./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285c69d7-1b85-481c-9126-452ebad1e107/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285c69d7-1b85-481c-9126-452ebad1e107/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_285c69d7-1b85-481c-9126-452ebad1e107/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285c69d7-1b85-481c-9126-452ebad1e107/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285c69d7-1b85-481c-9126-452ebad1e107/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_285c69d7-1b85-481c-9126-452ebad1e107/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 796dd9af134a9ffa7d65525922d125c3e75a459db15e4643a4f13ca47d95e4ce --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 17:40:40,382 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:40:40,384 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:40:40,404 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:40:40,405 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:40:40,406 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:40:40,407 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:40:40,409 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:40:40,411 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:40:40,412 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:40:40,413 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:40:40,415 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:40:40,415 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:40:40,416 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:40:40,418 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:40:40,419 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:40:40,420 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:40:40,421 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:40:40,422 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:40:40,424 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:40:40,426 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:40:40,427 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:40:40,429 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:40:40,430 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:40:40,433 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:40:40,434 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:40:40,434 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:40:40,435 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:40:40,436 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:40:40,437 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:40:40,437 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:40:40,438 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:40:40,439 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:40:40,440 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:40:40,441 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:40:40,442 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:40:40,443 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:40:40,443 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:40:40,444 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:40:40,445 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:40:40,446 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:40:40,447 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285c69d7-1b85-481c-9126-452ebad1e107/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-25 17:40:40,469 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:40:40,469 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:40:40,469 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:40:40,470 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:40:40,471 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:40:40,471 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:40:40,472 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:40:40,472 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:40:40,472 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:40:40,473 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:40:40,473 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:40:40,473 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:40:40,474 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:40:40,474 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:40:40,475 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:40:40,475 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:40:40,475 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:40:40,476 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:40:40,476 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:40:40,476 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:40:40,477 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:40:40,477 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:40:40,477 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:40:40,478 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:40:40,478 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:40:40,478 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:40:40,478 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:40:40,479 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:40:40,479 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:40:40,479 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:40:40,480 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:40:40,480 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_285c69d7-1b85-481c-9126-452ebad1e107/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285c69d7-1b85-481c-9126-452ebad1e107/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 796dd9af134a9ffa7d65525922d125c3e75a459db15e4643a4f13ca47d95e4ce [2022-11-25 17:40:40,754 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:40:40,789 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:40:40,792 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:40:40,794 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:40:40,794 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:40:40,796 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285c69d7-1b85-481c-9126-452ebad1e107/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i [2022-11-25 17:40:43,883 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:40:44,490 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:40:44,491 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285c69d7-1b85-481c-9126-452ebad1e107/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i [2022-11-25 17:40:44,535 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285c69d7-1b85-481c-9126-452ebad1e107/bin/uautomizer-ZsLfNo2U6R/data/91ef9b7f3/d2cb799b050a4243a0d23f73e201138f/FLAGbc39c0c99 [2022-11-25 17:40:44,550 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285c69d7-1b85-481c-9126-452ebad1e107/bin/uautomizer-ZsLfNo2U6R/data/91ef9b7f3/d2cb799b050a4243a0d23f73e201138f [2022-11-25 17:40:44,553 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:40:44,554 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:40:44,555 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:40:44,556 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:40:44,561 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:40:44,562 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:40:44" (1/1) ... [2022-11-25 17:40:44,563 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e006bb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:44, skipping insertion in model container [2022-11-25 17:40:44,563 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:40:44" (1/1) ... [2022-11-25 17:40:44,571 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:40:44,703 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:40:45,603 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-11-25 17:40:45,617 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irq [2022-11-25 17:40:45,629 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-11-25 17:40:45,642 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irq [2022-11-25 17:40:45,655 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-11-25 17:40:45,951 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-25 17:40:45,961 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-25 17:40:45,961 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-11-25 17:40:45,974 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-11-25 17:40:46,078 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-11-25 17:40:46,178 WARN L623 FunctionHandler]: Unknown extern function dma_free_attrs [2022-11-25 17:40:46,202 WARN L623 FunctionHandler]: Unknown extern function dma_set_mask [2022-11-25 17:40:46,267 WARN L623 FunctionHandler]: Unknown extern function netif_tx_wake_queue [2022-11-25 17:40:46,316 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_irq [2022-11-25 17:40:46,383 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-11-25 17:40:46,384 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:40:46,403 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-11-25 17:40:46,411 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-11-25 17:40:46,423 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-11-25 17:40:46,448 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-11-25 17:40:46,463 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-11-25 17:40:46,471 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 17:40:46,477 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 17:40:46,487 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-11-25 17:40:46,489 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-11-25 17:40:46,495 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 17:40:46,496 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 17:40:46,498 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:40:46,500 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:40:46,501 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:40:46,503 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:40:46,504 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 17:40:46,523 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 17:40:46,524 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-11-25 17:40:46,526 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 17:40:46,532 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 17:40:46,533 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 17:40:46,540 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 17:40:46,541 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 17:40:46,552 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-11-25 17:40:46,555 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 17:40:46,556 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 17:40:46,557 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-11-25 17:40:46,563 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 17:40:46,566 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 17:40:46,570 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 17:40:46,571 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-25 17:40:46,572 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-11-25 17:40:46,573 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-11-25 17:40:46,573 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-11-25 17:40:46,574 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-11-25 17:40:46,574 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-11-25 17:40:46,575 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-11-25 17:40:46,575 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-25 17:40:46,575 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-25 17:40:46,576 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-25 17:40:46,577 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-11-25 17:40:46,578 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-25 17:40:46,578 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-11-25 17:40:46,579 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-25 17:40:46,582 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-11-25 17:40:46,583 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-25 17:40:46,587 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 17:40:46,588 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 17:40:46,593 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 17:40:46,612 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 17:40:46,615 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 17:40:46,616 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 17:40:46,627 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 17:40:46,627 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 17:40:46,643 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 17:40:46,644 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 17:40:46,644 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 17:40:46,651 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 17:40:46,653 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 17:40:46,654 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 17:40:46,654 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 17:40:46,655 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 17:40:46,657 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 17:40:46,658 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 17:40:46,659 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 17:40:46,677 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 17:40:46,678 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 17:40:46,679 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 17:40:46,679 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 17:40:46,680 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-11-25 17:40:46,682 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 17:40:46,682 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 17:40:46,683 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 17:40:46,685 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-11-25 17:40:46,686 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-11-25 17:40:46,687 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-11-25 17:40:46,688 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 17:40:46,689 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 17:40:46,692 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-11-25 17:40:46,693 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-11-25 17:40:46,695 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-11-25 17:40:46,696 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 17:40:46,736 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-25 17:40:46,738 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-11-25 17:40:46,739 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-11-25 17:40:46,746 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-25 17:40:46,753 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-25 17:40:46,754 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-11-25 17:40:46,756 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-11-25 17:40:46,765 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-25 17:40:46,773 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 17:40:46,774 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 17:40:46,787 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-25 17:40:46,788 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-11-25 17:40:46,789 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-11-25 17:40:46,789 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 17:40:46,790 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 17:40:46,800 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 17:40:46,806 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-11-25 17:40:46,818 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 17:40:46,824 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-25 17:40:46,841 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-25 17:40:46,842 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 17:40:46,843 WARN L623 FunctionHandler]: Unknown extern function dma_alloc_attrs [2022-11-25 17:40:46,844 WARN L623 FunctionHandler]: Unknown extern function dma_alloc_attrs [2022-11-25 17:40:46,845 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 17:40:46,846 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 17:40:46,847 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 17:40:46,848 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 17:40:46,848 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 17:40:46,849 WARN L623 FunctionHandler]: Unknown extern function dma_free_attrs [2022-11-25 17:40:46,849 WARN L623 FunctionHandler]: Unknown extern function dma_free_attrs [2022-11-25 17:40:46,854 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-11-25 17:40:46,855 WARN L623 FunctionHandler]: Unknown extern function synchronize_irq [2022-11-25 17:40:46,855 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-11-25 17:40:46,865 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 17:40:46,882 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-25 17:40:46,882 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:40:46,883 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-11-25 17:40:46,883 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-11-25 17:40:46,896 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-25 17:40:46,899 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-11-25 17:40:46,900 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-11-25 17:40:46,900 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-11-25 17:40:46,901 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-11-25 17:40:46,901 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-11-25 17:40:46,902 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-11-25 17:40:46,907 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-25 17:40:46,907 WARN L623 FunctionHandler]: Unknown extern function generic_mii_ioctl [2022-11-25 17:40:46,908 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:40:46,918 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-25 17:40:46,918 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_gset [2022-11-25 17:40:46,919 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:40:46,923 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-25 17:40:46,924 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_sset [2022-11-25 17:40:46,925 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:40:46,930 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-25 17:40:46,933 WARN L623 FunctionHandler]: Unknown extern function mii_nway_restart [2022-11-25 17:40:46,934 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:40:46,940 WARN L623 FunctionHandler]: Unknown extern function pci_iounmap [2022-11-25 17:40:46,940 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-11-25 17:40:46,941 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-25 17:40:46,948 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-11-25 17:40:46,949 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:40:46,950 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-11-25 17:40:46,951 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:40:46,957 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-11-25 17:40:46,960 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 17:40:46,961 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-11-25 17:40:46,962 WARN L623 FunctionHandler]: Unknown extern function pci_request_regions [2022-11-25 17:40:46,962 WARN L623 FunctionHandler]: Unknown extern function pci_iomap [2022-11-25 17:40:46,964 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:40:46,964 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-11-25 17:40:46,965 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-11-25 17:40:46,965 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-11-25 17:40:46,966 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 17:40:46,966 WARN L623 FunctionHandler]: Unknown extern function pci_iounmap [2022-11-25 17:40:46,967 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-11-25 17:40:46,967 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-25 17:40:47,015 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-11-25 17:40:47,017 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-11-25 17:40:47,017 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-11-25 17:40:47,018 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-11-25 17:40:47,020 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-11-25 17:40:47,020 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-11-25 17:40:47,021 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-11-25 17:40:47,022 WARN L623 FunctionHandler]: Unknown extern function ldv_ndo_init_4 [2022-11-25 17:40:47,022 WARN L623 FunctionHandler]: Unknown extern function ldv_ndo_uninit_4 [2022-11-25 17:40:47,024 WARN L623 FunctionHandler]: Unknown extern function ldv_shutdown_3 [2022-11-25 17:40:47,025 WARN L623 FunctionHandler]: Unknown extern function ldv_check_final_state [2022-11-25 17:40:47,027 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-11-25 17:40:47,027 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-11-25 17:40:47,028 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-11-25 17:40:47,029 WARN L623 FunctionHandler]: Unknown extern function flush_workqueue [2022-11-25 17:40:47,032 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-11-25 17:40:47,096 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-11-25 17:40:47,096 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-11-25 17:40:47,096 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-11-25 17:40:47,096 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-25 17:40:47,097 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-11-25 17:40:47,097 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-25 17:40:47,098 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-11-25 17:40:47,098 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-11-25 17:40:47,104 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285c69d7-1b85-481c-9126-452ebad1e107/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i[263179,263192] [2022-11-25 17:40:47,134 WARN L623 FunctionHandler]: Unknown extern function ldv_some_page [2022-11-25 17:40:47,180 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:40:47,226 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:40:47,362 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-11-25 17:40:47,362 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irq [2022-11-25 17:40:47,363 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-11-25 17:40:47,363 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irq [2022-11-25 17:40:47,364 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-11-25 17:40:47,386 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-25 17:40:47,387 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-25 17:40:47,389 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-11-25 17:40:47,390 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-11-25 17:40:47,393 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-11-25 17:40:47,397 WARN L623 FunctionHandler]: Unknown extern function dma_free_attrs [2022-11-25 17:40:47,399 WARN L623 FunctionHandler]: Unknown extern function dma_set_mask [2022-11-25 17:40:47,401 WARN L623 FunctionHandler]: Unknown extern function netif_tx_wake_queue [2022-11-25 17:40:47,403 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_irq [2022-11-25 17:40:47,406 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-11-25 17:40:47,406 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:40:47,407 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-11-25 17:40:47,407 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-11-25 17:40:47,410 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-11-25 17:40:47,416 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-11-25 17:40:47,418 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-11-25 17:40:47,419 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 17:40:47,420 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 17:40:47,421 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-11-25 17:40:47,421 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-11-25 17:40:47,422 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 17:40:47,422 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 17:40:47,423 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:40:47,423 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:40:47,423 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:40:47,424 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:40:47,424 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 17:40:47,431 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 17:40:47,431 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-11-25 17:40:47,432 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 17:40:47,433 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 17:40:47,434 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 17:40:47,438 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 17:40:47,440 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 17:40:47,442 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-11-25 17:40:47,443 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 17:40:47,443 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 17:40:47,444 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-11-25 17:40:47,445 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 17:40:47,445 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 17:40:47,446 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 17:40:47,446 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-25 17:40:47,446 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-11-25 17:40:47,446 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-11-25 17:40:47,447 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-11-25 17:40:47,447 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-11-25 17:40:47,447 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-11-25 17:40:47,447 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-11-25 17:40:47,449 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-25 17:40:47,450 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-25 17:40:47,450 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-25 17:40:47,450 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-11-25 17:40:47,451 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-25 17:40:47,453 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-11-25 17:40:47,453 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-25 17:40:47,454 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-11-25 17:40:47,454 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-25 17:40:47,454 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 17:40:47,455 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 17:40:47,455 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 17:40:47,458 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 17:40:47,467 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 17:40:47,467 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 17:40:47,469 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 17:40:47,469 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 17:40:47,476 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 17:40:47,477 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 17:40:47,477 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 17:40:47,478 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 17:40:47,479 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 17:40:47,479 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 17:40:47,484 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 17:40:47,487 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 17:40:47,489 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 17:40:47,491 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 17:40:47,491 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 17:40:47,493 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 17:40:47,494 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 17:40:47,495 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 17:40:47,495 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 17:40:47,495 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-11-25 17:40:47,497 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 17:40:47,498 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 17:40:47,498 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 17:40:47,499 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-11-25 17:40:47,499 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-11-25 17:40:47,500 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-11-25 17:40:47,500 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 17:40:47,502 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 17:40:47,502 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-11-25 17:40:47,503 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-11-25 17:40:47,504 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-11-25 17:40:47,505 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 17:40:47,512 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-25 17:40:47,512 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-11-25 17:40:47,513 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-11-25 17:40:47,514 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-25 17:40:47,516 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-25 17:40:47,517 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-11-25 17:40:47,517 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-11-25 17:40:47,518 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-25 17:40:47,523 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 17:40:47,523 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 17:40:47,526 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-25 17:40:47,526 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-11-25 17:40:47,527 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-11-25 17:40:47,527 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 17:40:47,528 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 17:40:47,530 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 17:40:47,531 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-11-25 17:40:47,533 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 17:40:47,534 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-25 17:40:47,537 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-25 17:40:47,538 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 17:40:47,538 WARN L623 FunctionHandler]: Unknown extern function dma_alloc_attrs [2022-11-25 17:40:47,539 WARN L623 FunctionHandler]: Unknown extern function dma_alloc_attrs [2022-11-25 17:40:47,539 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 17:40:47,540 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 17:40:47,541 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 17:40:47,541 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 17:40:47,542 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 17:40:47,542 WARN L623 FunctionHandler]: Unknown extern function dma_free_attrs [2022-11-25 17:40:47,542 WARN L623 FunctionHandler]: Unknown extern function dma_free_attrs [2022-11-25 17:40:47,543 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-11-25 17:40:47,544 WARN L623 FunctionHandler]: Unknown extern function synchronize_irq [2022-11-25 17:40:47,544 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-11-25 17:40:47,546 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 17:40:47,589 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-25 17:40:47,590 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:40:47,590 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-11-25 17:40:47,590 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-11-25 17:40:47,605 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-25 17:40:47,606 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-11-25 17:40:47,606 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-11-25 17:40:47,607 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-11-25 17:40:47,607 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-11-25 17:40:47,607 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-11-25 17:40:47,608 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-11-25 17:40:47,609 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-25 17:40:47,609 WARN L623 FunctionHandler]: Unknown extern function generic_mii_ioctl [2022-11-25 17:40:47,609 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:40:47,611 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-25 17:40:47,611 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_gset [2022-11-25 17:40:47,611 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:40:47,611 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-25 17:40:47,612 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_sset [2022-11-25 17:40:47,612 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:40:47,612 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-25 17:40:47,613 WARN L623 FunctionHandler]: Unknown extern function mii_nway_restart [2022-11-25 17:40:47,613 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:40:47,614 WARN L623 FunctionHandler]: Unknown extern function pci_iounmap [2022-11-25 17:40:47,614 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-11-25 17:40:47,614 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-25 17:40:47,615 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-11-25 17:40:47,616 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:40:47,616 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-11-25 17:40:47,616 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:40:47,617 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-11-25 17:40:47,617 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 17:40:47,617 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-11-25 17:40:47,619 WARN L623 FunctionHandler]: Unknown extern function pci_request_regions [2022-11-25 17:40:47,620 WARN L623 FunctionHandler]: Unknown extern function pci_iomap [2022-11-25 17:40:47,620 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:40:47,621 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-11-25 17:40:47,621 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-11-25 17:40:47,622 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-11-25 17:40:47,622 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 17:40:47,623 WARN L623 FunctionHandler]: Unknown extern function pci_iounmap [2022-11-25 17:40:47,623 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-11-25 17:40:47,623 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-25 17:40:47,632 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-11-25 17:40:47,633 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-11-25 17:40:47,634 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-11-25 17:40:47,634 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-11-25 17:40:47,636 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-11-25 17:40:47,636 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-11-25 17:40:47,636 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-11-25 17:40:47,637 WARN L623 FunctionHandler]: Unknown extern function ldv_ndo_init_4 [2022-11-25 17:40:47,638 WARN L623 FunctionHandler]: Unknown extern function ldv_ndo_uninit_4 [2022-11-25 17:40:47,640 WARN L623 FunctionHandler]: Unknown extern function ldv_shutdown_3 [2022-11-25 17:40:47,641 WARN L623 FunctionHandler]: Unknown extern function ldv_check_final_state [2022-11-25 17:40:47,642 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-11-25 17:40:47,643 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-11-25 17:40:47,643 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-11-25 17:40:47,644 WARN L623 FunctionHandler]: Unknown extern function flush_workqueue [2022-11-25 17:40:47,644 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-11-25 17:40:47,650 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-11-25 17:40:47,651 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-11-25 17:40:47,651 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-11-25 17:40:47,651 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-25 17:40:47,652 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-11-25 17:40:47,652 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-25 17:40:47,653 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-11-25 17:40:47,653 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-11-25 17:40:47,653 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_285c69d7-1b85-481c-9126-452ebad1e107/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i[263179,263192] [2022-11-25 17:40:47,656 WARN L623 FunctionHandler]: Unknown extern function ldv_some_page [2022-11-25 17:40:47,669 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:40:47,815 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:40:47,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:47 WrapperNode [2022-11-25 17:40:47,816 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:40:47,817 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:40:47,818 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:40:47,818 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:40:47,825 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:47" (1/1) ... [2022-11-25 17:40:47,919 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:47" (1/1) ... [2022-11-25 17:40:48,060 INFO L138 Inliner]: procedures = 262, calls = 1355, calls flagged for inlining = 121, calls inlined = 116, statements flattened = 3438 [2022-11-25 17:40:48,061 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:40:48,062 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:40:48,062 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:40:48,062 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:40:48,071 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:47" (1/1) ... [2022-11-25 17:40:48,071 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:47" (1/1) ... [2022-11-25 17:40:48,098 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:47" (1/1) ... [2022-11-25 17:40:48,099 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:47" (1/1) ... [2022-11-25 17:40:48,189 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:47" (1/1) ... [2022-11-25 17:40:48,204 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:47" (1/1) ... [2022-11-25 17:40:48,229 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:47" (1/1) ... [2022-11-25 17:40:48,255 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:47" (1/1) ... [2022-11-25 17:40:48,293 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:40:48,294 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:40:48,294 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:40:48,294 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:40:48,308 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:47" (1/1) ... [2022-11-25 17:40:48,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:40:48,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285c69d7-1b85-481c-9126-452ebad1e107/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:40:48,335 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285c69d7-1b85-481c-9126-452ebad1e107/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:40:48,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285c69d7-1b85-481c-9126-452ebad1e107/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:40:48,371 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_txfree [2022-11-25 17:40:48,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_txfree [2022-11-25 17:40:48,371 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2022-11-25 17:40:48,371 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2022-11-25 17:40:48,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-25 17:40:48,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-25 17:40:48,371 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-25 17:40:48,372 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-25 17:40:48,372 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_timeout [2022-11-25 17:40:48,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_timeout [2022-11-25 17:40:48,372 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-25 17:40:48,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-25 17:40:48,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-25 17:40:48,372 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-25 17:40:48,372 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_reset_after_host_error [2022-11-25 17:40:48,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_reset_after_host_error [2022-11-25 17:40:48,372 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-25 17:40:48,373 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-25 17:40:48,373 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-25 17:40:48,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-25 17:40:48,373 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-25 17:40:48,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-25 17:40:48,373 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-25 17:40:48,373 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-25 17:40:48,373 INFO L130 BoogieDeclarations]: Found specification of procedure init_tfdlist [2022-11-25 17:40:48,373 INFO L138 BoogieDeclarations]: Found implementation of procedure init_tfdlist [2022-11-25 17:40:48,373 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-25 17:40:48,374 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-25 17:40:48,374 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-25 17:40:48,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-25 17:40:48,374 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2022-11-25 17:40:48,374 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2022-11-25 17:40:48,374 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-25 17:40:48,374 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-25 17:40:48,374 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_2 [2022-11-25 17:40:48,374 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_2 [2022-11-25 17:40:48,374 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-25 17:40:48,375 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-25 17:40:48,375 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2022-11-25 17:40:48,375 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2022-11-25 17:40:48,375 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_set_multicast_list [2022-11-25 17:40:48,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_set_multicast_list [2022-11-25 17:40:48,375 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2022-11-25 17:40:48,375 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2022-11-25 17:40:48,375 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-25 17:40:48,375 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-25 17:40:48,375 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-11-25 17:40:48,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-11-25 17:40:48,376 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-25 17:40:48,376 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-25 17:40:48,376 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-25 17:40:48,376 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-25 17:40:48,376 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_clear [2022-11-25 17:40:48,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_clear [2022-11-25 17:40:48,376 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_rx_clear [2022-11-25 17:40:48,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_rx_clear [2022-11-25 17:40:48,377 INFO L130 BoogieDeclarations]: Found specification of procedure read_eeprom [2022-11-25 17:40:48,377 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eeprom [2022-11-25 17:40:48,377 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 17:40:48,377 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-25 17:40:48,377 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-25 17:40:48,377 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2022-11-25 17:40:48,377 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2022-11-25 17:40:48,377 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum_none_assert [2022-11-25 17:40:48,377 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum_none_assert [2022-11-25 17:40:48,377 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 17:40:48,378 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-11-25 17:40:48,378 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-11-25 17:40:48,378 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-25 17:40:48,378 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-25 17:40:48,378 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2022-11-25 17:40:48,378 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2022-11-25 17:40:48,378 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-11-25 17:40:48,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-11-25 17:40:48,378 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_free_skb [2022-11-25 17:40:48,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_free_skb [2022-11-25 17:40:48,379 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-25 17:40:48,379 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-25 17:40:48,379 INFO L130 BoogieDeclarations]: Found specification of procedure send_three_state [2022-11-25 17:40:48,379 INFO L138 BoogieDeclarations]: Found implementation of procedure send_three_state [2022-11-25 17:40:48,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 17:40:48,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-25 17:40:48,379 INFO L130 BoogieDeclarations]: Found specification of procedure read_phy_bit [2022-11-25 17:40:48,379 INFO L138 BoogieDeclarations]: Found implementation of procedure read_phy_bit [2022-11-25 17:40:48,379 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-25 17:40:48,379 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-25 17:40:48,380 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-25 17:40:48,380 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-25 17:40:48,380 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-25 17:40:48,380 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-25 17:40:48,380 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-25 17:40:48,380 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-11-25 17:40:48,380 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-11-25 17:40:48,380 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-25 17:40:48,380 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-25 17:40:48,380 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_io_config [2022-11-25 17:40:48,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_io_config [2022-11-25 17:40:48,381 INFO L130 BoogieDeclarations]: Found specification of procedure init_rfdlist [2022-11-25 17:40:48,381 INFO L138 BoogieDeclarations]: Found implementation of procedure init_rfdlist [2022-11-25 17:40:48,381 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_open [2022-11-25 17:40:48,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_open [2022-11-25 17:40:48,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-25 17:40:48,381 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_ioctl [2022-11-25 17:40:48,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_ioctl [2022-11-25 17:40:48,381 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-25 17:40:48,421 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-25 17:40:48,421 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 17:40:48,422 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-25 17:40:48,422 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-25 17:40:48,422 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-25 17:40:48,422 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-25 17:40:48,422 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-25 17:40:48,422 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-25 17:40:48,422 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-25 17:40:48,422 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-25 17:40:48,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-25 17:40:48,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-25 17:40:48,423 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-11-25 17:40:48,423 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-11-25 17:40:48,423 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-25 17:40:48,423 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-25 17:40:48,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 17:40:48,423 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-25 17:40:48,423 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-25 17:40:48,423 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2022-11-25 17:40:48,423 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2022-11-25 17:40:48,423 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2022-11-25 17:40:48,424 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2022-11-25 17:40:48,424 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-25 17:40:48,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-25 17:40:48,424 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_get_stats [2022-11-25 17:40:48,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_get_stats [2022-11-25 17:40:48,424 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-25 17:40:48,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-25 17:40:48,424 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rxrestore [2022-11-25 17:40:48,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rxrestore [2022-11-25 17:40:48,425 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 17:40:48,425 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_stop [2022-11-25 17:40:48,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_stop [2022-11-25 17:40:48,425 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-25 17:40:48,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-25 17:40:48,425 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_config_autoneg [2022-11-25 17:40:48,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_config_autoneg [2022-11-25 17:40:48,425 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:40:48,425 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-25 17:40:48,425 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-25 17:40:48,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 17:40:48,426 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-11-25 17:40:48,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-11-25 17:40:48,426 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2022-11-25 17:40:48,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2022-11-25 17:40:48,426 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_ioaddr [2022-11-25 17:40:48,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_ioaddr [2022-11-25 17:40:48,426 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2022-11-25 17:40:48,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2022-11-25 17:40:48,427 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_reset [2022-11-25 17:40:48,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_reset [2022-11-25 17:40:48,427 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-25 17:40:48,427 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-25 17:40:48,427 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-25 17:40:48,427 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-25 17:40:48,427 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_get_rxbuff [2022-11-25 17:40:48,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_get_rxbuff [2022-11-25 17:40:48,427 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2022-11-25 17:40:48,428 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2022-11-25 17:40:48,428 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_write_phy_ctl [2022-11-25 17:40:48,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_write_phy_ctl [2022-11-25 17:40:48,428 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2022-11-25 17:40:48,428 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2022-11-25 17:40:48,428 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_change_mtu [2022-11-25 17:40:48,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_change_mtu [2022-11-25 17:40:48,428 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-25 17:40:48,428 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-25 17:40:48,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 17:40:48,429 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_check_error [2022-11-25 17:40:48,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_check_error [2022-11-25 17:40:48,429 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_drive_phy_ctl_low_high [2022-11-25 17:40:48,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_drive_phy_ctl_low_high [2022-11-25 17:40:48,429 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2022-11-25 17:40:48,429 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2022-11-25 17:40:48,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:40:48,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:40:49,135 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:40:49,141 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:40:50,394 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-25 17:40:53,549 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:40:53,575 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:40:53,575 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-25 17:40:53,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:40:53 BoogieIcfgContainer [2022-11-25 17:40:53,581 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:40:53,587 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:40:53,587 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:40:53,590 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:40:53,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:40:44" (1/3) ... [2022-11-25 17:40:53,592 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3df3f47a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:40:53, skipping insertion in model container [2022-11-25 17:40:53,592 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:47" (2/3) ... [2022-11-25 17:40:53,593 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3df3f47a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:40:53, skipping insertion in model container [2022-11-25 17:40:53,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:40:53" (3/3) ... [2022-11-25 17:40:53,595 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i [2022-11-25 17:40:53,615 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:40:53,616 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 17:40:53,730 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:40:53,740 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;@636fae1b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:40:53,741 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 17:40:53,751 INFO L276 IsEmpty]: Start isEmpty. Operand has 1429 states, 983 states have (on average 1.316378433367243) internal successors, (1294), 1016 states have internal predecessors, (1294), 364 states have call successors, (364), 83 states have call predecessors, (364), 82 states have return successors, (356), 356 states have call predecessors, (356), 356 states have call successors, (356) [2022-11-25 17:40:53,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-11-25 17:40:53,776 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:40:53,777 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:40:53,778 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:40:53,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:40:53,783 INFO L85 PathProgramCache]: Analyzing trace with hash -1005160368, now seen corresponding path program 1 times [2022-11-25 17:40:53,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:40:53,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860381367] [2022-11-25 17:40:53,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:40:53,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:40:54,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:40:54,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:40:54,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:40:54,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:40:54,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:40:54,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:40:54,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:40:54,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 17:40:54,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:40:54,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:40:54,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:40:54,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:40:54,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:40:54,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-25 17:40:54,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:40:54,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:40:54,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:40:54,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:40:54,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:40:54,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-25 17:40:54,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:40:54,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:40:54,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:40:54,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:40:54,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:40:54,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-25 17:40:54,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:40:54,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-25 17:40:54,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:40:54,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-25 17:40:54,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:40:54,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-25 17:40:54,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:40:54,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-25 17:40:54,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:40:54,809 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2022-11-25 17:40:54,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:40:54,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860381367] [2022-11-25 17:40:54,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860381367] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:40:54,811 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:40:54,811 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:40:54,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108000123] [2022-11-25 17:40:54,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:40:54,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:40:54,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:40:54,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:40:54,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:40:54,873 INFO L87 Difference]: Start difference. First operand has 1429 states, 983 states have (on average 1.316378433367243) internal successors, (1294), 1016 states have internal predecessors, (1294), 364 states have call successors, (364), 83 states have call predecessors, (364), 82 states have return successors, (356), 356 states have call predecessors, (356), 356 states have call successors, (356) Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-25 17:41:02,785 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:41:04,594 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:41:05,960 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:41:07,365 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:41:08,879 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:41:09,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:41:09,123 INFO L93 Difference]: Finished difference Result 3098 states and 4476 transitions. [2022-11-25 17:41:09,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 17:41:09,126 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 123 [2022-11-25 17:41:09,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:41:09,170 INFO L225 Difference]: With dead ends: 3098 [2022-11-25 17:41:09,172 INFO L226 Difference]: Without dead ends: 1653 [2022-11-25 17:41:09,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:41:09,193 INFO L413 NwaCegarLoop]: 1428 mSDtfsCounter, 1146 mSDsluCounter, 2323 mSDsCounter, 0 mSdLazyCounter, 2014 mSolverCounterSat, 1084 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1150 SdHoareTripleChecker+Valid, 3751 SdHoareTripleChecker+Invalid, 3099 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1084 IncrementalHoareTripleChecker+Valid, 2014 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time [2022-11-25 17:41:09,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1150 Valid, 3751 Invalid, 3099 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1084 Valid, 2014 Invalid, 1 Unknown, 0 Unchecked, 13.8s Time] [2022-11-25 17:41:09,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1653 states. [2022-11-25 17:41:09,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1653 to 1402. [2022-11-25 17:41:09,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1402 states, 966 states have (on average 1.305383022774327) internal successors, (1261), 988 states have internal predecessors, (1261), 354 states have call successors, (354), 82 states have call predecessors, (354), 81 states have return successors, (353), 353 states have call predecessors, (353), 353 states have call successors, (353) [2022-11-25 17:41:09,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1402 states to 1402 states and 1968 transitions. [2022-11-25 17:41:09,384 INFO L78 Accepts]: Start accepts. Automaton has 1402 states and 1968 transitions. Word has length 123 [2022-11-25 17:41:09,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:41:09,385 INFO L495 AbstractCegarLoop]: Abstraction has 1402 states and 1968 transitions. [2022-11-25 17:41:09,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-25 17:41:09,388 INFO L276 IsEmpty]: Start isEmpty. Operand 1402 states and 1968 transitions. [2022-11-25 17:41:09,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-11-25 17:41:09,399 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:41:09,400 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:41:09,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:41:09,400 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:41:09,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:41:09,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1923008860, now seen corresponding path program 1 times [2022-11-25 17:41:09,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:41:09,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032672053] [2022-11-25 17:41:09,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:41:09,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:41:09,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:10,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:41:10,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:10,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:41:10,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:10,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:41:10,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:10,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 17:41:10,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:10,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:41:10,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:10,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:41:10,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:10,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-25 17:41:10,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:10,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:41:10,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:10,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:41:10,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:10,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-25 17:41:10,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:10,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:41:10,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:10,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:41:10,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:10,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-25 17:41:10,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:10,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-25 17:41:10,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:10,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-25 17:41:10,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:10,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-25 17:41:10,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:10,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-11-25 17:41:10,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:10,225 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2022-11-25 17:41:10,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:41:10,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032672053] [2022-11-25 17:41:10,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032672053] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:41:10,226 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:41:10,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:41:10,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835900009] [2022-11-25 17:41:10,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:41:10,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 17:41:10,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:41:10,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 17:41:10,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:41:10,229 INFO L87 Difference]: Start difference. First operand 1402 states and 1968 transitions. Second operand has 8 states, 8 states have (on average 6.0) internal successors, (48), 4 states have internal predecessors, (48), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-25 17:41:19,859 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:41:24,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:41:26,141 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:41:27,773 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:41:29,614 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:41:31,620 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:41:31,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:41:31,991 INFO L93 Difference]: Finished difference Result 4671 states and 6712 transitions. [2022-11-25 17:41:31,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 17:41:31,992 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 4 states have internal predecessors, (48), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 122 [2022-11-25 17:41:31,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:41:32,020 INFO L225 Difference]: With dead ends: 4671 [2022-11-25 17:41:32,021 INFO L226 Difference]: Without dead ends: 3290 [2022-11-25 17:41:32,030 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2022-11-25 17:41:32,031 INFO L413 NwaCegarLoop]: 1720 mSDtfsCounter, 5168 mSDsluCounter, 4650 mSDsCounter, 0 mSdLazyCounter, 4845 mSolverCounterSat, 3411 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5384 SdHoareTripleChecker+Valid, 6370 SdHoareTripleChecker+Invalid, 8258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3411 IncrementalHoareTripleChecker+Valid, 4845 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:41:32,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5384 Valid, 6370 Invalid, 8258 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3411 Valid, 4845 Invalid, 2 Unknown, 0 Unchecked, 21.1s Time] [2022-11-25 17:41:32,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3290 states. [2022-11-25 17:41:32,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3290 to 2810. [2022-11-25 17:41:32,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2810 states, 1937 states have (on average 1.3045947341249355) internal successors, (2527), 1983 states have internal predecessors, (2527), 706 states have call successors, (706), 163 states have call predecessors, (706), 166 states have return successors, (727), 707 states have call predecessors, (727), 705 states have call successors, (727) [2022-11-25 17:41:32,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2810 states to 2810 states and 3960 transitions. [2022-11-25 17:41:32,221 INFO L78 Accepts]: Start accepts. Automaton has 2810 states and 3960 transitions. Word has length 122 [2022-11-25 17:41:32,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:41:32,225 INFO L495 AbstractCegarLoop]: Abstraction has 2810 states and 3960 transitions. [2022-11-25 17:41:32,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 4 states have internal predecessors, (48), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-25 17:41:32,225 INFO L276 IsEmpty]: Start isEmpty. Operand 2810 states and 3960 transitions. [2022-11-25 17:41:32,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-11-25 17:41:32,237 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:41:32,238 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:41:32,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 17:41:32,238 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:41:32,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:41:32,239 INFO L85 PathProgramCache]: Analyzing trace with hash -857923483, now seen corresponding path program 1 times [2022-11-25 17:41:32,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:41:32,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504715470] [2022-11-25 17:41:32,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:41:32,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:41:32,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:32,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:41:32,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:32,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:41:32,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:32,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:41:32,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:32,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 17:41:32,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:32,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:41:32,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:32,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:41:32,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:32,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-25 17:41:32,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:32,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:41:32,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:32,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:41:32,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:32,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-25 17:41:32,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:32,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:41:32,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:32,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:41:32,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:32,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-25 17:41:32,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:32,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-25 17:41:32,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:32,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-25 17:41:32,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:32,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-25 17:41:32,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:32,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-25 17:41:32,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:32,939 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2022-11-25 17:41:32,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:41:32,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504715470] [2022-11-25 17:41:32,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504715470] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:41:32,940 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:41:32,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:41:32,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852191878] [2022-11-25 17:41:32,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:41:32,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 17:41:32,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:41:32,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 17:41:32,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:41:32,944 INFO L87 Difference]: Start difference. First operand 2810 states and 3960 transitions. Second operand has 8 states, 8 states have (on average 5.875) internal successors, (47), 4 states have internal predecessors, (47), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-25 17:41:43,631 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:41:46,845 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:41:48,465 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:41:52,418 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:41:53,476 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:41:55,057 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:41:57,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:41:57,122 INFO L93 Difference]: Finished difference Result 9342 states and 13485 transitions. [2022-11-25 17:41:57,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 17:41:57,123 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 4 states have internal predecessors, (47), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 121 [2022-11-25 17:41:57,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:41:57,170 INFO L225 Difference]: With dead ends: 9342 [2022-11-25 17:41:57,170 INFO L226 Difference]: Without dead ends: 6553 [2022-11-25 17:41:57,187 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2022-11-25 17:41:57,188 INFO L413 NwaCegarLoop]: 1846 mSDtfsCounter, 5104 mSDsluCounter, 4993 mSDsCounter, 0 mSdLazyCounter, 4980 mSolverCounterSat, 3266 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5320 SdHoareTripleChecker+Valid, 6839 SdHoareTripleChecker+Invalid, 8247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3266 IncrementalHoareTripleChecker+Valid, 4980 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.4s IncrementalHoareTripleChecker+Time [2022-11-25 17:41:57,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5320 Valid, 6839 Invalid, 8247 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3266 Valid, 4980 Invalid, 1 Unknown, 0 Unchecked, 23.4s Time] [2022-11-25 17:41:57,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6553 states. [2022-11-25 17:41:57,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6553 to 5640. [2022-11-25 17:41:57,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5640 states, 3885 states have (on average 1.3042471042471042) internal successors, (5067), 3988 states have internal predecessors, (5067), 1414 states have call successors, (1414), 325 states have call predecessors, (1414), 340 states have return successors, (1523), 1414 states have call predecessors, (1523), 1413 states have call successors, (1523) [2022-11-25 17:41:57,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5640 states to 5640 states and 8004 transitions. [2022-11-25 17:41:57,558 INFO L78 Accepts]: Start accepts. Automaton has 5640 states and 8004 transitions. Word has length 121 [2022-11-25 17:41:57,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:41:57,558 INFO L495 AbstractCegarLoop]: Abstraction has 5640 states and 8004 transitions. [2022-11-25 17:41:57,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 4 states have internal predecessors, (47), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-25 17:41:57,559 INFO L276 IsEmpty]: Start isEmpty. Operand 5640 states and 8004 transitions. [2022-11-25 17:41:57,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-11-25 17:41:57,564 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:41:57,564 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:41:57,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 17:41:57,565 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:41:57,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:41:57,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1507536712, now seen corresponding path program 1 times [2022-11-25 17:41:57,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:41:57,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254676525] [2022-11-25 17:41:57,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:41:57,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:41:57,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:58,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:41:58,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:58,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:41:58,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:58,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:41:58,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:58,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 17:41:58,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:58,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:41:58,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:58,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:41:58,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:58,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-25 17:41:58,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:58,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:41:58,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:58,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:41:58,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:58,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-25 17:41:58,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:58,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:41:58,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:58,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:41:58,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:58,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-25 17:41:58,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:58,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-25 17:41:58,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:58,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-25 17:41:58,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:58,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-25 17:41:58,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:58,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-25 17:41:58,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:58,214 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2022-11-25 17:41:58,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:41:58,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254676525] [2022-11-25 17:41:58,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254676525] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:41:58,215 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:41:58,215 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:41:58,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158602116] [2022-11-25 17:41:58,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:41:58,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 17:41:58,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:41:58,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 17:41:58,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:41:58,218 INFO L87 Difference]: Start difference. First operand 5640 states and 8004 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 4 states have internal predecessors, (49), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-25 17:42:06,755 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:42:08,764 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:42:09,952 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:42:13,270 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:42:15,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:42:15,795 INFO L93 Difference]: Finished difference Result 18685 states and 27124 transitions. [2022-11-25 17:42:15,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 17:42:15,796 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 4 states have internal predecessors, (49), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 123 [2022-11-25 17:42:15,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:42:15,886 INFO L225 Difference]: With dead ends: 18685 [2022-11-25 17:42:15,886 INFO L226 Difference]: Without dead ends: 13066 [2022-11-25 17:42:15,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2022-11-25 17:42:15,919 INFO L413 NwaCegarLoop]: 1665 mSDtfsCounter, 5289 mSDsluCounter, 4512 mSDsCounter, 0 mSdLazyCounter, 4694 mSolverCounterSat, 3473 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5506 SdHoareTripleChecker+Valid, 6177 SdHoareTripleChecker+Invalid, 8168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3473 IncrementalHoareTripleChecker+Valid, 4694 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.7s IncrementalHoareTripleChecker+Time [2022-11-25 17:42:15,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5506 Valid, 6177 Invalid, 8168 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3473 Valid, 4694 Invalid, 1 Unknown, 0 Unchecked, 16.7s Time] [2022-11-25 17:42:15,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13066 states. [2022-11-25 17:42:16,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13066 to 11263. [2022-11-25 17:42:16,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11263 states, 7762 states have (on average 1.3036588508116465) internal successors, (10119), 7966 states have internal predecessors, (10119), 2819 states have call successors, (2819), 650 states have call predecessors, (2819), 681 states have return successors, (3126), 2822 states have call predecessors, (3126), 2818 states have call successors, (3126) [2022-11-25 17:42:16,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11263 states to 11263 states and 16064 transitions. [2022-11-25 17:42:16,694 INFO L78 Accepts]: Start accepts. Automaton has 11263 states and 16064 transitions. Word has length 123 [2022-11-25 17:42:16,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:42:16,695 INFO L495 AbstractCegarLoop]: Abstraction has 11263 states and 16064 transitions. [2022-11-25 17:42:16,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 4 states have internal predecessors, (49), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-25 17:42:16,696 INFO L276 IsEmpty]: Start isEmpty. Operand 11263 states and 16064 transitions. [2022-11-25 17:42:16,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-11-25 17:42:16,701 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:42:16,701 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:42:16,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 17:42:16,701 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:42:16,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:42:16,702 INFO L85 PathProgramCache]: Analyzing trace with hash -1726246361, now seen corresponding path program 1 times [2022-11-25 17:42:16,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:42:16,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638142635] [2022-11-25 17:42:16,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:42:16,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:42:16,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:17,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:42:17,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:17,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:42:17,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:17,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:42:17,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:17,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 17:42:17,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:17,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:42:17,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:17,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:42:17,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:17,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-25 17:42:17,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:17,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:42:17,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:17,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:42:17,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:17,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-25 17:42:17,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:17,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:42:17,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:17,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:42:17,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:17,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-25 17:42:17,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:17,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-25 17:42:17,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:17,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-25 17:42:17,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:17,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-25 17:42:17,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:17,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-25 17:42:17,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:17,266 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2022-11-25 17:42:17,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:42:17,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638142635] [2022-11-25 17:42:17,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638142635] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:42:17,266 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:42:17,266 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:42:17,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106296597] [2022-11-25 17:42:17,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:42:17,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 17:42:17,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:42:17,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 17:42:17,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:42:17,268 INFO L87 Difference]: Start difference. First operand 11263 states and 16064 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 4 states have internal predecessors, (50), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-25 17:42:27,898 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:42:30,257 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:42:32,684 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:42:34,618 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:42:39,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:42:39,354 INFO L93 Difference]: Finished difference Result 36824 states and 53654 transitions. [2022-11-25 17:42:39,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 17:42:39,355 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 4 states have internal predecessors, (50), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 124 [2022-11-25 17:42:39,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:42:39,585 INFO L225 Difference]: With dead ends: 36824 [2022-11-25 17:42:39,585 INFO L226 Difference]: Without dead ends: 25582 [2022-11-25 17:42:39,647 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2022-11-25 17:42:39,649 INFO L413 NwaCegarLoop]: 1664 mSDtfsCounter, 4131 mSDsluCounter, 6067 mSDsCounter, 0 mSdLazyCounter, 6125 mSolverCounterSat, 2416 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4348 SdHoareTripleChecker+Valid, 7731 SdHoareTripleChecker+Invalid, 8542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2416 IncrementalHoareTripleChecker+Valid, 6125 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.6s IncrementalHoareTripleChecker+Time [2022-11-25 17:42:39,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4348 Valid, 7731 Invalid, 8542 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2416 Valid, 6125 Invalid, 1 Unknown, 0 Unchecked, 20.6s Time] [2022-11-25 17:42:39,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25582 states. [2022-11-25 17:42:41,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25582 to 22178. [2022-11-25 17:42:41,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22178 states, 15278 states have (on average 1.301348344024087) internal successors, (19882), 15670 states have internal predecessors, (19882), 5545 states have call successors, (5545), 1291 states have call predecessors, (5545), 1354 states have return successors, (6350), 5556 states have call predecessors, (6350), 5544 states have call successors, (6350) [2022-11-25 17:42:41,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22178 states to 22178 states and 31777 transitions. [2022-11-25 17:42:41,459 INFO L78 Accepts]: Start accepts. Automaton has 22178 states and 31777 transitions. Word has length 124 [2022-11-25 17:42:41,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:42:41,461 INFO L495 AbstractCegarLoop]: Abstraction has 22178 states and 31777 transitions. [2022-11-25 17:42:41,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 4 states have internal predecessors, (50), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-25 17:42:41,461 INFO L276 IsEmpty]: Start isEmpty. Operand 22178 states and 31777 transitions. [2022-11-25 17:42:41,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-11-25 17:42:41,466 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:42:41,466 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:42:41,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 17:42:41,467 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:42:41,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:42:41,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1814896603, now seen corresponding path program 1 times [2022-11-25 17:42:41,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:42:41,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656283872] [2022-11-25 17:42:41,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:42:41,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:42:41,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:42,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:42:42,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:42,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:42:42,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:42,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:42:42,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:42,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 17:42:42,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:42,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:42:42,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:42,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:42:42,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:42,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-25 17:42:42,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:42,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:42:42,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:42,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:42:42,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:42,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-25 17:42:42,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:42,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:42:42,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:42,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:42:42,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:42,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-25 17:42:42,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:42,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-25 17:42:42,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:42,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-25 17:42:42,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:42,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-25 17:42:42,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:42,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-25 17:42:42,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:42,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-25 17:42:42,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:42,378 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2022-11-25 17:42:42,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:42:42,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656283872] [2022-11-25 17:42:42,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656283872] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:42:42,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1403719567] [2022-11-25 17:42:42,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:42:42,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:42:42,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285c69d7-1b85-481c-9126-452ebad1e107/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:42:42,385 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285c69d7-1b85-481c-9126-452ebad1e107/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:42:42,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285c69d7-1b85-481c-9126-452ebad1e107/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 17:42:43,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:43,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 2148 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 17:42:43,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:42:43,407 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2022-11-25 17:42:43,407 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:42:43,407 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1403719567] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:42:43,408 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 17:42:43,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 16 [2022-11-25 17:42:43,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391168577] [2022-11-25 17:42:43,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:42:43,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 17:42:43,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:42:43,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 17:42:43,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-11-25 17:42:43,410 INFO L87 Difference]: Start difference. First operand 22178 states and 31777 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-25 17:42:44,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:42:44,883 INFO L93 Difference]: Finished difference Result 55430 states and 79557 transitions. [2022-11-25 17:42:44,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 17:42:44,884 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 134 [2022-11-25 17:42:44,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:42:45,088 INFO L225 Difference]: With dead ends: 55430 [2022-11-25 17:42:45,089 INFO L226 Difference]: Without dead ends: 33273 [2022-11-25 17:42:45,203 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=80, Invalid=426, Unknown=0, NotChecked=0, Total=506 [2022-11-25 17:42:45,205 INFO L413 NwaCegarLoop]: 3067 mSDtfsCounter, 1994 mSDsluCounter, 14201 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1998 SdHoareTripleChecker+Valid, 17268 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:42:45,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1998 Valid, 17268 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:42:45,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33273 states. [2022-11-25 17:42:47,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33273 to 33124. [2022-11-25 17:42:47,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33124 states, 22825 states have (on average 1.3015553121577217) internal successors, (29708), 23417 states have internal predecessors, (29708), 8267 states have call successors, (8267), 1928 states have call predecessors, (8267), 2031 states have return successors, (9658), 8282 states have call predecessors, (9658), 8266 states have call successors, (9658) [2022-11-25 17:42:47,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33124 states to 33124 states and 47633 transitions. [2022-11-25 17:42:47,775 INFO L78 Accepts]: Start accepts. Automaton has 33124 states and 47633 transitions. Word has length 134 [2022-11-25 17:42:47,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:42:47,775 INFO L495 AbstractCegarLoop]: Abstraction has 33124 states and 47633 transitions. [2022-11-25 17:42:47,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-25 17:42:47,776 INFO L276 IsEmpty]: Start isEmpty. Operand 33124 states and 47633 transitions. [2022-11-25 17:42:47,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-11-25 17:42:47,788 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:42:47,788 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:42:47,813 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285c69d7-1b85-481c-9126-452ebad1e107/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 17:42:48,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285c69d7-1b85-481c-9126-452ebad1e107/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-25 17:42:48,014 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:42:48,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:42:48,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1440923531, now seen corresponding path program 1 times [2022-11-25 17:42:48,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:42:48,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608013006] [2022-11-25 17:42:48,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:42:48,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:42:48,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:48,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:42:48,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:48,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:42:48,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:48,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:42:48,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:48,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 17:42:48,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:48,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:42:48,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:48,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:42:48,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:48,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-25 17:42:48,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:48,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:42:48,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:48,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:42:48,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:48,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-25 17:42:48,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:48,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:42:48,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:48,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:42:48,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:48,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-25 17:42:48,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:48,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-25 17:42:49,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:49,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-25 17:42:49,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:49,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-25 17:42:49,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:49,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-25 17:42:49,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:49,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-25 17:42:49,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:49,158 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2022-11-25 17:42:49,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:42:49,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608013006] [2022-11-25 17:42:49,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608013006] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:42:49,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [889799274] [2022-11-25 17:42:49,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:42:49,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:42:49,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285c69d7-1b85-481c-9126-452ebad1e107/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:42:49,163 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285c69d7-1b85-481c-9126-452ebad1e107/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:42:49,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285c69d7-1b85-481c-9126-452ebad1e107/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 17:42:50,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:50,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 2150 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 17:42:50,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:42:50,191 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2022-11-25 17:42:50,192 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:42:50,192 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [889799274] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:42:50,192 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 17:42:50,192 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 17 [2022-11-25 17:42:50,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702072344] [2022-11-25 17:42:50,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:42:50,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 17:42:50,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:42:50,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 17:42:50,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2022-11-25 17:42:50,195 INFO L87 Difference]: Start difference. First operand 33124 states and 47633 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-25 17:42:52,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:42:52,198 INFO L93 Difference]: Finished difference Result 77375 states and 111315 transitions. [2022-11-25 17:42:52,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 17:42:52,199 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 135 [2022-11-25 17:42:52,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:42:52,442 INFO L225 Difference]: With dead ends: 77375 [2022-11-25 17:42:52,442 INFO L226 Difference]: Without dead ends: 44272 [2022-11-25 17:42:52,553 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=82, Invalid=470, Unknown=0, NotChecked=0, Total=552 [2022-11-25 17:42:52,554 INFO L413 NwaCegarLoop]: 3190 mSDtfsCounter, 1994 mSDsluCounter, 14681 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1998 SdHoareTripleChecker+Valid, 17871 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:42:52,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1998 Valid, 17871 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:42:52,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44272 states. [2022-11-25 17:42:55,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44272 to 44102. [2022-11-25 17:42:55,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44102 states, 30392 states have (on average 1.3014609107659911) internal successors, (39554), 31200 states have internal predecessors, (39554), 10989 states have call successors, (10989), 2565 states have call predecessors, (10989), 2720 states have return successors, (12978), 11004 states have call predecessors, (12978), 10988 states have call successors, (12978) [2022-11-25 17:42:55,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44102 states to 44102 states and 63521 transitions. [2022-11-25 17:42:55,517 INFO L78 Accepts]: Start accepts. Automaton has 44102 states and 63521 transitions. Word has length 135 [2022-11-25 17:42:55,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:42:55,518 INFO L495 AbstractCegarLoop]: Abstraction has 44102 states and 63521 transitions. [2022-11-25 17:42:55,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-25 17:42:55,518 INFO L276 IsEmpty]: Start isEmpty. Operand 44102 states and 63521 transitions. [2022-11-25 17:42:55,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-11-25 17:42:55,526 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:42:55,527 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:42:55,547 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285c69d7-1b85-481c-9126-452ebad1e107/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 17:42:55,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285c69d7-1b85-481c-9126-452ebad1e107/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:42:55,737 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:42:55,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:42:55,737 INFO L85 PathProgramCache]: Analyzing trace with hash -895711060, now seen corresponding path program 1 times [2022-11-25 17:42:55,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:42:55,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298715192] [2022-11-25 17:42:55,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:42:55,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:42:55,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:56,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:42:56,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:56,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:42:56,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:56,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:42:56,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:56,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 17:42:56,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:56,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:42:56,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:56,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:42:56,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:56,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-25 17:42:56,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:56,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:42:56,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:56,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:42:56,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:56,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-25 17:42:56,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:56,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:42:56,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:56,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:42:56,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:56,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-25 17:42:56,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:56,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-25 17:42:56,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:56,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-25 17:42:56,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:56,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-25 17:42:56,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:56,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-25 17:42:56,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:56,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-25 17:42:56,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:56,648 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2022-11-25 17:42:56,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:42:56,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298715192] [2022-11-25 17:42:56,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298715192] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:42:56,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1099471510] [2022-11-25 17:42:56,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:42:56,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:42:56,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285c69d7-1b85-481c-9126-452ebad1e107/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:42:56,651 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285c69d7-1b85-481c-9126-452ebad1e107/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:42:56,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285c69d7-1b85-481c-9126-452ebad1e107/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 17:42:57,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:42:57,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 2152 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 17:42:57,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:42:57,657 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2022-11-25 17:42:57,658 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:42:57,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1099471510] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:42:57,658 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 17:42:57,658 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 17 [2022-11-25 17:42:57,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118504881] [2022-11-25 17:42:57,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:42:57,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 17:42:57,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:42:57,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 17:42:57,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2022-11-25 17:42:57,661 INFO L87 Difference]: Start difference. First operand 44102 states and 63521 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-25 17:43:00,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:43:00,179 INFO L93 Difference]: Finished difference Result 99320 states and 143073 transitions. [2022-11-25 17:43:00,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 17:43:00,179 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 136 [2022-11-25 17:43:00,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:43:00,714 INFO L225 Difference]: With dead ends: 99320 [2022-11-25 17:43:00,714 INFO L226 Difference]: Without dead ends: 55239 [2022-11-25 17:43:00,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=82, Invalid=470, Unknown=0, NotChecked=0, Total=552 [2022-11-25 17:43:00,888 INFO L413 NwaCegarLoop]: 3195 mSDtfsCounter, 1994 mSDsluCounter, 14701 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1998 SdHoareTripleChecker+Valid, 17896 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:43:00,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1998 Valid, 17896 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:43:00,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55239 states. [2022-11-25 17:43:03,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55239 to 44124. [2022-11-25 17:43:03,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44124 states, 30408 states have (on average 1.3013022888713497) internal successors, (39570), 31218 states have internal predecessors, (39570), 10989 states have call successors, (10989), 2565 states have call predecessors, (10989), 2726 states have return successors, (12987), 11008 states have call predecessors, (12987), 10988 states have call successors, (12987) [2022-11-25 17:43:03,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44124 states to 44124 states and 63546 transitions. [2022-11-25 17:43:03,685 INFO L78 Accepts]: Start accepts. Automaton has 44124 states and 63546 transitions. Word has length 136 [2022-11-25 17:43:03,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:43:03,686 INFO L495 AbstractCegarLoop]: Abstraction has 44124 states and 63546 transitions. [2022-11-25 17:43:03,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-25 17:43:03,686 INFO L276 IsEmpty]: Start isEmpty. Operand 44124 states and 63546 transitions. [2022-11-25 17:43:03,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-11-25 17:43:03,696 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:43:03,696 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:43:03,711 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285c69d7-1b85-481c-9126-452ebad1e107/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 17:43:03,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285c69d7-1b85-481c-9126-452ebad1e107/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:43:03,905 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:43:03,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:43:03,906 INFO L85 PathProgramCache]: Analyzing trace with hash -504782990, now seen corresponding path program 1 times [2022-11-25 17:43:03,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:43:03,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738344367] [2022-11-25 17:43:03,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:43:03,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:43:03,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:43:04,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:43:04,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:43:04,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:43:04,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:43:04,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:43:04,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:43:04,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 17:43:04,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:43:04,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:43:04,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:43:04,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:43:04,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:43:04,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-25 17:43:04,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:43:04,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:43:04,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:43:04,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:43:04,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:43:04,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-25 17:43:04,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:43:04,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:43:04,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:43:04,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:43:04,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:43:04,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-25 17:43:04,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:43:04,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-25 17:43:04,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:43:04,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-25 17:43:04,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:43:04,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-25 17:43:04,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:43:04,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-25 17:43:04,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:43:04,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-11-25 17:43:04,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:43:04,640 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2022-11-25 17:43:04,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:43:04,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738344367] [2022-11-25 17:43:04,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738344367] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:43:04,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [351671578] [2022-11-25 17:43:04,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:43:04,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:43:04,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285c69d7-1b85-481c-9126-452ebad1e107/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:43:04,643 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285c69d7-1b85-481c-9126-452ebad1e107/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:43:04,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285c69d7-1b85-481c-9126-452ebad1e107/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 17:43:05,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:43:05,800 INFO L263 TraceCheckSpWp]: Trace formula consists of 2154 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 17:43:05,807 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:43:05,941 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2022-11-25 17:43:05,943 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:43:05,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [351671578] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:43:05,944 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 17:43:05,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 17 [2022-11-25 17:43:05,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119309472] [2022-11-25 17:43:05,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:43:05,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 17:43:05,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:43:05,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 17:43:05,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2022-11-25 17:43:05,947 INFO L87 Difference]: Start difference. First operand 44124 states and 63546 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-25 17:43:08,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:43:08,541 INFO L93 Difference]: Finished difference Result 99350 states and 143106 transitions. [2022-11-25 17:43:08,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 17:43:08,541 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 137 [2022-11-25 17:43:08,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:43:08,838 INFO L225 Difference]: With dead ends: 99350 [2022-11-25 17:43:08,838 INFO L226 Difference]: Without dead ends: 55247 [2022-11-25 17:43:09,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=82, Invalid=470, Unknown=0, NotChecked=0, Total=552 [2022-11-25 17:43:09,244 INFO L413 NwaCegarLoop]: 3190 mSDtfsCounter, 1994 mSDsluCounter, 14681 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1998 SdHoareTripleChecker+Valid, 17871 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:43:09,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1998 Valid, 17871 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:43:09,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55247 states. [2022-11-25 17:43:11,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55247 to 44137. [2022-11-25 17:43:11,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44137 states, 30418 states have (on average 1.3012032349266882) internal successors, (39580), 31227 states have internal predecessors, (39580), 10989 states have call successors, (10989), 2565 states have call predecessors, (10989), 2729 states have return successors, (12990), 11012 states have call predecessors, (12990), 10988 states have call successors, (12990) [2022-11-25 17:43:11,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44137 states to 44137 states and 63559 transitions. [2022-11-25 17:43:11,596 INFO L78 Accepts]: Start accepts. Automaton has 44137 states and 63559 transitions. Word has length 137 [2022-11-25 17:43:11,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:43:11,596 INFO L495 AbstractCegarLoop]: Abstraction has 44137 states and 63559 transitions. [2022-11-25 17:43:11,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-25 17:43:11,597 INFO L276 IsEmpty]: Start isEmpty. Operand 44137 states and 63559 transitions. [2022-11-25 17:43:11,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-11-25 17:43:11,608 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:43:11,609 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2022-11-25 17:43:11,623 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285c69d7-1b85-481c-9126-452ebad1e107/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 17:43:11,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285c69d7-1b85-481c-9126-452ebad1e107/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-25 17:43:11,818 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:43:11,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:43:11,819 INFO L85 PathProgramCache]: Analyzing trace with hash -219269756, now seen corresponding path program 1 times [2022-11-25 17:43:11,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:43:11,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929064658] [2022-11-25 17:43:11,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:43:11,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:43:11,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:43:12,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:43:12,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:43:12,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:43:12,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:43:12,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:43:12,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:43:12,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 17:43:12,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:43:12,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:43:12,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:43:12,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:43:12,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:43:12,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-25 17:43:12,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:43:12,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:43:12,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:43:12,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:43:12,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:43:12,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-25 17:43:12,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:43:12,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:43:12,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:43:12,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:43:12,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:43:12,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-25 17:43:12,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:43:12,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-25 17:43:12,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:43:12,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-25 17:43:12,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:43:12,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:43:12,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:43:12,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:43:12,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:43:12,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-25 17:43:12,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:43:12,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-25 17:43:12,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:43:12,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-25 17:43:12,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:43:12,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-25 17:43:12,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:43:12,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-25 17:43:12,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:43:12,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-11-25 17:43:12,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:43:12,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-25 17:43:12,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:43:12,599 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2022-11-25 17:43:12,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:43:12,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929064658] [2022-11-25 17:43:12,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929064658] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:43:12,606 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:43:12,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 17:43:12,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971277454] [2022-11-25 17:43:12,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:43:12,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:43:12,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:43:12,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:43:12,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:43:12,608 INFO L87 Difference]: Start difference. First operand 44137 states and 63559 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-25 17:43:21,753 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:43:24,876 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:43:26,884 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:43:27,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:43:27,544 INFO L93 Difference]: Finished difference Result 61707 states and 88679 transitions. [2022-11-25 17:43:27,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 17:43:27,545 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 157 [2022-11-25 17:43:27,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:43:27,746 INFO L225 Difference]: With dead ends: 61707 [2022-11-25 17:43:27,746 INFO L226 Difference]: Without dead ends: 61704 [2022-11-25 17:43:27,768 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-25 17:43:27,768 INFO L413 NwaCegarLoop]: 1545 mSDtfsCounter, 2613 mSDsluCounter, 2071 mSDsCounter, 0 mSdLazyCounter, 2322 mSolverCounterSat, 1462 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2762 SdHoareTripleChecker+Valid, 3616 SdHoareTripleChecker+Invalid, 3786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1462 IncrementalHoareTripleChecker+Valid, 2322 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2022-11-25 17:43:27,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2762 Valid, 3616 Invalid, 3786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1462 Valid, 2322 Invalid, 2 Unknown, 0 Unchecked, 12.3s Time] [2022-11-25 17:43:27,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61704 states. [2022-11-25 17:43:30,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61704 to 54679. [2022-11-25 17:43:30,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54679 states, 37124 states have (on average 1.284479043206551) internal successors, (47685), 37962 states have internal predecessors, (47685), 13768 states have call successors, (13768), 3622 states have call predecessors, (13768), 3786 states have return successors, (15769), 13791 states have call predecessors, (15769), 13767 states have call successors, (15769) [2022-11-25 17:43:30,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54679 states to 54679 states and 77222 transitions. [2022-11-25 17:43:30,599 INFO L78 Accepts]: Start accepts. Automaton has 54679 states and 77222 transitions. Word has length 157 [2022-11-25 17:43:30,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:43:30,600 INFO L495 AbstractCegarLoop]: Abstraction has 54679 states and 77222 transitions. [2022-11-25 17:43:30,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-25 17:43:30,600 INFO L276 IsEmpty]: Start isEmpty. Operand 54679 states and 77222 transitions. [2022-11-25 17:43:30,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-11-25 17:43:30,628 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:43:30,629 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:43:30,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-25 17:43:30,629 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:43:30,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:43:30,630 INFO L85 PathProgramCache]: Analyzing trace with hash 913868496, now seen corresponding path program 1 times [2022-11-25 17:43:30,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:43:30,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315392543] [2022-11-25 17:43:30,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:43:30,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:43:30,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:43:31,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:43:31,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:43:31,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:43:31,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:43:31,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:43:31,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:43:31,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 17:43:31,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:43:31,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:43:31,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:43:31,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:43:31,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:43:31,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-25 17:43:31,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:43:31,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:43:31,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:43:31,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:43:31,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:43:31,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-25 17:43:31,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:43:31,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:43:31,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:43:31,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:43:31,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:43:31,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-25 17:43:31,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:43:31,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-25 17:43:31,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:43:31,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-25 17:43:31,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:43:31,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-25 17:43:31,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:43:31,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-11-25 17:43:31,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:43:31,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-25 17:43:31,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:43:31,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-11-25 17:43:31,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:43:31,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-25 17:43:31,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:43:31,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:43:31,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:43:31,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-11-25 17:43:31,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:43:31,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-11-25 17:43:31,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:43:31,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-11-25 17:43:31,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:43:31,579 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 19 proven. 8 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-11-25 17:43:31,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:43:31,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315392543] [2022-11-25 17:43:31,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315392543] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:43:31,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [767276626] [2022-11-25 17:43:31,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:43:31,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:43:31,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285c69d7-1b85-481c-9126-452ebad1e107/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:43:31,582 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285c69d7-1b85-481c-9126-452ebad1e107/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:43:31,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285c69d7-1b85-481c-9126-452ebad1e107/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 17:43:32,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:43:32,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 2393 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-25 17:43:32,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:43:33,012 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-11-25 17:43:33,012 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:43:33,443 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2022-11-25 17:43:33,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [767276626] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:43:33,444 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:43:33,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10, 10] total 24 [2022-11-25 17:43:33,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976720028] [2022-11-25 17:43:33,445 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:43:33,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-25 17:43:33,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:43:33,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-25 17:43:33,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=488, Unknown=0, NotChecked=0, Total=552 [2022-11-25 17:43:33,447 INFO L87 Difference]: Start difference. First operand 54679 states and 77222 transitions. Second operand has 24 states, 24 states have (on average 6.5) internal successors, (156), 15 states have internal predecessors, (156), 5 states have call successors, (43), 9 states have call predecessors, (43), 7 states have return successors, (35), 6 states have call predecessors, (35), 5 states have call successors, (35) [2022-11-25 17:44:45,801 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:44:49,644 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:44:52,923 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:44:55,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:44:56,802 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:44:58,894 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:45:18,388 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:45:20,399 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:45:26,666 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:45:27,789 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:45:29,797 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:45:31,804 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:45:35,226 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:45:41,020 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:45:44,345 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:45:47,041 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:45:57,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:45:57,252 INFO L93 Difference]: Finished difference Result 162331 states and 232327 transitions. [2022-11-25 17:45:57,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-11-25 17:45:57,253 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 6.5) internal successors, (156), 15 states have internal predecessors, (156), 5 states have call successors, (43), 9 states have call predecessors, (43), 7 states have return successors, (35), 6 states have call predecessors, (35), 5 states have call successors, (35) Word has length 183 [2022-11-25 17:45:57,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:45:57,977 INFO L225 Difference]: With dead ends: 162331 [2022-11-25 17:45:57,977 INFO L226 Difference]: Without dead ends: 107477 [2022-11-25 17:45:58,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 562 GetRequests, 413 SyntacticMatches, 8 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7673 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=3129, Invalid=17177, Unknown=0, NotChecked=0, Total=20306 [2022-11-25 17:45:58,142 INFO L413 NwaCegarLoop]: 2277 mSDtfsCounter, 21254 mSDsluCounter, 20749 mSDsCounter, 0 mSdLazyCounter, 66851 mSolverCounterSat, 17803 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 117.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21739 SdHoareTripleChecker+Valid, 23026 SdHoareTripleChecker+Invalid, 84659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.5s SdHoareTripleChecker+Time, 17803 IncrementalHoareTripleChecker+Valid, 66851 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 125.2s IncrementalHoareTripleChecker+Time [2022-11-25 17:45:58,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21739 Valid, 23026 Invalid, 84659 Unknown, 0 Unchecked, 0.5s Time], IncrementalHoareTripleChecker [17803 Valid, 66851 Invalid, 5 Unknown, 0 Unchecked, 125.2s Time] [2022-11-25 17:45:58,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107477 states. [2022-11-25 17:46:06,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107477 to 94212. [2022-11-25 17:46:06,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94212 states, 63913 states have (on average 1.2833226417160828) internal successors, (82021), 65341 states have internal predecessors, (82021), 23793 states have call successors, (23793), 6255 states have call predecessors, (23793), 6505 states have return successors, (27018), 23799 states have call predecessors, (27018), 23792 states have call successors, (27018) [2022-11-25 17:46:07,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94212 states to 94212 states and 132832 transitions. [2022-11-25 17:46:07,116 INFO L78 Accepts]: Start accepts. Automaton has 94212 states and 132832 transitions. Word has length 183 [2022-11-25 17:46:07,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:46:07,117 INFO L495 AbstractCegarLoop]: Abstraction has 94212 states and 132832 transitions. [2022-11-25 17:46:07,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 6.5) internal successors, (156), 15 states have internal predecessors, (156), 5 states have call successors, (43), 9 states have call predecessors, (43), 7 states have return successors, (35), 6 states have call predecessors, (35), 5 states have call successors, (35) [2022-11-25 17:46:07,117 INFO L276 IsEmpty]: Start isEmpty. Operand 94212 states and 132832 transitions. [2022-11-25 17:46:07,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-11-25 17:46:07,151 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:46:07,152 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:46:07,170 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285c69d7-1b85-481c-9126-452ebad1e107/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-25 17:46:07,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285c69d7-1b85-481c-9126-452ebad1e107/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:46:07,370 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:46:07,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:46:07,371 INFO L85 PathProgramCache]: Analyzing trace with hash -270980623, now seen corresponding path program 1 times [2022-11-25 17:46:07,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:46:07,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252158373] [2022-11-25 17:46:07,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:46:07,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:46:07,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:46:08,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:46:08,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:46:08,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:46:08,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:46:08,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:46:08,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:46:08,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 17:46:08,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:46:08,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:46:08,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:46:08,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:46:08,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:46:08,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-25 17:46:08,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:46:08,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:46:08,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:46:08,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:46:08,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:46:08,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-25 17:46:08,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:46:08,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:46:08,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:46:08,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:46:08,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:46:08,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-25 17:46:08,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:46:08,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-25 17:46:08,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:46:08,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-25 17:46:08,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:46:08,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-25 17:46:08,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:46:08,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-25 17:46:08,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:46:08,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-11-25 17:46:08,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:46:08,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-25 17:46:08,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:46:08,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-11-25 17:46:08,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:46:08,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:46:08,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:46:08,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-25 17:46:08,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:46:08,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-11-25 17:46:08,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:46:08,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-11-25 17:46:08,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:46:08,881 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 19 proven. 8 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-11-25 17:46:08,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:46:08,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252158373] [2022-11-25 17:46:08,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252158373] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:46:08,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1259678779] [2022-11-25 17:46:08,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:46:08,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:46:08,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285c69d7-1b85-481c-9126-452ebad1e107/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:46:08,884 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285c69d7-1b85-481c-9126-452ebad1e107/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:46:08,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285c69d7-1b85-481c-9126-452ebad1e107/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-25 17:46:10,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:46:10,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 2395 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-25 17:46:10,117 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:46:10,390 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-11-25 17:46:10,390 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:46:10,923 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2022-11-25 17:46:10,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1259678779] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:46:10,924 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:46:10,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10, 10] total 24 [2022-11-25 17:46:10,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046717942] [2022-11-25 17:46:10,925 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:46:10,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-25 17:46:10,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:46:10,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-25 17:46:10,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=488, Unknown=0, NotChecked=0, Total=552 [2022-11-25 17:46:10,928 INFO L87 Difference]: Start difference. First operand 94212 states and 132832 transitions. Second operand has 24 states, 24 states have (on average 6.583333333333333) internal successors, (158), 15 states have internal predecessors, (158), 5 states have call successors, (43), 9 states have call predecessors, (43), 7 states have return successors, (35), 6 states have call predecessors, (35), 5 states have call successors, (35)