42:48,636 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:42:48,670 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 15:42:48,790 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-11-25 15:42:48,790 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-11-25 15:42:48,791 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-11-25 15:42:48,807 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-11-25 15:42:48,808 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 15:42:48,810 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-11-25 15:42:48,824 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_7c3351dc-0692-40f0-a4f9-dd4c06c00af1/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--dec--tulip--xircom_cb.ko-entry_point.cil.out.i[161211,161224] [2022-11-25 15:42:48,829 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-11-25 15:42:48,831 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_word [2022-11-25 15:42:48,834 WARN L623 FunctionHandler]: Unknown extern function pci_bus_write_config_word [2022-11-25 15:42:48,839 WARN L623 FunctionHandler]: Unknown extern function pci_bus_write_config_dword [2022-11-25 15:42:48,845 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-11-25 15:42:48,849 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 15:42:48,853 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 15:42:48,862 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_irq [2022-11-25 15:42:48,867 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-11-25 15:42:48,868 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-11-25 15:42:48,868 WARN L623 FunctionHandler]: Unknown extern function pci_request_regions [2022-11-25 15:42:48,869 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 15:42:48,869 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-11-25 15:42:48,872 WARN L623 FunctionHandler]: Unknown extern function pci_iomap [2022-11-25 15:42:48,872 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 15:42:48,873 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 15:42:48,874 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 15:42:48,874 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 15:42:48,875 WARN L623 FunctionHandler]: Unknown extern function pci_iounmap [2022-11-25 15:42:48,875 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-11-25 15:42:48,876 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-25 15:42:48,877 WARN L623 FunctionHandler]: Unknown extern function pci_iounmap [2022-11-25 15:42:48,878 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-11-25 15:42:48,878 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-25 15:42:48,879 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 15:42:48,881 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 15:42:48,881 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 15:42:48,882 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-11-25 15:42:48,882 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-25 15:42:48,882 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 15:42:48,884 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 15:42:48,888 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 15:42:48,889 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 15:42:48,891 WARN L623 FunctionHandler]: Unknown extern function disable_irq [2022-11-25 15:42:48,891 WARN L623 FunctionHandler]: Unknown extern function enable_irq [2022-11-25 15:42:48,892 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 15:42:48,892 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 15:42:48,892 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 15:42:48,893 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 15:42:48,893 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 15:42:48,893 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 15:42:48,893 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 15:42:48,894 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 15:42:48,895 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 15:42:48,898 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 15:42:48,900 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 15:42:48,901 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 15:42:48,901 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 15:42:48,902 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 15:42:48,903 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 15:42:48,903 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 15:42:48,904 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 15:42:48,905 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 15:42:48,906 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 15:42:48,906 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 15:42:48,906 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 15:42:48,907 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 15:42:48,907 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 15:42:48,908 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 15:42:48,908 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 15:42:48,909 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 15:42:48,909 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 15:42:48,910 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 15:42:48,910 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 15:42:48,911 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 15:42:48,912 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 15:42:48,913 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 15:42:48,913 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 15:42:48,914 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 15:42:48,914 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 15:42:48,915 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 15:42:48,915 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 15:42:48,916 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 15:42:48,917 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 15:42:48,917 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 15:42:48,918 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 15:42:48,918 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 15:42:48,919 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 15:42:48,920 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 15:42:48,920 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 15:42:48,921 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 15:42:48,975 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 15:42:48,976 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 15:42:48,976 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 15:42:48,977 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 15:42:48,978 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 15:42:48,978 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 15:42:48,979 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-11-25 15:42:48,980 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 15:42:48,980 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 15:42:48,981 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 15:42:48,981 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 15:42:48,981 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 15:42:48,981 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 15:42:48,982 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 15:42:48,982 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 15:42:48,982 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 15:42:48,982 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 15:42:48,983 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 15:42:48,983 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 15:42:48,985 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 15:42:48,986 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 15:42:48,986 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 15:42:48,987 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 15:42:48,987 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 15:42:48,987 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 15:42:48,987 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 15:42:48,987 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 15:42:48,988 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 15:42:48,989 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 15:42:48,991 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-25 15:42:48,991 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-11-25 15:42:48,994 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-11-25 15:42:48,995 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-11-25 15:42:49,000 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-11-25 15:42:49,001 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-11-25 15:42:49,001 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-11-25 15:42:49,002 WARN L623 FunctionHandler]: Unknown extern function eth_change_mtu [2022-11-25 15:42:49,002 WARN L623 FunctionHandler]: Unknown extern function eth_change_mtu [2022-11-25 15:42:49,003 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-11-25 15:42:49,003 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-11-25 15:42:49,004 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-11-25 15:42:49,004 WARN L623 FunctionHandler]: Unknown extern function ldv_ndo_init_2 [2022-11-25 15:42:49,005 WARN L623 FunctionHandler]: Unknown extern function ldv_ndo_uninit_2 [2022-11-25 15:42:49,006 WARN L623 FunctionHandler]: Unknown extern function ldv_skb_free [2022-11-25 15:42:49,006 WARN L623 FunctionHandler]: Unknown extern function ldv_skb_free [2022-11-25 15:42:49,006 WARN L623 FunctionHandler]: Unknown extern function ldv_skb_free [2022-11-25 15:42:49,007 WARN L623 FunctionHandler]: Unknown extern function ldv_skb_free [2022-11-25 15:42:49,007 WARN L623 FunctionHandler]: Unknown extern function ldv_skb_free [2022-11-25 15:42:49,007 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-11-25 15:42:49,008 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-25 15:42:49,008 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-11-25 15:42:49,008 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-25 15:42:49,010 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-11-25 15:42:49,010 WARN L623 FunctionHandler]: Unknown extern function ldv_skb_alloc [2022-11-25 15:42:49,011 WARN L623 FunctionHandler]: Unknown extern function ldv_skb_free_int [2022-11-25 15:42:49,015 WARN L623 FunctionHandler]: Unknown extern function ldv_skb_alloc [2022-11-25 15:42:49,022 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:42:49,085 INFO L208 MainTranslator]: Completed translation [2022-11-25 15:42:49,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:42:49 WrapperNode [2022-11-25 15:42:49,086 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 15:42:49,087 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 15:42:49,087 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 15:42:49,087 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 15:42:49,094 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:42:49" (1/1) ... [2022-11-25 15:42:49,141 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:42:49" (1/1) ... [2022-11-25 15:42:49,229 INFO L138 Inliner]: procedures = 199, calls = 723, calls flagged for inlining = 106, calls inlined = 103, statements flattened = 2371 [2022-11-25 15:42:49,230 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 15:42:49,238 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 15:42:49,238 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 15:42:49,238 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 15:42:49,255 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:42:49" (1/1) ... [2022-11-25 15:42:49,255 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:42:49" (1/1) ... [2022-11-25 15:42:49,273 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:42:49" (1/1) ... [2022-11-25 15:42:49,274 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:42:49" (1/1) ... [2022-11-25 15:42:49,339 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:42:49" (1/1) ... [2022-11-25 15:42:49,351 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:42:49" (1/1) ... [2022-11-25 15:42:49,363 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:42:49" (1/1) ... [2022-11-25 15:42:49,373 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:42:49" (1/1) ... [2022-11-25 15:42:49,403 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 15:42:49,404 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 15:42:49,404 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 15:42:49,404 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 15:42:49,405 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:42:49" (1/1) ... [2022-11-25 15:42:49,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:42:49,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3351dc-0692-40f0-a4f9-dd4c06c00af1/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:42:49,441 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3351dc-0692-40f0-a4f9-dd4c06c00af1/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 15:42:49,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3351dc-0692-40f0-a4f9-dd4c06c00af1/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 15:42:49,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-25 15:42:49,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-25 15:42:49,494 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-25 15:42:49,494 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-25 15:42:49,494 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-25 15:42:49,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-25 15:42:49,494 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-25 15:42:49,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-25 15:42:49,495 INFO L130 BoogieDeclarations]: Found specification of procedure setup_descriptors [2022-11-25 15:42:49,495 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_descriptors [2022-11-25 15:42:49,495 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2022-11-25 15:42:49,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2022-11-25 15:42:49,495 INFO L130 BoogieDeclarations]: Found specification of procedure disable_all_interrupts [2022-11-25 15:42:49,495 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_all_interrupts [2022-11-25 15:42:49,496 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-25 15:42:49,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-25 15:42:49,496 INFO L130 BoogieDeclarations]: Found specification of procedure xircom_interrupt [2022-11-25 15:42:49,496 INFO L138 BoogieDeclarations]: Found implementation of procedure xircom_interrupt [2022-11-25 15:42:49,496 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-25 15:42:49,496 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-25 15:42:49,497 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-25 15:42:49,497 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-25 15:42:49,497 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-11-25 15:42:49,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-11-25 15:42:49,497 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-25 15:42:49,497 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-25 15:42:49,498 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-25 15:42:49,498 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-25 15:42:49,498 INFO L130 BoogieDeclarations]: Found specification of procedure investigate_write_descriptor [2022-11-25 15:42:49,498 INFO L138 BoogieDeclarations]: Found implementation of procedure investigate_write_descriptor [2022-11-25 15:42:49,498 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-11-25 15:42:49,498 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-11-25 15:42:49,498 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 15:42:49,499 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2022-11-25 15:42:49,499 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2022-11-25 15:42:49,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 15:42:49,499 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2022-11-25 15:42:49,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2022-11-25 15:42:49,499 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-11-25 15:42:49,500 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-11-25 15:42:49,500 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-25 15:42:49,500 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-25 15:42:49,500 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-25 15:42:49,500 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-25 15:42:49,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 15:42:49,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-25 15:42:49,501 INFO L130 BoogieDeclarations]: Found specification of procedure investigate_read_descriptor [2022-11-25 15:42:49,501 INFO L138 BoogieDeclarations]: Found implementation of procedure investigate_read_descriptor [2022-11-25 15:42:49,501 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-25 15:42:49,501 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-25 15:42:49,501 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2022-11-25 15:42:49,501 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2022-11-25 15:42:49,502 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-25 15:42:49,502 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-25 15:42:49,502 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-25 15:42:49,502 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-25 15:42:49,502 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-25 15:42:49,502 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-25 15:42:49,503 INFO L130 BoogieDeclarations]: Found specification of procedure trigger_transmit [2022-11-25 15:42:49,503 INFO L138 BoogieDeclarations]: Found implementation of procedure trigger_transmit [2022-11-25 15:42:49,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-25 15:42:49,503 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-25 15:42:49,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-25 15:42:49,503 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2022-11-25 15:42:49,504 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2022-11-25 15:42:49,504 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-25 15:42:49,504 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-25 15:42:49,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-25 15:42:49,504 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-25 15:42:49,504 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-25 15:42:49,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 15:42:49,505 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-25 15:42:49,505 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-25 15:42:49,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-25 15:42:49,505 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-25 15:42:49,505 INFO L130 BoogieDeclarations]: Found specification of procedure xircom_poll_controller [2022-11-25 15:42:49,505 INFO L138 BoogieDeclarations]: Found implementation of procedure xircom_poll_controller [2022-11-25 15:42:49,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 15:42:49,506 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-25 15:42:49,506 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-25 15:42:49,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-25 15:42:49,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-25 15:42:49,506 INFO L130 BoogieDeclarations]: Found specification of procedure receive_active [2022-11-25 15:42:49,507 INFO L138 BoogieDeclarations]: Found implementation of procedure receive_active [2022-11-25 15:42:49,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 15:42:49,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 15:42:49,507 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-25 15:42:49,507 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-25 15:42:49,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 15:42:49,507 INFO L130 BoogieDeclarations]: Found specification of procedure transmit_active [2022-11-25 15:42:49,508 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit_active [2022-11-25 15:42:49,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-11-25 15:42:49,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-11-25 15:42:49,508 INFO L130 BoogieDeclarations]: Found specification of procedure trigger_receive [2022-11-25 15:42:49,512 INFO L138 BoogieDeclarations]: Found implementation of procedure trigger_receive [2022-11-25 15:42:49,513 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-25 15:42:49,513 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-25 15:42:49,516 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-25 15:42:49,517 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-25 15:42:49,517 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2022-11-25 15:42:49,517 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2022-11-25 15:42:49,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 15:42:49,518 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 15:42:49,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 15:42:50,155 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 15:42:50,158 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 15:42:50,358 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-25 15:42:52,593 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 15:42:52,618 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 15:42:52,618 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-25 15:42:52,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:42:52 BoogieIcfgContainer [2022-11-25 15:42:52,623 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 15:42:52,627 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 15:42:52,627 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 15:42:52,631 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 15:42:52,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 03:42:46" (1/3) ... [2022-11-25 15:42:52,634 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40e8cda4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:42:52, skipping insertion in model container [2022-11-25 15:42:52,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:42:49" (2/3) ... [2022-11-25 15:42:52,636 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40e8cda4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:42:52, skipping insertion in model container [2022-11-25 15:42:52,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:42:52" (3/3) ... [2022-11-25 15:42:52,638 INFO L112 eAbstractionObserver]: Analyzing ICFG 205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--dec--tulip--xircom_cb.ko-entry_point.cil.out.i [2022-11-25 15:42:52,660 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 15:42:52,660 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 15:42:52,771 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 15:42:52,783 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;@7bf25909, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 15:42:52,783 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 15:42:52,797 INFO L276 IsEmpty]: Start isEmpty. Operand has 848 states, 604 states have (on average 1.3394039735099337) internal successors, (809), 619 states have internal predecessors, (809), 199 states have call successors, (199), 44 states have call predecessors, (199), 43 states have return successors, (193), 192 states have call predecessors, (193), 193 states have call successors, (193) [2022-11-25 15:42:52,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-25 15:42:52,815 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:42:52,816 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-25 15:42:52,816 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:42:52,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:42:52,821 INFO L85 PathProgramCache]: Analyzing trace with hash 75505031, now seen corresponding path program 1 times [2022-11-25 15:42:52,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:42:52,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598451841] [2022-11-25 15:42:52,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:42:52,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:42:53,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:53,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 15:42:53,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:53,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 15:42:53,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:53,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-25 15:42:53,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:53,564 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-25 15:42:53,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:42:53,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598451841] [2022-11-25 15:42:53,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598451841] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:42:53,566 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:42:53,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 15:42:53,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562012018] [2022-11-25 15:42:53,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:42:53,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 15:42:53,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:42:53,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 15:42:53,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 15:42:53,654 INFO L87 Difference]: Start difference. First operand has 848 states, 604 states have (on average 1.3394039735099337) internal successors, (809), 619 states have internal predecessors, (809), 199 states have call successors, (199), 44 states have call predecessors, (199), 43 states have return successors, (193), 192 states have call predecessors, (193), 193 states have call successors, (193) Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-25 15:42:57,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:42:57,717 INFO L93 Difference]: Finished difference Result 2607 states and 3769 transitions. [2022-11-25 15:42:57,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 15:42:57,720 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 35 [2022-11-25 15:42:57,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:42:57,750 INFO L225 Difference]: With dead ends: 2607 [2022-11-25 15:42:57,751 INFO L226 Difference]: Without dead ends: 1738 [2022-11-25 15:42:57,762 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 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 15:42:57,766 INFO L413 NwaCegarLoop]: 1112 mSDtfsCounter, 1437 mSDsluCounter, 1305 mSDsCounter, 0 mSdLazyCounter, 1108 mSolverCounterSat, 465 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1617 SdHoareTripleChecker+Valid, 2417 SdHoareTripleChecker+Invalid, 1573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 465 IncrementalHoareTripleChecker+Valid, 1108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-11-25 15:42:57,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1617 Valid, 2417 Invalid, 1573 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [465 Valid, 1108 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-11-25 15:42:57,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1738 states. [2022-11-25 15:42:57,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1738 to 1640. [2022-11-25 15:42:57,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1640 states, 1174 states have (on average 1.291311754684838) internal successors, (1516), 1188 states have internal predecessors, (1516), 381 states have call successors, (381), 85 states have call predecessors, (381), 84 states have return successors, (380), 378 states have call predecessors, (380), 380 states have call successors, (380) [2022-11-25 15:42:57,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1640 states to 1640 states and 2277 transitions. [2022-11-25 15:42:57,996 INFO L78 Accepts]: Start accepts. Automaton has 1640 states and 2277 transitions. Word has length 35 [2022-11-25 15:42:57,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:42:57,997 INFO L495 AbstractCegarLoop]: Abstraction has 1640 states and 2277 transitions. [2022-11-25 15:42:57,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-25 15:42:57,997 INFO L276 IsEmpty]: Start isEmpty. Operand 1640 states and 2277 transitions. [2022-11-25 15:42:58,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-25 15:42:58,006 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:42:58,007 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-25 15:42:58,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 15:42:58,007 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:42:58,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:42:58,008 INFO L85 PathProgramCache]: Analyzing trace with hash -1306280452, now seen corresponding path program 1 times [2022-11-25 15:42:58,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:42:58,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57691639] [2022-11-25 15:42:58,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:42:58,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:42:58,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:58,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 15:42:58,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:58,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 15:42:58,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:58,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-25 15:42:58,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:58,433 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-25 15:42:58,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:42:58,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57691639] [2022-11-25 15:42:58,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57691639] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:42:58,434 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:42:58,434 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 15:42:58,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045620782] [2022-11-25 15:42:58,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:42:58,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 15:42:58,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:42:58,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 15:42:58,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 15:42:58,439 INFO L87 Difference]: Start difference. First operand 1640 states and 2277 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-25 15:43:02,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:43:02,687 INFO L93 Difference]: Finished difference Result 5089 states and 7160 transitions. [2022-11-25 15:43:02,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 15:43:02,688 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 38 [2022-11-25 15:43:02,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:43:02,711 INFO L225 Difference]: With dead ends: 5089 [2022-11-25 15:43:02,711 INFO L226 Difference]: Without dead ends: 3454 [2022-11-25 15:43:02,718 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-11-25 15:43:02,719 INFO L413 NwaCegarLoop]: 1107 mSDtfsCounter, 1398 mSDsluCounter, 2907 mSDsCounter, 0 mSdLazyCounter, 2283 mSolverCounterSat, 457 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1575 SdHoareTripleChecker+Valid, 4014 SdHoareTripleChecker+Invalid, 2740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 457 IncrementalHoareTripleChecker+Valid, 2283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-11-25 15:43:02,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1575 Valid, 4014 Invalid, 2740 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [457 Valid, 2283 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-11-25 15:43:02,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3454 states. [2022-11-25 15:43:02,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3454 to 3286. [2022-11-25 15:43:02,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3286 states, 2351 states have (on average 1.2913653764355593) internal successors, (3036), 2383 states have internal predecessors, (3036), 758 states have call successors, (758), 169 states have call predecessors, (758), 176 states have return successors, (802), 755 states have call predecessors, (802), 757 states have call successors, (802) [2022-11-25 15:43:02,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3286 states to 3286 states and 4596 transitions. [2022-11-25 15:43:02,926 INFO L78 Accepts]: Start accepts. Automaton has 3286 states and 4596 transitions. Word has length 38 [2022-11-25 15:43:02,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:43:02,926 INFO L495 AbstractCegarLoop]: Abstraction has 3286 states and 4596 transitions. [2022-11-25 15:43:02,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-25 15:43:02,927 INFO L276 IsEmpty]: Start isEmpty. Operand 3286 states and 4596 transitions. [2022-11-25 15:43:02,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-11-25 15:43:02,937 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:43:02,937 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-11-25 15:43:02,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 15:43:02,938 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:43:02,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:43:02,938 INFO L85 PathProgramCache]: Analyzing trace with hash -1182436900, now seen corresponding path program 1 times [2022-11-25 15:43:02,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:43:02,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736877966] [2022-11-25 15:43:02,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:43:02,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:43:03,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:03,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 15:43:03,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:03,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 15:43:03,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:03,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-25 15:43:03,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:03,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 15:43:03,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:03,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:43:03,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:03,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 15:43:03,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:03,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:43:03,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:03,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 15:43:03,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:03,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-25 15:43:03,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:03,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 15:43:03,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:03,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-25 15:43:03,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:03,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-25 15:43:03,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:03,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:43:03,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:03,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 15:43:03,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:03,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:43:03,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:03,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-25 15:43:03,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:03,550 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-25 15:43:03,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:43:03,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736877966] [2022-11-25 15:43:03,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736877966] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:43:03,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:43:03,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 15:43:03,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318986412] [2022-11-25 15:43:03,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:43:03,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 15:43:03,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:43:03,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 15:43:03,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-25 15:43:03,557 INFO L87 Difference]: Start difference. First operand 3286 states and 4596 transitions. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (17), 4 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-25 15:43:06,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:43:06,996 INFO L93 Difference]: Finished difference Result 8810 states and 12317 transitions. [2022-11-25 15:43:06,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 15:43:06,998 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (17), 4 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 143 [2022-11-25 15:43:06,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:43:07,035 INFO L225 Difference]: With dead ends: 8810 [2022-11-25 15:43:07,035 INFO L226 Difference]: Without dead ends: 5534 [2022-11-25 15:43:07,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-11-25 15:43:07,058 INFO L413 NwaCegarLoop]: 988 mSDtfsCounter, 1394 mSDsluCounter, 1951 mSDsCounter, 0 mSdLazyCounter, 1558 mSolverCounterSat, 680 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1501 SdHoareTripleChecker+Valid, 2939 SdHoareTripleChecker+Invalid, 2238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 680 IncrementalHoareTripleChecker+Valid, 1558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:43:07,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1501 Valid, 2939 Invalid, 2238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [680 Valid, 1558 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-11-25 15:43:07,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5534 states. [2022-11-25 15:43:07,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5534 to 5146. [2022-11-25 15:43:07,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5146 states, 3709 states have (on average 1.2820167160959828) internal successors, (4755), 3777 states have internal predecessors, (4755), 1108 states have call successors, (1108), 309 states have call predecessors, (1108), 328 states have return successors, (1187), 1095 states have call predecessors, (1187), 1107 states have call successors, (1187) [2022-11-25 15:43:07,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5146 states to 5146 states and 7050 transitions. [2022-11-25 15:43:07,564 INFO L78 Accepts]: Start accepts. Automaton has 5146 states and 7050 transitions. Word has length 143 [2022-11-25 15:43:07,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:43:07,565 INFO L495 AbstractCegarLoop]: Abstraction has 5146 states and 7050 transitions. [2022-11-25 15:43:07,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (17), 4 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-25 15:43:07,565 INFO L276 IsEmpty]: Start isEmpty. Operand 5146 states and 7050 transitions. [2022-11-25 15:43:07,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-11-25 15:43:07,572 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:43:07,572 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-11-25 15:43:07,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 15:43:07,573 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:43:07,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:43:07,574 INFO L85 PathProgramCache]: Analyzing trace with hash 413859884, now seen corresponding path program 1 times [2022-11-25 15:43:07,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:43:07,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316948079] [2022-11-25 15:43:07,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:43:07,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:43:07,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:07,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 15:43:07,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:07,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 15:43:07,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:07,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-25 15:43:07,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:07,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-25 15:43:07,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:08,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-25 15:43:08,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:08,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:43:08,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:08,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 15:43:08,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:08,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-25 15:43:08,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:08,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 15:43:08,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:08,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-25 15:43:08,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:08,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-25 15:43:08,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:08,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-25 15:43:08,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:08,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:43:08,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:08,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 15:43:08,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:08,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:43:08,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:08,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-25 15:43:08,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:08,392 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-11-25 15:43:08,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:43:08,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316948079] [2022-11-25 15:43:08,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316948079] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:43:08,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1682434092] [2022-11-25 15:43:08,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:43:08,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:43:08,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3351dc-0692-40f0-a4f9-dd4c06c00af1/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:43:08,403 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3351dc-0692-40f0-a4f9-dd4c06c00af1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:43:08,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3351dc-0692-40f0-a4f9-dd4c06c00af1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 15:43:09,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:09,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 1450 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 15:43:09,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:43:09,518 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-25 15:43:09,519 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:43:09,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1682434092] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:43:09,519 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 15:43:09,519 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 12 [2022-11-25 15:43:09,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710463878] [2022-11-25 15:43:09,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:43:09,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 15:43:09,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:43:09,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 15:43:09,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-11-25 15:43:09,522 INFO L87 Difference]: Start difference. First operand 5146 states and 7050 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 3 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-25 15:43:11,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:43:11,385 INFO L93 Difference]: Finished difference Result 15426 states and 21144 transitions. [2022-11-25 15:43:11,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 15:43:11,386 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 3 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 136 [2022-11-25 15:43:11,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:43:11,446 INFO L225 Difference]: With dead ends: 15426 [2022-11-25 15:43:11,446 INFO L226 Difference]: Without dead ends: 10290 [2022-11-25 15:43:11,466 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2022-11-25 15:43:11,467 INFO L413 NwaCegarLoop]: 1343 mSDtfsCounter, 1043 mSDsluCounter, 2842 mSDsCounter, 0 mSdLazyCounter, 824 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1047 SdHoareTripleChecker+Valid, 4185 SdHoareTripleChecker+Invalid, 827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 824 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-25 15:43:11,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1047 Valid, 4185 Invalid, 827 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 824 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-25 15:43:11,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10290 states. [2022-11-25 15:43:12,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10290 to 10250. [2022-11-25 15:43:12,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10250 states, 7377 states have (on average 1.2835841127829741) internal successors, (9469), 7549 states have internal predecessors, (9469), 2212 states have call successors, (2212), 617 states have call predecessors, (2212), 660 states have return successors, (2375), 2155 states have call predecessors, (2375), 2211 states have call successors, (2375) [2022-11-25 15:43:12,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10250 states to 10250 states and 14056 transitions. [2022-11-25 15:43:12,264 INFO L78 Accepts]: Start accepts. Automaton has 10250 states and 14056 transitions. Word has length 136 [2022-11-25 15:43:12,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:43:12,265 INFO L495 AbstractCegarLoop]: Abstraction has 10250 states and 14056 transitions. [2022-11-25 15:43:12,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 3 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-25 15:43:12,266 INFO L276 IsEmpty]: Start isEmpty. Operand 10250 states and 14056 transitions. [2022-11-25 15:43:12,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-11-25 15:43:12,273 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:43:12,274 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-11-25 15:43:12,290 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3351dc-0692-40f0-a4f9-dd4c06c00af1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 15:43:12,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3351dc-0692-40f0-a4f9-dd4c06c00af1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:43:12,484 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:43:12,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:43:12,485 INFO L85 PathProgramCache]: Analyzing trace with hash -1703749079, now seen corresponding path program 1 times [2022-11-25 15:43:12,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:43:12,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014268278] [2022-11-25 15:43:12,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:43:12,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:43:12,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:12,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 15:43:12,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:12,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 15:43:12,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:12,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-25 15:43:12,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:12,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-25 15:43:12,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:12,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-25 15:43:13,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:13,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:43:13,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:13,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 15:43:13,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:13,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-25 15:43:13,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:13,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 15:43:13,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:13,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-25 15:43:13,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:13,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-25 15:43:13,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:13,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-25 15:43:13,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:13,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:43:13,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:13,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 15:43:13,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:13,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:43:13,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:13,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-25 15:43:13,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:13,300 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-11-25 15:43:13,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:43:13,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014268278] [2022-11-25 15:43:13,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014268278] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:43:13,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [248617459] [2022-11-25 15:43:13,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:43:13,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:43:13,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3351dc-0692-40f0-a4f9-dd4c06c00af1/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:43:13,303 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3351dc-0692-40f0-a4f9-dd4c06c00af1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:43:13,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3351dc-0692-40f0-a4f9-dd4c06c00af1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 15:43:13,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:13,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 1456 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 15:43:13,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:43:14,190 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-25 15:43:14,190 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:43:14,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [248617459] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:43:14,191 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 15:43:14,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 12 [2022-11-25 15:43:14,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28757248] [2022-11-25 15:43:14,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:43:14,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 15:43:14,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:43:14,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 15:43:14,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-11-25 15:43:14,195 INFO L87 Difference]: Start difference. First operand 10250 states and 14056 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 3 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-25 15:43:16,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:43:16,457 INFO L93 Difference]: Finished difference Result 30738 states and 42162 transitions. [2022-11-25 15:43:16,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 15:43:16,458 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 3 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 139 [2022-11-25 15:43:16,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:43:16,608 INFO L225 Difference]: With dead ends: 30738 [2022-11-25 15:43:16,608 INFO L226 Difference]: Without dead ends: 20498 [2022-11-25 15:43:16,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2022-11-25 15:43:16,660 INFO L413 NwaCegarLoop]: 1484 mSDtfsCounter, 1052 mSDsluCounter, 2990 mSDsCounter, 0 mSdLazyCounter, 812 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1056 SdHoareTripleChecker+Valid, 4474 SdHoareTripleChecker+Invalid, 814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-25 15:43:16,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1056 Valid, 4474 Invalid, 814 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 812 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-25 15:43:16,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20498 states. [2022-11-25 15:43:18,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20498 to 20490. [2022-11-25 15:43:18,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20490 states, 14745 states have (on average 1.2837572058324855) internal successors, (18929), 15093 states have internal predecessors, (18929), 4420 states have call successors, (4420), 1233 states have call predecessors, (4420), 1324 states have return successors, (4739), 4307 states have call predecessors, (4739), 4419 states have call successors, (4739) [2022-11-25 15:43:18,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20490 states to 20490 states and 28088 transitions. [2022-11-25 15:43:18,198 INFO L78 Accepts]: Start accepts. Automaton has 20490 states and 28088 transitions. Word has length 139 [2022-11-25 15:43:18,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:43:18,199 INFO L495 AbstractCegarLoop]: Abstraction has 20490 states and 28088 transitions. [2022-11-25 15:43:18,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 3 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-25 15:43:18,200 INFO L276 IsEmpty]: Start isEmpty. Operand 20490 states and 28088 transitions. [2022-11-25 15:43:18,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-11-25 15:43:18,208 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:43:18,209 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-11-25 15:43:18,226 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3351dc-0692-40f0-a4f9-dd4c06c00af1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 15:43:18,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3351dc-0692-40f0-a4f9-dd4c06c00af1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:43:18,426 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:43:18,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:43:18,427 INFO L85 PathProgramCache]: Analyzing trace with hash -907811920, now seen corresponding path program 1 times [2022-11-25 15:43:18,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:43:18,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95959323] [2022-11-25 15:43:18,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:43:18,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:43:18,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:18,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 15:43:18,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:18,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 15:43:18,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:18,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-25 15:43:18,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:18,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-11-25 15:43:18,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:18,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-25 15:43:19,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:19,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:43:19,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:19,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 15:43:19,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:19,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-25 15:43:19,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:19,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 15:43:19,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:19,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-25 15:43:19,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:19,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-25 15:43:19,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:19,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-25 15:43:19,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:19,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:43:19,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:19,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 15:43:19,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:19,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:43:19,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:19,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-25 15:43:19,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:19,322 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-11-25 15:43:19,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:43:19,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95959323] [2022-11-25 15:43:19,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95959323] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:43:19,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [253951928] [2022-11-25 15:43:19,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:43:19,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:43:19,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3351dc-0692-40f0-a4f9-dd4c06c00af1/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:43:19,326 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3351dc-0692-40f0-a4f9-dd4c06c00af1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:43:19,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3351dc-0692-40f0-a4f9-dd4c06c00af1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 15:43:20,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:20,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 1452 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 15:43:20,036 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:43:20,293 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-25 15:43:20,293 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:43:20,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [253951928] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:43:20,294 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 15:43:20,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 12 [2022-11-25 15:43:20,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262514563] [2022-11-25 15:43:20,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:43:20,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 15:43:20,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:43:20,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 15:43:20,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-11-25 15:43:20,296 INFO L87 Difference]: Start difference. First operand 20490 states and 28088 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 3 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-25 15:43:23,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:43:23,677 INFO L93 Difference]: Finished difference Result 61458 states and 84258 transitions. [2022-11-25 15:43:23,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 15:43:23,689 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 3 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 137 [2022-11-25 15:43:23,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:43:23,932 INFO L225 Difference]: With dead ends: 61458 [2022-11-25 15:43:23,933 INFO L226 Difference]: Without dead ends: 40978 [2022-11-25 15:43:24,010 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2022-11-25 15:43:24,012 INFO L413 NwaCegarLoop]: 1484 mSDtfsCounter, 1046 mSDsluCounter, 3337 mSDsCounter, 0 mSdLazyCounter, 821 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1050 SdHoareTripleChecker+Valid, 4821 SdHoareTripleChecker+Invalid, 823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 821 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:43:24,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1050 Valid, 4821 Invalid, 823 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 821 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-25 15:43:24,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40978 states. [2022-11-25 15:43:26,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40978 to 40970. [2022-11-25 15:43:27,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40970 states, 29481 states have (on average 1.2838438316203657) internal successors, (37849), 30181 states have internal predecessors, (37849), 8836 states have call successors, (8836), 2465 states have call predecessors, (8836), 2652 states have return successors, (9443), 8611 states have call predecessors, (9443), 8835 states have call successors, (9443) [2022-11-25 15:43:27,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40970 states to 40970 states and 56128 transitions. [2022-11-25 15:43:27,226 INFO L78 Accepts]: Start accepts. Automaton has 40970 states and 56128 transitions. Word has length 137 [2022-11-25 15:43:27,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:43:27,229 INFO L495 AbstractCegarLoop]: Abstraction has 40970 states and 56128 transitions. [2022-11-25 15:43:27,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 3 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-25 15:43:27,229 INFO L276 IsEmpty]: Start isEmpty. Operand 40970 states and 56128 transitions. [2022-11-25 15:43:27,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-11-25 15:43:27,241 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:43:27,241 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-11-25 15:43:27,258 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3351dc-0692-40f0-a4f9-dd4c06c00af1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 15:43:27,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3351dc-0692-40f0-a4f9-dd4c06c00af1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:43:27,453 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:43:27,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:43:27,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1470712965, now seen corresponding path program 1 times [2022-11-25 15:43:27,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:43:27,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441575090] [2022-11-25 15:43:27,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:43:27,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:43:27,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:27,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 15:43:27,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:27,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 15:43:27,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:27,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-25 15:43:27,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:27,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-25 15:43:27,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:28,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-25 15:43:28,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:28,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:43:28,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:28,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 15:43:28,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:28,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-25 15:43:28,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:28,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 15:43:28,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:28,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-25 15:43:28,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:28,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-25 15:43:28,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:28,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-25 15:43:28,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:28,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:43:28,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:28,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 15:43:28,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:28,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:43:28,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:28,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-25 15:43:28,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:28,428 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-11-25 15:43:28,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:43:28,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441575090] [2022-11-25 15:43:28,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441575090] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:43:28,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [370937453] [2022-11-25 15:43:28,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:43:28,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:43:28,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3351dc-0692-40f0-a4f9-dd4c06c00af1/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:43:28,431 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3351dc-0692-40f0-a4f9-dd4c06c00af1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:43:28,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3351dc-0692-40f0-a4f9-dd4c06c00af1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 15:43:29,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:29,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 1454 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 15:43:29,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:43:29,320 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-25 15:43:29,320 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:43:29,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [370937453] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:43:29,321 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 15:43:29,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 12 [2022-11-25 15:43:29,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124991464] [2022-11-25 15:43:29,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:43:29,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 15:43:29,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:43:29,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 15:43:29,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-11-25 15:43:29,325 INFO L87 Difference]: Start difference. First operand 40970 states and 56128 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 3 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-25 15:43:34,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:43:34,555 INFO L93 Difference]: Finished difference Result 122898 states and 168378 transitions. [2022-11-25 15:43:34,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 15:43:34,556 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 3 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 138 [2022-11-25 15:43:34,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:43:35,018 INFO L225 Difference]: With dead ends: 122898 [2022-11-25 15:43:35,018 INFO L226 Difference]: Without dead ends: 81374 [2022-11-25 15:43:35,164 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2022-11-25 15:43:35,166 INFO L413 NwaCegarLoop]: 1329 mSDtfsCounter, 1045 mSDsluCounter, 3031 mSDsCounter, 0 mSdLazyCounter, 817 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1049 SdHoareTripleChecker+Valid, 4360 SdHoareTripleChecker+Invalid, 820 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 817 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-25 15:43:35,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1049 Valid, 4360 Invalid, 820 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 817 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-25 15:43:35,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81374 states. [2022-11-25 15:43:40,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81374 to 81364. [2022-11-25 15:43:40,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81364 states, 58519 states have (on average 1.2839761445000768) internal successors, (75137), 59907 states have internal predecessors, (75137), 17590 states have call successors, (17590), 4891 states have call predecessors, (17590), 5254 states have return successors, (18706), 17139 states have call predecessors, (18706), 17589 states have call successors, (18706) [2022-11-25 15:43:41,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81364 states to 81364 states and 111433 transitions. [2022-11-25 15:43:41,141 INFO L78 Accepts]: Start accepts. Automaton has 81364 states and 111433 transitions. Word has length 138 [2022-11-25 15:43:41,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:43:41,142 INFO L495 AbstractCegarLoop]: Abstraction has 81364 states and 111433 transitions. [2022-11-25 15:43:41,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 3 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-25 15:43:41,143 INFO L276 IsEmpty]: Start isEmpty. Operand 81364 states and 111433 transitions. [2022-11-25 15:43:41,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-11-25 15:43:41,150 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:43:41,150 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 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] [2022-11-25 15:43:41,168 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3351dc-0692-40f0-a4f9-dd4c06c00af1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 15:43:41,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3351dc-0692-40f0-a4f9-dd4c06c00af1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:43:41,360 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:43:41,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:43:41,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1145267611, now seen corresponding path program 1 times [2022-11-25 15:43:41,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:43:41,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32680732] [2022-11-25 15:43:41,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:43:41,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:43:41,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:41,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 15:43:41,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:41,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 15:43:41,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:41,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-25 15:43:41,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:41,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-25 15:43:41,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:41,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 15:43:41,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:42,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-25 15:43:42,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:42,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:43:42,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:42,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 15:43:42,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:42,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-25 15:43:42,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:42,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 15:43:42,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:42,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-25 15:43:42,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:42,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-25 15:43:42,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:42,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-25 15:43:42,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:42,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:43:42,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:42,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 15:43:42,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:42,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:43:42,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:42,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-25 15:43:42,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:42,272 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-11-25 15:43:42,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:43:42,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32680732] [2022-11-25 15:43:42,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32680732] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:43:42,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [9617197] [2022-11-25 15:43:42,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:43:42,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:43:42,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3351dc-0692-40f0-a4f9-dd4c06c00af1/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:43:42,276 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3351dc-0692-40f0-a4f9-dd4c06c00af1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:43:42,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3351dc-0692-40f0-a4f9-dd4c06c00af1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 15:43:42,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:42,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 1507 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 15:43:42,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:43:43,328 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 25 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-25 15:43:43,328 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 15:43:43,740 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-25 15:43:43,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [9617197] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 15:43:43,741 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 15:43:43,741 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8, 8] total 20 [2022-11-25 15:43:43,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253309216] [2022-11-25 15:43:43,742 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 15:43:43,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-25 15:43:43,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:43:43,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-25 15:43:43,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=325, Unknown=0, NotChecked=0, Total=380 [2022-11-25 15:43:43,746 INFO L87 Difference]: Start difference. First operand 81364 states and 111433 transitions. Second operand has 20 states, 20 states have (on average 10.0) internal successors, (200), 14 states have internal predecessors, (200), 7 states have call successors, (41), 7 states have call predecessors, (41), 7 states have return successors, (39), 9 states have call predecessors, (39), 7 states have call successors, (39) [2022-11-25 15:44:05,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:44:05,789 INFO L93 Difference]: Finished difference Result 241596 states and 341432 transitions. [2022-11-25 15:44:05,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-25 15:44:05,790 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 10.0) internal successors, (200), 14 states have internal predecessors, (200), 7 states have call successors, (41), 7 states have call predecessors, (41), 7 states have return successors, (39), 9 states have call predecessors, (39), 7 states have call successors, (39) Word has length 148 [2022-11-25 15:44:05,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:44:06,985 INFO L225 Difference]: With dead ends: 241596 [2022-11-25 15:44:06,985 INFO L226 Difference]: Without dead ends: 159396 [2022-11-25 15:44:07,273 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 320 SyntacticMatches, 4 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 413 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=283, Invalid=1523, Unknown=0, NotChecked=0, Total=1806 [2022-11-25 15:44:07,273 INFO L413 NwaCegarLoop]: 1924 mSDtfsCounter, 2443 mSDsluCounter, 18978 mSDsCounter, 0 mSdLazyCounter, 13238 mSolverCounterSat, 948 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2816 SdHoareTripleChecker+Valid, 20902 SdHoareTripleChecker+Invalid, 14186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 948 IncrementalHoareTripleChecker+Valid, 13238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.6s IncrementalHoareTripleChecker+Time [2022-11-25 15:44:07,274 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2816 Valid, 20902 Invalid, 14186 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [948 Valid, 13238 Invalid, 0 Unknown, 0 Unchecked, 13.6s Time] [2022-11-25 15:44:07,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159396 states. [2022-11-25 15:44:15,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159396 to 126258. [2022-11-25 15:44:15,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126258 states, 90677 states have (on average 1.2725718759994264) internal successors, (115393), 93149 states have internal predecessors, (115393), 27232 states have call successors, (27232), 7309 states have call predecessors, (27232), 8348 states have return successors, (30817), 26659 states have call predecessors, (30817), 27231 states have call successors, (30817) [2022-11-25 15:44:16,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126258 states to 126258 states and 173442 transitions. [2022-11-25 15:44:16,126 INFO L78 Accepts]: Start accepts. Automaton has 126258 states and 173442 transitions. Word has length 148 [2022-11-25 15:44:16,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:44:16,126 INFO L495 AbstractCegarLoop]: Abstraction has 126258 states and 173442 transitions. [2022-11-25 15:44:16,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 10.0) internal successors, (200), 14 states have internal predecessors, (200), 7 states have call successors, (41), 7 states have call predecessors, (41), 7 states have return successors, (39), 9 states have call predecessors, (39), 7 states have call successors, (39) [2022-11-25 15:44:16,127 INFO L276 IsEmpty]: Start isEmpty. Operand 126258 states and 173442 transitions. [2022-11-25 15:44:16,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-11-25 15:44:16,138 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:44:16,139 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:44:16,150 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3351dc-0692-40f0-a4f9-dd4c06c00af1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-25 15:44:16,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3351dc-0692-40f0-a4f9-dd4c06c00af1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-25 15:44:16,349 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:44:16,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:44:16,350 INFO L85 PathProgramCache]: Analyzing trace with hash 664296714, now seen corresponding path program 1 times [2022-11-25 15:44:16,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:44:16,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678293421] [2022-11-25 15:44:16,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:44:16,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:44:16,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:44:16,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 15:44:16,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:44:16,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 15:44:16,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:44:16,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-25 15:44:16,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:44:16,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-11-25 15:44:16,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:44:16,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-25 15:44:16,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:44:17,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-25 15:44:17,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:44:17,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:44:17,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:44:17,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 15:44:17,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:44:17,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-25 15:44:17,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:44:17,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 15:44:17,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:44:17,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-25 15:44:17,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:44:17,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 15:44:17,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:44:17,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-25 15:44:17,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:44:17,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-25 15:44:17,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:44:18,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-25 15:44:18,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:44:18,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:44:18,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:44:18,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 15:44:18,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:44:18,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:44:18,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:44:18,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-25 15:44:18,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:44:18,458 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-11-25 15:44:18,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:44:18,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678293421] [2022-11-25 15:44:18,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678293421] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:44:18,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [92365690] [2022-11-25 15:44:18,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:44:18,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:44:18,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3351dc-0692-40f0-a4f9-dd4c06c00af1/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:44:18,462 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3351dc-0692-40f0-a4f9-dd4c06c00af1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:44:18,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3351dc-0692-40f0-a4f9-dd4c06c00af1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-25 15:44:19,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:44:19,158 INFO L263 TraceCheckSpWp]: Trace formula consists of 1597 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 15:44:19,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:44:19,539 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 23 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-11-25 15:44:19,540 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 15:44:19,940 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-11-25 15:44:19,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [92365690] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 15:44:19,941 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 15:44:19,941 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 8, 8] total 22 [2022-11-25 15:44:19,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313484678] [2022-11-25 15:44:19,942 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 15:44:19,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-25 15:44:19,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:44:19,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-25 15:44:19,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2022-11-25 15:44:19,945 INFO L87 Difference]: Start difference. First operand 126258 states and 173442 transitions. Second operand has 22 states, 22 states have (on average 9.772727272727273) internal successors, (215), 15 states have internal predecessors, (215), 7 states have call successors, (43), 7 states have call predecessors, (43), 8 states have return successors, (41), 9 states have call predecessors, (41), 7 states have call successors, (41) [2022-11-25 15:44:51,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:44:51,321 INFO L93 Difference]: Finished difference Result 328274 states and 461913 transitions. [2022-11-25 15:44:51,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-11-25 15:44:51,322 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 9.772727272727273) internal successors, (215), 15 states have internal predecessors, (215), 7 states have call successors, (43), 7 states have call predecessors, (43), 8 states have return successors, (41), 9 states have call predecessors, (41), 7 states have call successors, (41) Word has length 165 [2022-11-25 15:44:51,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:44:52,460 INFO L225 Difference]: With dead ends: 328274 [2022-11-25 15:44:52,460 INFO L226 Difference]: Without dead ends: 201244 [2022-11-25 15:44:52,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 453 GetRequests, 375 SyntacticMatches, 4 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1660 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=770, Invalid=4930, Unknown=0, NotChecked=0, Total=5700 [2022-11-25 15:44:52,887 INFO L413 NwaCegarLoop]: 2409 mSDtfsCounter, 6347 mSDsluCounter, 20502 mSDsCounter, 0 mSdLazyCounter, 19025 mSolverCounterSat, 2846 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6886 SdHoareTripleChecker+Valid, 22911 SdHoareTripleChecker+Invalid, 21871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2846 IncrementalHoareTripleChecker+Valid, 19025 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.9s IncrementalHoareTripleChecker+Time [2022-11-25 15:44:52,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6886 Valid, 22911 Invalid, 21871 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2846 Valid, 19025 Invalid, 0 Unknown, 0 Unchecked, 18.9s Time] [2022-11-25 15:44:53,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201244 states.