./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-can-usb-ems_usb.ko.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_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/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_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-can-usb-ems_usb.ko.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/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_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/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 01d4ebb86f2bde0df0d47bbd5d9b632b620f2501e68770553e85fb2bb5a7d15a --- 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 16:51:08,448 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 16:51:08,451 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 16:51:08,492 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 16:51:08,493 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 16:51:08,497 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 16:51:08,500 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 16:51:08,501 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 16:51:08,503 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 16:51:08,504 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 16:51:08,505 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 16:51:08,506 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 16:51:08,507 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 16:51:08,508 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 16:51:08,509 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 16:51:08,513 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 16:51:08,515 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 16:51:08,521 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 16:51:08,523 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 16:51:08,531 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 16:51:08,534 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 16:51:08,537 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 16:51:08,539 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 16:51:08,540 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 16:51:08,550 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 16:51:08,551 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 16:51:08,551 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 16:51:08,553 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 16:51:08,553 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 16:51:08,554 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 16:51:08,555 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 16:51:08,555 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 16:51:08,557 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 16:51:08,559 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 16:51:08,560 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 16:51:08,560 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 16:51:08,561 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 16:51:08,561 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 16:51:08,561 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 16:51:08,562 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 16:51:08,563 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 16:51:08,564 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-25 16:51:08,603 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 16:51:08,603 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 16:51:08,604 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 16:51:08,604 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 16:51:08,604 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 16:51:08,605 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 16:51:08,605 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 16:51:08,605 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 16:51:08,606 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 16:51:08,606 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 16:51:08,606 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 16:51:08,606 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 16:51:08,606 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 16:51:08,606 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 16:51:08,607 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 16:51:08,607 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 16:51:08,607 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 16:51:08,607 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 16:51:08,607 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 16:51:08,608 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 16:51:08,608 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 16:51:08,608 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 16:51:08,608 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 16:51:08,608 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 16:51:08,609 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 16:51:08,609 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 16:51:08,609 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 16:51:08,609 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 16:51:08,609 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 16:51:08,609 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 16:51:08,610 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 16:51:08,610 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_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 01d4ebb86f2bde0df0d47bbd5d9b632b620f2501e68770553e85fb2bb5a7d15a [2022-11-25 16:51:08,990 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 16:51:09,028 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 16:51:09,031 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 16:51:09,033 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 16:51:09,033 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 16:51:09,035 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-can-usb-ems_usb.ko.cil.out.i [2022-11-25 16:51:12,106 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 16:51:12,664 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 16:51:12,665 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-can-usb-ems_usb.ko.cil.out.i [2022-11-25 16:51:12,699 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/data/294f52036/2bb40ebe69ba461f9caaedb3c3877ce6/FLAG18ce9d824 [2022-11-25 16:51:13,216 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/data/294f52036/2bb40ebe69ba461f9caaedb3c3877ce6 [2022-11-25 16:51:13,218 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 16:51:13,220 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 16:51:13,224 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 16:51:13,224 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 16:51:13,228 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 16:51:13,229 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:51:13" (1/1) ... [2022-11-25 16:51:13,230 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1895ead4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:51:13, skipping insertion in model container [2022-11-25 16:51:13,231 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:51:13" (1/1) ... [2022-11-25 16:51:13,239 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 16:51:13,354 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 16:51:13,984 WARN L623 FunctionHandler]: Unknown extern function __kmalloc [2022-11-25 16:51:14,119 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-11-25 16:51:14,124 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-11-25 16:51:14,139 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 16:51:14,143 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 16:51:14,207 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-11-25 16:51:14,216 WARN L623 FunctionHandler]: Unknown extern function dev_set_drvdata [2022-11-25 16:51:14,238 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-11-25 16:51:14,258 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-11-25 16:51:14,261 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 16:51:14,363 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-25 16:51:14,464 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 16:51:14,465 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-11-25 16:51:14,466 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-25 16:51:14,467 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 16:51:14,475 WARN L623 FunctionHandler]: Unknown extern function alloc_can_skb [2022-11-25 16:51:14,488 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-11-25 16:51:14,502 WARN L623 FunctionHandler]: Unknown extern function alloc_can_err_skb [2022-11-25 16:51:14,506 WARN L623 FunctionHandler]: Unknown extern function can_bus_off [2022-11-25 16:51:14,537 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-11-25 16:51:14,546 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 16:51:14,550 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 16:51:14,558 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-11-25 16:51:14,558 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-25 16:51:14,560 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 16:51:14,571 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 16:51:14,576 WARN L623 FunctionHandler]: Unknown extern function can_get_echo_skb [2022-11-25 16:51:14,591 WARN L623 FunctionHandler]: Unknown extern function usb_bulk_msg [2022-11-25 16:51:14,624 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 16:51:14,635 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 16:51:14,637 WARN L623 FunctionHandler]: Unknown extern function usb_anchor_urb [2022-11-25 16:51:14,640 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-11-25 16:51:14,641 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-25 16:51:14,641 WARN L623 FunctionHandler]: Unknown extern function usb_unanchor_urb [2022-11-25 16:51:14,675 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 16:51:14,675 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 16:51:14,677 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-11-25 16:51:14,677 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-25 16:51:14,677 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 16:51:14,679 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-25 16:51:14,680 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 16:51:14,693 WARN L623 FunctionHandler]: Unknown extern function usb_unlink_urb [2022-11-25 16:51:14,693 WARN L623 FunctionHandler]: Unknown extern function usb_kill_anchored_urbs [2022-11-25 16:51:14,694 WARN L623 FunctionHandler]: Unknown extern function usb_kill_anchored_urbs [2022-11-25 16:51:14,702 WARN L623 FunctionHandler]: Unknown extern function open_candev [2022-11-25 16:51:14,703 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-25 16:51:14,703 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 16:51:14,704 WARN L623 FunctionHandler]: Unknown extern function close_candev [2022-11-25 16:51:14,727 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 16:51:14,728 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 16:51:14,734 WARN L623 FunctionHandler]: Unknown extern function usb_unanchor_urb [2022-11-25 16:51:14,734 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 16:51:14,736 WARN L623 FunctionHandler]: Unknown extern function usb_anchor_urb [2022-11-25 16:51:14,736 WARN L623 FunctionHandler]: Unknown extern function can_put_echo_skb [2022-11-25 16:51:14,740 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-11-25 16:51:14,741 WARN L623 FunctionHandler]: Unknown extern function can_free_echo_skb [2022-11-25 16:51:14,742 WARN L623 FunctionHandler]: Unknown extern function usb_unanchor_urb [2022-11-25 16:51:14,742 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 16:51:14,743 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-25 16:51:14,744 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 16:51:14,746 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 16:51:14,753 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 16:51:14,754 WARN L623 FunctionHandler]: Unknown extern function close_candev [2022-11-25 16:51:14,777 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 16:51:14,789 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 16:51:14,808 WARN L623 FunctionHandler]: Unknown extern function alloc_candev [2022-11-25 16:51:14,809 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 16:51:14,812 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 16:51:14,823 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 16:51:14,824 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 16:51:14,825 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 16:51:14,826 WARN L623 FunctionHandler]: Unknown extern function register_candev [2022-11-25 16:51:14,826 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 16:51:14,827 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 16:51:14,828 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 16:51:14,828 WARN L623 FunctionHandler]: Unknown extern function free_candev [2022-11-25 16:51:14,838 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-11-25 16:51:14,839 WARN L623 FunctionHandler]: Unknown extern function free_candev [2022-11-25 16:51:14,839 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 16:51:14,849 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 16:51:14,850 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 16:51:14,855 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-11-25 16:51:14,879 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-11-25 16:51:14,883 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-11-25 16:51:14,884 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-11-25 16:51:14,885 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-11-25 16:51:14,890 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_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-can-usb-ems_usb.ko.cil.out.i[191320,191333] [2022-11-25 16:51:14,904 WARN L623 FunctionHandler]: Unknown extern function ldv_undefined_pointer [2022-11-25 16:51:14,909 WARN L623 FunctionHandler]: Unknown extern function ldv_undefined_pointer [2022-11-25 16:51:14,938 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 16:51:14,984 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 16:51:15,096 WARN L623 FunctionHandler]: Unknown extern function __kmalloc [2022-11-25 16:51:15,100 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-11-25 16:51:15,101 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-11-25 16:51:15,102 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 16:51:15,104 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 16:51:15,106 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-11-25 16:51:15,108 WARN L623 FunctionHandler]: Unknown extern function dev_set_drvdata [2022-11-25 16:51:15,114 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-11-25 16:51:15,116 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-11-25 16:51:15,117 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 16:51:15,132 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-25 16:51:15,144 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 16:51:15,147 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-11-25 16:51:15,147 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-25 16:51:15,148 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 16:51:15,151 WARN L623 FunctionHandler]: Unknown extern function alloc_can_skb [2022-11-25 16:51:15,155 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-11-25 16:51:15,157 WARN L623 FunctionHandler]: Unknown extern function alloc_can_err_skb [2022-11-25 16:51:15,161 WARN L623 FunctionHandler]: Unknown extern function can_bus_off [2022-11-25 16:51:15,171 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-11-25 16:51:15,173 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 16:51:15,177 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 16:51:15,180 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-11-25 16:51:15,180 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-25 16:51:15,180 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 16:51:15,201 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 16:51:15,203 WARN L623 FunctionHandler]: Unknown extern function can_get_echo_skb [2022-11-25 16:51:15,205 WARN L623 FunctionHandler]: Unknown extern function usb_bulk_msg [2022-11-25 16:51:15,208 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 16:51:15,247 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 16:51:15,249 WARN L623 FunctionHandler]: Unknown extern function usb_anchor_urb [2022-11-25 16:51:15,249 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-11-25 16:51:15,250 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-25 16:51:15,250 WARN L623 FunctionHandler]: Unknown extern function usb_unanchor_urb [2022-11-25 16:51:15,250 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 16:51:15,252 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 16:51:15,253 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-11-25 16:51:15,256 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-25 16:51:15,256 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 16:51:15,259 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-25 16:51:15,259 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 16:51:15,261 WARN L623 FunctionHandler]: Unknown extern function usb_unlink_urb [2022-11-25 16:51:15,261 WARN L623 FunctionHandler]: Unknown extern function usb_kill_anchored_urbs [2022-11-25 16:51:15,262 WARN L623 FunctionHandler]: Unknown extern function usb_kill_anchored_urbs [2022-11-25 16:51:15,263 WARN L623 FunctionHandler]: Unknown extern function open_candev [2022-11-25 16:51:15,264 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-25 16:51:15,264 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 16:51:15,266 WARN L623 FunctionHandler]: Unknown extern function close_candev [2022-11-25 16:51:15,268 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 16:51:15,270 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 16:51:15,275 WARN L623 FunctionHandler]: Unknown extern function usb_unanchor_urb [2022-11-25 16:51:15,276 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 16:51:15,281 WARN L623 FunctionHandler]: Unknown extern function usb_anchor_urb [2022-11-25 16:51:15,282 WARN L623 FunctionHandler]: Unknown extern function can_put_echo_skb [2022-11-25 16:51:15,282 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-11-25 16:51:15,282 WARN L623 FunctionHandler]: Unknown extern function can_free_echo_skb [2022-11-25 16:51:15,283 WARN L623 FunctionHandler]: Unknown extern function usb_unanchor_urb [2022-11-25 16:51:15,283 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 16:51:15,284 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-25 16:51:15,284 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 16:51:15,286 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 16:51:15,289 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 16:51:15,293 WARN L623 FunctionHandler]: Unknown extern function close_candev [2022-11-25 16:51:15,297 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 16:51:15,300 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 16:51:15,304 WARN L623 FunctionHandler]: Unknown extern function alloc_candev [2022-11-25 16:51:15,305 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 16:51:15,310 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 16:51:15,311 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 16:51:15,312 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 16:51:15,314 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 16:51:15,322 WARN L623 FunctionHandler]: Unknown extern function register_candev [2022-11-25 16:51:15,323 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 16:51:15,324 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 16:51:15,324 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 16:51:15,325 WARN L623 FunctionHandler]: Unknown extern function free_candev [2022-11-25 16:51:15,325 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-11-25 16:51:15,326 WARN L623 FunctionHandler]: Unknown extern function free_candev [2022-11-25 16:51:15,326 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 16:51:15,328 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 16:51:15,329 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 16:51:15,330 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-11-25 16:51:15,331 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-11-25 16:51:15,338 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-11-25 16:51:15,339 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-11-25 16:51:15,340 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-11-25 16:51:15,341 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_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-can-usb-ems_usb.ko.cil.out.i[191320,191333] [2022-11-25 16:51:15,342 WARN L623 FunctionHandler]: Unknown extern function ldv_undefined_pointer [2022-11-25 16:51:15,344 WARN L623 FunctionHandler]: Unknown extern function ldv_undefined_pointer [2022-11-25 16:51:15,366 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 16:51:15,605 INFO L208 MainTranslator]: Completed translation [2022-11-25 16:51:15,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:51:15 WrapperNode [2022-11-25 16:51:15,606 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 16:51:15,607 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 16:51:15,607 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 16:51:15,607 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 16:51:15,615 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:51:15" (1/1) ... [2022-11-25 16:51:15,681 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:51:15" (1/1) ... [2022-11-25 16:51:15,770 INFO L138 Inliner]: procedures = 133, calls = 749, calls flagged for inlining = 54, calls inlined = 44, statements flattened = 1391 [2022-11-25 16:51:15,771 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 16:51:15,771 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 16:51:15,771 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 16:51:15,772 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 16:51:15,781 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:51:15" (1/1) ... [2022-11-25 16:51:15,782 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:51:15" (1/1) ... [2022-11-25 16:51:15,791 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:51:15" (1/1) ... [2022-11-25 16:51:15,791 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:51:15" (1/1) ... [2022-11-25 16:51:15,831 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:51:15" (1/1) ... [2022-11-25 16:51:15,840 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:51:15" (1/1) ... [2022-11-25 16:51:15,847 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:51:15" (1/1) ... [2022-11-25 16:51:15,853 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:51:15" (1/1) ... [2022-11-25 16:51:15,863 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 16:51:15,864 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 16:51:15,864 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 16:51:15,865 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 16:51:15,865 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:51:15" (1/1) ... [2022-11-25 16:51:15,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 16:51:15,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:51:15,915 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 16:51:15,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 16:51:15,973 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-25 16:51:15,973 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-25 16:51:15,974 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_init [2022-11-25 16:51:15,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_init [2022-11-25 16:51:15,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-25 16:51:15,974 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2022-11-25 16:51:15,974 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2022-11-25 16:51:15,974 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-25 16:51:15,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-25 16:51:15,975 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 16:51:15,975 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-25 16:51:15,975 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-25 16:51:15,975 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_control_cmd [2022-11-25 16:51:15,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_control_cmd [2022-11-25 16:51:15,975 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-11-25 16:51:15,976 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-11-25 16:51:15,976 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-25 16:51:15,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-25 16:51:15,976 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_exit [2022-11-25 16:51:15,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_exit [2022-11-25 16:51:15,976 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_anchored_urbs [2022-11-25 16:51:15,976 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_anchored_urbs [2022-11-25 16:51:15,977 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-25 16:51:15,977 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-25 16:51:15,977 INFO L130 BoogieDeclarations]: Found specification of procedure init_usb_anchor [2022-11-25 16:51:15,977 INFO L138 BoogieDeclarations]: Found implementation of procedure init_usb_anchor [2022-11-25 16:51:15,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 16:51:15,977 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2022-11-25 16:51:15,977 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2022-11-25 16:51:15,978 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume_stop [2022-11-25 16:51:15,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume_stop [2022-11-25 16:51:15,978 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2022-11-25 16:51:15,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2022-11-25 16:51:15,978 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-25 16:51:15,978 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-25 16:51:15,978 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_command_msg [2022-11-25 16:51:15,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_command_msg [2022-11-25 16:51:15,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 16:51:15,979 INFO L130 BoogieDeclarations]: Found specification of procedure unlink_all_urbs [2022-11-25 16:51:15,979 INFO L138 BoogieDeclarations]: Found implementation of procedure unlink_all_urbs [2022-11-25 16:51:15,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 16:51:15,979 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-25 16:51:15,980 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-25 16:51:15,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 16:51:15,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 16:51:15,980 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_write_mode [2022-11-25 16:51:15,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_write_mode [2022-11-25 16:51:15,980 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2022-11-25 16:51:15,980 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2022-11-25 16:51:15,981 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2022-11-25 16:51:15,981 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2022-11-25 16:51:15,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 16:51:15,981 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-11-25 16:51:15,981 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-11-25 16:51:15,981 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-11-25 16:51:15,981 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-11-25 16:51:15,982 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2022-11-25 16:51:15,982 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2022-11-25 16:51:15,982 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2022-11-25 16:51:15,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2022-11-25 16:51:15,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 16:51:15,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-25 16:51:15,982 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-25 16:51:15,983 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-25 16:51:15,983 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-11-25 16:51:15,983 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-11-25 16:51:15,983 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-25 16:51:15,983 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-25 16:51:15,983 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2022-11-25 16:51:15,983 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2022-11-25 16:51:15,984 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-11-25 16:51:15,984 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-11-25 16:51:15,984 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-25 16:51:15,984 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-25 16:51:15,984 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_pointer [2022-11-25 16:51:15,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_pointer [2022-11-25 16:51:15,984 INFO L130 BoogieDeclarations]: Found specification of procedure close_candev [2022-11-25 16:51:15,985 INFO L138 BoogieDeclarations]: Found implementation of procedure close_candev [2022-11-25 16:51:15,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 16:51:15,985 INFO L130 BoogieDeclarations]: Found specification of procedure free_candev [2022-11-25 16:51:15,985 INFO L138 BoogieDeclarations]: Found implementation of procedure free_candev [2022-11-25 16:51:15,985 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2022-11-25 16:51:15,985 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2022-11-25 16:51:15,985 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-25 16:51:15,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 16:51:15,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 16:51:16,394 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 16:51:16,396 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 16:51:16,818 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_assume_stopFINAL: assume true; [2022-11-25 16:51:16,999 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-25 16:51:19,353 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##28: assume !false; [2022-11-25 16:51:19,353 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##27: assume false; [2022-11-25 16:51:19,405 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 16:51:19,419 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 16:51:19,423 INFO L300 CfgBuilder]: Removed 13 assume(true) statements. [2022-11-25 16:51:19,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:51:19 BoogieIcfgContainer [2022-11-25 16:51:19,429 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 16:51:19,432 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 16:51:19,432 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 16:51:19,435 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 16:51:19,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 04:51:13" (1/3) ... [2022-11-25 16:51:19,438 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46cf9bc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 04:51:19, skipping insertion in model container [2022-11-25 16:51:19,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:51:15" (2/3) ... [2022-11-25 16:51:19,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46cf9bc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 04:51:19, skipping insertion in model container [2022-11-25 16:51:19,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:51:19" (3/3) ... [2022-11-25 16:51:19,443 INFO L112 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-net-can-usb-ems_usb.ko.cil.out.i [2022-11-25 16:51:19,463 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 16:51:19,463 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 16:51:19,547 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 16:51:19,553 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;@68b587fb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 16:51:19,554 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 16:51:19,559 INFO L276 IsEmpty]: Start isEmpty. Operand has 431 states, 304 states have (on average 1.3519736842105263) internal successors, (411), 316 states have internal predecessors, (411), 91 states have call successors, (91), 35 states have call predecessors, (91), 34 states have return successors, (89), 87 states have call predecessors, (89), 89 states have call successors, (89) [2022-11-25 16:51:19,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-25 16:51:19,568 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:51:19,569 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:51:19,569 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:51:19,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:51:19,575 INFO L85 PathProgramCache]: Analyzing trace with hash -1517292025, now seen corresponding path program 1 times [2022-11-25 16:51:19,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:51:19,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472156447] [2022-11-25 16:51:19,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:51:19,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:51:19,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:20,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 16:51:20,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:20,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:51:20,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:51:20,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472156447] [2022-11-25 16:51:20,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472156447] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:51:20,261 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:51:20,261 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 16:51:20,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457622180] [2022-11-25 16:51:20,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:51:20,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 16:51:20,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:51:20,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 16:51:20,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:51:20,324 INFO L87 Difference]: Start difference. First operand has 431 states, 304 states have (on average 1.3519736842105263) internal successors, (411), 316 states have internal predecessors, (411), 91 states have call successors, (91), 35 states have call predecessors, (91), 34 states have return successors, (89), 87 states have call predecessors, (89), 89 states have call successors, (89) Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 16:51:20,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:51:20,544 INFO L93 Difference]: Finished difference Result 1253 states and 1768 transitions. [2022-11-25 16:51:20,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 16:51:20,547 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2022-11-25 16:51:20,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:51:20,565 INFO L225 Difference]: With dead ends: 1253 [2022-11-25 16:51:20,565 INFO L226 Difference]: Without dead ends: 824 [2022-11-25 16:51:20,572 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:51:20,575 INFO L413 NwaCegarLoop]: 695 mSDtfsCounter, 545 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 545 SdHoareTripleChecker+Valid, 1229 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 16:51:20,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [545 Valid, 1229 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 16:51:20,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 824 states. [2022-11-25 16:51:20,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 824 to 820. [2022-11-25 16:51:20,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 820 states, 581 states have (on average 1.2581755593803787) internal successors, (731), 593 states have internal predecessors, (731), 173 states have call successors, (173), 66 states have call predecessors, (173), 65 states have return successors, (172), 165 states have call predecessors, (172), 169 states have call successors, (172) [2022-11-25 16:51:20,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 820 states to 820 states and 1076 transitions. [2022-11-25 16:51:20,703 INFO L78 Accepts]: Start accepts. Automaton has 820 states and 1076 transitions. Word has length 16 [2022-11-25 16:51:20,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:51:20,704 INFO L495 AbstractCegarLoop]: Abstraction has 820 states and 1076 transitions. [2022-11-25 16:51:20,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 16:51:20,704 INFO L276 IsEmpty]: Start isEmpty. Operand 820 states and 1076 transitions. [2022-11-25 16:51:20,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-25 16:51:20,705 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:51:20,705 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:51:20,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 16:51:20,706 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:51:20,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:51:20,707 INFO L85 PathProgramCache]: Analyzing trace with hash 208359179, now seen corresponding path program 1 times [2022-11-25 16:51:20,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:51:20,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140967292] [2022-11-25 16:51:20,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:51:20,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:51:20,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:20,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 16:51:20,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:20,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:51:20,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:51:20,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140967292] [2022-11-25 16:51:20,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140967292] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:51:20,968 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:51:20,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 16:51:20,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758454833] [2022-11-25 16:51:20,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:51:20,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 16:51:20,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:51:20,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 16:51:20,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:51:20,974 INFO L87 Difference]: Start difference. First operand 820 states and 1076 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 16:51:21,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:51:21,138 INFO L93 Difference]: Finished difference Result 2433 states and 3207 transitions. [2022-11-25 16:51:21,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 16:51:21,139 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-11-25 16:51:21,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:51:21,150 INFO L225 Difference]: With dead ends: 2433 [2022-11-25 16:51:21,150 INFO L226 Difference]: Without dead ends: 1617 [2022-11-25 16:51:21,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:51:21,156 INFO L413 NwaCegarLoop]: 630 mSDtfsCounter, 535 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 535 SdHoareTripleChecker+Valid, 1161 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 16:51:21,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [535 Valid, 1161 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 16:51:21,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1617 states. [2022-11-25 16:51:21,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1617 to 1610. [2022-11-25 16:51:21,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1610 states, 1141 states have (on average 1.2541630148992111) internal successors, (1431), 1160 states have internal predecessors, (1431), 340 states have call successors, (340), 129 states have call predecessors, (340), 128 states have return successors, (346), 328 states have call predecessors, (346), 336 states have call successors, (346) [2022-11-25 16:51:21,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1610 states to 1610 states and 2117 transitions. [2022-11-25 16:51:21,276 INFO L78 Accepts]: Start accepts. Automaton has 1610 states and 2117 transitions. Word has length 17 [2022-11-25 16:51:21,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:51:21,276 INFO L495 AbstractCegarLoop]: Abstraction has 1610 states and 2117 transitions. [2022-11-25 16:51:21,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 16:51:21,277 INFO L276 IsEmpty]: Start isEmpty. Operand 1610 states and 2117 transitions. [2022-11-25 16:51:21,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-25 16:51:21,287 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:51:21,287 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-25 16:51:21,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 16:51:21,287 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:51:21,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:51:21,288 INFO L85 PathProgramCache]: Analyzing trace with hash 26582145, now seen corresponding path program 1 times [2022-11-25 16:51:21,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:51:21,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347633112] [2022-11-25 16:51:21,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:51:21,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:51:21,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:21,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 16:51:21,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:21,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-25 16:51:21,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:21,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-25 16:51:21,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:21,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-11-25 16:51:21,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:21,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-25 16:51:21,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:21,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 16:51:21,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:21,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 16:51:21,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:21,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-25 16:51:21,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:21,995 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 16:51:21,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:51:21,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347633112] [2022-11-25 16:51:21,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347633112] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:51:21,998 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:51:21,998 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 16:51:21,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592310651] [2022-11-25 16:51:21,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:51:21,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 16:51:22,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:51:22,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 16:51:22,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 16:51:22,001 INFO L87 Difference]: Start difference. First operand 1610 states and 2117 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-25 16:51:25,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:51:25,191 INFO L93 Difference]: Finished difference Result 3324 states and 4411 transitions. [2022-11-25 16:51:25,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 16:51:25,192 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 71 [2022-11-25 16:51:25,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:51:25,228 INFO L225 Difference]: With dead ends: 3324 [2022-11-25 16:51:25,228 INFO L226 Difference]: Without dead ends: 1722 [2022-11-25 16:51:25,232 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-25 16:51:25,234 INFO L413 NwaCegarLoop]: 406 mSDtfsCounter, 242 mSDsluCounter, 1438 mSDsCounter, 0 mSdLazyCounter, 1090 mSolverCounterSat, 198 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 1844 SdHoareTripleChecker+Invalid, 1288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 198 IncrementalHoareTripleChecker+Valid, 1090 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-11-25 16:51:25,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 1844 Invalid, 1288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [198 Valid, 1090 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-11-25 16:51:25,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1722 states. [2022-11-25 16:51:25,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1722 to 1610. [2022-11-25 16:51:25,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1610 states, 1141 states have (on average 1.2532865907099036) internal successors, (1430), 1160 states have internal predecessors, (1430), 340 states have call successors, (340), 129 states have call predecessors, (340), 128 states have return successors, (346), 328 states have call predecessors, (346), 336 states have call successors, (346) [2022-11-25 16:51:25,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1610 states to 1610 states and 2116 transitions. [2022-11-25 16:51:25,344 INFO L78 Accepts]: Start accepts. Automaton has 1610 states and 2116 transitions. Word has length 71 [2022-11-25 16:51:25,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:51:25,344 INFO L495 AbstractCegarLoop]: Abstraction has 1610 states and 2116 transitions. [2022-11-25 16:51:25,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-25 16:51:25,345 INFO L276 IsEmpty]: Start isEmpty. Operand 1610 states and 2116 transitions. [2022-11-25 16:51:25,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-25 16:51:25,347 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:51:25,347 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-25 16:51:25,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 16:51:25,348 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:51:25,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:51:25,348 INFO L85 PathProgramCache]: Analyzing trace with hash 2146869344, now seen corresponding path program 1 times [2022-11-25 16:51:25,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:51:25,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616154838] [2022-11-25 16:51:25,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:51:25,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:51:25,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:25,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 16:51:25,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:25,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-25 16:51:25,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:25,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-25 16:51:25,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:25,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-11-25 16:51:25,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:25,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-25 16:51:25,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:25,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 16:51:25,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:25,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 16:51:25,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:25,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-25 16:51:25,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:25,673 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 16:51:25,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:51:25,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616154838] [2022-11-25 16:51:25,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616154838] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:51:25,674 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:51:25,675 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 16:51:25,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006873240] [2022-11-25 16:51:25,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:51:25,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 16:51:25,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:51:25,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 16:51:25,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 16:51:25,677 INFO L87 Difference]: Start difference. First operand 1610 states and 2116 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-25 16:51:29,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:51:29,095 INFO L93 Difference]: Finished difference Result 4036 states and 5567 transitions. [2022-11-25 16:51:29,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 16:51:29,096 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 71 [2022-11-25 16:51:29,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:51:29,111 INFO L225 Difference]: With dead ends: 4036 [2022-11-25 16:51:29,111 INFO L226 Difference]: Without dead ends: 2437 [2022-11-25 16:51:29,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 16:51:29,118 INFO L413 NwaCegarLoop]: 484 mSDtfsCounter, 444 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 752 mSolverCounterSat, 301 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 518 SdHoareTripleChecker+Valid, 1254 SdHoareTripleChecker+Invalid, 1053 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 301 IncrementalHoareTripleChecker+Valid, 752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-25 16:51:29,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [518 Valid, 1254 Invalid, 1053 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [301 Valid, 752 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-11-25 16:51:29,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2437 states. [2022-11-25 16:51:29,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2437 to 2313. [2022-11-25 16:51:29,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2313 states, 1640 states have (on average 1.2939024390243903) internal successors, (2122), 1675 states have internal predecessors, (2122), 544 states have call successors, (544), 129 states have call predecessors, (544), 128 states have return successors, (558), 524 states have call predecessors, (558), 540 states have call successors, (558) [2022-11-25 16:51:29,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2313 states to 2313 states and 3224 transitions. [2022-11-25 16:51:29,270 INFO L78 Accepts]: Start accepts. Automaton has 2313 states and 3224 transitions. Word has length 71 [2022-11-25 16:51:29,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:51:29,272 INFO L495 AbstractCegarLoop]: Abstraction has 2313 states and 3224 transitions. [2022-11-25 16:51:29,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-25 16:51:29,272 INFO L276 IsEmpty]: Start isEmpty. Operand 2313 states and 3224 transitions. [2022-11-25 16:51:29,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-25 16:51:29,275 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:51:29,275 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-25 16:51:29,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 16:51:29,276 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:51:29,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:51:29,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1152569613, now seen corresponding path program 1 times [2022-11-25 16:51:29,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:51:29,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753994591] [2022-11-25 16:51:29,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:51:29,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:51:29,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:29,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 16:51:29,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:29,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-25 16:51:29,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:29,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-25 16:51:29,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:29,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 16:51:29,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:29,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-11-25 16:51:29,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:29,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-25 16:51:29,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:29,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-25 16:51:29,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:29,626 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:51:29,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:51:29,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753994591] [2022-11-25 16:51:29,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753994591] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:51:29,628 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:51:29,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 16:51:29,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610421450] [2022-11-25 16:51:29,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:51:29,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 16:51:29,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:51:29,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 16:51:29,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-25 16:51:29,631 INFO L87 Difference]: Start difference. First operand 2313 states and 3224 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 4 states have internal predecessors, (53), 3 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) [2022-11-25 16:51:31,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:51:31,446 INFO L93 Difference]: Finished difference Result 6341 states and 9294 transitions. [2022-11-25 16:51:31,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 16:51:31,447 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 4 states have internal predecessors, (53), 3 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) Word has length 68 [2022-11-25 16:51:31,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:51:31,474 INFO L225 Difference]: With dead ends: 6341 [2022-11-25 16:51:31,474 INFO L226 Difference]: Without dead ends: 4040 [2022-11-25 16:51:31,484 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-25 16:51:31,486 INFO L413 NwaCegarLoop]: 748 mSDtfsCounter, 571 mSDsluCounter, 1755 mSDsCounter, 0 mSdLazyCounter, 857 mSolverCounterSat, 273 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 575 SdHoareTripleChecker+Valid, 2503 SdHoareTripleChecker+Invalid, 1130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 273 IncrementalHoareTripleChecker+Valid, 857 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-25 16:51:31,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [575 Valid, 2503 Invalid, 1130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [273 Valid, 857 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-25 16:51:31,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4040 states. [2022-11-25 16:51:31,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4040 to 2347. [2022-11-25 16:51:31,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2347 states, 1668 states have (on average 1.290167865707434) internal successors, (2152), 1705 states have internal predecessors, (2152), 544 states have call successors, (544), 129 states have call predecessors, (544), 134 states have return successors, (580), 528 states have call predecessors, (580), 540 states have call successors, (580) [2022-11-25 16:51:31,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2347 states to 2347 states and 3276 transitions. [2022-11-25 16:51:31,700 INFO L78 Accepts]: Start accepts. Automaton has 2347 states and 3276 transitions. Word has length 68 [2022-11-25 16:51:31,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:51:31,700 INFO L495 AbstractCegarLoop]: Abstraction has 2347 states and 3276 transitions. [2022-11-25 16:51:31,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 4 states have internal predecessors, (53), 3 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) [2022-11-25 16:51:31,701 INFO L276 IsEmpty]: Start isEmpty. Operand 2347 states and 3276 transitions. [2022-11-25 16:51:31,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-25 16:51:31,706 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:51:31,706 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:51:31,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 16:51:31,706 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:51:31,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:51:31,707 INFO L85 PathProgramCache]: Analyzing trace with hash 1776712988, now seen corresponding path program 1 times [2022-11-25 16:51:31,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:51:31,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687391966] [2022-11-25 16:51:31,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:51:31,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:51:31,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:32,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 16:51:32,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:32,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-25 16:51:32,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:32,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-25 16:51:32,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:32,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 16:51:32,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:32,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-11-25 16:51:32,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:32,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-25 16:51:32,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:32,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-25 16:51:32,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:32,139 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:51:32,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:51:32,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687391966] [2022-11-25 16:51:32,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687391966] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:51:32,140 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:51:32,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 16:51:32,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908570871] [2022-11-25 16:51:32,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:51:32,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 16:51:32,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:51:32,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 16:51:32,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-25 16:51:32,144 INFO L87 Difference]: Start difference. First operand 2347 states and 3276 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) [2022-11-25 16:51:33,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:51:33,848 INFO L93 Difference]: Finished difference Result 5919 states and 8590 transitions. [2022-11-25 16:51:33,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 16:51:33,849 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) Word has length 69 [2022-11-25 16:51:33,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:51:33,868 INFO L225 Difference]: With dead ends: 5919 [2022-11-25 16:51:33,868 INFO L226 Difference]: Without dead ends: 3584 [2022-11-25 16:51:33,875 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-25 16:51:33,878 INFO L413 NwaCegarLoop]: 695 mSDtfsCounter, 460 mSDsluCounter, 1689 mSDsCounter, 0 mSdLazyCounter, 822 mSolverCounterSat, 212 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 465 SdHoareTripleChecker+Valid, 2384 SdHoareTripleChecker+Invalid, 1034 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 212 IncrementalHoareTripleChecker+Valid, 822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-25 16:51:33,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [465 Valid, 2384 Invalid, 1034 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [212 Valid, 822 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-25 16:51:33,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3584 states. [2022-11-25 16:51:34,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3584 to 2363. [2022-11-25 16:51:34,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2363 states, 1684 states have (on average 1.2874109263657958) internal successors, (2168), 1721 states have internal predecessors, (2168), 544 states have call successors, (544), 129 states have call predecessors, (544), 134 states have return successors, (580), 528 states have call predecessors, (580), 540 states have call successors, (580) [2022-11-25 16:51:34,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2363 states to 2363 states and 3292 transitions. [2022-11-25 16:51:34,082 INFO L78 Accepts]: Start accepts. Automaton has 2363 states and 3292 transitions. Word has length 69 [2022-11-25 16:51:34,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:51:34,082 INFO L495 AbstractCegarLoop]: Abstraction has 2363 states and 3292 transitions. [2022-11-25 16:51:34,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) [2022-11-25 16:51:34,083 INFO L276 IsEmpty]: Start isEmpty. Operand 2363 states and 3292 transitions. [2022-11-25 16:51:34,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-25 16:51:34,086 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:51:34,086 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:51:34,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 16:51:34,087 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:51:34,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:51:34,087 INFO L85 PathProgramCache]: Analyzing trace with hash 676145405, now seen corresponding path program 1 times [2022-11-25 16:51:34,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:51:34,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170517908] [2022-11-25 16:51:34,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:51:34,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:51:34,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:34,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 16:51:34,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:34,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-25 16:51:34,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:34,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-25 16:51:34,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:34,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 16:51:34,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:34,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-11-25 16:51:34,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:34,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-25 16:51:34,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:34,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-25 16:51:34,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:34,773 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:51:34,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:51:34,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170517908] [2022-11-25 16:51:34,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170517908] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:51:34,774 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:51:34,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-25 16:51:34,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679954536] [2022-11-25 16:51:34,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:51:34,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 16:51:34,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:51:34,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 16:51:34,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-11-25 16:51:34,777 INFO L87 Difference]: Start difference. First operand 2363 states and 3292 transitions. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2022-11-25 16:51:36,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:51:36,948 INFO L93 Difference]: Finished difference Result 3619 states and 5113 transitions. [2022-11-25 16:51:36,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 16:51:36,950 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) Word has length 69 [2022-11-25 16:51:36,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:51:36,963 INFO L225 Difference]: With dead ends: 3619 [2022-11-25 16:51:36,963 INFO L226 Difference]: Without dead ends: 2425 [2022-11-25 16:51:36,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2022-11-25 16:51:36,968 INFO L413 NwaCegarLoop]: 420 mSDtfsCounter, 125 mSDsluCounter, 2307 mSDsCounter, 0 mSdLazyCounter, 1313 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 2727 SdHoareTripleChecker+Invalid, 1401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-25 16:51:36,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 2727 Invalid, 1401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 1313 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-25 16:51:36,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2425 states. [2022-11-25 16:51:37,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2425 to 2377. [2022-11-25 16:51:37,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2377 states, 1694 states have (on average 1.2845336481700118) internal successors, (2176), 1731 states have internal predecessors, (2176), 544 states have call successors, (544), 129 states have call predecessors, (544), 138 states have return successors, (592), 532 states have call predecessors, (592), 540 states have call successors, (592) [2022-11-25 16:51:37,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2377 states to 2377 states and 3312 transitions. [2022-11-25 16:51:37,137 INFO L78 Accepts]: Start accepts. Automaton has 2377 states and 3312 transitions. Word has length 69 [2022-11-25 16:51:37,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:51:37,137 INFO L495 AbstractCegarLoop]: Abstraction has 2377 states and 3312 transitions. [2022-11-25 16:51:37,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2022-11-25 16:51:37,138 INFO L276 IsEmpty]: Start isEmpty. Operand 2377 states and 3312 transitions. [2022-11-25 16:51:37,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-25 16:51:37,140 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:51:37,140 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:51:37,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 16:51:37,141 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:51:37,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:51:37,141 INFO L85 PathProgramCache]: Analyzing trace with hash -1333958436, now seen corresponding path program 1 times [2022-11-25 16:51:37,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:51:37,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646301499] [2022-11-25 16:51:37,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:51:37,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:51:37,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:37,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 16:51:37,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:37,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-25 16:51:37,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:37,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-25 16:51:37,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:37,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 16:51:37,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:37,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-11-25 16:51:37,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:37,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-25 16:51:37,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:37,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-25 16:51:37,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:37,663 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:51:37,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:51:37,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646301499] [2022-11-25 16:51:37,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646301499] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:51:37,664 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:51:37,664 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-25 16:51:37,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394181768] [2022-11-25 16:51:37,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:51:37,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 16:51:37,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:51:37,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 16:51:37,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2022-11-25 16:51:37,666 INFO L87 Difference]: Start difference. First operand 2377 states and 3312 transitions. Second operand has 12 states, 12 states have (on average 4.5) internal successors, (54), 7 states have internal predecessors, (54), 3 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) [2022-11-25 16:51:40,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:51:40,412 INFO L93 Difference]: Finished difference Result 5577 states and 8014 transitions. [2022-11-25 16:51:40,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 16:51:40,413 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.5) internal successors, (54), 7 states have internal predecessors, (54), 3 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) Word has length 69 [2022-11-25 16:51:40,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:51:40,430 INFO L225 Difference]: With dead ends: 5577 [2022-11-25 16:51:40,430 INFO L226 Difference]: Without dead ends: 3212 [2022-11-25 16:51:40,437 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2022-11-25 16:51:40,438 INFO L413 NwaCegarLoop]: 793 mSDtfsCounter, 454 mSDsluCounter, 5516 mSDsCounter, 0 mSdLazyCounter, 2446 mSolverCounterSat, 182 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 541 SdHoareTripleChecker+Valid, 6309 SdHoareTripleChecker+Invalid, 2628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 182 IncrementalHoareTripleChecker+Valid, 2446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-25 16:51:40,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [541 Valid, 6309 Invalid, 2628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [182 Valid, 2446 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-25 16:51:40,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3212 states. [2022-11-25 16:51:40,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3212 to 2381. [2022-11-25 16:51:40,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2381 states, 1698 states have (on average 1.28150765606596) internal successors, (2176), 1733 states have internal predecessors, (2176), 544 states have call successors, (544), 129 states have call predecessors, (544), 138 states have return successors, (592), 534 states have call predecessors, (592), 540 states have call successors, (592) [2022-11-25 16:51:40,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2381 states to 2381 states and 3312 transitions. [2022-11-25 16:51:40,629 INFO L78 Accepts]: Start accepts. Automaton has 2381 states and 3312 transitions. Word has length 69 [2022-11-25 16:51:40,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:51:40,630 INFO L495 AbstractCegarLoop]: Abstraction has 2381 states and 3312 transitions. [2022-11-25 16:51:40,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.5) internal successors, (54), 7 states have internal predecessors, (54), 3 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) [2022-11-25 16:51:40,630 INFO L276 IsEmpty]: Start isEmpty. Operand 2381 states and 3312 transitions. [2022-11-25 16:51:40,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-25 16:51:40,635 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:51:40,635 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-25 16:51:40,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 16:51:40,636 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:51:40,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:51:40,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1395829828, now seen corresponding path program 1 times [2022-11-25 16:51:40,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:51:40,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808106986] [2022-11-25 16:51:40,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:51:40,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:51:40,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:40,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 16:51:40,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:40,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-25 16:51:40,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:40,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-25 16:51:40,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:41,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 16:51:41,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:41,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-11-25 16:51:41,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:41,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-25 16:51:41,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:41,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 16:51:41,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:41,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-11-25 16:51:41,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:41,143 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-25 16:51:41,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:51:41,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808106986] [2022-11-25 16:51:41,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808106986] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:51:41,144 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:51:41,144 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 16:51:41,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611059167] [2022-11-25 16:51:41,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:51:41,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 16:51:41,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:51:41,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 16:51:41,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-25 16:51:41,146 INFO L87 Difference]: Start difference. First operand 2381 states and 3312 transitions. Second operand has 8 states, 8 states have (on average 6.625) internal successors, (53), 4 states have internal predecessors, (53), 3 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-11-25 16:51:43,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:51:43,638 INFO L93 Difference]: Finished difference Result 5739 states and 8248 transitions. [2022-11-25 16:51:43,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 16:51:43,639 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 4 states have internal predecessors, (53), 3 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 75 [2022-11-25 16:51:43,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:51:43,657 INFO L225 Difference]: With dead ends: 5739 [2022-11-25 16:51:43,657 INFO L226 Difference]: Without dead ends: 3370 [2022-11-25 16:51:43,663 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-25 16:51:43,664 INFO L413 NwaCegarLoop]: 696 mSDtfsCounter, 400 mSDsluCounter, 2862 mSDsCounter, 0 mSdLazyCounter, 1307 mSolverCounterSat, 195 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 3558 SdHoareTripleChecker+Invalid, 1502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 195 IncrementalHoareTripleChecker+Valid, 1307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-25 16:51:43,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [463 Valid, 3558 Invalid, 1502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [195 Valid, 1307 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-25 16:51:43,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3370 states. [2022-11-25 16:51:43,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3370 to 2179. [2022-11-25 16:51:43,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2179 states, 1560 states have (on average 1.2717948717948717) internal successors, (1984), 1579 states have internal predecessors, (1984), 480 states have call successors, (480), 127 states have call predecessors, (480), 138 states have return successors, (532), 480 states have call predecessors, (532), 476 states have call successors, (532) [2022-11-25 16:51:43,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2179 states to 2179 states and 2996 transitions. [2022-11-25 16:51:43,876 INFO L78 Accepts]: Start accepts. Automaton has 2179 states and 2996 transitions. Word has length 75 [2022-11-25 16:51:43,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:51:43,877 INFO L495 AbstractCegarLoop]: Abstraction has 2179 states and 2996 transitions. [2022-11-25 16:51:43,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 4 states have internal predecessors, (53), 3 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-11-25 16:51:43,878 INFO L276 IsEmpty]: Start isEmpty. Operand 2179 states and 2996 transitions. [2022-11-25 16:51:43,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-25 16:51:43,882 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:51:43,883 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-25 16:51:43,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 16:51:43,883 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:51:43,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:51:43,884 INFO L85 PathProgramCache]: Analyzing trace with hash -506709307, now seen corresponding path program 1 times [2022-11-25 16:51:43,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:51:43,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298925284] [2022-11-25 16:51:43,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:51:43,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:51:43,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:44,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 16:51:44,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:44,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-25 16:51:44,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:44,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-25 16:51:44,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:44,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 16:51:44,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:44,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-11-25 16:51:44,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:44,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-25 16:51:44,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:44,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 16:51:44,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:44,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-11-25 16:51:44,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:44,434 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-25 16:51:44,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:51:44,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298925284] [2022-11-25 16:51:44,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298925284] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:51:44,435 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:51:44,435 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-25 16:51:44,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409981006] [2022-11-25 16:51:44,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:51:44,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 16:51:44,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:51:44,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 16:51:44,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-11-25 16:51:44,437 INFO L87 Difference]: Start difference. First operand 2179 states and 2996 transitions. Second operand has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 6 states have internal predecessors, (53), 6 states have call successors, (9), 6 states have call predecessors, (9), 2 states have return successors, (7), 4 states have call predecessors, (7), 5 states have call successors, (7) [2022-11-25 16:51:48,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:51:48,289 INFO L93 Difference]: Finished difference Result 3452 states and 4818 transitions. [2022-11-25 16:51:48,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 16:51:48,289 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 6 states have internal predecessors, (53), 6 states have call successors, (9), 6 states have call predecessors, (9), 2 states have return successors, (7), 4 states have call predecessors, (7), 5 states have call successors, (7) Word has length 75 [2022-11-25 16:51:48,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:51:48,307 INFO L225 Difference]: With dead ends: 3452 [2022-11-25 16:51:48,307 INFO L226 Difference]: Without dead ends: 3447 [2022-11-25 16:51:48,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2022-11-25 16:51:48,310 INFO L413 NwaCegarLoop]: 669 mSDtfsCounter, 2426 mSDsluCounter, 1390 mSDsCounter, 0 mSdLazyCounter, 1823 mSolverCounterSat, 1097 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2539 SdHoareTripleChecker+Valid, 2059 SdHoareTripleChecker+Invalid, 2920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1097 IncrementalHoareTripleChecker+Valid, 1823 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-25 16:51:48,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2539 Valid, 2059 Invalid, 2920 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1097 Valid, 1823 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-11-25 16:51:48,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3447 states. [2022-11-25 16:51:48,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3447 to 3363. [2022-11-25 16:51:48,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3363 states, 2405 states have (on average 1.2752598752598752) internal successors, (3067), 2440 states have internal predecessors, (3067), 748 states have call successors, (748), 189 states have call predecessors, (748), 209 states have return successors, (870), 749 states have call predecessors, (870), 744 states have call successors, (870) [2022-11-25 16:51:48,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3363 states to 3363 states and 4685 transitions. [2022-11-25 16:51:48,583 INFO L78 Accepts]: Start accepts. Automaton has 3363 states and 4685 transitions. Word has length 75 [2022-11-25 16:51:48,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:51:48,584 INFO L495 AbstractCegarLoop]: Abstraction has 3363 states and 4685 transitions. [2022-11-25 16:51:48,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 6 states have internal predecessors, (53), 6 states have call successors, (9), 6 states have call predecessors, (9), 2 states have return successors, (7), 4 states have call predecessors, (7), 5 states have call successors, (7) [2022-11-25 16:51:48,585 INFO L276 IsEmpty]: Start isEmpty. Operand 3363 states and 4685 transitions. [2022-11-25 16:51:48,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-11-25 16:51:48,587 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:51:48,588 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-25 16:51:48,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-25 16:51:48,588 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:51:48,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:51:48,589 INFO L85 PathProgramCache]: Analyzing trace with hash -418091033, now seen corresponding path program 1 times [2022-11-25 16:51:48,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:51:48,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938842392] [2022-11-25 16:51:48,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:51:48,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:51:48,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:48,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 16:51:48,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:49,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 16:51:49,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:49,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 16:51:49,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:49,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 16:51:49,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:49,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 16:51:49,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:49,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-25 16:51:49,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:49,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 16:51:49,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:49,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-11-25 16:51:49,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:49,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-25 16:51:49,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:49,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 16:51:49,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:49,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-11-25 16:51:49,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:49,240 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-25 16:51:49,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:51:49,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938842392] [2022-11-25 16:51:49,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938842392] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:51:49,241 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:51:49,241 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-25 16:51:49,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603298072] [2022-11-25 16:51:49,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:51:49,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 16:51:49,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:51:49,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 16:51:49,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-11-25 16:51:49,243 INFO L87 Difference]: Start difference. First operand 3363 states and 4685 transitions. Second operand has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 4 states have internal predecessors, (66), 3 states have call successors, (12), 6 states have call predecessors, (12), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-11-25 16:51:51,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:51:51,352 INFO L93 Difference]: Finished difference Result 7643 states and 10959 transitions. [2022-11-25 16:51:51,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 16:51:51,353 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 4 states have internal predecessors, (66), 3 states have call successors, (12), 6 states have call predecessors, (12), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 94 [2022-11-25 16:51:51,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:51:51,377 INFO L225 Difference]: With dead ends: 7643 [2022-11-25 16:51:51,377 INFO L226 Difference]: Without dead ends: 4292 [2022-11-25 16:51:51,388 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2022-11-25 16:51:51,388 INFO L413 NwaCegarLoop]: 686 mSDtfsCounter, 620 mSDsluCounter, 1976 mSDsCounter, 0 mSdLazyCounter, 1026 mSolverCounterSat, 388 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 688 SdHoareTripleChecker+Valid, 2662 SdHoareTripleChecker+Invalid, 1414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 388 IncrementalHoareTripleChecker+Valid, 1026 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-25 16:51:51,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [688 Valid, 2662 Invalid, 1414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [388 Valid, 1026 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-25 16:51:51,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4292 states. [2022-11-25 16:51:51,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4292 to 2826. [2022-11-25 16:51:51,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2826 states, 2031 states have (on average 1.2737567700640078) internal successors, (2587), 2057 states have internal predecessors, (2587), 624 states have call successors, (624), 153 states have call predecessors, (624), 170 states have return successors, (730), 631 states have call predecessors, (730), 620 states have call successors, (730) [2022-11-25 16:51:51,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2826 states to 2826 states and 3941 transitions. [2022-11-25 16:51:51,695 INFO L78 Accepts]: Start accepts. Automaton has 2826 states and 3941 transitions. Word has length 94 [2022-11-25 16:51:51,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:51:51,696 INFO L495 AbstractCegarLoop]: Abstraction has 2826 states and 3941 transitions. [2022-11-25 16:51:51,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 4 states have internal predecessors, (66), 3 states have call successors, (12), 6 states have call predecessors, (12), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-11-25 16:51:51,696 INFO L276 IsEmpty]: Start isEmpty. Operand 2826 states and 3941 transitions. [2022-11-25 16:51:51,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-11-25 16:51:51,700 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:51:51,701 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:51:51,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-25 16:51:51,701 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:51:51,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:51:51,702 INFO L85 PathProgramCache]: Analyzing trace with hash 564700489, now seen corresponding path program 1 times [2022-11-25 16:51:51,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:51:51,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563552179] [2022-11-25 16:51:51,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:51:51,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:51:51,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:52,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 16:51:52,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:52,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 16:51:52,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:52,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 16:51:52,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:52,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 16:51:52,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:52,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 16:51:52,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:52,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-25 16:51:52,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:52,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 16:51:52,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:52,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-11-25 16:51:52,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:52,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-25 16:51:52,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:52,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-25 16:51:52,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:52,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-25 16:51:52,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:52,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:51:52,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:51:52,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563552179] [2022-11-25 16:51:52,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563552179] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:51:52,417 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:51:52,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-25 16:51:52,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517788167] [2022-11-25 16:51:52,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:51:52,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 16:51:52,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:51:52,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 16:51:52,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2022-11-25 16:51:52,420 INFO L87 Difference]: Start difference. First operand 2826 states and 3941 transitions. Second operand has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 7 states have internal predecessors, (69), 3 states have call successors, (12), 5 states have call predecessors, (12), 4 states have return successors, (11), 5 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-25 16:51:55,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:51:55,787 INFO L93 Difference]: Finished difference Result 6776 states and 9771 transitions. [2022-11-25 16:51:55,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-25 16:51:55,788 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 7 states have internal predecessors, (69), 3 states have call successors, (12), 5 states have call predecessors, (12), 4 states have return successors, (11), 5 states have call predecessors, (11), 3 states have call successors, (11) Word has length 92 [2022-11-25 16:51:55,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:51:55,807 INFO L225 Difference]: With dead ends: 6776 [2022-11-25 16:51:55,807 INFO L226 Difference]: Without dead ends: 4370 [2022-11-25 16:51:55,815 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2022-11-25 16:51:55,816 INFO L413 NwaCegarLoop]: 685 mSDtfsCounter, 439 mSDsluCounter, 5103 mSDsCounter, 0 mSdLazyCounter, 2617 mSolverCounterSat, 226 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 525 SdHoareTripleChecker+Valid, 5788 SdHoareTripleChecker+Invalid, 2843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 226 IncrementalHoareTripleChecker+Valid, 2617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-25 16:51:55,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [525 Valid, 5788 Invalid, 2843 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [226 Valid, 2617 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-11-25 16:51:55,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4370 states. [2022-11-25 16:51:56,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4370 to 2826. [2022-11-25 16:51:56,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2826 states, 2031 states have (on average 1.2698178237321516) internal successors, (2579), 2057 states have internal predecessors, (2579), 624 states have call successors, (624), 153 states have call predecessors, (624), 170 states have return successors, (730), 631 states have call predecessors, (730), 620 states have call successors, (730) [2022-11-25 16:51:56,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2826 states to 2826 states and 3933 transitions. [2022-11-25 16:51:56,117 INFO L78 Accepts]: Start accepts. Automaton has 2826 states and 3933 transitions. Word has length 92 [2022-11-25 16:51:56,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:51:56,118 INFO L495 AbstractCegarLoop]: Abstraction has 2826 states and 3933 transitions. [2022-11-25 16:51:56,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 7 states have internal predecessors, (69), 3 states have call successors, (12), 5 states have call predecessors, (12), 4 states have return successors, (11), 5 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-25 16:51:56,118 INFO L276 IsEmpty]: Start isEmpty. Operand 2826 states and 3933 transitions. [2022-11-25 16:51:56,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-11-25 16:51:56,122 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:51:56,122 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:51:56,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-25 16:51:56,122 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:51:56,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:51:56,123 INFO L85 PathProgramCache]: Analyzing trace with hash 1871827029, now seen corresponding path program 1 times [2022-11-25 16:51:56,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:51:56,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855154019] [2022-11-25 16:51:56,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:51:56,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:51:56,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:56,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 16:51:56,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:56,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-25 16:51:56,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:56,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-25 16:51:56,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:56,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 16:51:56,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:56,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-11-25 16:51:56,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:56,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-25 16:51:56,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:56,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 16:51:56,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:56,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-11-25 16:51:56,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:56,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-25 16:51:56,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:56,718 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-25 16:51:56,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:51:56,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855154019] [2022-11-25 16:51:56,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855154019] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:51:56,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:51:56,720 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 16:51:56,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091311390] [2022-11-25 16:51:56,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:51:56,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 16:51:56,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:51:56,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 16:51:56,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-25 16:51:56,722 INFO L87 Difference]: Start difference. First operand 2826 states and 3933 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 4 states have internal predecessors, (63), 3 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-11-25 16:51:58,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:51:58,607 INFO L93 Difference]: Finished difference Result 6262 states and 9007 transitions. [2022-11-25 16:51:58,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 16:51:58,610 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 4 states have internal predecessors, (63), 3 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 87 [2022-11-25 16:51:58,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:51:58,625 INFO L225 Difference]: With dead ends: 6262 [2022-11-25 16:51:58,625 INFO L226 Difference]: Without dead ends: 3856 [2022-11-25 16:51:58,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-25 16:51:58,632 INFO L413 NwaCegarLoop]: 688 mSDtfsCounter, 519 mSDsluCounter, 1994 mSDsCounter, 0 mSdLazyCounter, 989 mSolverCounterSat, 285 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 587 SdHoareTripleChecker+Valid, 2682 SdHoareTripleChecker+Invalid, 1274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 285 IncrementalHoareTripleChecker+Valid, 989 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-25 16:51:58,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [587 Valid, 2682 Invalid, 1274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [285 Valid, 989 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-25 16:51:58,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3856 states. [2022-11-25 16:51:58,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3856 to 2636. [2022-11-25 16:51:58,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2636 states, 1899 states have (on average 1.2622432859399684) internal successors, (2397), 1911 states have internal predecessors, (2397), 568 states have call successors, (568), 151 states have call predecessors, (568), 168 states have return successors, (670), 585 states have call predecessors, (670), 564 states have call successors, (670) [2022-11-25 16:51:58,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2636 states to 2636 states and 3635 transitions. [2022-11-25 16:51:58,908 INFO L78 Accepts]: Start accepts. Automaton has 2636 states and 3635 transitions. Word has length 87 [2022-11-25 16:51:58,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:51:58,908 INFO L495 AbstractCegarLoop]: Abstraction has 2636 states and 3635 transitions. [2022-11-25 16:51:58,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 4 states have internal predecessors, (63), 3 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-11-25 16:51:58,909 INFO L276 IsEmpty]: Start isEmpty. Operand 2636 states and 3635 transitions. [2022-11-25 16:51:58,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-11-25 16:51:58,912 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:51:58,912 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:51:58,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-25 16:51:58,913 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:51:58,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:51:58,913 INFO L85 PathProgramCache]: Analyzing trace with hash -205382314, now seen corresponding path program 1 times [2022-11-25 16:51:58,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:51:58,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63830774] [2022-11-25 16:51:58,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:51:58,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:51:58,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:59,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 16:51:59,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:59,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-25 16:51:59,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:59,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-25 16:51:59,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:59,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 16:51:59,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:59,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-11-25 16:51:59,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:59,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-25 16:51:59,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:59,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 16:51:59,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:59,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-11-25 16:51:59,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:59,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-25 16:51:59,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:59,660 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 16:51:59,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:51:59,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63830774] [2022-11-25 16:51:59,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63830774] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:51:59,661 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:51:59,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-25 16:51:59,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196812498] [2022-11-25 16:51:59,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:51:59,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 16:51:59,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:51:59,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 16:51:59,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-11-25 16:51:59,664 INFO L87 Difference]: Start difference. First operand 2636 states and 3635 transitions. Second operand has 10 states, 10 states have (on average 6.6) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2022-11-25 16:52:01,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:52:01,995 INFO L93 Difference]: Finished difference Result 3905 states and 5433 transitions. [2022-11-25 16:52:01,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 16:52:01,995 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.6) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) Word has length 87 [2022-11-25 16:52:01,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:52:02,006 INFO L225 Difference]: With dead ends: 3905 [2022-11-25 16:52:02,006 INFO L226 Difference]: Without dead ends: 2681 [2022-11-25 16:52:02,011 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2022-11-25 16:52:02,011 INFO L413 NwaCegarLoop]: 408 mSDtfsCounter, 350 mSDsluCounter, 1984 mSDsCounter, 0 mSdLazyCounter, 1236 mSolverCounterSat, 285 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 2392 SdHoareTripleChecker+Invalid, 1521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 285 IncrementalHoareTripleChecker+Valid, 1236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-25 16:52:02,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [350 Valid, 2392 Invalid, 1521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [285 Valid, 1236 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-25 16:52:02,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2681 states. [2022-11-25 16:52:02,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2681 to 2644. [2022-11-25 16:52:02,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2644 states, 1907 states have (on average 1.261143156790771) internal successors, (2405), 1915 states have internal predecessors, (2405), 568 states have call successors, (568), 151 states have call predecessors, (568), 168 states have return successors, (670), 589 states have call predecessors, (670), 564 states have call successors, (670) [2022-11-25 16:52:02,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2644 states to 2644 states and 3643 transitions. [2022-11-25 16:52:02,361 INFO L78 Accepts]: Start accepts. Automaton has 2644 states and 3643 transitions. Word has length 87 [2022-11-25 16:52:02,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:52:02,362 INFO L495 AbstractCegarLoop]: Abstraction has 2644 states and 3643 transitions. [2022-11-25 16:52:02,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.6) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2022-11-25 16:52:02,362 INFO L276 IsEmpty]: Start isEmpty. Operand 2644 states and 3643 transitions. [2022-11-25 16:52:02,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-11-25 16:52:02,366 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:52:02,366 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-25 16:52:02,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-25 16:52:02,368 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:52:02,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:52:02,369 INFO L85 PathProgramCache]: Analyzing trace with hash 2079481141, now seen corresponding path program 1 times [2022-11-25 16:52:02,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:52:02,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139503248] [2022-11-25 16:52:02,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:52:02,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:52:02,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:02,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 16:52:02,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:02,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-25 16:52:02,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:02,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-25 16:52:02,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:02,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 16:52:02,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:02,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-11-25 16:52:02,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:02,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-25 16:52:02,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:02,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 16:52:02,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:02,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-11-25 16:52:02,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:02,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-25 16:52:02,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:02,701 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-25 16:52:02,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:52:02,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139503248] [2022-11-25 16:52:02,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139503248] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:52:02,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:52:02,703 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 16:52:02,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141620317] [2022-11-25 16:52:02,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:52:02,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 16:52:02,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:52:02,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 16:52:02,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 16:52:02,705 INFO L87 Difference]: Start difference. First operand 2644 states and 3643 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2022-11-25 16:52:04,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:52:04,286 INFO L93 Difference]: Finished difference Result 4660 states and 6627 transitions. [2022-11-25 16:52:04,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 16:52:04,286 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) Word has length 87 [2022-11-25 16:52:04,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:52:04,301 INFO L225 Difference]: With dead ends: 4660 [2022-11-25 16:52:04,302 INFO L226 Difference]: Without dead ends: 3432 [2022-11-25 16:52:04,307 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-11-25 16:52:04,308 INFO L413 NwaCegarLoop]: 711 mSDtfsCounter, 429 mSDsluCounter, 1274 mSDsCounter, 0 mSdLazyCounter, 683 mSolverCounterSat, 209 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 510 SdHoareTripleChecker+Valid, 1985 SdHoareTripleChecker+Invalid, 892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 209 IncrementalHoareTripleChecker+Valid, 683 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-25 16:52:04,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [510 Valid, 1985 Invalid, 892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [209 Valid, 683 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-25 16:52:04,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3432 states. [2022-11-25 16:52:04,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3432 to 2652. [2022-11-25 16:52:04,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2652 states, 1915 states have (on average 1.2600522193211487) internal successors, (2413), 1923 states have internal predecessors, (2413), 568 states have call successors, (568), 151 states have call predecessors, (568), 168 states have return successors, (670), 589 states have call predecessors, (670), 564 states have call successors, (670) [2022-11-25 16:52:04,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2652 states to 2652 states and 3651 transitions. [2022-11-25 16:52:04,617 INFO L78 Accepts]: Start accepts. Automaton has 2652 states and 3651 transitions. Word has length 87 [2022-11-25 16:52:04,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:52:04,617 INFO L495 AbstractCegarLoop]: Abstraction has 2652 states and 3651 transitions. [2022-11-25 16:52:04,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2022-11-25 16:52:04,618 INFO L276 IsEmpty]: Start isEmpty. Operand 2652 states and 3651 transitions. [2022-11-25 16:52:04,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-11-25 16:52:04,621 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:52:04,621 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:52:04,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-25 16:52:04,621 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:52:04,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:52:04,622 INFO L85 PathProgramCache]: Analyzing trace with hash 390816807, now seen corresponding path program 1 times [2022-11-25 16:52:04,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:52:04,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206664055] [2022-11-25 16:52:04,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:52:04,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:52:04,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:04,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 16:52:04,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:04,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-25 16:52:04,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:04,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-25 16:52:04,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:04,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-25 16:52:04,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:04,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-25 16:52:04,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:04,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-25 16:52:04,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:04,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-25 16:52:04,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:04,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 16:52:04,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:04,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 16:52:04,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:04,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-25 16:52:04,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:04,866 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-25 16:52:04,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:52:04,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206664055] [2022-11-25 16:52:04,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206664055] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:52:04,869 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:52:04,869 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 16:52:04,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266819859] [2022-11-25 16:52:04,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:52:04,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 16:52:04,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:52:04,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 16:52:04,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 16:52:04,872 INFO L87 Difference]: Start difference. First operand 2652 states and 3651 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 3 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-11-25 16:52:07,015 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 16:52:09,500 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 16:52:09,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:52:09,581 INFO L93 Difference]: Finished difference Result 5424 states and 7473 transitions. [2022-11-25 16:52:09,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 16:52:09,581 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 3 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 94 [2022-11-25 16:52:09,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:52:09,592 INFO L225 Difference]: With dead ends: 5424 [2022-11-25 16:52:09,592 INFO L226 Difference]: Without dead ends: 2778 [2022-11-25 16:52:09,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-11-25 16:52:09,601 INFO L413 NwaCegarLoop]: 411 mSDtfsCounter, 254 mSDsluCounter, 1108 mSDsCounter, 0 mSdLazyCounter, 883 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 1519 SdHoareTripleChecker+Invalid, 1089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 883 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-11-25 16:52:09,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 1519 Invalid, 1089 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 883 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-11-25 16:52:09,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2778 states. [2022-11-25 16:52:09,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2778 to 2664. [2022-11-25 16:52:09,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2664 states, 1923 states have (on average 1.2584503380135206) internal successors, (2420), 1931 states have internal predecessors, (2420), 570 states have call successors, (570), 153 states have call predecessors, (570), 170 states have return successors, (672), 591 states have call predecessors, (672), 566 states have call successors, (672) [2022-11-25 16:52:09,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2664 states to 2664 states and 3662 transitions. [2022-11-25 16:52:09,907 INFO L78 Accepts]: Start accepts. Automaton has 2664 states and 3662 transitions. Word has length 94 [2022-11-25 16:52:09,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:52:09,908 INFO L495 AbstractCegarLoop]: Abstraction has 2664 states and 3662 transitions. [2022-11-25 16:52:09,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 3 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-11-25 16:52:09,908 INFO L276 IsEmpty]: Start isEmpty. Operand 2664 states and 3662 transitions. [2022-11-25 16:52:09,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-11-25 16:52:09,911 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:52:09,911 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:52:09,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-25 16:52:09,911 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:52:09,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:52:09,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1118734186, now seen corresponding path program 1 times [2022-11-25 16:52:09,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:52:09,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141848406] [2022-11-25 16:52:09,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:52:09,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:52:09,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:10,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 16:52:10,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:10,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-25 16:52:10,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:10,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-25 16:52:10,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:10,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 16:52:10,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:10,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-11-25 16:52:10,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:10,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-25 16:52:10,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:10,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 16:52:10,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:10,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-11-25 16:52:10,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:10,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-25 16:52:10,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:10,436 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-25 16:52:10,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:52:10,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141848406] [2022-11-25 16:52:10,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141848406] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:52:10,437 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:52:10,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-25 16:52:10,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046747930] [2022-11-25 16:52:10,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:52:10,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 16:52:10,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:52:10,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 16:52:10,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-11-25 16:52:10,441 INFO L87 Difference]: Start difference. First operand 2664 states and 3662 transitions. Second operand has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 6 states have internal predecessors, (64), 6 states have call successors, (10), 6 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 5 states have call successors, (8) [2022-11-25 16:52:14,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:52:14,232 INFO L93 Difference]: Finished difference Result 3982 states and 5507 transitions. [2022-11-25 16:52:14,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 16:52:14,233 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 6 states have internal predecessors, (64), 6 states have call successors, (10), 6 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 5 states have call successors, (8) Word has length 89 [2022-11-25 16:52:14,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:52:14,246 INFO L225 Difference]: With dead ends: 3982 [2022-11-25 16:52:14,246 INFO L226 Difference]: Without dead ends: 3979 [2022-11-25 16:52:14,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2022-11-25 16:52:14,249 INFO L413 NwaCegarLoop]: 752 mSDtfsCounter, 2066 mSDsluCounter, 1902 mSDsCounter, 0 mSdLazyCounter, 2174 mSolverCounterSat, 864 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2197 SdHoareTripleChecker+Valid, 2654 SdHoareTripleChecker+Invalid, 3038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 864 IncrementalHoareTripleChecker+Valid, 2174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-11-25 16:52:14,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2197 Valid, 2654 Invalid, 3038 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [864 Valid, 2174 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-11-25 16:52:14,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3979 states. [2022-11-25 16:52:14,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3979 to 3879. [2022-11-25 16:52:14,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3879 states, 2797 states have (on average 1.2609939220593493) internal successors, (3527), 2814 states have internal predecessors, (3527), 838 states have call successors, (838), 215 states have call predecessors, (838), 243 states have return successors, (1014), 869 states have call predecessors, (1014), 834 states have call successors, (1014) [2022-11-25 16:52:14,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3879 states to 3879 states and 5379 transitions. [2022-11-25 16:52:14,714 INFO L78 Accepts]: Start accepts. Automaton has 3879 states and 5379 transitions. Word has length 89 [2022-11-25 16:52:14,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:52:14,715 INFO L495 AbstractCegarLoop]: Abstraction has 3879 states and 5379 transitions. [2022-11-25 16:52:14,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 6 states have internal predecessors, (64), 6 states have call successors, (10), 6 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 5 states have call successors, (8) [2022-11-25 16:52:14,715 INFO L276 IsEmpty]: Start isEmpty. Operand 3879 states and 5379 transitions. [2022-11-25 16:52:14,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-11-25 16:52:14,719 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:52:14,719 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-25 16:52:14,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-25 16:52:14,720 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:52:14,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:52:14,721 INFO L85 PathProgramCache]: Analyzing trace with hash 1748979270, now seen corresponding path program 1 times [2022-11-25 16:52:14,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:52:14,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113265248] [2022-11-25 16:52:14,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:52:14,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:52:14,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:15,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 16:52:15,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:15,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-25 16:52:15,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:15,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-25 16:52:15,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:15,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 16:52:15,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:15,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-11-25 16:52:15,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:15,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-25 16:52:15,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:15,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 16:52:15,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:15,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-11-25 16:52:15,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:15,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-25 16:52:15,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:15,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-25 16:52:15,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:15,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-25 16:52:15,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:15,661 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 16:52:15,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:52:15,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113265248] [2022-11-25 16:52:15,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113265248] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 16:52:15,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1235686511] [2022-11-25 16:52:15,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:52:15,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:52:15,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:52:15,669 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:52:15,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 16:52:16,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:16,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 1365 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-25 16:52:16,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:52:16,729 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 16:52:16,729 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 16:52:17,024 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 16:52:17,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1235686511] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 16:52:17,025 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 16:52:17,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12, 12] total 26 [2022-11-25 16:52:17,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445290107] [2022-11-25 16:52:17,026 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 16:52:17,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-25 16:52:17,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:52:17,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-25 16:52:17,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=596, Unknown=0, NotChecked=0, Total=650 [2022-11-25 16:52:17,028 INFO L87 Difference]: Start difference. First operand 3879 states and 5379 transitions. Second operand has 26 states, 26 states have (on average 3.769230769230769) internal successors, (98), 16 states have internal predecessors, (98), 5 states have call successors, (19), 6 states have call predecessors, (19), 9 states have return successors, (19), 10 states have call predecessors, (19), 5 states have call successors, (19) [2022-11-25 16:52:25,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:52:25,701 INFO L93 Difference]: Finished difference Result 11133 states and 16255 transitions. [2022-11-25 16:52:25,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-25 16:52:25,702 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.769230769230769) internal successors, (98), 16 states have internal predecessors, (98), 5 states have call successors, (19), 6 states have call predecessors, (19), 9 states have return successors, (19), 10 states have call predecessors, (19), 5 states have call successors, (19) Word has length 94 [2022-11-25 16:52:25,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:52:25,725 INFO L225 Difference]: With dead ends: 11133 [2022-11-25 16:52:25,726 INFO L226 Difference]: Without dead ends: 7266 [2022-11-25 16:52:25,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=177, Invalid=1715, Unknown=0, NotChecked=0, Total=1892 [2022-11-25 16:52:25,737 INFO L413 NwaCegarLoop]: 796 mSDtfsCounter, 1034 mSDsluCounter, 12665 mSDsCounter, 0 mSdLazyCounter, 7921 mSolverCounterSat, 544 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1096 SdHoareTripleChecker+Valid, 13461 SdHoareTripleChecker+Invalid, 8465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 544 IncrementalHoareTripleChecker+Valid, 7921 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-11-25 16:52:25,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1096 Valid, 13461 Invalid, 8465 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [544 Valid, 7921 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2022-11-25 16:52:25,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7266 states. [2022-11-25 16:52:26,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7266 to 3833. [2022-11-25 16:52:26,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3833 states, 2762 states have (on average 1.2617668356263576) internal successors, (3485), 2796 states have internal predecessors, (3485), 834 states have call successors, (834), 215 states have call predecessors, (834), 236 states have return successors, (952), 835 states have call predecessors, (952), 828 states have call successors, (952) [2022-11-25 16:52:26,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3833 states to 3833 states and 5271 transitions. [2022-11-25 16:52:26,209 INFO L78 Accepts]: Start accepts. Automaton has 3833 states and 5271 transitions. Word has length 94 [2022-11-25 16:52:26,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:52:26,209 INFO L495 AbstractCegarLoop]: Abstraction has 3833 states and 5271 transitions. [2022-11-25 16:52:26,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.769230769230769) internal successors, (98), 16 states have internal predecessors, (98), 5 states have call successors, (19), 6 states have call predecessors, (19), 9 states have return successors, (19), 10 states have call predecessors, (19), 5 states have call successors, (19) [2022-11-25 16:52:26,210 INFO L276 IsEmpty]: Start isEmpty. Operand 3833 states and 5271 transitions. [2022-11-25 16:52:26,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-11-25 16:52:26,213 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:52:26,213 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-25 16:52:26,233 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-25 16:52:26,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-25 16:52:26,422 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:52:26,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:52:26,423 INFO L85 PathProgramCache]: Analyzing trace with hash -448437055, now seen corresponding path program 1 times [2022-11-25 16:52:26,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:52:26,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308587606] [2022-11-25 16:52:26,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:52:26,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:52:26,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:26,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 16:52:26,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:26,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-25 16:52:26,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:26,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-25 16:52:26,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:26,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 16:52:26,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:26,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-11-25 16:52:26,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:27,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-25 16:52:27,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:27,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 16:52:27,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:27,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-11-25 16:52:27,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:27,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-25 16:52:27,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:27,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-25 16:52:27,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:27,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-25 16:52:27,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:27,134 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-25 16:52:27,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:52:27,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308587606] [2022-11-25 16:52:27,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308587606] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:52:27,136 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:52:27,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-25 16:52:27,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786144157] [2022-11-25 16:52:27,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:52:27,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 16:52:27,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:52:27,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 16:52:27,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-11-25 16:52:27,139 INFO L87 Difference]: Start difference. First operand 3833 states and 5271 transitions. Second operand has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 9 states have internal predecessors, (67), 6 states have call successors, (11), 6 states have call predecessors, (11), 3 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2022-11-25 16:52:31,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:52:31,801 INFO L93 Difference]: Finished difference Result 10144 states and 13936 transitions. [2022-11-25 16:52:31,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-25 16:52:31,802 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 9 states have internal predecessors, (67), 6 states have call successors, (11), 6 states have call predecessors, (11), 3 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) Word has length 96 [2022-11-25 16:52:31,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:52:31,828 INFO L225 Difference]: With dead ends: 10144 [2022-11-25 16:52:31,828 INFO L226 Difference]: Without dead ends: 8384 [2022-11-25 16:52:31,835 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420 [2022-11-25 16:52:31,836 INFO L413 NwaCegarLoop]: 658 mSDtfsCounter, 1927 mSDsluCounter, 2846 mSDsCounter, 0 mSdLazyCounter, 2801 mSolverCounterSat, 838 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2041 SdHoareTripleChecker+Valid, 3504 SdHoareTripleChecker+Invalid, 3639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 838 IncrementalHoareTripleChecker+Valid, 2801 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-25 16:52:31,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2041 Valid, 3504 Invalid, 3639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [838 Valid, 2801 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-11-25 16:52:31,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8384 states. [2022-11-25 16:52:32,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8384 to 8132. [2022-11-25 16:52:32,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8132 states, 5885 states have (on average 1.2677994902293968) internal successors, (7461), 5936 states have internal predecessors, (7461), 1737 states have call successors, (1737), 461 states have call predecessors, (1737), 509 states have return successors, (1983), 1758 states have call predecessors, (1983), 1731 states have call successors, (1983) [2022-11-25 16:52:32,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8132 states to 8132 states and 11181 transitions. [2022-11-25 16:52:32,602 INFO L78 Accepts]: Start accepts. Automaton has 8132 states and 11181 transitions. Word has length 96 [2022-11-25 16:52:32,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:52:32,603 INFO L495 AbstractCegarLoop]: Abstraction has 8132 states and 11181 transitions. [2022-11-25 16:52:32,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 9 states have internal predecessors, (67), 6 states have call successors, (11), 6 states have call predecessors, (11), 3 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2022-11-25 16:52:32,603 INFO L276 IsEmpty]: Start isEmpty. Operand 8132 states and 11181 transitions. [2022-11-25 16:52:32,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-25 16:52:32,606 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:52:32,607 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:52:32,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-25 16:52:32,607 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:52:32,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:52:32,608 INFO L85 PathProgramCache]: Analyzing trace with hash 832679025, now seen corresponding path program 1 times [2022-11-25 16:52:32,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:52:32,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022866051] [2022-11-25 16:52:32,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:52:32,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:52:32,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:32,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 16:52:32,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:32,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-25 16:52:32,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:32,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-25 16:52:32,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:32,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 16:52:32,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:32,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-11-25 16:52:32,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:32,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-25 16:52:32,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:33,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 16:52:33,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:33,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-11-25 16:52:33,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:33,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-25 16:52:33,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:33,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-25 16:52:33,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:33,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-25 16:52:33,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:33,148 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 16:52:33,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:52:33,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022866051] [2022-11-25 16:52:33,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022866051] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:52:33,149 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:52:33,150 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-25 16:52:33,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801424309] [2022-11-25 16:52:33,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:52:33,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-25 16:52:33,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:52:33,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-25 16:52:33,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-11-25 16:52:33,152 INFO L87 Difference]: Start difference. First operand 8132 states and 11181 transitions. Second operand has 14 states, 14 states have (on average 5.214285714285714) internal successors, (73), 7 states have internal predecessors, (73), 3 states have call successors, (11), 6 states have call predecessors, (11), 4 states have return successors, (11), 5 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-25 16:52:38,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:52:38,112 INFO L93 Difference]: Finished difference Result 17611 states and 24834 transitions. [2022-11-25 16:52:38,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 16:52:38,113 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.214285714285714) internal successors, (73), 7 states have internal predecessors, (73), 3 states have call successors, (11), 6 states have call predecessors, (11), 4 states have return successors, (11), 5 states have call predecessors, (11), 3 states have call successors, (11) Word has length 97 [2022-11-25 16:52:38,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:52:38,141 INFO L225 Difference]: With dead ends: 17611 [2022-11-25 16:52:38,141 INFO L226 Difference]: Without dead ends: 10847 [2022-11-25 16:52:38,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=360, Unknown=0, NotChecked=0, Total=420 [2022-11-25 16:52:38,157 INFO L413 NwaCegarLoop]: 672 mSDtfsCounter, 470 mSDsluCounter, 5629 mSDsCounter, 0 mSdLazyCounter, 3284 mSolverCounterSat, 198 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 547 SdHoareTripleChecker+Valid, 6301 SdHoareTripleChecker+Invalid, 3482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 198 IncrementalHoareTripleChecker+Valid, 3284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-11-25 16:52:38,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [547 Valid, 6301 Invalid, 3482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [198 Valid, 3284 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-11-25 16:52:38,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10847 states. [2022-11-25 16:52:39,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10847 to 8126. [2022-11-25 16:52:39,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8126 states, 5879 states have (on average 1.2639904745705053) internal successors, (7431), 5933 states have internal predecessors, (7431), 1737 states have call successors, (1737), 461 states have call predecessors, (1737), 509 states have return successors, (1983), 1755 states have call predecessors, (1983), 1731 states have call successors, (1983) [2022-11-25 16:52:39,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8126 states to 8126 states and 11151 transitions. [2022-11-25 16:52:39,204 INFO L78 Accepts]: Start accepts. Automaton has 8126 states and 11151 transitions. Word has length 97 [2022-11-25 16:52:39,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:52:39,205 INFO L495 AbstractCegarLoop]: Abstraction has 8126 states and 11151 transitions. [2022-11-25 16:52:39,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.214285714285714) internal successors, (73), 7 states have internal predecessors, (73), 3 states have call successors, (11), 6 states have call predecessors, (11), 4 states have return successors, (11), 5 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-25 16:52:39,205 INFO L276 IsEmpty]: Start isEmpty. Operand 8126 states and 11151 transitions. [2022-11-25 16:52:39,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-11-25 16:52:39,209 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:52:39,209 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:52:39,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-25 16:52:39,209 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:52:39,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:52:39,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1118058599, now seen corresponding path program 1 times [2022-11-25 16:52:39,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:52:39,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320633438] [2022-11-25 16:52:39,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:52:39,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:52:39,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:39,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 16:52:39,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:39,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-25 16:52:39,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:39,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-25 16:52:39,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:39,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-25 16:52:39,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:39,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-25 16:52:39,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:39,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-25 16:52:39,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:39,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-25 16:52:39,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:39,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 16:52:39,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:39,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-11-25 16:52:39,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:39,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-25 16:52:39,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:39,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-25 16:52:39,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:39,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-25 16:52:39,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:39,673 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-25 16:52:39,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:52:39,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320633438] [2022-11-25 16:52:39,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320633438] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 16:52:39,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [330495614] [2022-11-25 16:52:39,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:52:39,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:52:39,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:52:39,679 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:52:39,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 16:52:40,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:40,359 INFO L263 TraceCheckSpWp]: Trace formula consists of 1583 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 16:52:40,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:52:40,394 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-25 16:52:40,397 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 16:52:40,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [330495614] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:52:40,397 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 16:52:40,397 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-11-25 16:52:40,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552054269] [2022-11-25 16:52:40,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:52:40,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 16:52:40,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:52:40,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 16:52:40,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-11-25 16:52:40,405 INFO L87 Difference]: Start difference. First operand 8126 states and 11151 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-25 16:52:41,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:52:41,052 INFO L93 Difference]: Finished difference Result 16288 states and 22354 transitions. [2022-11-25 16:52:41,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 16:52:41,053 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 108 [2022-11-25 16:52:41,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:52:41,074 INFO L225 Difference]: With dead ends: 16288 [2022-11-25 16:52:41,074 INFO L226 Difference]: Without dead ends: 8174 [2022-11-25 16:52:41,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-11-25 16:52:41,086 INFO L413 NwaCegarLoop]: 543 mSDtfsCounter, 1 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1083 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 16:52:41,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1083 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 16:52:41,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8174 states. [2022-11-25 16:52:41,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8174 to 8158. [2022-11-25 16:52:41,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8158 states, 5911 states have (on average 1.2625613263407207) internal successors, (7463), 5965 states have internal predecessors, (7463), 1737 states have call successors, (1737), 461 states have call predecessors, (1737), 509 states have return successors, (1983), 1755 states have call predecessors, (1983), 1731 states have call successors, (1983) [2022-11-25 16:52:41,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8158 states to 8158 states and 11183 transitions. [2022-11-25 16:52:41,955 INFO L78 Accepts]: Start accepts. Automaton has 8158 states and 11183 transitions. Word has length 108 [2022-11-25 16:52:41,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:52:41,955 INFO L495 AbstractCegarLoop]: Abstraction has 8158 states and 11183 transitions. [2022-11-25 16:52:41,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-25 16:52:41,956 INFO L276 IsEmpty]: Start isEmpty. Operand 8158 states and 11183 transitions. [2022-11-25 16:52:41,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-11-25 16:52:41,959 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:52:41,960 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:52:41,970 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-25 16:52:42,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:52:42,171 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:52:42,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:52:42,171 INFO L85 PathProgramCache]: Analyzing trace with hash 920282283, now seen corresponding path program 1 times [2022-11-25 16:52:42,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:52:42,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006169060] [2022-11-25 16:52:42,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:52:42,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:52:42,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:42,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 16:52:42,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:42,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 16:52:42,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:42,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 16:52:42,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:42,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 16:52:42,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:42,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 16:52:42,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:42,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-25 16:52:42,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:42,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 16:52:42,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:42,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-11-25 16:52:42,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:42,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-25 16:52:42,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:42,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 16:52:42,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:42,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-11-25 16:52:42,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:42,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-25 16:52:42,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:42,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-25 16:52:42,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:42,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-25 16:52:42,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:42,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-25 16:52:42,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:42,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-25 16:52:42,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:42,980 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-25 16:52:42,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:52:42,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006169060] [2022-11-25 16:52:42,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006169060] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:52:42,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:52:42,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-25 16:52:42,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130013296] [2022-11-25 16:52:42,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:52:42,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 16:52:42,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:52:42,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 16:52:42,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-11-25 16:52:42,984 INFO L87 Difference]: Start difference. First operand 8158 states and 11183 transitions. Second operand has 10 states, 10 states have (on average 8.0) internal successors, (80), 4 states have internal predecessors, (80), 3 states have call successors, (17), 7 states have call predecessors, (17), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-25 16:52:51,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:52:51,589 INFO L93 Difference]: Finished difference Result 18980 states and 26789 transitions. [2022-11-25 16:52:51,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 16:52:51,590 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.0) internal successors, (80), 4 states have internal predecessors, (80), 3 states have call successors, (17), 7 states have call predecessors, (17), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 120 [2022-11-25 16:52:51,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:52:51,623 INFO L225 Difference]: With dead ends: 18980 [2022-11-25 16:52:51,623 INFO L226 Difference]: Without dead ends: 12202 [2022-11-25 16:52:51,641 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2022-11-25 16:52:51,642 INFO L413 NwaCegarLoop]: 674 mSDtfsCounter, 520 mSDsluCounter, 2901 mSDsCounter, 0 mSdLazyCounter, 1812 mSolverCounterSat, 304 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 588 SdHoareTripleChecker+Valid, 3575 SdHoareTripleChecker+Invalid, 2116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 304 IncrementalHoareTripleChecker+Valid, 1812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-11-25 16:52:51,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [588 Valid, 3575 Invalid, 2116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [304 Valid, 1812 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time] [2022-11-25 16:52:51,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12202 states. [2022-11-25 16:52:52,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12202 to 7987. [2022-11-25 16:52:52,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7987 states, 5818 states have (on average 1.2619456858026814) internal successors, (7342), 5860 states have internal predecessors, (7342), 1675 states have call successors, (1675), 445 states have call predecessors, (1675), 493 states have return successors, (1921), 1705 states have call predecessors, (1921), 1669 states have call successors, (1921) [2022-11-25 16:52:52,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7987 states to 7987 states and 10938 transitions. [2022-11-25 16:52:52,561 INFO L78 Accepts]: Start accepts. Automaton has 7987 states and 10938 transitions. Word has length 120 [2022-11-25 16:52:52,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:52:52,561 INFO L495 AbstractCegarLoop]: Abstraction has 7987 states and 10938 transitions. [2022-11-25 16:52:52,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.0) internal successors, (80), 4 states have internal predecessors, (80), 3 states have call successors, (17), 7 states have call predecessors, (17), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-25 16:52:52,561 INFO L276 IsEmpty]: Start isEmpty. Operand 7987 states and 10938 transitions. [2022-11-25 16:52:52,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-11-25 16:52:52,564 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:52:52,564 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-25 16:52:52,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-25 16:52:52,565 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:52:52,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:52:52,565 INFO L85 PathProgramCache]: Analyzing trace with hash -2053204873, now seen corresponding path program 1 times [2022-11-25 16:52:52,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:52:52,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751901337] [2022-11-25 16:52:52,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:52:52,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:52:52,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:53,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 16:52:53,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:53,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-25 16:52:53,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:53,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-25 16:52:53,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:53,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 16:52:53,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:53,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-11-25 16:52:53,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:53,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-25 16:52:53,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:53,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 16:52:53,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:53,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-11-25 16:52:53,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:53,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-25 16:52:53,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:53,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-25 16:52:53,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:53,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-25 16:52:53,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:53,396 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 16:52:53,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:52:53,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751901337] [2022-11-25 16:52:53,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751901337] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:52:53,397 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:52:53,397 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-25 16:52:53,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821582774] [2022-11-25 16:52:53,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:52:53,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-25 16:52:53,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:52:53,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-25 16:52:53,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2022-11-25 16:52:53,400 INFO L87 Difference]: Start difference. First operand 7987 states and 10938 transitions. Second operand has 15 states, 15 states have (on average 5.333333333333333) internal successors, (80), 8 states have internal predecessors, (80), 4 states have call successors, (11), 6 states have call predecessors, (11), 5 states have return successors, (11), 6 states have call predecessors, (11), 4 states have call successors, (11) [2022-11-25 16:52:58,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:52:58,095 INFO L93 Difference]: Finished difference Result 15028 states and 21199 transitions. [2022-11-25 16:52:58,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-25 16:52:58,095 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.333333333333333) internal successors, (80), 8 states have internal predecessors, (80), 4 states have call successors, (11), 6 states have call predecessors, (11), 5 states have return successors, (11), 6 states have call predecessors, (11), 4 states have call successors, (11) Word has length 104 [2022-11-25 16:52:58,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:52:58,122 INFO L225 Difference]: With dead ends: 15028 [2022-11-25 16:52:58,122 INFO L226 Difference]: Without dead ends: 10127 [2022-11-25 16:52:58,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=131, Invalid=739, Unknown=0, NotChecked=0, Total=870 [2022-11-25 16:52:58,136 INFO L413 NwaCegarLoop]: 665 mSDtfsCounter, 577 mSDsluCounter, 5353 mSDsCounter, 0 mSdLazyCounter, 3064 mSolverCounterSat, 291 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 654 SdHoareTripleChecker+Valid, 6018 SdHoareTripleChecker+Invalid, 3355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 291 IncrementalHoareTripleChecker+Valid, 3064 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-11-25 16:52:58,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [654 Valid, 6018 Invalid, 3355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [291 Valid, 3064 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-11-25 16:52:58,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10127 states. [2022-11-25 16:52:58,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10127 to 7133. [2022-11-25 16:52:58,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7133 states, 5203 states have (on average 1.2588891024408995) internal successors, (6550), 5251 states have internal predecessors, (6550), 1490 states have call successors, (1490), 403 states have call predecessors, (1490), 439 states have return successors, (1669), 1502 states have call predecessors, (1669), 1484 states have call successors, (1669) [2022-11-25 16:52:58,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7133 states to 7133 states and 9709 transitions. [2022-11-25 16:52:58,864 INFO L78 Accepts]: Start accepts. Automaton has 7133 states and 9709 transitions. Word has length 104 [2022-11-25 16:52:58,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:52:58,865 INFO L495 AbstractCegarLoop]: Abstraction has 7133 states and 9709 transitions. [2022-11-25 16:52:58,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.333333333333333) internal successors, (80), 8 states have internal predecessors, (80), 4 states have call successors, (11), 6 states have call predecessors, (11), 5 states have return successors, (11), 6 states have call predecessors, (11), 4 states have call successors, (11) [2022-11-25 16:52:58,865 INFO L276 IsEmpty]: Start isEmpty. Operand 7133 states and 9709 transitions. [2022-11-25 16:52:58,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-25 16:52:58,868 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:52:58,868 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:52:58,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-25 16:52:58,869 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:52:58,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:52:58,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1247847667, now seen corresponding path program 1 times [2022-11-25 16:52:58,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:52:58,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065114094] [2022-11-25 16:52:58,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:52:58,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:52:58,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:59,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 16:52:59,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:59,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-25 16:52:59,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:59,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-25 16:52:59,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:59,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-25 16:52:59,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:59,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-25 16:52:59,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:59,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-25 16:52:59,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:59,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-25 16:52:59,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:59,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 16:52:59,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:59,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-11-25 16:52:59,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:59,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-25 16:52:59,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:59,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-25 16:52:59,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:59,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-25 16:52:59,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:59,347 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-25 16:52:59,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:52:59,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065114094] [2022-11-25 16:52:59,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065114094] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 16:52:59,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1646746772] [2022-11-25 16:52:59,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:52:59,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:52:59,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:52:59,350 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:52:59,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 16:53:00,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:53:00,097 INFO L263 TraceCheckSpWp]: Trace formula consists of 1599 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 16:53:00,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:53:00,152 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-25 16:53:00,152 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 16:53:00,255 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-25 16:53:00,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1646746772] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 16:53:00,255 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 16:53:00,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 4, 4] total 13 [2022-11-25 16:53:00,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319500100] [2022-11-25 16:53:00,256 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 16:53:00,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 16:53:00,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:53:00,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 16:53:00,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2022-11-25 16:53:00,260 INFO L87 Difference]: Start difference. First operand 7133 states and 9709 transitions. Second operand has 13 states, 13 states have (on average 8.538461538461538) internal successors, (111), 9 states have internal predecessors, (111), 3 states have call successors, (27), 5 states have call predecessors, (27), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-25 16:53:05,859 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 16:53:07,869 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 16:53:08,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:53:08,128 INFO L93 Difference]: Finished difference Result 14665 states and 19980 transitions. [2022-11-25 16:53:08,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 16:53:08,129 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 8.538461538461538) internal successors, (111), 9 states have internal predecessors, (111), 3 states have call successors, (27), 5 states have call predecessors, (27), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 111 [2022-11-25 16:53:08,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:53:08,156 INFO L225 Difference]: With dead ends: 14665 [2022-11-25 16:53:08,157 INFO L226 Difference]: Without dead ends: 7538 [2022-11-25 16:53:08,177 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2022-11-25 16:53:08,178 INFO L413 NwaCegarLoop]: 411 mSDtfsCounter, 250 mSDsluCounter, 2679 mSDsCounter, 0 mSdLazyCounter, 1922 mSolverCounterSat, 210 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 3090 SdHoareTripleChecker+Invalid, 2133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 210 IncrementalHoareTripleChecker+Valid, 1922 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:53:08,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 3090 Invalid, 2133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [210 Valid, 1922 Invalid, 1 Unknown, 0 Unchecked, 7.1s Time] [2022-11-25 16:53:08,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7538 states. [2022-11-25 16:53:08,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7538 to 7268. [2022-11-25 16:53:08,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7268 states, 5338 states have (on average 1.252341701011615) internal successors, (6685), 5383 states have internal predecessors, (6685), 1490 states have call successors, (1490), 403 states have call predecessors, (1490), 439 states have return successors, (1667), 1505 states have call predecessors, (1667), 1484 states have call successors, (1667) [2022-11-25 16:53:08,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7268 states to 7268 states and 9842 transitions. [2022-11-25 16:53:08,897 INFO L78 Accepts]: Start accepts. Automaton has 7268 states and 9842 transitions. Word has length 111 [2022-11-25 16:53:08,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:53:08,898 INFO L495 AbstractCegarLoop]: Abstraction has 7268 states and 9842 transitions. [2022-11-25 16:53:08,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.538461538461538) internal successors, (111), 9 states have internal predecessors, (111), 3 states have call successors, (27), 5 states have call predecessors, (27), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-25 16:53:08,898 INFO L276 IsEmpty]: Start isEmpty. Operand 7268 states and 9842 transitions. [2022-11-25 16:53:08,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-11-25 16:53:08,901 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:53:08,901 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:53:08,911 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 16:53:09,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-11-25 16:53:09,110 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:53:09,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:53:09,111 INFO L85 PathProgramCache]: Analyzing trace with hash 800394672, now seen corresponding path program 1 times [2022-11-25 16:53:09,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:53:09,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915482541] [2022-11-25 16:53:09,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:53:09,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:53:09,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:53:09,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 16:53:09,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:53:09,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 16:53:09,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:53:09,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 16:53:09,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:53:09,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 16:53:09,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:53:09,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 16:53:09,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:53:09,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-25 16:53:09,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:53:09,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 16:53:09,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:53:09,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-11-25 16:53:09,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:53:09,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-25 16:53:09,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:53:09,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 16:53:09,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:53:09,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-11-25 16:53:09,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:53:09,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-25 16:53:09,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:53:09,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-25 16:53:09,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:53:09,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-25 16:53:09,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:53:09,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-25 16:53:09,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:53:09,771 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 16:53:09,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:53:09,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915482541] [2022-11-25 16:53:09,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915482541] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:53:09,772 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:53:09,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-25 16:53:09,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613056878] [2022-11-25 16:53:09,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:53:09,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-25 16:53:09,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:53:09,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-25 16:53:09,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2022-11-25 16:53:09,775 INFO L87 Difference]: Start difference. First operand 7268 states and 9842 transitions. Second operand has 15 states, 15 states have (on average 5.933333333333334) internal successors, (89), 7 states have internal predecessors, (89), 3 states have call successors, (15), 7 states have call predecessors, (15), 4 states have return successors, (15), 5 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-25 16:53:14,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:53:14,728 INFO L93 Difference]: Finished difference Result 13334 states and 18523 transitions. [2022-11-25 16:53:14,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 16:53:14,728 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.933333333333334) internal successors, (89), 7 states have internal predecessors, (89), 3 states have call successors, (15), 7 states have call predecessors, (15), 4 states have return successors, (15), 5 states have call predecessors, (15), 3 states have call successors, (15) Word has length 121 [2022-11-25 16:53:14,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:53:14,753 INFO L225 Difference]: With dead ends: 13334 [2022-11-25 16:53:14,754 INFO L226 Difference]: Without dead ends: 10002 [2022-11-25 16:53:14,761 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=84, Invalid=516, Unknown=0, NotChecked=0, Total=600 [2022-11-25 16:53:14,762 INFO L413 NwaCegarLoop]: 635 mSDtfsCounter, 680 mSDsluCounter, 4865 mSDsCounter, 0 mSdLazyCounter, 3218 mSolverCounterSat, 477 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 757 SdHoareTripleChecker+Valid, 5500 SdHoareTripleChecker+Invalid, 3695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 477 IncrementalHoareTripleChecker+Valid, 3218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-11-25 16:53:14,762 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [757 Valid, 5500 Invalid, 3695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [477 Valid, 3218 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-11-25 16:53:14,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10002 states. [2022-11-25 16:53:15,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10002 to 7266. [2022-11-25 16:53:15,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7266 states, 5338 states have (on average 1.2497189958786061) internal successors, (6671), 5381 states have internal predecessors, (6671), 1488 states have call successors, (1488), 403 states have call predecessors, (1488), 439 states have return successors, (1665), 1505 states have call predecessors, (1665), 1482 states have call successors, (1665) [2022-11-25 16:53:15,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7266 states to 7266 states and 9824 transitions. [2022-11-25 16:53:15,568 INFO L78 Accepts]: Start accepts. Automaton has 7266 states and 9824 transitions. Word has length 121 [2022-11-25 16:53:15,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:53:15,568 INFO L495 AbstractCegarLoop]: Abstraction has 7266 states and 9824 transitions. [2022-11-25 16:53:15,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.933333333333334) internal successors, (89), 7 states have internal predecessors, (89), 3 states have call successors, (15), 7 states have call predecessors, (15), 4 states have return successors, (15), 5 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-25 16:53:15,568 INFO L276 IsEmpty]: Start isEmpty. Operand 7266 states and 9824 transitions. [2022-11-25 16:53:15,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-11-25 16:53:15,570 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:53:15,571 INFO L195 NwaCegarLoop]: trace histogram [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 16:53:15,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-25 16:53:15,571 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:53:15,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:53:15,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1117139730, now seen corresponding path program 1 times [2022-11-25 16:53:15,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:53:15,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393255470] [2022-11-25 16:53:15,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:53:15,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:53:15,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 16:53:15,778 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 16:53:15,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 16:53:16,018 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 16:53:16,018 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 16:53:16,019 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-25 16:53:16,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-25 16:53:16,024 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 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 16:53:16,028 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 16:53:16,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 04:53:16 BoogieIcfgContainer [2022-11-25 16:53:16,180 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 16:53:16,180 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 16:53:16,180 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 16:53:16,181 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 16:53:16,181 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:51:19" (3/4) ... [2022-11-25 16:53:16,184 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 16:53:16,184 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 16:53:16,185 INFO L158 Benchmark]: Toolchain (without parser) took 122965.33ms. Allocated memory was 146.8MB in the beginning and 1.6GB in the end (delta: 1.4GB). Free memory was 103.8MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 331.8MB. Max. memory is 16.1GB. [2022-11-25 16:53:16,185 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 146.8MB. Free memory is still 115.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 16:53:16,186 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2382.56ms. Allocated memory was 146.8MB in the beginning and 203.4MB in the end (delta: 56.6MB). Free memory was 103.4MB in the beginning and 104.6MB in the end (delta: -1.2MB). Peak memory consumption was 87.4MB. Max. memory is 16.1GB. [2022-11-25 16:53:16,186 INFO L158 Benchmark]: Boogie Procedure Inliner took 163.74ms. Allocated memory is still 203.4MB. Free memory was 104.6MB in the beginning and 95.1MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-25 16:53:16,186 INFO L158 Benchmark]: Boogie Preprocessor took 92.42ms. Allocated memory is still 203.4MB. Free memory was 95.1MB in the beginning and 85.7MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-25 16:53:16,187 INFO L158 Benchmark]: RCFGBuilder took 3564.94ms. Allocated memory is still 203.4MB. Free memory was 85.7MB in the beginning and 76.7MB in the end (delta: 9.0MB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. [2022-11-25 16:53:16,187 INFO L158 Benchmark]: TraceAbstraction took 116748.18ms. Allocated memory was 203.4MB in the beginning and 1.6GB in the end (delta: 1.4GB). Free memory was 75.7MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 244.9MB. Max. memory is 16.1GB. [2022-11-25 16:53:16,187 INFO L158 Benchmark]: Witness Printer took 4.30ms. Allocated memory is still 1.6GB. Free memory is still 1.2GB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 16:53:16,189 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 146.8MB. Free memory is still 115.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2382.56ms. Allocated memory was 146.8MB in the beginning and 203.4MB in the end (delta: 56.6MB). Free memory was 103.4MB in the beginning and 104.6MB in the end (delta: -1.2MB). Peak memory consumption was 87.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 163.74ms. Allocated memory is still 203.4MB. Free memory was 104.6MB in the beginning and 95.1MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 92.42ms. Allocated memory is still 203.4MB. Free memory was 95.1MB in the beginning and 85.7MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * RCFGBuilder took 3564.94ms. Allocated memory is still 203.4MB. Free memory was 85.7MB in the beginning and 76.7MB in the end (delta: 9.0MB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. * TraceAbstraction took 116748.18ms. Allocated memory was 203.4MB in the beginning and 1.6GB in the end (delta: 1.4GB). Free memory was 75.7MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 244.9MB. Max. memory is 16.1GB. * Witness Printer took 4.30ms. Allocated memory is still 1.6GB. Free memory is still 1.2GB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 6754]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 6104. Possible FailurePath: [L5149] static struct lock_class_key __key___7 ; [L5150] static struct lock_class_key __key___8 ; [L5290-L5303] static char const __mod_author31[46] __attribute__((__used__, __unused__, __section__(".modinfo"), __aligned__(1))) = { (char const )'a', (char const )'u', (char const )'t', (char const )'h', (char const )'o', (char const )'r', (char const )'=', (char const )'S', (char const )'e', (char const )'b', (char const )'a', (char const )'s', (char const )'t', (char const )'i', (char const )'a', (char const )'n', (char const )' ', (char const )'H', (char const )'a', (char const )'a', (char const )'s', (char const )' ', (char const )'<', (char const )'h', (char const )'a', (char const )'a', (char const )'s', (char const )'@', (char const )'e', (char const )'m', (char const )'s', (char const )'-', (char const )'w', (char const )'u', (char const )'e', (char const )'n', (char const )'s', (char const )'c', (char const )'h', (char const )'e', (char const )'.', (char const )'c', (char const )'o', (char const )'m', (char const )'>', (char const )'\000'}; [L5304-L5323] static char const __mod_description32[70] __attribute__((__used__, __unused__, __section__(".modinfo"), __aligned__(1))) = { (char const )'d', (char const )'e', (char const )'s', (char const )'c', (char const )'r', (char const )'i', (char const )'p', (char const )'t', (char const )'i', (char const )'o', (char const )'n', (char const )'=', (char const )'C', (char const )'A', (char const )'N', (char const )' ', (char const )'d', (char const )'r', (char const )'i', (char const )'v', (char const )'e', (char const )'r', (char const )' ', (char const )'f', (char const )'o', (char const )'r', (char const )' ', (char const )'E', (char const )'M', (char const )'S', (char const )' ', (char const )'D', (char const )'r', (char const )'.', (char const )' ', (char const )'T', (char const )'h', (char const )'o', (char const )'m', (char const )'a', (char const )'s', (char const )' ', (char const )'W', (char const )'u', (char const )'e', (char const )'n', (char const )'s', (char const )'c', (char const )'h', (char const )'e', (char const )' ', (char const )'C', (char const )'A', (char const )'N', (char const )'/', (char const )'U', (char const )'S', (char const )'B', (char const )' ', (char const )'i', (char const )'n', (char const )'t', (char const )'e', (char const )'r', (char const )'f', (char const )'a', (char const )'c', (char const )'e', (char const )'s', (char const )'\000'}; [L5324-L5329] static char const __mod_license33[15] __attribute__((__used__, __unused__, __section__(".modinfo"), __aligned__(1))) = { (char const )'l', (char const )'i', (char const )'c', (char const )'e', (char const )'n', (char const )'s', (char const )'e', (char const )'=', (char const )'G', (char const )'P', (char const )'L', (char const )' ', (char const )'v', (char const )'2', (char const )'\000'}; [L5330-L5332] static struct usb_device_id ems_usb_table[1] = { {(__u16 )3, (__u16 )4822, (__u16 )1092, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}}; [L6247-L6287] static struct net_device_ops const ems_usb_netdev_ops = {(int (*)(struct net_device *dev ))0, (void (*)(struct net_device *dev ))0, & ems_usb_open, & ems_usb_close, & ems_usb_start_xmit, (u16 (*)(struct net_device *dev , struct sk_buff *skb ))0, (void (*)(struct net_device *dev , int flags ))0, (void (*)(struct net_device *dev ))0, (void (*)(struct net_device *dev ))0, (int (*)(struct net_device *dev , void *addr ))0, (int (*)(struct net_device *dev ))0, (int (*)(struct net_device *dev , struct ifreq *ifr , int cmd ))0, (int (*)(struct net_device *dev , struct ifmap *map ))0, (int (*)(struct net_device *dev , int new_mtu ))0, (int (*)(struct net_device *dev , struct neigh_parms * ))0, (void (*)(struct net_device *dev ))0, (struct rtnl_link_stats64 *(*)(struct net_device *dev , struct rtnl_link_stats64 *storage ))0, (struct net_device_stats *(*)(struct net_device *dev ))0, (void (*)(struct net_device *dev , struct vlan_group *grp ))0, (void (*)(struct net_device *dev , unsigned short vid ))0, (void (*)(struct net_device *dev , unsigned short vid ))0, (void (*)(struct net_device *dev ))0, (int (*)(struct net_device *dev , struct netpoll_info *info ))0, (void (*)(struct net_device *dev ))0, (int (*)(struct net_device *dev , int queue , u8 *mac ))0, (int (*)(struct net_device *dev , int queue , u16 vlan , u8 qos ))0, (int (*)(struct net_device *dev , int vf , int rate ))0, (int (*)(struct net_device *dev , int vf , struct ifla_vf_info *ivf ))0, (int (*)(struct net_device *dev , int vf , struct nlattr **port ))0, (int (*)(struct net_device *dev , int vf , struct sk_buff *skb ))0, (int (*)(struct net_device *dev , u8 tc ))0, (int (*)(struct net_device *dev ))0, (int (*)(struct net_device *dev ))0, (int (*)(struct net_device *dev , u16 xid , struct scatterlist *sgl , unsigned int sgc ))0, (int (*)(struct net_device *dev , u16 xid ))0, (int (*)(struct net_device *dev , u16 xid , struct scatterlist *sgl , unsigned int sgc ))0, (int (*)(struct net_device *dev , u64 *wwn , int type ))0, (int (*)(struct net_device *dev , struct sk_buff const *skb , u16 rxq_index , u32 flow_id ))0, (int (*)(struct net_device *dev , struct net_device *slave_dev ))0, (int (*)(struct net_device *dev , struct net_device *slave_dev ))0, (u32 (*)(struct net_device *dev , u32 features ))0, (int (*)(struct net_device *dev , u32 features ))0}; [L6288-L6292] static struct can_bittiming_const ems_usb_bittiming_const = {{(char )'e', (char )'m', (char )'s', (char )'_', (char )'u', (char )'s', (char )'b', (char )'\000', (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0}, (__u32 )1, (__u32 )16, (__u32 )1, (__u32 )8, (__u32 )4, (__u32 )1, (__u32 )64, (__u32 )1}; [L6543-L6561] static struct usb_driver ems_usb_driver = {"ems_usb", & ems_usb_probe, & ems_usb_disconnect, (int (*)(struct usb_interface *intf , unsigned int code , void *buf ))0, (int (*)(struct usb_interface *intf , pm_message_t message ))0, (int (*)(struct usb_interface *intf ))0, (int (*)(struct usb_interface *intf ))0, (int (*)(struct usb_interface *intf ))0, (int (*)(struct usb_interface *intf ))0, (struct usb_device_id const *)(ems_usb_table), {{{{{0U}, 0U, 0U, (void *)0, {(struct lock_class_key *)0, {(struct lock_class *)0, (struct lock_class *)0}, (char const *)0, 0, 0UL}}}}, {(struct list_head *)0, (struct list_head *)0}}, {{(char const *)0, (struct bus_type *)0, (struct module *)0, (char const *)0, (_Bool)0, (struct of_device_id const *)0, (int (*)(struct device *dev ))0, (int (*)(struct device *dev ))0, (void (*)(struct device *dev ))0, (int (*)(struct device *dev , pm_message_t state ))0, (int (*)(struct device *dev ))0, (struct attribute_group const **)0, (struct dev_pm_ops const *)0, (struct driver_private *)0}, 0}, 0U, 0U, 0U}; [L6614] int LDV_IN_INTERRUPT ; [L6615] static int res_ems_usb_open_10 ; [L6616] static int res_ems_usb_close_12 ; [L6617] static int res_ems_usb_probe_16 ; [L6767] int ldv_urb_state = 0; [L6768] int ldv_coherent_state = 0; VAL [__key___7={36:0}, __key___8={37:0}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=0, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6619] struct net_device *var_group1 ; [L6620] struct sk_buff *var_group2 ; [L6621] struct usb_interface *var_group3 ; [L6622] struct usb_device_id const *var_ems_usb_probe_16_p1 ; [L6623] int tmp___7 ; [L6624] int ldv_s_ems_usb_netdev_ops_net_device_ops ; [L6625] int ldv_s_ems_usb_driver_usb_driver ; [L6626] int tmp___8 ; [L6627] int tmp___9 ; [L6630] LDV_IN_INTERRUPT = 1 [L6631] FCALL ldv_initialize() [L6632] CALL, EXPR ems_usb_init() VAL [__key___7={36:0}, __key___8={37:0}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6565] int err ; [L6569] CALL, EXPR usb_register(& ems_usb_driver) [L5140] int tmp___7 ; [L5143] CALL, EXPR usb_register_driver(driver, & __this_module, "ems_usb") [L7025] return __VERIFIER_nondet_int(); [L5143] RET, EXPR usb_register_driver(driver, & __this_module, "ems_usb") [L5143] tmp___7 = usb_register_driver(driver, & __this_module, "ems_usb") [L5145] return (tmp___7); VAL [\result=0, __key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, driver={41:0}, driver={41:0}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, tmp___7=0] [L6569] RET, EXPR usb_register(& ems_usb_driver) [L6569] err = usb_register(& ems_usb_driver) [L6571] COND FALSE !(\read(err)) [L6578] return (0); VAL [\result=0, __key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, err=0, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6632] RET, EXPR ems_usb_init() VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_init()=0, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6632] tmp___7 = ems_usb_init() [L6634] COND FALSE !(\read(tmp___7)) [L6638] ldv_s_ems_usb_netdev_ops_net_device_ops = 0 [L6639] ldv_s_ems_usb_driver_usb_driver = 0 VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_s_ems_usb_driver_usb_driver=0, ldv_s_ems_usb_netdev_ops_net_device_ops=0, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, tmp___7=0] [L6641] COND TRUE 1 VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_s_ems_usb_driver_usb_driver=0, ldv_s_ems_usb_netdev_ops_net_device_ops=0, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, tmp___7=0] [L6644] tmp___9 = __VERIFIER_nondet_int() [L6646] COND TRUE \read(tmp___9) VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_s_ems_usb_driver_usb_driver=0, ldv_s_ems_usb_netdev_ops_net_device_ops=0, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, tmp___7=0, tmp___9=1] [L6655] tmp___8 = __VERIFIER_nondet_int() [L6657] COND FALSE !(tmp___8 == 0) VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_s_ems_usb_driver_usb_driver=0, ldv_s_ems_usb_netdev_ops_net_device_ops=0, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, tmp___7=0, tmp___8=2, tmp___9=1] [L6660] COND FALSE !(tmp___8 == 1) VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_s_ems_usb_driver_usb_driver=0, ldv_s_ems_usb_netdev_ops_net_device_ops=0, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, tmp___7=0, tmp___8=2, tmp___9=1] [L6663] COND TRUE tmp___8 == 2 VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_s_ems_usb_driver_usb_driver=0, ldv_s_ems_usb_netdev_ops_net_device_ops=0, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, tmp___7=0, tmp___8=2, tmp___9=1] [L6704] CALL ems_usb_start_xmit(var_group2, var_group1) [L6048] struct ems_usb *dev ; [L6049] void *tmp___7 ; [L6050] struct ems_tx_urb_context *context ; [L6051] struct net_device_stats *stats ; [L6052] struct can_frame *cf ; [L6053] struct ems_cpc_msg *msg ; [L6054] struct urb *urb ; [L6055] u8 *buf ; [L6056] int i ; [L6057] int err ; [L6058] size_t size ; [L6059] int tmp___8 ; [L6060] void *tmp___9 ; [L6061] unsigned int tmp___10 ; [L6062] int tmp___11 ; [L6063] long tmp___12 ; VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, netdev={0:-519}, netdev={0:-519}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, skb={18446744073709551622:0}, skb={18446744073709551622:0}] [L6066] CALL, EXPR netdev_priv((struct net_device const *)netdev) VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, dev={0:-519}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L4976] return ((void *)((char *)dev + ((sizeof(struct net_device ) + 31UL) & 0x0fffffffffffffe0UL))); VAL [\result={0:-520}, __key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, dev={0:-519}, dev={0:-519}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6066] RET, EXPR netdev_priv((struct net_device const *)netdev) VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, netdev={0:-519}, netdev={0:-519}, netdev_priv((struct net_device const *)netdev)={0:-520}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, skb={18446744073709551622:0}, skb={18446744073709551622:0}] [L6066] tmp___7 = netdev_priv((struct net_device const *)netdev) [L6067] dev = (struct ems_usb *)tmp___7 [L6068] context = (struct ems_tx_urb_context *)((void *)0) [L6069] stats = & netdev->stats [L6070] EXPR skb->data [L6070] cf = (struct can_frame *)skb->data [L6071] size = 15UL + sizeof(struct cpc_can_msg ) [L6072] CALL, EXPR can_dropped_invalid_skb(netdev, skb) [L5252] struct can_frame const *cf ; [L5253] int tmp___7 ; [L5254] long tmp___8 ; [L5256] EXPR skb->data [L5256] cf = (struct can_frame const *)((struct can_frame *)skb->data) [L5257] EXPR skb->len VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, cf={-18446744073709551617:-8}, dev={0:-519}, dev={0:-519}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, skb={18446744073709551622:0}, skb={18446744073709551622:0}, skb->len=4294967309] [L5257] COND FALSE !((unsigned long )skb->len != sizeof(*cf)) [L5260] EXPR cf->can_dlc VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, cf={-18446744073709551617:-8}, cf->can_dlc=0, dev={0:-519}, dev={0:-519}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, skb={18446744073709551622:0}, skb={18446744073709551622:0}] [L5260] COND FALSE !((int const )cf->can_dlc > 8) [L5263] tmp___7 = 0 VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, cf={-18446744073709551617:-8}, dev={0:-519}, dev={0:-519}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, skb={18446744073709551622:0}, skb={18446744073709551622:0}, tmp___7=0] [L5266] tmp___8 = __builtin_expect((long )tmp___7, 0L) VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, cf={-18446744073709551617:-8}, dev={0:-519}, dev={0:-519}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, skb={18446744073709551622:0}, skb={18446744073709551622:0}, tmp___7=0, tmp___8=0] [L5268] COND FALSE !(\read(tmp___8)) [L5276] return (0); VAL [\result=0, __key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, cf={-18446744073709551617:-8}, dev={0:-519}, dev={0:-519}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, skb={18446744073709551622:0}, skb={18446744073709551622:0}, tmp___7=0, tmp___8=0] [L6072] RET, EXPR can_dropped_invalid_skb(netdev, skb) [L6072] tmp___8 = can_dropped_invalid_skb(netdev, skb) [L6074] COND FALSE !(\read(tmp___8)) VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, cf={-18446744073709551617:-8}, context={0:0}, dev={0:-520}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, netdev={0:-519}, netdev={0:-519}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, skb={18446744073709551622:0}, skb={18446744073709551622:0}, stats={0:-331}, tmp___7={0:-520}, tmp___8=0] [L6079] CALL, EXPR usb_alloc_urb(0, 32U) VAL [\old(iso_packets)=0, \old(ldv_urb_state)=0, \old(mem_flags)=32, __key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6830] void *arbitrary_memory ; [L6831] void *tmp___7 ; VAL [\old(iso_packets)=0, \old(ldv_urb_state)=0, \old(mem_flags)=32, __key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, iso_packets=0, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, mem_flags=32, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6834] COND TRUE 1 VAL [\old(iso_packets)=0, \old(ldv_urb_state)=0, \old(mem_flags)=32, __key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, iso_packets=0, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, mem_flags=32, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6837] CALL, EXPR ldv_undefined_pointer() VAL [\old(ldv_urb_state)=0, __key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6982] CALL, EXPR ldv_malloc(0UL) VAL [\old(ldv_urb_state)=0, \old(size)=0, __key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6911] COND FALSE !(__VERIFIER_nondet_bool()) [L6912] return malloc(size); [L6982] RET, EXPR ldv_malloc(0UL) VAL [\old(ldv_urb_state)=0, __key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_malloc(0UL)={-3:0}, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6982] return ldv_malloc(0UL); [L6837] RET, EXPR ldv_undefined_pointer() VAL [\old(iso_packets)=0, \old(ldv_urb_state)=0, \old(mem_flags)=32, __key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, iso_packets=0, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_undefined_pointer()={-3:0}, ldv_urb_state=0, mem_flags=32, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6837] tmp___7 = ldv_undefined_pointer() [L6838] arbitrary_memory = tmp___7 VAL [\old(iso_packets)=0, \old(ldv_urb_state)=0, \old(mem_flags)=32, __key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, arbitrary_memory={-3:0}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, iso_packets=0, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, mem_flags=32, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, tmp___7={-3:0}] [L6840] COND FALSE !(! arbitrary_memory) [L6844] ldv_urb_state = ldv_urb_state + 1 [L6845] return ((struct urb *)arbitrary_memory); VAL [\old(iso_packets)=0, \old(ldv_urb_state)=0, \old(mem_flags)=32, \result={-3:0}, __key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, arbitrary_memory={-3:0}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, iso_packets=0, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=1, mem_flags=32, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, tmp___7={-3:0}] [L6079] RET, EXPR usb_alloc_urb(0, 32U) VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, cf={-18446744073709551617:-8}, context={0:0}, dev={0:-520}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=1, netdev={0:-519}, netdev={0:-519}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, skb={18446744073709551622:0}, skb={18446744073709551622:0}, stats={0:-331}, tmp___7={0:-520}, tmp___8=0, usb_alloc_urb(0, 32U)={-3:0}] [L6079] urb = usb_alloc_urb(0, 32U) [L6081] COND FALSE !(! urb) [L6089] EXPR dev->udev VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, cf={-18446744073709551617:-8}, context={0:0}, dev={0:-520}, dev->udev={18446744073709551625:18446744073709551627}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=1, netdev={0:-519}, netdev={0:-519}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, skb={18446744073709551622:0}, skb={18446744073709551622:0}, stats={0:-331}, tmp___7={0:-520}, tmp___8=0, urb={-3:0}] [L6089] CALL, EXPR usb_alloc_coherent(dev->udev, size, 32U, & urb->transfer_dma) VAL [\old(ldv_coherent_state)=0, \old(mem_flags)=32, \old(size)=28, __key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, dev={18446744073709551625:18446744073709551627}, dma={-3:104}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=1, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6773] void *arbitrary_memory ; [L6774] void *tmp___7 ; VAL [\old(ldv_coherent_state)=0, \old(mem_flags)=32, \old(size)=28, __key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, dev={18446744073709551625:18446744073709551627}, dev={18446744073709551625:18446744073709551627}, dma={-3:104}, dma={-3:104}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=1, mem_flags=32, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28] [L6777] COND TRUE 1 VAL [\old(ldv_coherent_state)=0, \old(mem_flags)=32, \old(size)=28, __key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, dev={18446744073709551625:18446744073709551627}, dev={18446744073709551625:18446744073709551627}, dma={-3:104}, dma={-3:104}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=1, mem_flags=32, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28] [L6780] CALL, EXPR ldv_undefined_pointer() VAL [\old(ldv_coherent_state)=0, __key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=1, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6982] CALL, EXPR ldv_malloc(0UL) VAL [\old(ldv_coherent_state)=0, \old(size)=0, __key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=1, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6911] COND FALSE !(__VERIFIER_nondet_bool()) [L6912] return malloc(size); [L6982] RET, EXPR ldv_malloc(0UL) VAL [\old(ldv_coherent_state)=0, __key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_malloc(0UL)={-18446744073709551617:0}, ldv_urb_state=1, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6982] return ldv_malloc(0UL); [L6780] RET, EXPR ldv_undefined_pointer() VAL [\old(ldv_coherent_state)=0, \old(mem_flags)=32, \old(size)=28, __key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, dev={18446744073709551625:18446744073709551627}, dev={18446744073709551625:18446744073709551627}, dma={-3:104}, dma={-3:104}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_undefined_pointer()={-18446744073709551617:0}, ldv_urb_state=1, mem_flags=32, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28] [L6780] tmp___7 = ldv_undefined_pointer() [L6781] arbitrary_memory = tmp___7 VAL [\old(ldv_coherent_state)=0, \old(mem_flags)=32, \old(size)=28, __key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, arbitrary_memory={-18446744073709551617:0}, dev={18446744073709551625:18446744073709551627}, dev={18446744073709551625:18446744073709551627}, dma={-3:104}, dma={-3:104}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=1, mem_flags=32, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, tmp___7={-18446744073709551617:0}] [L6783] COND FALSE !(! arbitrary_memory) [L6787] ldv_coherent_state = ldv_coherent_state + 1 [L6788] return (arbitrary_memory); VAL [\old(ldv_coherent_state)=0, \old(mem_flags)=32, \old(size)=28, \result={-18446744073709551617:0}, __key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, arbitrary_memory={-18446744073709551617:0}, dev={18446744073709551625:18446744073709551627}, dev={18446744073709551625:18446744073709551627}, dma={-3:104}, dma={-3:104}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, mem_flags=32, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, tmp___7={-18446744073709551617:0}] [L6089] RET, EXPR usb_alloc_coherent(dev->udev, size, 32U, & urb->transfer_dma) VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, cf={-18446744073709551617:-8}, context={0:0}, dev={0:-520}, dev->udev={18446744073709551625:18446744073709551627}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, netdev={0:-519}, netdev={0:-519}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, skb={18446744073709551622:0}, skb={18446744073709551622:0}, stats={0:-331}, tmp___7={0:-520}, tmp___8=0, urb={-3:0}, usb_alloc_coherent(dev->udev, size, 32U, & urb->transfer_dma)={-18446744073709551617:0}] [L6089] tmp___9 = usb_alloc_coherent(dev->udev, size, 32U, & urb->transfer_dma) [L6090] buf = (u8 *)tmp___9 VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, buf={-18446744073709551617:0}, cf={-18446744073709551617:-8}, context={0:0}, dev={0:-520}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, netdev={0:-519}, netdev={0:-519}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, skb={18446744073709551622:0}, skb={18446744073709551622:0}, stats={0:-331}, tmp___7={0:-520}, tmp___8=0, tmp___9={-18446744073709551617:0}, urb={-3:0}] [L6092] COND FALSE !(! buf) [L6100] msg = (struct ems_cpc_msg *)(buf + 4) [L6101] EXPR cf->can_id [L6101] msg->msg.can_msg.id = cf->can_id & 536870911U [L6102] EXPR cf->can_dlc [L6102] msg->msg.can_msg.length = cf->can_dlc [L6103] EXPR cf->can_id VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, buf={-18446744073709551617:0}, cf={-18446744073709551617:-8}, cf->can_id=4294967297, context={0:0}, dev={0:-520}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, msg={-18446744073709551617:4}, netdev={0:-519}, netdev={0:-519}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, skb={18446744073709551622:0}, skb={18446744073709551622:0}, stats={0:-331}, tmp___7={0:-520}, tmp___8=0, tmp___9={-18446744073709551617:0}, urb={-3:0}] [L6103] COND TRUE cf->can_id & 1073741824U [L6104] EXPR cf->can_id VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, buf={-18446744073709551617:0}, cf={-18446744073709551617:-8}, cf->can_id=4294967297, context={0:0}, dev={0:-520}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, msg={-18446744073709551617:4}, netdev={0:-519}, netdev={0:-519}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, skb={18446744073709551622:0}, skb={18446744073709551622:0}, stats={0:-331}, tmp___7={0:-520}, tmp___8=0, tmp___9={-18446744073709551617:0}, urb={-3:0}] [L6104] COND TRUE cf->can_id & 2147483648U [L6105] msg->type = (u8 )16 VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, buf={-18446744073709551617:0}, cf={-18446744073709551617:-8}, context={0:0}, dev={0:-520}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, msg={-18446744073709551617:4}, netdev={0:-519}, netdev={0:-519}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, skb={18446744073709551622:0}, skb={18446744073709551622:0}, stats={0:-331}, tmp___7={0:-520}, tmp___8=0, tmp___9={-18446744073709551617:0}, urb={-3:0}] [L6109] msg->length = (u8 )5 VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, buf={-18446744073709551617:0}, cf={-18446744073709551617:-8}, context={0:0}, dev={0:-520}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, msg={-18446744073709551617:4}, netdev={0:-519}, netdev={0:-519}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, skb={18446744073709551622:0}, skb={18446744073709551622:0}, stats={0:-331}, tmp___7={0:-520}, tmp___8=0, tmp___9={-18446744073709551617:0}, urb={-3:0}] [L6132] EXPR msg->msg.can_msg.id [L6132] msg->msg.can_msg.id = msg->msg.can_msg.id [L6133] i = 0 VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, buf={-18446744073709551617:0}, cf={-18446744073709551617:-8}, context={0:0}, dev={0:-520}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, i=0, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, msg={-18446744073709551617:4}, netdev={0:-519}, netdev={0:-519}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, skb={18446744073709551622:0}, skb={18446744073709551622:0}, stats={0:-331}, tmp___7={0:-520}, tmp___8=0, tmp___9={-18446744073709551617:0}, urb={-3:0}] [L6135] COND TRUE 1 VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, buf={-18446744073709551617:0}, cf={-18446744073709551617:-8}, context={0:0}, dev={0:-520}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, i=0, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, msg={-18446744073709551617:4}, netdev={0:-519}, netdev={0:-519}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, skb={18446744073709551622:0}, skb={18446744073709551622:0}, stats={0:-331}, tmp___7={0:-520}, tmp___8=0, tmp___9={-18446744073709551617:0}, urb={-3:0}] [L6137] COND TRUE i < 10 VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, buf={-18446744073709551617:0}, cf={-18446744073709551617:-8}, context={0:0}, dev={0:-520}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, i=0, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, msg={-18446744073709551617:4}, netdev={0:-519}, netdev={0:-519}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, skb={18446744073709551622:0}, skb={18446744073709551622:0}, stats={0:-331}, tmp___7={0:-520}, tmp___8=0, tmp___9={-18446744073709551617:0}, urb={-3:0}] [L6141] EXPR dev->tx_contexts[i].echo_index VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, buf={-18446744073709551617:0}, cf={-18446744073709551617:-8}, context={0:0}, dev={0:-520}, dev->tx_contexts[i].echo_index=4294967306, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, i=0, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, msg={-18446744073709551617:4}, netdev={0:-519}, netdev={0:-519}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, skb={18446744073709551622:0}, skb={18446744073709551622:0}, stats={0:-331}, tmp___7={0:-520}, tmp___8=0, tmp___9={-18446744073709551617:0}, urb={-3:0}] [L6141] COND TRUE dev->tx_contexts[i].echo_index == 10U [L6142] context = & dev->tx_contexts[i] VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, buf={-18446744073709551617:0}, cf={-18446744073709551617:-8}, context={0:0}, dev={0:-520}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, i=0, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, msg={-18446744073709551617:4}, netdev={0:-519}, netdev={0:-519}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, skb={18446744073709551622:0}, skb={18446744073709551622:0}, stats={0:-331}, tmp___7={0:-520}, tmp___8=0, tmp___9={-18446744073709551617:0}, urb={-3:0}] [L6151] COND TRUE ! context VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, buf={-18446744073709551617:0}, cf={-18446744073709551617:-8}, context={0:0}, dev={0:-520}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, i=0, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, msg={-18446744073709551617:4}, netdev={0:-519}, netdev={0:-519}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, skb={18446744073709551622:0}, skb={18446744073709551622:0}, stats={0:-331}, tmp___7={0:-520}, tmp___8=0, tmp___9={-18446744073709551617:0}, urb={-3:0}] [L6153] FCALL usb_unanchor_urb(urb) VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, buf={-18446744073709551617:0}, cf={-18446744073709551617:-8}, context={0:0}, dev={0:-520}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, i=0, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, msg={-18446744073709551617:4}, netdev={0:-519}, netdev={0:-519}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, skb={18446744073709551622:0}, skb={18446744073709551622:0}, stats={0:-331}, tmp___7={0:-520}, tmp___8=0, tmp___9={-18446744073709551617:0}, urb={-3:0}] [L6154] EXPR dev->udev [L6154] EXPR urb->transfer_dma VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, buf={-18446744073709551617:0}, cf={-18446744073709551617:-8}, context={0:0}, dev={0:-520}, dev->udev={18446744073709551625:18446744073709551627}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, i=0, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, msg={-18446744073709551617:4}, netdev={0:-519}, netdev={0:-519}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, skb={18446744073709551622:0}, skb={18446744073709551622:0}, stats={0:-331}, tmp___7={0:-520}, tmp___8=0, tmp___9={-18446744073709551617:0}, urb={-3:0}, urb->transfer_dma=18446744073709551626] [L6154] CALL usb_free_coherent(dev->udev, size, (void *)buf, urb->transfer_dma) VAL [\old(dma)=10, \old(ldv_coherent_state)=1, \old(size)=28, __key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, addr={-18446744073709551617:0}, dev={18446744073709551625:18446744073709551627}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6802] COND TRUE 1 VAL [\old(dma)=10, \old(ldv_coherent_state)=1, \old(size)=28, __key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, addr={-18446744073709551617:0}, addr={-18446744073709551617:0}, dev={18446744073709551625:18446744073709551627}, dev={18446744073709551625:18446744073709551627}, dma=10, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28] [L6804] COND FALSE !(! ((unsigned long )addr != (unsigned long )((void *)0))) VAL [\old(dma)=10, \old(ldv_coherent_state)=1, \old(size)=28, __key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, addr={-18446744073709551617:0}, addr={-18446744073709551617:0}, dev={18446744073709551625:18446744073709551627}, dev={18446744073709551625:18446744073709551627}, dma=10, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28] [L6810] COND TRUE \read(*addr) VAL [\old(dma)=10, \old(ldv_coherent_state)=1, \old(size)=28, __key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, addr={-18446744073709551617:0}, addr={-18446744073709551617:0}, dev={18446744073709551625:18446744073709551627}, dev={18446744073709551625:18446744073709551627}, dma=10, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28] [L6811] COND TRUE ldv_coherent_state >= 1 VAL [\old(dma)=10, \old(ldv_coherent_state)=1, \old(size)=28, __key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, addr={-18446744073709551617:0}, addr={-18446744073709551617:0}, dev={18446744073709551625:18446744073709551627}, dev={18446744073709551625:18446744073709551627}, dma=10, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28] [L6817] ldv_coherent_state = ldv_coherent_state - 1 VAL [\old(dma)=10, \old(ldv_coherent_state)=1, \old(size)=28, __key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, addr={-18446744073709551617:0}, addr={-18446744073709551617:0}, dev={18446744073709551625:18446744073709551627}, dev={18446744073709551625:18446744073709551627}, dma=10, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=1, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28] [L6154] RET usb_free_coherent(dev->udev, size, (void *)buf, urb->transfer_dma) VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, buf={-18446744073709551617:0}, cf={-18446744073709551617:-8}, context={0:0}, dev={0:-520}, dev->udev={18446744073709551625:18446744073709551627}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, i=0, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=1, msg={-18446744073709551617:4}, netdev={0:-519}, netdev={0:-519}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, skb={18446744073709551622:0}, skb={18446744073709551622:0}, stats={0:-331}, tmp___7={0:-520}, tmp___8=0, tmp___9={-18446744073709551617:0}, urb={-3:0}, urb->transfer_dma=18446744073709551626] [L6155] netdev->dev.parent [L6157] return ((netdev_tx_t )16); VAL [\result=16, __key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, buf={-18446744073709551617:0}, cf={-18446744073709551617:-8}, context={0:0}, dev={0:-520}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, i=0, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=1, msg={-18446744073709551617:4}, netdev={0:-519}, netdev={0:-519}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, skb={18446744073709551622:0}, skb={18446744073709551622:0}, stats={0:-331}, tmp___7={0:-520}, tmp___8=0, tmp___9={-18446744073709551617:0}, urb={-3:0}] [L6704] RET ems_usb_start_xmit(var_group2, var_group1) [L6641] COND TRUE 1 VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_s_ems_usb_driver_usb_driver=0, ldv_s_ems_usb_netdev_ops_net_device_ops=0, ldv_urb_state=1, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, tmp___7=0, tmp___8=2, tmp___9=1, var_group1={0:-519}, var_group2={18446744073709551622:0}] [L6644] tmp___9 = __VERIFIER_nondet_int() [L6646] COND FALSE !(\read(tmp___9)) VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_s_ems_usb_driver_usb_driver=0, ldv_s_ems_usb_netdev_ops_net_device_ops=0, ldv_urb_state=1, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, tmp___7=0, tmp___8=2, tmp___9=0, var_group1={0:-519}, var_group2={18446744073709551622:0}] [L6648] COND FALSE !(! (ldv_s_ems_usb_netdev_ops_net_device_ops == 0)) VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_s_ems_usb_driver_usb_driver=0, ldv_s_ems_usb_netdev_ops_net_device_ops=0, ldv_urb_state=1, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, tmp___7=0, tmp___8=2, tmp___9=0, var_group1={0:-519}, var_group2={18446744073709551622:0}] [L6650] COND FALSE !(! (ldv_s_ems_usb_driver_usb_driver == 0)) VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_s_ems_usb_driver_usb_driver=0, ldv_s_ems_usb_netdev_ops_net_device_ops=0, ldv_urb_state=1, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, tmp___7=0, tmp___8=2, tmp___9=0, var_group1={0:-519}, var_group2={18446744073709551622:0}] [L6742] CALL ems_usb_exit() VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=1, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6587] FCALL usb_deregister(& ems_usb_driver) [L6742] RET ems_usb_exit() VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_s_ems_usb_driver_usb_driver=0, ldv_s_ems_usb_netdev_ops_net_device_ops=0, ldv_urb_state=1, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, tmp___7=0, tmp___8=2, tmp___9=0, var_group1={0:-519}, var_group2={18446744073709551622:0}] [L6746] CALL ldv_check_final_state() [L6889] COND FALSE !(ldv_urb_state == 0) VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=1, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6892] CALL ldv_blast_assert() VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=1, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6754] reach_error() VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=1, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 36 procedures, 432 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 116.5s, OverallIterations: 26, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 87.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 17602 SdHoareTripleChecker+Valid, 71.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16338 mSDsluCounter, 87242 SdHoareTripleChecker+Invalid, 65.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 71611 mSDsCounter, 7874 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 44061 IncrementalHoareTripleChecker+Invalid, 51936 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7874 mSolverCounterUnsat, 15631 mSDtfsCounter, 44061 mSolverCounterSat, 0.7s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1287 GetRequests, 976 SyntacticMatches, 1 SemanticMatches, 310 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 640 ImplicationChecksByTransitivity, 4.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8158occurred in iteration=21, InterpolantAutomatonStates: 264, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 10.3s AutomataMinimizationTime, 25 MinimizatonAttempts, 27213 StatesRemovedByMinimization, 25 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 12.9s InterpolantComputationTime, 2500 NumberOfCodeBlocks, 2500 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 2569 ConstructedInterpolants, 0 QuantifiedInterpolants, 4945 SizeOfPredicates, 3 NumberOfNonLiveVariables, 4547 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 30 InterpolantComputations, 23 PerfectInterpolantSequences, 242/265 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-25 16:53:16,229 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/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_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-can-usb-ems_usb.ko.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/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 01d4ebb86f2bde0df0d47bbd5d9b632b620f2501e68770553e85fb2bb5a7d15a --- 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 16:53:18,688 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 16:53:18,691 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 16:53:18,725 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 16:53:18,726 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 16:53:18,727 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 16:53:18,730 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 16:53:18,735 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 16:53:18,739 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 16:53:18,741 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 16:53:18,743 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 16:53:18,746 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 16:53:18,748 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 16:53:18,751 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 16:53:18,753 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 16:53:18,755 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 16:53:18,756 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 16:53:18,762 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 16:53:18,764 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 16:53:18,766 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 16:53:18,772 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 16:53:18,776 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 16:53:18,779 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 16:53:18,780 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 16:53:18,784 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 16:53:18,789 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 16:53:18,789 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 16:53:18,790 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 16:53:18,792 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 16:53:18,793 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 16:53:18,793 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 16:53:18,794 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 16:53:18,795 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 16:53:18,797 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 16:53:18,798 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 16:53:18,799 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 16:53:18,800 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 16:53:18,800 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 16:53:18,801 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 16:53:18,804 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 16:53:18,805 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 16:53:18,808 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-25 16:53:18,842 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 16:53:18,843 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 16:53:18,844 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 16:53:18,845 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 16:53:18,846 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 16:53:18,846 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 16:53:18,847 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 16:53:18,847 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 16:53:18,847 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 16:53:18,848 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 16:53:18,849 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 16:53:18,849 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 16:53:18,849 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 16:53:18,849 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 16:53:18,850 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 16:53:18,850 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 16:53:18,850 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 16:53:18,850 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 16:53:18,850 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 16:53:18,851 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 16:53:18,851 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 16:53:18,851 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 16:53:18,851 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 16:53:18,851 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 16:53:18,852 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 16:53:18,852 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 16:53:18,852 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 16:53:18,852 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-25 16:53:18,853 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 16:53:18,853 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 16:53:18,853 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 16:53:18,853 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 16:53:18,854 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 16:53:18,854 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-11-25 16:53:18,854 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_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 01d4ebb86f2bde0df0d47bbd5d9b632b620f2501e68770553e85fb2bb5a7d15a [2022-11-25 16:53:19,213 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 16:53:19,242 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 16:53:19,246 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 16:53:19,248 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 16:53:19,248 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 16:53:19,250 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-can-usb-ems_usb.ko.cil.out.i [2022-11-25 16:53:22,467 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 16:53:23,062 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 16:53:23,063 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-can-usb-ems_usb.ko.cil.out.i [2022-11-25 16:53:23,105 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/data/fc473ee20/80ccb6dfbc6f4573982a31031d768912/FLAGfc5ea9fad [2022-11-25 16:53:23,125 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/data/fc473ee20/80ccb6dfbc6f4573982a31031d768912 [2022-11-25 16:53:23,127 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 16:53:23,129 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 16:53:23,130 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 16:53:23,131 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 16:53:23,136 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 16:53:23,136 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:53:23" (1/1) ... [2022-11-25 16:53:23,138 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1684b123 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:53:23, skipping insertion in model container [2022-11-25 16:53:23,138 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:53:23" (1/1) ... [2022-11-25 16:53:23,145 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 16:53:23,324 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 16:53:23,967 WARN L623 FunctionHandler]: Unknown extern function __kmalloc [2022-11-25 16:53:24,069 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-11-25 16:53:24,072 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-11-25 16:53:24,085 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 16:53:24,091 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 16:53:24,139 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-11-25 16:53:24,147 WARN L623 FunctionHandler]: Unknown extern function dev_set_drvdata [2022-11-25 16:53:24,163 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-11-25 16:53:24,178 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-11-25 16:53:24,181 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 16:53:24,254 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-25 16:53:24,329 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 16:53:24,335 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-11-25 16:53:24,336 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-25 16:53:24,338 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 16:53:24,344 WARN L623 FunctionHandler]: Unknown extern function alloc_can_skb [2022-11-25 16:53:24,353 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-11-25 16:53:24,365 WARN L623 FunctionHandler]: Unknown extern function alloc_can_err_skb [2022-11-25 16:53:24,367 WARN L623 FunctionHandler]: Unknown extern function can_bus_off [2022-11-25 16:53:24,399 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-11-25 16:53:24,406 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 16:53:24,411 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 16:53:24,413 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-11-25 16:53:24,414 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-25 16:53:24,414 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 16:53:24,421 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 16:53:24,423 WARN L623 FunctionHandler]: Unknown extern function can_get_echo_skb [2022-11-25 16:53:24,439 WARN L623 FunctionHandler]: Unknown extern function usb_bulk_msg [2022-11-25 16:53:24,465 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 16:53:24,466 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 16:53:24,467 WARN L623 FunctionHandler]: Unknown extern function usb_anchor_urb [2022-11-25 16:53:24,468 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-11-25 16:53:24,468 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-25 16:53:24,469 WARN L623 FunctionHandler]: Unknown extern function usb_unanchor_urb [2022-11-25 16:53:24,470 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 16:53:24,470 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 16:53:24,472 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-11-25 16:53:24,472 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-25 16:53:24,473 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 16:53:24,475 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-25 16:53:24,475 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 16:53:24,480 WARN L623 FunctionHandler]: Unknown extern function usb_unlink_urb [2022-11-25 16:53:24,481 WARN L623 FunctionHandler]: Unknown extern function usb_kill_anchored_urbs [2022-11-25 16:53:24,481 WARN L623 FunctionHandler]: Unknown extern function usb_kill_anchored_urbs [2022-11-25 16:53:24,487 WARN L623 FunctionHandler]: Unknown extern function open_candev [2022-11-25 16:53:24,488 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-25 16:53:24,488 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 16:53:24,489 WARN L623 FunctionHandler]: Unknown extern function close_candev [2022-11-25 16:53:24,495 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 16:53:24,497 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 16:53:24,506 WARN L623 FunctionHandler]: Unknown extern function usb_unanchor_urb [2022-11-25 16:53:24,507 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 16:53:24,509 WARN L623 FunctionHandler]: Unknown extern function usb_anchor_urb [2022-11-25 16:53:24,509 WARN L623 FunctionHandler]: Unknown extern function can_put_echo_skb [2022-11-25 16:53:24,510 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-11-25 16:53:24,510 WARN L623 FunctionHandler]: Unknown extern function can_free_echo_skb [2022-11-25 16:53:24,511 WARN L623 FunctionHandler]: Unknown extern function usb_unanchor_urb [2022-11-25 16:53:24,512 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 16:53:24,512 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-25 16:53:24,513 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 16:53:24,514 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 16:53:24,521 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 16:53:24,522 WARN L623 FunctionHandler]: Unknown extern function close_candev [2022-11-25 16:53:24,531 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 16:53:24,539 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 16:53:24,552 WARN L623 FunctionHandler]: Unknown extern function alloc_candev [2022-11-25 16:53:24,553 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 16:53:24,556 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 16:53:24,557 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 16:53:24,558 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 16:53:24,560 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 16:53:24,560 WARN L623 FunctionHandler]: Unknown extern function register_candev [2022-11-25 16:53:24,561 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 16:53:24,561 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 16:53:24,562 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 16:53:24,563 WARN L623 FunctionHandler]: Unknown extern function free_candev [2022-11-25 16:53:24,568 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-11-25 16:53:24,569 WARN L623 FunctionHandler]: Unknown extern function free_candev [2022-11-25 16:53:24,569 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 16:53:24,577 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 16:53:24,578 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 16:53:24,583 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-11-25 16:53:24,605 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-11-25 16:53:24,607 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-11-25 16:53:24,608 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-11-25 16:53:24,609 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-11-25 16:53:24,614 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_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-can-usb-ems_usb.ko.cil.out.i[191320,191333] [2022-11-25 16:53:24,627 WARN L623 FunctionHandler]: Unknown extern function ldv_undefined_pointer [2022-11-25 16:53:24,629 WARN L623 FunctionHandler]: Unknown extern function ldv_undefined_pointer [2022-11-25 16:53:24,655 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 16:53:24,728 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-25 16:53:24,765 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 16:53:24,903 WARN L623 FunctionHandler]: Unknown extern function __kmalloc [2022-11-25 16:53:24,911 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-11-25 16:53:24,912 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-11-25 16:53:24,914 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 16:53:24,914 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 16:53:24,918 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-11-25 16:53:24,920 WARN L623 FunctionHandler]: Unknown extern function dev_set_drvdata [2022-11-25 16:53:24,924 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-11-25 16:53:24,926 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-11-25 16:53:24,927 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 16:53:24,940 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-25 16:53:24,954 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 16:53:24,954 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-11-25 16:53:24,955 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-25 16:53:24,955 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 16:53:24,957 WARN L623 FunctionHandler]: Unknown extern function alloc_can_skb [2022-11-25 16:53:24,960 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-11-25 16:53:24,961 WARN L623 FunctionHandler]: Unknown extern function alloc_can_err_skb [2022-11-25 16:53:24,965 WARN L623 FunctionHandler]: Unknown extern function can_bus_off [2022-11-25 16:53:24,976 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-11-25 16:53:24,979 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 16:53:24,988 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 16:53:24,990 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-11-25 16:53:24,991 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-25 16:53:24,991 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 16:53:25,006 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 16:53:25,008 WARN L623 FunctionHandler]: Unknown extern function can_get_echo_skb [2022-11-25 16:53:25,009 WARN L623 FunctionHandler]: Unknown extern function usb_bulk_msg [2022-11-25 16:53:25,013 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 16:53:25,014 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 16:53:25,016 WARN L623 FunctionHandler]: Unknown extern function usb_anchor_urb [2022-11-25 16:53:25,016 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-11-25 16:53:25,017 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-25 16:53:25,017 WARN L623 FunctionHandler]: Unknown extern function usb_unanchor_urb [2022-11-25 16:53:25,021 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 16:53:25,022 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 16:53:25,023 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-11-25 16:53:25,023 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-25 16:53:25,024 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 16:53:25,025 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-25 16:53:25,026 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 16:53:25,027 WARN L623 FunctionHandler]: Unknown extern function usb_unlink_urb [2022-11-25 16:53:25,027 WARN L623 FunctionHandler]: Unknown extern function usb_kill_anchored_urbs [2022-11-25 16:53:25,027 WARN L623 FunctionHandler]: Unknown extern function usb_kill_anchored_urbs [2022-11-25 16:53:25,029 WARN L623 FunctionHandler]: Unknown extern function open_candev [2022-11-25 16:53:25,029 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-25 16:53:25,030 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 16:53:25,031 WARN L623 FunctionHandler]: Unknown extern function close_candev [2022-11-25 16:53:25,032 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 16:53:25,034 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 16:53:25,039 WARN L623 FunctionHandler]: Unknown extern function usb_unanchor_urb [2022-11-25 16:53:25,039 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 16:53:25,040 WARN L623 FunctionHandler]: Unknown extern function usb_anchor_urb [2022-11-25 16:53:25,041 WARN L623 FunctionHandler]: Unknown extern function can_put_echo_skb [2022-11-25 16:53:25,041 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-11-25 16:53:25,042 WARN L623 FunctionHandler]: Unknown extern function can_free_echo_skb [2022-11-25 16:53:25,043 WARN L623 FunctionHandler]: Unknown extern function usb_unanchor_urb [2022-11-25 16:53:25,044 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 16:53:25,047 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-25 16:53:25,048 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 16:53:25,049 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 16:53:25,050 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 16:53:25,051 WARN L623 FunctionHandler]: Unknown extern function close_candev [2022-11-25 16:53:25,055 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 16:53:25,058 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 16:53:25,061 WARN L623 FunctionHandler]: Unknown extern function alloc_candev [2022-11-25 16:53:25,061 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 16:53:25,071 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 16:53:25,072 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 16:53:25,073 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 16:53:25,074 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 16:53:25,074 WARN L623 FunctionHandler]: Unknown extern function register_candev [2022-11-25 16:53:25,075 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 16:53:25,076 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 16:53:25,076 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 16:53:25,077 WARN L623 FunctionHandler]: Unknown extern function free_candev [2022-11-25 16:53:25,078 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-11-25 16:53:25,079 WARN L623 FunctionHandler]: Unknown extern function free_candev [2022-11-25 16:53:25,080 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 16:53:25,083 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 16:53:25,111 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 16:53:25,112 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-11-25 16:53:25,113 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-11-25 16:53:25,114 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-11-25 16:53:25,114 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-11-25 16:53:25,115 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-11-25 16:53:25,116 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_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-can-usb-ems_usb.ko.cil.out.i[191320,191333] [2022-11-25 16:53:25,117 WARN L623 FunctionHandler]: Unknown extern function ldv_undefined_pointer [2022-11-25 16:53:25,119 WARN L623 FunctionHandler]: Unknown extern function ldv_undefined_pointer [2022-11-25 16:53:25,135 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 16:53:25,167 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 16:53:25,303 WARN L623 FunctionHandler]: Unknown extern function __kmalloc [2022-11-25 16:53:25,307 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-11-25 16:53:25,307 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-11-25 16:53:25,308 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 16:53:25,309 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 16:53:25,310 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-11-25 16:53:25,311 WARN L623 FunctionHandler]: Unknown extern function dev_set_drvdata [2022-11-25 16:53:25,319 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-11-25 16:53:25,320 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-11-25 16:53:25,321 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 16:53:25,332 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-25 16:53:25,338 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 16:53:25,372 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-11-25 16:53:25,373 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-25 16:53:25,373 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 16:53:25,375 WARN L623 FunctionHandler]: Unknown extern function alloc_can_skb [2022-11-25 16:53:25,377 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-11-25 16:53:25,378 WARN L623 FunctionHandler]: Unknown extern function alloc_can_err_skb [2022-11-25 16:53:25,379 WARN L623 FunctionHandler]: Unknown extern function can_bus_off [2022-11-25 16:53:25,390 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-11-25 16:53:25,392 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 16:53:25,398 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 16:53:25,400 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-11-25 16:53:25,400 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-25 16:53:25,401 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 16:53:25,410 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 16:53:25,412 WARN L623 FunctionHandler]: Unknown extern function can_get_echo_skb [2022-11-25 16:53:25,413 WARN L623 FunctionHandler]: Unknown extern function usb_bulk_msg [2022-11-25 16:53:25,417 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 16:53:25,419 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 16:53:25,421 WARN L623 FunctionHandler]: Unknown extern function usb_anchor_urb [2022-11-25 16:53:25,421 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-11-25 16:53:25,422 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-25 16:53:25,422 WARN L623 FunctionHandler]: Unknown extern function usb_unanchor_urb [2022-11-25 16:53:25,423 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 16:53:25,425 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 16:53:25,427 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-11-25 16:53:25,427 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-25 16:53:25,428 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 16:53:25,430 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-25 16:53:25,431 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 16:53:25,433 WARN L623 FunctionHandler]: Unknown extern function usb_unlink_urb [2022-11-25 16:53:25,433 WARN L623 FunctionHandler]: Unknown extern function usb_kill_anchored_urbs [2022-11-25 16:53:25,434 WARN L623 FunctionHandler]: Unknown extern function usb_kill_anchored_urbs [2022-11-25 16:53:25,435 WARN L623 FunctionHandler]: Unknown extern function open_candev [2022-11-25 16:53:25,436 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-25 16:53:25,436 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 16:53:25,437 WARN L623 FunctionHandler]: Unknown extern function close_candev [2022-11-25 16:53:25,439 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 16:53:25,441 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 16:53:25,445 WARN L623 FunctionHandler]: Unknown extern function usb_unanchor_urb [2022-11-25 16:53:25,446 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 16:53:25,451 WARN L623 FunctionHandler]: Unknown extern function usb_anchor_urb [2022-11-25 16:53:25,451 WARN L623 FunctionHandler]: Unknown extern function can_put_echo_skb [2022-11-25 16:53:25,452 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-11-25 16:53:25,452 WARN L623 FunctionHandler]: Unknown extern function can_free_echo_skb [2022-11-25 16:53:25,453 WARN L623 FunctionHandler]: Unknown extern function usb_unanchor_urb [2022-11-25 16:53:25,453 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 16:53:25,453 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-25 16:53:25,454 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 16:53:25,455 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 16:53:25,457 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 16:53:25,458 WARN L623 FunctionHandler]: Unknown extern function close_candev [2022-11-25 16:53:25,461 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 16:53:25,471 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 16:53:25,476 WARN L623 FunctionHandler]: Unknown extern function alloc_candev [2022-11-25 16:53:25,476 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 16:53:25,478 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 16:53:25,479 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 16:53:25,479 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 16:53:25,481 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 16:53:25,483 WARN L623 FunctionHandler]: Unknown extern function register_candev [2022-11-25 16:53:25,483 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 16:53:25,485 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 16:53:25,485 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 16:53:25,485 WARN L623 FunctionHandler]: Unknown extern function free_candev [2022-11-25 16:53:25,486 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-11-25 16:53:25,490 WARN L623 FunctionHandler]: Unknown extern function free_candev [2022-11-25 16:53:25,491 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 16:53:25,494 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 16:53:25,494 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 16:53:25,495 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-11-25 16:53:25,496 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-11-25 16:53:25,497 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-11-25 16:53:25,501 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-11-25 16:53:25,502 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-11-25 16:53:25,504 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_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-can-usb-ems_usb.ko.cil.out.i[191320,191333] [2022-11-25 16:53:25,504 WARN L623 FunctionHandler]: Unknown extern function ldv_undefined_pointer [2022-11-25 16:53:25,506 WARN L623 FunctionHandler]: Unknown extern function ldv_undefined_pointer [2022-11-25 16:53:25,521 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 16:53:25,748 INFO L208 MainTranslator]: Completed translation [2022-11-25 16:53:25,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:53:25 WrapperNode [2022-11-25 16:53:25,748 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 16:53:25,750 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 16:53:25,754 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 16:53:25,754 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 16:53:25,762 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:53:25" (1/1) ... [2022-11-25 16:53:25,830 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:53:25" (1/1) ... [2022-11-25 16:53:25,903 INFO L138 Inliner]: procedures = 148, calls = 749, calls flagged for inlining = 54, calls inlined = 44, statements flattened = 1358 [2022-11-25 16:53:25,903 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 16:53:25,904 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 16:53:25,904 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 16:53:25,904 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 16:53:25,914 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:53:25" (1/1) ... [2022-11-25 16:53:25,914 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:53:25" (1/1) ... [2022-11-25 16:53:25,924 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:53:25" (1/1) ... [2022-11-25 16:53:25,925 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:53:25" (1/1) ... [2022-11-25 16:53:25,985 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:53:25" (1/1) ... [2022-11-25 16:53:25,994 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:53:25" (1/1) ... [2022-11-25 16:53:26,002 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:53:25" (1/1) ... [2022-11-25 16:53:26,009 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:53:25" (1/1) ... [2022-11-25 16:53:26,021 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 16:53:26,022 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 16:53:26,022 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 16:53:26,022 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 16:53:26,023 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:53:25" (1/1) ... [2022-11-25 16:53:26,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 16:53:26,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:53:26,072 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 16:53:26,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 16:53:26,123 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-25 16:53:26,123 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-25 16:53:26,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-25 16:53:26,124 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_init [2022-11-25 16:53:26,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_init [2022-11-25 16:53:26,124 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2022-11-25 16:53:26,124 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2022-11-25 16:53:26,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-25 16:53:26,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-25 16:53:26,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-25 16:53:26,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-25 16:53:26,125 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-25 16:53:26,125 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-25 16:53:26,125 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_control_cmd [2022-11-25 16:53:26,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_control_cmd [2022-11-25 16:53:26,125 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-11-25 16:53:26,126 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-11-25 16:53:26,126 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-25 16:53:26,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-25 16:53:26,126 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_exit [2022-11-25 16:53:26,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_exit [2022-11-25 16:53:26,126 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_anchored_urbs [2022-11-25 16:53:26,126 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_anchored_urbs [2022-11-25 16:53:26,127 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-25 16:53:26,127 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-25 16:53:26,127 INFO L130 BoogieDeclarations]: Found specification of procedure init_usb_anchor [2022-11-25 16:53:26,127 INFO L138 BoogieDeclarations]: Found implementation of procedure init_usb_anchor [2022-11-25 16:53:26,127 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2022-11-25 16:53:26,127 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2022-11-25 16:53:26,127 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume_stop [2022-11-25 16:53:26,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume_stop [2022-11-25 16:53:26,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-25 16:53:26,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-25 16:53:26,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-25 16:53:26,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-25 16:53:26,128 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2022-11-25 16:53:26,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2022-11-25 16:53:26,129 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-25 16:53:26,129 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-25 16:53:26,129 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_command_msg [2022-11-25 16:53:26,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_command_msg [2022-11-25 16:53:26,129 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 16:53:26,129 INFO L130 BoogieDeclarations]: Found specification of procedure unlink_all_urbs [2022-11-25 16:53:26,129 INFO L138 BoogieDeclarations]: Found implementation of procedure unlink_all_urbs [2022-11-25 16:53:26,130 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 16:53:26,130 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-25 16:53:26,130 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-25 16:53:26,130 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 16:53:26,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 16:53:26,130 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-25 16:53:26,130 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_write_mode [2022-11-25 16:53:26,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_write_mode [2022-11-25 16:53:26,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-25 16:53:26,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-25 16:53:26,131 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2022-11-25 16:53:26,131 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2022-11-25 16:53:26,131 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2022-11-25 16:53:26,131 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2022-11-25 16:53:26,132 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 16:53:26,132 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-11-25 16:53:26,132 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-11-25 16:53:26,132 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-11-25 16:53:26,133 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-11-25 16:53:26,133 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2022-11-25 16:53:26,133 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2022-11-25 16:53:26,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-25 16:53:26,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-25 16:53:26,133 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2022-11-25 16:53:26,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2022-11-25 16:53:26,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 16:53:26,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-25 16:53:26,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-25 16:53:26,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-11-25 16:53:26,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-25 16:53:26,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-25 16:53:26,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-25 16:53:26,135 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-25 16:53:26,135 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-25 16:53:26,135 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-11-25 16:53:26,135 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-11-25 16:53:26,135 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-25 16:53:26,135 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-25 16:53:26,135 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2022-11-25 16:53:26,136 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2022-11-25 16:53:26,136 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-11-25 16:53:26,136 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-11-25 16:53:26,136 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-25 16:53:26,136 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-25 16:53:26,136 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_pointer [2022-11-25 16:53:26,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_pointer [2022-11-25 16:53:26,137 INFO L130 BoogieDeclarations]: Found specification of procedure close_candev [2022-11-25 16:53:26,137 INFO L138 BoogieDeclarations]: Found implementation of procedure close_candev [2022-11-25 16:53:26,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-25 16:53:26,137 INFO L130 BoogieDeclarations]: Found specification of procedure free_candev [2022-11-25 16:53:26,137 INFO L138 BoogieDeclarations]: Found implementation of procedure free_candev [2022-11-25 16:53:26,137 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2022-11-25 16:53:26,137 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2022-11-25 16:53:26,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 16:53:26,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 16:53:26,654 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 16:53:26,658 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 16:53:28,849 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_assume_stopFINAL: assume true; [2022-11-25 16:53:31,172 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-25 16:53:40,371 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##28: assume !false; [2022-11-25 16:53:40,371 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##27: assume false; [2022-11-25 16:53:40,477 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 16:53:40,488 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 16:53:40,489 INFO L300 CfgBuilder]: Removed 13 assume(true) statements. [2022-11-25 16:53:40,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:53:40 BoogieIcfgContainer [2022-11-25 16:53:40,492 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 16:53:40,494 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 16:53:40,494 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 16:53:40,497 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 16:53:40,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 04:53:23" (1/3) ... [2022-11-25 16:53:40,498 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a22ebe1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 04:53:40, skipping insertion in model container [2022-11-25 16:53:40,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:53:25" (2/3) ... [2022-11-25 16:53:40,499 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a22ebe1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 04:53:40, skipping insertion in model container [2022-11-25 16:53:40,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:53:40" (3/3) ... [2022-11-25 16:53:40,500 INFO L112 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-net-can-usb-ems_usb.ko.cil.out.i [2022-11-25 16:53:40,520 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 16:53:40,521 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 16:53:40,581 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 16:53:40,588 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;@7878b6f8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 16:53:40,588 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 16:53:40,595 INFO L276 IsEmpty]: Start isEmpty. Operand has 431 states, 304 states have (on average 1.3519736842105263) internal successors, (411), 316 states have internal predecessors, (411), 91 states have call successors, (91), 35 states have call predecessors, (91), 34 states have return successors, (89), 87 states have call predecessors, (89), 89 states have call successors, (89) [2022-11-25 16:53:40,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-25 16:53:40,603 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:53:40,604 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:53:40,604 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:53:40,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:53:40,610 INFO L85 PathProgramCache]: Analyzing trace with hash -1517292025, now seen corresponding path program 1 times [2022-11-25 16:53:40,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 16:53:40,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1108278999] [2022-11-25 16:53:40,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:53:40,627 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:53:40,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 16:53:40,634 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 16:53:40,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-25 16:53:41,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:53:41,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 567 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 16:53:41,330 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:53:41,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:53:41,500 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 16:53:41,500 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 16:53:41,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1108278999] [2022-11-25 16:53:41,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1108278999] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:53:41,501 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:53:41,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 16:53:41,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350191156] [2022-11-25 16:53:41,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:53:41,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 16:53:41,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 16:53:41,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 16:53:41,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:53:41,541 INFO L87 Difference]: Start difference. First operand has 431 states, 304 states have (on average 1.3519736842105263) internal successors, (411), 316 states have internal predecessors, (411), 91 states have call successors, (91), 35 states have call predecessors, (91), 34 states have return successors, (89), 87 states have call predecessors, (89), 89 states have call successors, (89) Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 16:53:41,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:53:41,732 INFO L93 Difference]: Finished difference Result 1253 states and 1768 transitions. [2022-11-25 16:53:41,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 16:53:41,734 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2022-11-25 16:53:41,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:53:41,753 INFO L225 Difference]: With dead ends: 1253 [2022-11-25 16:53:41,753 INFO L226 Difference]: Without dead ends: 824 [2022-11-25 16:53:41,759 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:53:41,762 INFO L413 NwaCegarLoop]: 695 mSDtfsCounter, 539 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 539 SdHoareTripleChecker+Valid, 1229 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 16:53:41,764 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [539 Valid, 1229 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 16:53:41,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 824 states. [2022-11-25 16:53:41,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 824 to 820. [2022-11-25 16:53:41,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 820 states, 581 states have (on average 1.2581755593803787) internal successors, (731), 593 states have internal predecessors, (731), 173 states have call successors, (173), 66 states have call predecessors, (173), 65 states have return successors, (172), 165 states have call predecessors, (172), 169 states have call successors, (172) [2022-11-25 16:53:41,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 820 states to 820 states and 1076 transitions. [2022-11-25 16:53:41,881 INFO L78 Accepts]: Start accepts. Automaton has 820 states and 1076 transitions. Word has length 16 [2022-11-25 16:53:41,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:53:41,881 INFO L495 AbstractCegarLoop]: Abstraction has 820 states and 1076 transitions. [2022-11-25 16:53:41,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 16:53:41,882 INFO L276 IsEmpty]: Start isEmpty. Operand 820 states and 1076 transitions. [2022-11-25 16:53:41,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-25 16:53:41,882 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:53:41,883 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:53:41,899 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-11-25 16:53:42,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:53:42,099 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:53:42,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:53:42,099 INFO L85 PathProgramCache]: Analyzing trace with hash 208359179, now seen corresponding path program 1 times [2022-11-25 16:53:42,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 16:53:42,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [79695458] [2022-11-25 16:53:42,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:53:42,101 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:53:42,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 16:53:42,102 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 16:53:42,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-25 16:53:42,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:53:42,687 INFO L263 TraceCheckSpWp]: Trace formula consists of 568 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 16:53:42,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:53:42,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:53:42,837 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 16:53:42,838 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 16:53:42,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [79695458] [2022-11-25 16:53:42,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [79695458] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:53:42,838 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:53:42,838 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 16:53:42,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149611133] [2022-11-25 16:53:42,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:53:42,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 16:53:42,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 16:53:42,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 16:53:42,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:53:42,841 INFO L87 Difference]: Start difference. First operand 820 states and 1076 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 16:53:42,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:53:42,995 INFO L93 Difference]: Finished difference Result 2433 states and 3207 transitions. [2022-11-25 16:53:42,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 16:53:42,996 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-11-25 16:53:42,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:53:43,007 INFO L225 Difference]: With dead ends: 2433 [2022-11-25 16:53:43,008 INFO L226 Difference]: Without dead ends: 1617 [2022-11-25 16:53:43,011 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:53:43,012 INFO L413 NwaCegarLoop]: 630 mSDtfsCounter, 529 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 529 SdHoareTripleChecker+Valid, 1161 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 16:53:43,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [529 Valid, 1161 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 16:53:43,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1617 states. [2022-11-25 16:53:43,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1617 to 1610. [2022-11-25 16:53:43,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1610 states, 1141 states have (on average 1.2541630148992111) internal successors, (1431), 1160 states have internal predecessors, (1431), 340 states have call successors, (340), 129 states have call predecessors, (340), 128 states have return successors, (346), 328 states have call predecessors, (346), 336 states have call successors, (346) [2022-11-25 16:53:43,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1610 states to 1610 states and 2117 transitions. [2022-11-25 16:53:43,159 INFO L78 Accepts]: Start accepts. Automaton has 1610 states and 2117 transitions. Word has length 17 [2022-11-25 16:53:43,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:53:43,159 INFO L495 AbstractCegarLoop]: Abstraction has 1610 states and 2117 transitions. [2022-11-25 16:53:43,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 16:53:43,160 INFO L276 IsEmpty]: Start isEmpty. Operand 1610 states and 2117 transitions. [2022-11-25 16:53:43,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-25 16:53:43,164 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:53:43,164 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-25 16:53:43,187 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-25 16:53:43,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:53:43,382 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:53:43,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:53:43,382 INFO L85 PathProgramCache]: Analyzing trace with hash 26582145, now seen corresponding path program 1 times [2022-11-25 16:53:43,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 16:53:43,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [535041366] [2022-11-25 16:53:43,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:53:43,384 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:53:43,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 16:53:43,385 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 16:53:43,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-25 16:53:44,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:53:44,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 732 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 16:53:44,039 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:53:44,186 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 16:53:44,186 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 16:53:44,187 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 16:53:44,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [535041366] [2022-11-25 16:53:44,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [535041366] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:53:44,187 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:53:44,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 16:53:44,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112994756] [2022-11-25 16:53:44,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:53:44,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 16:53:44,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 16:53:44,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 16:53:44,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 16:53:44,190 INFO L87 Difference]: Start difference. First operand 1610 states and 2117 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-25 16:53:44,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:53:44,343 INFO L93 Difference]: Finished difference Result 3212 states and 4225 transitions. [2022-11-25 16:53:44,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 16:53:44,344 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 71 [2022-11-25 16:53:44,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:53:44,354 INFO L225 Difference]: With dead ends: 3212 [2022-11-25 16:53:44,354 INFO L226 Difference]: Without dead ends: 1610 [2022-11-25 16:53:44,359 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 16:53:44,360 INFO L413 NwaCegarLoop]: 546 mSDtfsCounter, 0 mSDsluCounter, 1632 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2178 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 16:53:44,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2178 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 16:53:44,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1610 states. [2022-11-25 16:53:44,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1610 to 1610. [2022-11-25 16:53:44,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1610 states, 1141 states have (on average 1.2532865907099036) internal successors, (1430), 1160 states have internal predecessors, (1430), 340 states have call successors, (340), 129 states have call predecessors, (340), 128 states have return successors, (346), 328 states have call predecessors, (346), 336 states have call successors, (346) [2022-11-25 16:53:44,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1610 states to 1610 states and 2116 transitions. [2022-11-25 16:53:44,528 INFO L78 Accepts]: Start accepts. Automaton has 1610 states and 2116 transitions. Word has length 71 [2022-11-25 16:53:44,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:53:44,529 INFO L495 AbstractCegarLoop]: Abstraction has 1610 states and 2116 transitions. [2022-11-25 16:53:44,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-25 16:53:44,529 INFO L276 IsEmpty]: Start isEmpty. Operand 1610 states and 2116 transitions. [2022-11-25 16:53:44,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-25 16:53:44,538 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:53:44,538 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-25 16:53:44,564 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-25 16:53:44,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:53:44,759 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:53:44,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:53:44,759 INFO L85 PathProgramCache]: Analyzing trace with hash 2146869344, now seen corresponding path program 1 times [2022-11-25 16:53:44,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 16:53:44,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [726869575] [2022-11-25 16:53:44,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:53:44,761 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:53:44,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 16:53:44,766 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 16:53:44,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-25 16:53:45,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:53:45,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 732 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 16:53:45,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:53:45,652 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 16:53:45,652 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 16:53:45,652 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 16:53:45,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [726869575] [2022-11-25 16:53:45,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [726869575] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:53:45,653 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:53:45,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 16:53:45,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883963301] [2022-11-25 16:53:45,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:53:45,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 16:53:45,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 16:53:45,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 16:53:45,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:53:45,656 INFO L87 Difference]: Start difference. First operand 1610 states and 2116 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-25 16:53:45,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:53:45,920 INFO L93 Difference]: Finished difference Result 3924 states and 5357 transitions. [2022-11-25 16:53:45,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 16:53:45,921 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 71 [2022-11-25 16:53:45,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:53:45,934 INFO L225 Difference]: With dead ends: 3924 [2022-11-25 16:53:45,934 INFO L226 Difference]: Without dead ends: 2325 [2022-11-25 16:53:45,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:53:45,944 INFO L413 NwaCegarLoop]: 629 mSDtfsCounter, 206 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 1122 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:53:45,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 1122 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 16:53:45,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2325 states. [2022-11-25 16:53:46,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2325 to 2313. [2022-11-25 16:53:46,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2313 states, 1640 states have (on average 1.2939024390243903) internal successors, (2122), 1675 states have internal predecessors, (2122), 544 states have call successors, (544), 129 states have call predecessors, (544), 128 states have return successors, (558), 524 states have call predecessors, (558), 540 states have call successors, (558) [2022-11-25 16:53:46,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2313 states to 2313 states and 3224 transitions. [2022-11-25 16:53:46,112 INFO L78 Accepts]: Start accepts. Automaton has 2313 states and 3224 transitions. Word has length 71 [2022-11-25 16:53:46,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:53:46,113 INFO L495 AbstractCegarLoop]: Abstraction has 2313 states and 3224 transitions. [2022-11-25 16:53:46,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-25 16:53:46,113 INFO L276 IsEmpty]: Start isEmpty. Operand 2313 states and 3224 transitions. [2022-11-25 16:53:46,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-25 16:53:46,116 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:53:46,116 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-25 16:53:46,142 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-25 16:53:46,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:53:46,330 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:53:46,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:53:46,330 INFO L85 PathProgramCache]: Analyzing trace with hash 1152569613, now seen corresponding path program 1 times [2022-11-25 16:53:46,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 16:53:46,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [780297449] [2022-11-25 16:53:46,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:53:46,332 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:53:46,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 16:53:46,333 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 16:53:46,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-25 16:53:46,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:53:46,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 727 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 16:53:46,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:53:47,091 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:53:47,091 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 16:53:47,091 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 16:53:47,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [780297449] [2022-11-25 16:53:47,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [780297449] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:53:47,092 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:53:47,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 16:53:47,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486638555] [2022-11-25 16:53:47,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:53:47,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 16:53:47,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 16:53:47,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 16:53:47,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 16:53:47,095 INFO L87 Difference]: Start difference. First operand 2313 states and 3224 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-25 16:53:47,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:53:47,777 INFO L93 Difference]: Finished difference Result 6261 states and 9014 transitions. [2022-11-25 16:53:47,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 16:53:47,777 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 68 [2022-11-25 16:53:47,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:53:47,797 INFO L225 Difference]: With dead ends: 6261 [2022-11-25 16:53:47,798 INFO L226 Difference]: Without dead ends: 3960 [2022-11-25 16:53:47,805 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 16:53:47,807 INFO L413 NwaCegarLoop]: 853 mSDtfsCounter, 447 mSDsluCounter, 1209 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 447 SdHoareTripleChecker+Valid, 2062 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 16:53:47,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [447 Valid, 2062 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 16:53:47,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3960 states. [2022-11-25 16:53:48,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3960 to 2329. [2022-11-25 16:53:48,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2329 states, 1656 states have (on average 1.291062801932367) internal successors, (2138), 1691 states have internal predecessors, (2138), 544 states have call successors, (544), 129 states have call predecessors, (544), 128 states have return successors, (558), 524 states have call predecessors, (558), 540 states have call successors, (558) [2022-11-25 16:53:48,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2329 states to 2329 states and 3240 transitions. [2022-11-25 16:53:48,064 INFO L78 Accepts]: Start accepts. Automaton has 2329 states and 3240 transitions. Word has length 68 [2022-11-25 16:53:48,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:53:48,065 INFO L495 AbstractCegarLoop]: Abstraction has 2329 states and 3240 transitions. [2022-11-25 16:53:48,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-25 16:53:48,065 INFO L276 IsEmpty]: Start isEmpty. Operand 2329 states and 3240 transitions. [2022-11-25 16:53:48,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-25 16:53:48,067 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:53:48,068 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:53:48,093 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-25 16:53:48,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:53:48,282 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:53:48,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:53:48,283 INFO L85 PathProgramCache]: Analyzing trace with hash 1776712988, now seen corresponding path program 1 times [2022-11-25 16:53:48,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 16:53:48,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1652468401] [2022-11-25 16:53:48,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:53:48,284 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:53:48,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 16:53:48,285 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 16:53:48,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-25 16:53:48,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:53:48,942 INFO L263 TraceCheckSpWp]: Trace formula consists of 761 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 16:53:48,945 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:53:49,003 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:53:49,003 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 16:53:49,004 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 16:53:49,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1652468401] [2022-11-25 16:53:49,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1652468401] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:53:49,004 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:53:49,005 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 16:53:49,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98621654] [2022-11-25 16:53:49,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:53:49,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 16:53:49,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 16:53:49,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 16:53:49,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 16:53:49,007 INFO L87 Difference]: Start difference. First operand 2329 states and 3240 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-25 16:53:49,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:53:49,657 INFO L93 Difference]: Finished difference Result 5821 states and 8310 transitions. [2022-11-25 16:53:49,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 16:53:49,658 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 69 [2022-11-25 16:53:49,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:53:49,677 INFO L225 Difference]: With dead ends: 5821 [2022-11-25 16:53:49,677 INFO L226 Difference]: Without dead ends: 3504 [2022-11-25 16:53:49,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 16:53:49,685 INFO L413 NwaCegarLoop]: 823 mSDtfsCounter, 336 mSDsluCounter, 1200 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 2023 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 16:53:49,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [337 Valid, 2023 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 16:53:49,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3504 states. [2022-11-25 16:53:49,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3504 to 2345. [2022-11-25 16:53:49,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2345 states, 1672 states have (on average 1.2882775119617225) internal successors, (2154), 1707 states have internal predecessors, (2154), 544 states have call successors, (544), 129 states have call predecessors, (544), 128 states have return successors, (558), 524 states have call predecessors, (558), 540 states have call successors, (558) [2022-11-25 16:53:50,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2345 states to 2345 states and 3256 transitions. [2022-11-25 16:53:50,008 INFO L78 Accepts]: Start accepts. Automaton has 2345 states and 3256 transitions. Word has length 69 [2022-11-25 16:53:50,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:53:50,009 INFO L495 AbstractCegarLoop]: Abstraction has 2345 states and 3256 transitions. [2022-11-25 16:53:50,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-25 16:53:50,009 INFO L276 IsEmpty]: Start isEmpty. Operand 2345 states and 3256 transitions. [2022-11-25 16:53:50,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-25 16:53:50,013 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:53:50,013 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:53:50,046 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-25 16:53:50,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:53:50,226 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:53:50,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:53:50,227 INFO L85 PathProgramCache]: Analyzing trace with hash 676145405, now seen corresponding path program 1 times [2022-11-25 16:53:50,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 16:53:50,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2059373379] [2022-11-25 16:53:50,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:53:50,228 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:53:50,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 16:53:50,229 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 16:53:50,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-25 16:53:50,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:53:50,866 INFO L263 TraceCheckSpWp]: Trace formula consists of 729 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-25 16:53:50,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:53:51,303 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:53:51,303 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 16:53:51,303 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 16:53:51,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2059373379] [2022-11-25 16:53:51,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2059373379] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:53:51,304 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:53:51,304 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 16:53:51,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641354217] [2022-11-25 16:53:51,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:53:51,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 16:53:51,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 16:53:51,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 16:53:51,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 16:53:51,306 INFO L87 Difference]: Start difference. First operand 2345 states and 3256 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-25 16:53:51,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:53:51,700 INFO L93 Difference]: Finished difference Result 3553 states and 4967 transitions. [2022-11-25 16:53:51,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 16:53:51,701 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) Word has length 69 [2022-11-25 16:53:51,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:53:51,720 INFO L225 Difference]: With dead ends: 3553 [2022-11-25 16:53:51,720 INFO L226 Difference]: Without dead ends: 2377 [2022-11-25 16:53:51,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 16:53:51,726 INFO L413 NwaCegarLoop]: 544 mSDtfsCounter, 2 mSDsluCounter, 2710 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3254 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:53:51,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3254 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 16:53:51,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2377 states. [2022-11-25 16:53:51,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2377 to 2377. [2022-11-25 16:53:51,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2377 states, 1694 states have (on average 1.2845336481700118) internal successors, (2176), 1731 states have internal predecessors, (2176), 544 states have call successors, (544), 129 states have call predecessors, (544), 138 states have return successors, (592), 532 states have call predecessors, (592), 540 states have call successors, (592) [2022-11-25 16:53:51,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2377 states to 2377 states and 3312 transitions. [2022-11-25 16:53:51,984 INFO L78 Accepts]: Start accepts. Automaton has 2377 states and 3312 transitions. Word has length 69 [2022-11-25 16:53:51,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:53:51,988 INFO L495 AbstractCegarLoop]: Abstraction has 2377 states and 3312 transitions. [2022-11-25 16:53:51,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-25 16:53:51,988 INFO L276 IsEmpty]: Start isEmpty. Operand 2377 states and 3312 transitions. [2022-11-25 16:53:51,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-25 16:53:51,991 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:53:51,991 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:53:52,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-25 16:53:52,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:53:52,212 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:53:52,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:53:52,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1333958436, now seen corresponding path program 1 times [2022-11-25 16:53:52,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 16:53:52,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2086915324] [2022-11-25 16:53:52,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:53:52,213 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:53:52,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 16:53:52,214 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 16:53:52,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-25 16:53:52,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:53:52,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 735 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-25 16:53:52,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:53:53,340 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:53:53,340 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 16:53:53,340 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 16:53:53,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2086915324] [2022-11-25 16:53:53,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2086915324] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:53:53,341 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:53:53,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-25 16:53:53,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874169780] [2022-11-25 16:53:53,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:53:53,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 16:53:53,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 16:53:53,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 16:53:53,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-25 16:53:53,344 INFO L87 Difference]: Start difference. First operand 2377 states and 3312 transitions. Second operand has 10 states, 10 states have (on average 5.4) internal successors, (54), 7 states have internal predecessors, (54), 2 states have call successors, (8), 2 states have call predecessors, (8), 5 states have return successors, (7), 5 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-25 16:53:54,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:53:54,830 INFO L93 Difference]: Finished difference Result 5537 states and 7892 transitions. [2022-11-25 16:53:54,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 16:53:54,831 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 7 states have internal predecessors, (54), 2 states have call successors, (8), 2 states have call predecessors, (8), 5 states have return successors, (7), 5 states have call predecessors, (7), 2 states have call successors, (7) Word has length 69 [2022-11-25 16:53:54,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:53:54,853 INFO L225 Difference]: With dead ends: 5537 [2022-11-25 16:53:54,854 INFO L226 Difference]: Without dead ends: 3172 [2022-11-25 16:53:54,862 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-25 16:53:54,863 INFO L413 NwaCegarLoop]: 915 mSDtfsCounter, 217 mSDsluCounter, 6923 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 7838 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-25 16:53:54,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 7838 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-25 16:53:54,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3172 states. [2022-11-25 16:53:55,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3172 to 2381. [2022-11-25 16:53:55,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2381 states, 1698 states have (on average 1.28150765606596) internal successors, (2176), 1733 states have internal predecessors, (2176), 544 states have call successors, (544), 129 states have call predecessors, (544), 138 states have return successors, (592), 534 states have call predecessors, (592), 540 states have call successors, (592) [2022-11-25 16:53:55,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2381 states to 2381 states and 3312 transitions. [2022-11-25 16:53:55,160 INFO L78 Accepts]: Start accepts. Automaton has 2381 states and 3312 transitions. Word has length 69 [2022-11-25 16:53:55,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:53:55,161 INFO L495 AbstractCegarLoop]: Abstraction has 2381 states and 3312 transitions. [2022-11-25 16:53:55,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 7 states have internal predecessors, (54), 2 states have call successors, (8), 2 states have call predecessors, (8), 5 states have return successors, (7), 5 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-25 16:53:55,161 INFO L276 IsEmpty]: Start isEmpty. Operand 2381 states and 3312 transitions. [2022-11-25 16:53:55,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-25 16:53:55,163 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:53:55,163 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-25 16:53:55,195 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-25 16:53:55,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:53:55,385 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:53:55,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:53:55,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1395829828, now seen corresponding path program 1 times [2022-11-25 16:53:55,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 16:53:55,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1937616180] [2022-11-25 16:53:55,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:53:55,387 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:53:55,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 16:53:55,388 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 16:53:55,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-25 16:53:55,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:53:55,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 747 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 16:53:55,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:53:56,203 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:53:56,204 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 16:53:56,204 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 16:53:56,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1937616180] [2022-11-25 16:53:56,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1937616180] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:53:56,205 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:53:56,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 16:53:56,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961544597] [2022-11-25 16:53:56,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:53:56,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 16:53:56,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 16:53:56,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 16:53:56,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 16:53:56,208 INFO L87 Difference]: Start difference. First operand 2381 states and 3312 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-25 16:53:56,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:53:56,769 INFO L93 Difference]: Finished difference Result 5691 states and 8110 transitions. [2022-11-25 16:53:56,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 16:53:56,770 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 75 [2022-11-25 16:53:56,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:53:56,787 INFO L225 Difference]: With dead ends: 5691 [2022-11-25 16:53:56,787 INFO L226 Difference]: Without dead ends: 3322 [2022-11-25 16:53:56,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 16:53:56,799 INFO L413 NwaCegarLoop]: 824 mSDtfsCounter, 168 mSDsluCounter, 2227 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 3051 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 16:53:56,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 3051 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 16:53:56,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3322 states. [2022-11-25 16:53:57,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3322 to 2171. [2022-11-25 16:53:57,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2171 states, 1554 states have (on average 1.2715572715572716) internal successors, (1976), 1573 states have internal predecessors, (1976), 480 states have call successors, (480), 127 states have call predecessors, (480), 136 states have return successors, (526), 478 states have call predecessors, (526), 476 states have call successors, (526) [2022-11-25 16:53:57,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2171 states to 2171 states and 2982 transitions. [2022-11-25 16:53:57,103 INFO L78 Accepts]: Start accepts. Automaton has 2171 states and 2982 transitions. Word has length 75 [2022-11-25 16:53:57,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:53:57,104 INFO L495 AbstractCegarLoop]: Abstraction has 2171 states and 2982 transitions. [2022-11-25 16:53:57,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-25 16:53:57,105 INFO L276 IsEmpty]: Start isEmpty. Operand 2171 states and 2982 transitions. [2022-11-25 16:53:57,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-25 16:53:57,109 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:53:57,110 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-25 16:53:57,130 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-25 16:53:57,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:53:57,329 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:53:57,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:53:57,330 INFO L85 PathProgramCache]: Analyzing trace with hash -506709307, now seen corresponding path program 1 times [2022-11-25 16:53:57,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 16:53:57,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1286796810] [2022-11-25 16:53:57,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:53:57,331 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:53:57,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 16:53:57,333 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 16:53:57,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-25 16:53:57,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:53:57,978 INFO L263 TraceCheckSpWp]: Trace formula consists of 747 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 16:53:57,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:53:58,662 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:53:58,662 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 16:53:58,662 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 16:53:58,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1286796810] [2022-11-25 16:53:58,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1286796810] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:53:58,663 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:53:58,663 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 16:53:58,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627857414] [2022-11-25 16:53:58,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:53:58,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 16:53:58,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 16:53:58,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 16:53:58,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 16:53:58,664 INFO L87 Difference]: Start difference. First operand 2171 states and 2982 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 5 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2022-11-25 16:54:01,203 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 16:54:05,335 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 16:54:06,955 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 16:54:08,968 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 16:54:11,874 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 16:54:16,775 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 16:54:18,789 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 16:54:23,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:54:23,140 INFO L93 Difference]: Finished difference Result 5585 states and 7755 transitions. [2022-11-25 16:54:23,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 16:54:23,143 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 5 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 75 [2022-11-25 16:54:23,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:54:23,173 INFO L225 Difference]: With dead ends: 5585 [2022-11-25 16:54:23,174 INFO L226 Difference]: Without dead ends: 4375 [2022-11-25 16:54:23,180 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-25 16:54:23,180 INFO L413 NwaCegarLoop]: 654 mSDtfsCounter, 1136 mSDsluCounter, 1353 mSDsCounter, 0 mSdLazyCounter, 2073 mSolverCounterSat, 326 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1260 SdHoareTripleChecker+Valid, 2007 SdHoareTripleChecker+Invalid, 2403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 326 IncrementalHoareTripleChecker+Valid, 2073 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.8s IncrementalHoareTripleChecker+Time [2022-11-25 16:54:23,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1260 Valid, 2007 Invalid, 2403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [326 Valid, 2073 Invalid, 4 Unknown, 0 Unchecked, 23.8s Time] [2022-11-25 16:54:23,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4375 states. [2022-11-25 16:54:23,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4375 to 4317. [2022-11-25 16:54:23,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4317 states, 3092 states have (on average 1.2739327296248384) internal successors, (3939), 3127 states have internal predecessors, (3939), 954 states have call successors, (954), 249 states have call predecessors, (954), 270 states have return successors, (1082), 960 states have call predecessors, (1082), 950 states have call successors, (1082) [2022-11-25 16:54:23,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4317 states to 4317 states and 5975 transitions. [2022-11-25 16:54:23,696 INFO L78 Accepts]: Start accepts. Automaton has 4317 states and 5975 transitions. Word has length 75 [2022-11-25 16:54:23,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:54:23,698 INFO L495 AbstractCegarLoop]: Abstraction has 4317 states and 5975 transitions. [2022-11-25 16:54:23,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 5 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2022-11-25 16:54:23,699 INFO L276 IsEmpty]: Start isEmpty. Operand 4317 states and 5975 transitions. [2022-11-25 16:54:23,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-11-25 16:54:23,702 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:54:23,702 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-25 16:54:23,727 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-25 16:54:23,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:54:23,916 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:54:23,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:54:23,916 INFO L85 PathProgramCache]: Analyzing trace with hash -418091033, now seen corresponding path program 1 times [2022-11-25 16:54:23,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 16:54:23,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1593987764] [2022-11-25 16:54:23,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:54:23,917 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:54:23,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 16:54:23,918 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 16:54:23,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-25 16:54:24,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:54:24,634 INFO L263 TraceCheckSpWp]: Trace formula consists of 888 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 16:54:24,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:54:24,707 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-25 16:54:24,708 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 16:54:24,708 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 16:54:24,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1593987764] [2022-11-25 16:54:24,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1593987764] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:54:24,709 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:54:24,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 16:54:24,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330445664] [2022-11-25 16:54:24,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:54:24,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 16:54:24,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 16:54:24,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 16:54:24,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:54:24,711 INFO L87 Difference]: Start difference. First operand 4317 states and 5975 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-25 16:54:25,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:54:25,098 INFO L93 Difference]: Finished difference Result 8632 states and 12090 transitions. [2022-11-25 16:54:25,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 16:54:25,099 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 94 [2022-11-25 16:54:25,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:54:25,119 INFO L225 Difference]: With dead ends: 8632 [2022-11-25 16:54:25,120 INFO L226 Difference]: Without dead ends: 4327 [2022-11-25 16:54:25,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:54:25,131 INFO L413 NwaCegarLoop]: 545 mSDtfsCounter, 0 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1088 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 16:54:25,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1088 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 16:54:25,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4327 states. [2022-11-25 16:54:25,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4327 to 4327. [2022-11-25 16:54:25,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4327 states, 3102 states have (on average 1.2730496453900708) internal successors, (3949), 3137 states have internal predecessors, (3949), 954 states have call successors, (954), 249 states have call predecessors, (954), 270 states have return successors, (1082), 960 states have call predecessors, (1082), 950 states have call successors, (1082) [2022-11-25 16:54:25,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4327 states to 4327 states and 5985 transitions. [2022-11-25 16:54:25,644 INFO L78 Accepts]: Start accepts. Automaton has 4327 states and 5985 transitions. Word has length 94 [2022-11-25 16:54:25,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:54:25,645 INFO L495 AbstractCegarLoop]: Abstraction has 4327 states and 5985 transitions. [2022-11-25 16:54:25,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-25 16:54:25,645 INFO L276 IsEmpty]: Start isEmpty. Operand 4327 states and 5985 transitions. [2022-11-25 16:54:25,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-25 16:54:25,648 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:54:25,648 INFO L195 NwaCegarLoop]: trace histogram [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 16:54:25,675 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-25 16:54:25,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:54:25,862 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:54:25,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:54:25,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1449980852, now seen corresponding path program 1 times [2022-11-25 16:54:25,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 16:54:25,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2095586847] [2022-11-25 16:54:25,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:54:25,864 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:54:25,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 16:54:25,865 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 16:54:25,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-25 16:54:26,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:54:26,587 INFO L263 TraceCheckSpWp]: Trace formula consists of 899 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 16:54:26,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:54:26,698 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-25 16:54:26,698 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 16:54:27,031 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-25 16:54:27,031 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 16:54:27,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2095586847] [2022-11-25 16:54:27,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2095586847] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 16:54:27,031 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 16:54:27,032 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-11-25 16:54:27,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387997467] [2022-11-25 16:54:27,032 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 16:54:27,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 16:54:27,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 16:54:27,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 16:54:27,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-25 16:54:27,034 INFO L87 Difference]: Start difference. First operand 4327 states and 5985 transitions. Second operand has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-25 16:54:27,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:54:27,713 INFO L93 Difference]: Finished difference Result 8672 states and 12150 transitions. [2022-11-25 16:54:27,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 16:54:27,714 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 95 [2022-11-25 16:54:27,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:54:27,740 INFO L225 Difference]: With dead ends: 8672 [2022-11-25 16:54:27,740 INFO L226 Difference]: Without dead ends: 4357 [2022-11-25 16:54:27,752 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2022-11-25 16:54:27,753 INFO L413 NwaCegarLoop]: 545 mSDtfsCounter, 0 mSDsluCounter, 2172 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2717 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:54:27,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2717 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 16:54:27,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4357 states. [2022-11-25 16:54:28,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4357 to 4357. [2022-11-25 16:54:28,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4357 states, 3132 states have (on average 1.2704342273307792) internal successors, (3979), 3167 states have internal predecessors, (3979), 954 states have call successors, (954), 249 states have call predecessors, (954), 270 states have return successors, (1082), 960 states have call predecessors, (1082), 950 states have call successors, (1082) [2022-11-25 16:54:28,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4357 states to 4357 states and 6015 transitions. [2022-11-25 16:54:28,271 INFO L78 Accepts]: Start accepts. Automaton has 4357 states and 6015 transitions. Word has length 95 [2022-11-25 16:54:28,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:54:28,271 INFO L495 AbstractCegarLoop]: Abstraction has 4357 states and 6015 transitions. [2022-11-25 16:54:28,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-25 16:54:28,272 INFO L276 IsEmpty]: Start isEmpty. Operand 4357 states and 6015 transitions. [2022-11-25 16:54:28,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-25 16:54:28,275 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:54:28,275 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-11-25 16:54:28,298 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-25 16:54:28,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:54:28,490 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:54:28,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:54:28,491 INFO L85 PathProgramCache]: Analyzing trace with hash 989690663, now seen corresponding path program 2 times [2022-11-25 16:54:28,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 16:54:28,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1018066878] [2022-11-25 16:54:28,491 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 16:54:28,491 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:54:28,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 16:54:28,492 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 16:54:28,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-25 16:54:29,126 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-25 16:54:29,126 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 16:54:29,158 INFO L263 TraceCheckSpWp]: Trace formula consists of 831 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 16:54:29,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:54:29,360 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-25 16:54:29,360 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 16:54:29,360 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 16:54:29,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1018066878] [2022-11-25 16:54:29,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1018066878] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:54:29,361 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:54:29,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 16:54:29,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066555623] [2022-11-25 16:54:29,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:54:29,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 16:54:29,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 16:54:29,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 16:54:29,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 16:54:29,362 INFO L87 Difference]: Start difference. First operand 4357 states and 6015 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 5 states have internal predecessors, (70), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 4 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-25 16:54:29,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:54:29,950 INFO L93 Difference]: Finished difference Result 8726 states and 12094 transitions. [2022-11-25 16:54:29,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 16:54:29,951 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 5 states have internal predecessors, (70), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 4 states have call predecessors, (11), 1 states have call successors, (11) Word has length 98 [2022-11-25 16:54:29,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:54:29,969 INFO L225 Difference]: With dead ends: 8726 [2022-11-25 16:54:29,969 INFO L226 Difference]: Without dead ends: 4381 [2022-11-25 16:54:29,982 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 16:54:29,983 INFO L413 NwaCegarLoop]: 551 mSDtfsCounter, 2 mSDsluCounter, 2740 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3291 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:54:29,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3291 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 16:54:29,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4381 states. [2022-11-25 16:54:30,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4381 to 4365. [2022-11-25 16:54:30,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4365 states, 3140 states have (on average 1.2697452229299364) internal successors, (3987), 3171 states have internal predecessors, (3987), 954 states have call successors, (954), 249 states have call predecessors, (954), 270 states have return successors, (1082), 964 states have call predecessors, (1082), 950 states have call successors, (1082) [2022-11-25 16:54:30,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4365 states to 4365 states and 6023 transitions. [2022-11-25 16:54:30,435 INFO L78 Accepts]: Start accepts. Automaton has 4365 states and 6023 transitions. Word has length 98 [2022-11-25 16:54:30,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:54:30,435 INFO L495 AbstractCegarLoop]: Abstraction has 4365 states and 6023 transitions. [2022-11-25 16:54:30,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 5 states have internal predecessors, (70), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 4 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-25 16:54:30,436 INFO L276 IsEmpty]: Start isEmpty. Operand 4365 states and 6023 transitions. [2022-11-25 16:54:30,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-25 16:54:30,440 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:54:30,440 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-11-25 16:54:30,467 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-11-25 16:54:30,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:54:30,662 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:54:30,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:54:30,663 INFO L85 PathProgramCache]: Analyzing trace with hash 1398514888, now seen corresponding path program 1 times [2022-11-25 16:54:30,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 16:54:30,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1023679515] [2022-11-25 16:54:30,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:54:30,664 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:54:30,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 16:54:30,666 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 16:54:30,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-11-25 16:54:31,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:54:31,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 926 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 16:54:31,632 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:54:31,871 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-25 16:54:31,872 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 16:54:31,872 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 16:54:31,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1023679515] [2022-11-25 16:54:31,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1023679515] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:54:31,872 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:54:31,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 16:54:31,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553966067] [2022-11-25 16:54:31,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:54:31,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 16:54:31,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 16:54:31,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 16:54:31,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 16:54:31,874 INFO L87 Difference]: Start difference. First operand 4365 states and 6023 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-25 16:54:33,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:54:33,606 INFO L93 Difference]: Finished difference Result 9875 states and 13944 transitions. [2022-11-25 16:54:33,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 16:54:33,607 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) Word has length 98 [2022-11-25 16:54:33,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:54:33,629 INFO L225 Difference]: With dead ends: 9875 [2022-11-25 16:54:33,629 INFO L226 Difference]: Without dead ends: 5522 [2022-11-25 16:54:33,641 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 16:54:33,642 INFO L413 NwaCegarLoop]: 822 mSDtfsCounter, 173 mSDsluCounter, 2221 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 3043 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-25 16:54:33,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 3043 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-25 16:54:33,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5522 states. [2022-11-25 16:54:34,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5522 to 3693. [2022-11-25 16:54:34,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3693 states, 2682 states have (on average 1.267710663683818) internal successors, (3400), 2697 states have internal predecessors, (3400), 788 states have call successors, (788), 203 states have call predecessors, (788), 222 states have return successors, (898), 812 states have call predecessors, (898), 784 states have call successors, (898) [2022-11-25 16:54:34,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3693 states to 3693 states and 5086 transitions. [2022-11-25 16:54:34,142 INFO L78 Accepts]: Start accepts. Automaton has 3693 states and 5086 transitions. Word has length 98 [2022-11-25 16:54:34,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:54:34,143 INFO L495 AbstractCegarLoop]: Abstraction has 3693 states and 5086 transitions. [2022-11-25 16:54:34,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-25 16:54:34,143 INFO L276 IsEmpty]: Start isEmpty. Operand 3693 states and 5086 transitions. [2022-11-25 16:54:34,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-11-25 16:54:34,149 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:54:34,150 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:54:34,177 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-11-25 16:54:34,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:54:34,372 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:54:34,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:54:34,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1871827029, now seen corresponding path program 1 times [2022-11-25 16:54:34,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 16:54:34,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1341187567] [2022-11-25 16:54:34,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:54:34,373 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:54:34,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 16:54:34,374 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 16:54:34,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-11-25 16:54:35,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:54:35,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 842 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-25 16:54:35,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:54:35,310 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-25 16:54:35,310 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 16:54:35,310 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 16:54:35,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1341187567] [2022-11-25 16:54:35,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1341187567] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:54:35,311 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:54:35,311 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 16:54:35,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324094649] [2022-11-25 16:54:35,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:54:35,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 16:54:35,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 16:54:35,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 16:54:35,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 16:54:35,312 INFO L87 Difference]: Start difference. First operand 3693 states and 5086 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-25 16:54:36,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:54:36,144 INFO L93 Difference]: Finished difference Result 8433 states and 11958 transitions. [2022-11-25 16:54:36,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 16:54:36,145 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 87 [2022-11-25 16:54:36,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:54:36,163 INFO L225 Difference]: With dead ends: 8433 [2022-11-25 16:54:36,163 INFO L226 Difference]: Without dead ends: 5176 [2022-11-25 16:54:36,170 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 16:54:36,171 INFO L413 NwaCegarLoop]: 828 mSDtfsCounter, 167 mSDsluCounter, 2243 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 3071 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 16:54:36,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 3071 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 16:54:36,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5176 states. [2022-11-25 16:54:36,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5176 to 3509. [2022-11-25 16:54:36,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3509 states, 2554 states have (on average 1.2623335943617855) internal successors, (3224), 2557 states have internal predecessors, (3224), 732 states have call successors, (732), 201 states have call predecessors, (732), 222 states have return successors, (848), 766 states have call predecessors, (848), 728 states have call successors, (848) [2022-11-25 16:54:36,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3509 states to 3509 states and 4804 transitions. [2022-11-25 16:54:36,638 INFO L78 Accepts]: Start accepts. Automaton has 3509 states and 4804 transitions. Word has length 87 [2022-11-25 16:54:36,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:54:36,639 INFO L495 AbstractCegarLoop]: Abstraction has 3509 states and 4804 transitions. [2022-11-25 16:54:36,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-25 16:54:36,640 INFO L276 IsEmpty]: Start isEmpty. Operand 3509 states and 4804 transitions. [2022-11-25 16:54:36,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-11-25 16:54:36,643 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:54:36,644 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:54:36,670 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-11-25 16:54:36,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:54:36,858 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:54:36,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:54:36,859 INFO L85 PathProgramCache]: Analyzing trace with hash -205382314, now seen corresponding path program 1 times [2022-11-25 16:54:36,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 16:54:36,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [26078554] [2022-11-25 16:54:36,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:54:36,860 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:54:36,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 16:54:36,861 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 16:54:36,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-11-25 16:54:37,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:54:37,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 842 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-25 16:54:37,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:54:38,166 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 16:54:38,167 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 16:54:38,167 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 16:54:38,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [26078554] [2022-11-25 16:54:38,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [26078554] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:54:38,168 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:54:38,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 16:54:38,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530563601] [2022-11-25 16:54:38,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:54:38,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 16:54:38,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 16:54:38,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 16:54:38,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 16:54:38,170 INFO L87 Difference]: Start difference. First operand 3509 states and 4804 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-25 16:54:38,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:54:38,563 INFO L93 Difference]: Finished difference Result 5169 states and 7111 transitions. [2022-11-25 16:54:38,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 16:54:38,563 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) Word has length 87 [2022-11-25 16:54:38,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:54:38,577 INFO L225 Difference]: With dead ends: 5169 [2022-11-25 16:54:38,577 INFO L226 Difference]: Without dead ends: 3509 [2022-11-25 16:54:38,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 16:54:38,584 INFO L413 NwaCegarLoop]: 544 mSDtfsCounter, 2 mSDsluCounter, 2710 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3254 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:54:38,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3254 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 16:54:38,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3509 states. [2022-11-25 16:54:39,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3509 to 3509. [2022-11-25 16:54:39,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3509 states, 2554 states have (on average 1.2607674236491777) internal successors, (3220), 2557 states have internal predecessors, (3220), 732 states have call successors, (732), 201 states have call predecessors, (732), 222 states have return successors, (848), 766 states have call predecessors, (848), 728 states have call successors, (848) [2022-11-25 16:54:39,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3509 states to 3509 states and 4800 transitions. [2022-11-25 16:54:39,036 INFO L78 Accepts]: Start accepts. Automaton has 3509 states and 4800 transitions. Word has length 87 [2022-11-25 16:54:39,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:54:39,037 INFO L495 AbstractCegarLoop]: Abstraction has 3509 states and 4800 transitions. [2022-11-25 16:54:39,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-25 16:54:39,037 INFO L276 IsEmpty]: Start isEmpty. Operand 3509 states and 4800 transitions. [2022-11-25 16:54:39,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-11-25 16:54:39,041 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:54:39,042 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-25 16:54:39,069 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-11-25 16:54:39,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:54:39,258 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:54:39,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:54:39,259 INFO L85 PathProgramCache]: Analyzing trace with hash 2079481141, now seen corresponding path program 1 times [2022-11-25 16:54:39,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 16:54:39,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1437774930] [2022-11-25 16:54:39,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:54:39,260 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:54:39,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 16:54:39,262 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 16:54:39,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-11-25 16:54:40,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:54:40,158 INFO L263 TraceCheckSpWp]: Trace formula consists of 848 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 16:54:40,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:54:40,203 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-25 16:54:40,203 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 16:54:40,203 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 16:54:40,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1437774930] [2022-11-25 16:54:40,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1437774930] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:54:40,204 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:54:40,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 16:54:40,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889928219] [2022-11-25 16:54:40,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:54:40,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 16:54:40,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 16:54:40,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 16:54:40,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:54:40,205 INFO L87 Difference]: Start difference. First operand 3509 states and 4800 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-25 16:54:40,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:54:40,883 INFO L93 Difference]: Finished difference Result 6168 states and 8664 transitions. [2022-11-25 16:54:40,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 16:54:40,884 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 87 [2022-11-25 16:54:40,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:54:40,901 INFO L225 Difference]: With dead ends: 6168 [2022-11-25 16:54:40,902 INFO L226 Difference]: Without dead ends: 4508 [2022-11-25 16:54:40,909 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:54:40,909 INFO L413 NwaCegarLoop]: 842 mSDtfsCounter, 197 mSDsluCounter, 594 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 1436 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 16:54:40,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 1436 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 16:54:40,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4508 states. [2022-11-25 16:54:41,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4508 to 3517. [2022-11-25 16:54:41,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3517 states, 2562 states have (on average 1.259953161592506) internal successors, (3228), 2565 states have internal predecessors, (3228), 732 states have call successors, (732), 201 states have call predecessors, (732), 222 states have return successors, (848), 766 states have call predecessors, (848), 728 states have call successors, (848) [2022-11-25 16:54:41,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3517 states to 3517 states and 4808 transitions. [2022-11-25 16:54:41,456 INFO L78 Accepts]: Start accepts. Automaton has 3517 states and 4808 transitions. Word has length 87 [2022-11-25 16:54:41,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:54:41,457 INFO L495 AbstractCegarLoop]: Abstraction has 3517 states and 4808 transitions. [2022-11-25 16:54:41,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-25 16:54:41,457 INFO L276 IsEmpty]: Start isEmpty. Operand 3517 states and 4808 transitions. [2022-11-25 16:54:41,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-11-25 16:54:41,460 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:54:41,460 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:54:41,488 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-11-25 16:54:41,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:54:41,683 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:54:41,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:54:41,684 INFO L85 PathProgramCache]: Analyzing trace with hash 390816807, now seen corresponding path program 1 times [2022-11-25 16:54:41,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 16:54:41,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [151119987] [2022-11-25 16:54:41,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:54:41,685 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:54:41,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 16:54:41,686 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 16:54:41,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-11-25 16:54:42,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:54:42,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 782 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 16:54:42,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:54:42,657 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 16:54:42,657 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 16:54:42,657 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 16:54:42,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [151119987] [2022-11-25 16:54:42,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [151119987] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:54:42,657 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:54:42,658 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 16:54:42,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763460323] [2022-11-25 16:54:42,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:54:42,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 16:54:42,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 16:54:42,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 16:54:42,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 16:54:42,659 INFO L87 Difference]: Start difference. First operand 3517 states and 4808 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-11-25 16:54:43,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:54:43,363 INFO L93 Difference]: Finished difference Result 7090 states and 9677 transitions. [2022-11-25 16:54:43,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 16:54:43,363 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 94 [2022-11-25 16:54:43,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:54:43,377 INFO L225 Difference]: With dead ends: 7090 [2022-11-25 16:54:43,377 INFO L226 Difference]: Without dead ends: 3573 [2022-11-25 16:54:43,385 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 16:54:43,386 INFO L413 NwaCegarLoop]: 555 mSDtfsCounter, 16 mSDsluCounter, 1090 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 1645 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 16:54:43,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 1645 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 16:54:43,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3573 states. [2022-11-25 16:54:43,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3573 to 3535. [2022-11-25 16:54:43,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3535 states, 2574 states have (on average 1.257964257964258) internal successors, (3238), 2577 states have internal predecessors, (3238), 735 states have call successors, (735), 204 states have call predecessors, (735), 225 states have return successors, (851), 769 states have call predecessors, (851), 731 states have call successors, (851) [2022-11-25 16:54:43,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3535 states to 3535 states and 4824 transitions. [2022-11-25 16:54:43,878 INFO L78 Accepts]: Start accepts. Automaton has 3535 states and 4824 transitions. Word has length 94 [2022-11-25 16:54:43,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:54:43,879 INFO L495 AbstractCegarLoop]: Abstraction has 3535 states and 4824 transitions. [2022-11-25 16:54:43,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-11-25 16:54:43,879 INFO L276 IsEmpty]: Start isEmpty. Operand 3535 states and 4824 transitions. [2022-11-25 16:54:43,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-11-25 16:54:43,882 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:54:43,882 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:54:43,913 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-11-25 16:54:44,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:54:44,098 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:54:44,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:54:44,098 INFO L85 PathProgramCache]: Analyzing trace with hash -153386871, now seen corresponding path program 1 times [2022-11-25 16:54:44,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 16:54:44,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [764479937] [2022-11-25 16:54:44,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:54:44,099 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:54:44,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 16:54:44,101 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 16:54:44,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-11-25 16:54:44,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:54:44,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 897 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-25 16:54:44,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:54:45,394 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-25 16:54:45,394 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 16:54:45,395 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 16:54:45,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [764479937] [2022-11-25 16:54:45,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [764479937] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:54:45,395 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:54:45,395 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-25 16:54:45,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924852152] [2022-11-25 16:54:45,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:54:45,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 16:54:45,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 16:54:45,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 16:54:45,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-25 16:54:45,398 INFO L87 Difference]: Start difference. First operand 3535 states and 4824 transitions. Second operand has 10 states, 10 states have (on average 7.0) internal successors, (70), 7 states have internal predecessors, (70), 2 states have call successors, (12), 2 states have call predecessors, (12), 5 states have return successors, (11), 5 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-25 16:54:48,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:54:48,650 INFO L93 Difference]: Finished difference Result 8520 states and 11996 transitions. [2022-11-25 16:54:48,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 16:54:48,651 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 7 states have internal predecessors, (70), 2 states have call successors, (12), 2 states have call predecessors, (12), 5 states have return successors, (11), 5 states have call predecessors, (11), 2 states have call successors, (11) Word has length 96 [2022-11-25 16:54:48,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:54:48,674 INFO L225 Difference]: With dead ends: 8520 [2022-11-25 16:54:48,675 INFO L226 Difference]: Without dead ends: 5421 [2022-11-25 16:54:48,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-25 16:54:48,685 INFO L413 NwaCegarLoop]: 878 mSDtfsCounter, 228 mSDsluCounter, 6643 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 7521 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-25 16:54:48,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [301 Valid, 7521 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-25 16:54:48,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5421 states. [2022-11-25 16:54:49,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5421 to 3535. [2022-11-25 16:54:49,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3535 states, 2574 states have (on average 1.254856254856255) internal successors, (3230), 2577 states have internal predecessors, (3230), 735 states have call successors, (735), 204 states have call predecessors, (735), 225 states have return successors, (851), 769 states have call predecessors, (851), 731 states have call successors, (851) [2022-11-25 16:54:49,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3535 states to 3535 states and 4816 transitions. [2022-11-25 16:54:49,370 INFO L78 Accepts]: Start accepts. Automaton has 3535 states and 4816 transitions. Word has length 96 [2022-11-25 16:54:49,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:54:49,371 INFO L495 AbstractCegarLoop]: Abstraction has 3535 states and 4816 transitions. [2022-11-25 16:54:49,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 7 states have internal predecessors, (70), 2 states have call successors, (12), 2 states have call predecessors, (12), 5 states have return successors, (11), 5 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-25 16:54:49,371 INFO L276 IsEmpty]: Start isEmpty. Operand 3535 states and 4816 transitions. [2022-11-25 16:54:49,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-11-25 16:54:49,374 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:54:49,374 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:54:49,402 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2022-11-25 16:54:49,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:54:49,602 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:54:49,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:54:49,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1118734186, now seen corresponding path program 1 times [2022-11-25 16:54:49,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 16:54:49,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [96619435] [2022-11-25 16:54:49,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:54:49,604 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:54:49,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 16:54:49,606 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 16:54:49,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-11-25 16:54:50,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:54:50,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 852 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 16:54:50,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:54:51,357 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:54:51,357 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 16:54:52,282 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-25 16:54:52,282 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 16:54:52,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [96619435] [2022-11-25 16:54:52,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [96619435] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-25 16:54:52,282 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 16:54:52,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2022-11-25 16:54:52,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339930747] [2022-11-25 16:54:52,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:54:52,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 16:54:52,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 16:54:52,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 16:54:52,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-25 16:54:52,284 INFO L87 Difference]: Start difference. First operand 3535 states and 4816 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 5 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2022-11-25 16:54:54,548 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 16:54:57,779 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 16:54:59,822 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 16:55:02,902 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 16:55:05,053 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 16:55:07,056 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 16:55:11,436 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 16:55:13,447 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 16:55:17,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:55:17,278 INFO L93 Difference]: Finished difference Result 6733 states and 9209 transitions. [2022-11-25 16:55:17,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 16:55:17,279 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 5 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 89 [2022-11-25 16:55:17,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:55:17,339 INFO L225 Difference]: With dead ends: 6733 [2022-11-25 16:55:17,339 INFO L226 Difference]: Without dead ends: 6730 [2022-11-25 16:55:17,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-25 16:55:17,342 INFO L413 NwaCegarLoop]: 882 mSDtfsCounter, 1473 mSDsluCounter, 719 mSDsCounter, 0 mSdLazyCounter, 1156 mSolverCounterSat, 386 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1551 SdHoareTripleChecker+Valid, 1601 SdHoareTripleChecker+Invalid, 1549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 386 IncrementalHoareTripleChecker+Valid, 1156 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.0s IncrementalHoareTripleChecker+Time [2022-11-25 16:55:17,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1551 Valid, 1601 Invalid, 1549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [386 Valid, 1156 Invalid, 7 Unknown, 0 Unchecked, 24.0s Time] [2022-11-25 16:55:17,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6730 states. [2022-11-25 16:55:18,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6730 to 6618. [2022-11-25 16:55:18,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6618 states, 4808 states have (on average 1.2583194675540765) internal successors, (6050), 4803 states have internal predecessors, (6050), 1393 states have call successors, (1393), 375 states have call predecessors, (1393), 416 states have return successors, (1648), 1475 states have call predecessors, (1648), 1389 states have call successors, (1648) [2022-11-25 16:55:18,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6618 states to 6618 states and 9091 transitions. [2022-11-25 16:55:18,226 INFO L78 Accepts]: Start accepts. Automaton has 6618 states and 9091 transitions. Word has length 89 [2022-11-25 16:55:18,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:55:18,226 INFO L495 AbstractCegarLoop]: Abstraction has 6618 states and 9091 transitions. [2022-11-25 16:55:18,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 5 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2022-11-25 16:55:18,227 INFO L276 IsEmpty]: Start isEmpty. Operand 6618 states and 9091 transitions. [2022-11-25 16:55:18,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-11-25 16:55:18,230 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:55:18,230 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-25 16:55:18,257 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2022-11-25 16:55:18,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:55:18,452 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:55:18,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:55:18,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1748979270, now seen corresponding path program 1 times [2022-11-25 16:55:18,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 16:55:18,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [527818964] [2022-11-25 16:55:18,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:55:18,454 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:55:18,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 16:55:18,455 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 16:55:18,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2022-11-25 16:55:19,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:55:19,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 806 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-25 16:55:19,333 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:55:20,120 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 16:55:20,120 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 16:55:20,983 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 16:55:20,983 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 16:55:20,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [527818964] [2022-11-25 16:55:20,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [527818964] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 16:55:20,984 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 16:55:20,984 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 13 [2022-11-25 16:55:20,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286556454] [2022-11-25 16:55:20,985 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 16:55:20,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 16:55:20,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 16:55:20,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 16:55:20,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2022-11-25 16:55:20,987 INFO L87 Difference]: Start difference. First operand 6618 states and 9091 transitions. Second operand has 13 states, 13 states have (on average 6.076923076923077) internal successors, (79), 10 states have internal predecessors, (79), 3 states have call successors, (13), 2 states have call predecessors, (13), 6 states have return successors, (13), 6 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-25 16:55:24,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:55:24,195 INFO L93 Difference]: Finished difference Result 16112 states and 22909 transitions. [2022-11-25 16:55:24,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 16:55:24,196 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.076923076923077) internal successors, (79), 10 states have internal predecessors, (79), 3 states have call successors, (13), 2 states have call predecessors, (13), 6 states have return successors, (13), 6 states have call predecessors, (13), 3 states have call successors, (13) Word has length 94 [2022-11-25 16:55:24,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:55:24,230 INFO L225 Difference]: With dead ends: 16112 [2022-11-25 16:55:24,230 INFO L226 Difference]: Without dead ends: 9930 [2022-11-25 16:55:24,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2022-11-25 16:55:24,249 INFO L413 NwaCegarLoop]: 821 mSDtfsCounter, 221 mSDsluCounter, 7794 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 8615 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-25 16:55:24,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 8615 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 336 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-25 16:55:24,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9930 states. [2022-11-25 16:55:25,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9930 to 6620. [2022-11-25 16:55:25,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6620 states, 4806 states have (on average 1.2584269662921348) internal successors, (6048), 4811 states have internal predecessors, (6048), 1393 states have call successors, (1393), 375 states have call predecessors, (1393), 420 states have return successors, (1658), 1461 states have call predecessors, (1658), 1389 states have call successors, (1658) [2022-11-25 16:55:25,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6620 states to 6620 states and 9099 transitions. [2022-11-25 16:55:25,474 INFO L78 Accepts]: Start accepts. Automaton has 6620 states and 9099 transitions. Word has length 94 [2022-11-25 16:55:25,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:55:25,474 INFO L495 AbstractCegarLoop]: Abstraction has 6620 states and 9099 transitions. [2022-11-25 16:55:25,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.076923076923077) internal successors, (79), 10 states have internal predecessors, (79), 3 states have call successors, (13), 2 states have call predecessors, (13), 6 states have return successors, (13), 6 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-25 16:55:25,476 INFO L276 IsEmpty]: Start isEmpty. Operand 6620 states and 9099 transitions. [2022-11-25 16:55:25,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-25 16:55:25,480 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:55:25,480 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:55:25,504 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2022-11-25 16:55:25,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:55:25,682 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:55:25,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:55:25,683 INFO L85 PathProgramCache]: Analyzing trace with hash 832679025, now seen corresponding path program 1 times [2022-11-25 16:55:25,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 16:55:25,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1119104283] [2022-11-25 16:55:25,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:55:25,684 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:55:25,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 16:55:25,684 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 16:55:25,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2022-11-25 16:55:26,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:55:26,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 814 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-25 16:55:26,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:55:27,016 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 16:55:27,017 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 16:55:27,017 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 16:55:27,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1119104283] [2022-11-25 16:55:27,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1119104283] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:55:27,017 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:55:27,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-25 16:55:27,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358944307] [2022-11-25 16:55:27,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:55:27,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 16:55:27,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 16:55:27,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 16:55:27,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-25 16:55:27,020 INFO L87 Difference]: Start difference. First operand 6620 states and 9099 transitions. Second operand has 10 states, 10 states have (on average 7.3) internal successors, (73), 7 states have internal predecessors, (73), 2 states have call successors, (11), 2 states have call predecessors, (11), 5 states have return successors, (11), 5 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-25 16:55:28,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:55:28,887 INFO L93 Difference]: Finished difference Result 13855 states and 19622 transitions. [2022-11-25 16:55:28,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 16:55:28,888 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.3) internal successors, (73), 7 states have internal predecessors, (73), 2 states have call successors, (11), 2 states have call predecessors, (11), 5 states have return successors, (11), 5 states have call predecessors, (11), 2 states have call successors, (11) Word has length 97 [2022-11-25 16:55:28,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:55:28,910 INFO L225 Difference]: With dead ends: 13855 [2022-11-25 16:55:28,910 INFO L226 Difference]: Without dead ends: 9086 [2022-11-25 16:55:28,920 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-25 16:55:28,921 INFO L413 NwaCegarLoop]: 834 mSDtfsCounter, 213 mSDsluCounter, 6334 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 7168 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-25 16:55:28,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 7168 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-25 16:55:28,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9086 states. [2022-11-25 16:55:29,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9086 to 6620. [2022-11-25 16:55:29,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6620 states, 4806 states have (on average 1.256762380357886) internal successors, (6040), 4811 states have internal predecessors, (6040), 1393 states have call successors, (1393), 375 states have call predecessors, (1393), 420 states have return successors, (1658), 1461 states have call predecessors, (1658), 1389 states have call successors, (1658) [2022-11-25 16:55:30,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6620 states to 6620 states and 9091 transitions. [2022-11-25 16:55:30,014 INFO L78 Accepts]: Start accepts. Automaton has 6620 states and 9091 transitions. Word has length 97 [2022-11-25 16:55:30,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:55:30,014 INFO L495 AbstractCegarLoop]: Abstraction has 6620 states and 9091 transitions. [2022-11-25 16:55:30,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.3) internal successors, (73), 7 states have internal predecessors, (73), 2 states have call successors, (11), 2 states have call predecessors, (11), 5 states have return successors, (11), 5 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-25 16:55:30,015 INFO L276 IsEmpty]: Start isEmpty. Operand 6620 states and 9091 transitions. [2022-11-25 16:55:30,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-11-25 16:55:30,019 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:55:30,019 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:55:30,042 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2022-11-25 16:55:30,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:55:30,241 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:55:30,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:55:30,241 INFO L85 PathProgramCache]: Analyzing trace with hash -1118058599, now seen corresponding path program 1 times [2022-11-25 16:55:30,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 16:55:30,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1300116466] [2022-11-25 16:55:30,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:55:30,243 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:55:30,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 16:55:30,244 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 16:55:30,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2022-11-25 16:55:31,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:55:31,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 984 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-25 16:55:31,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:55:31,533 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-25 16:55:31,534 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 16:55:31,534 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 16:55:31,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1300116466] [2022-11-25 16:55:31,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1300116466] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:55:31,534 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:55:31,535 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 16:55:31,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928271710] [2022-11-25 16:55:31,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:55:31,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 16:55:31,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 16:55:31,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 16:55:31,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 16:55:31,539 INFO L87 Difference]: Start difference. First operand 6620 states and 9091 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-25 16:55:33,726 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 16:55:36,391 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 16:55:36,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:55:36,656 INFO L93 Difference]: Finished difference Result 13300 states and 18264 transitions. [2022-11-25 16:55:36,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 16:55:36,656 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 108 [2022-11-25 16:55:36,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:55:36,669 INFO L225 Difference]: With dead ends: 13300 [2022-11-25 16:55:36,669 INFO L226 Difference]: Without dead ends: 6686 [2022-11-25 16:55:36,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-25 16:55:36,679 INFO L413 NwaCegarLoop]: 562 mSDtfsCounter, 16 mSDsluCounter, 2214 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 2776 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-11-25 16:55:36,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 2776 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 25 Invalid, 2 Unknown, 0 Unchecked, 4.2s Time] [2022-11-25 16:55:36,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6686 states. [2022-11-25 16:55:37,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6686 to 6629. [2022-11-25 16:55:37,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6629 states, 4815 states have (on average 1.2562824506749741) internal successors, (6049), 4817 states have internal predecessors, (6049), 1393 states have call successors, (1393), 375 states have call predecessors, (1393), 420 states have return successors, (1656), 1464 states have call predecessors, (1656), 1389 states have call successors, (1656) [2022-11-25 16:55:37,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6629 states to 6629 states and 9098 transitions. [2022-11-25 16:55:37,417 INFO L78 Accepts]: Start accepts. Automaton has 6629 states and 9098 transitions. Word has length 108 [2022-11-25 16:55:37,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:55:37,418 INFO L495 AbstractCegarLoop]: Abstraction has 6629 states and 9098 transitions. [2022-11-25 16:55:37,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-25 16:55:37,418 INFO L276 IsEmpty]: Start isEmpty. Operand 6629 states and 9098 transitions. [2022-11-25 16:55:37,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-11-25 16:55:37,422 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:55:37,422 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:55:37,460 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2022-11-25 16:55:37,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:55:37,649 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:55:37,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:55:37,649 INFO L85 PathProgramCache]: Analyzing trace with hash 1967666458, now seen corresponding path program 1 times [2022-11-25 16:55:37,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 16:55:37,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1285598987] [2022-11-25 16:55:37,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:55:37,650 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:55:37,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 16:55:37,651 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 16:55:37,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2022-11-25 16:55:38,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:55:38,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 990 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 16:55:38,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:55:38,680 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-25 16:55:38,680 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 16:55:38,681 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 16:55:38,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1285598987] [2022-11-25 16:55:38,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1285598987] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:55:38,681 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:55:38,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 16:55:38,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876349291] [2022-11-25 16:55:38,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:55:38,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 16:55:38,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 16:55:38,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 16:55:38,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:55:38,683 INFO L87 Difference]: Start difference. First operand 6629 states and 9098 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-25 16:55:39,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:55:39,364 INFO L93 Difference]: Finished difference Result 13285 states and 18236 transitions. [2022-11-25 16:55:39,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 16:55:39,364 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 108 [2022-11-25 16:55:39,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:55:39,385 INFO L225 Difference]: With dead ends: 13285 [2022-11-25 16:55:39,385 INFO L226 Difference]: Without dead ends: 6668 [2022-11-25 16:55:39,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:55:39,402 INFO L413 NwaCegarLoop]: 544 mSDtfsCounter, 1 mSDsluCounter, 541 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1085 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:55:39,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1085 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 16:55:39,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6668 states. [2022-11-25 16:55:40,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6668 to 6655. [2022-11-25 16:55:40,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6655 states, 4841 states have (on average 1.2549060111547201) internal successors, (6075), 4843 states have internal predecessors, (6075), 1393 states have call successors, (1393), 375 states have call predecessors, (1393), 420 states have return successors, (1656), 1464 states have call predecessors, (1656), 1389 states have call successors, (1656) [2022-11-25 16:55:40,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6655 states to 6655 states and 9124 transitions. [2022-11-25 16:55:40,109 INFO L78 Accepts]: Start accepts. Automaton has 6655 states and 9124 transitions. Word has length 108 [2022-11-25 16:55:40,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:55:40,110 INFO L495 AbstractCegarLoop]: Abstraction has 6655 states and 9124 transitions. [2022-11-25 16:55:40,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-25 16:55:40,110 INFO L276 IsEmpty]: Start isEmpty. Operand 6655 states and 9124 transitions. [2022-11-25 16:55:40,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-11-25 16:55:40,113 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:55:40,113 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-25 16:55:40,145 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2022-11-25 16:55:40,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:55:40,334 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:55:40,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:55:40,335 INFO L85 PathProgramCache]: Analyzing trace with hash -2053204873, now seen corresponding path program 1 times [2022-11-25 16:55:40,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 16:55:40,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [863392486] [2022-11-25 16:55:40,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:55:40,336 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:55:40,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 16:55:40,339 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 16:55:40,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2022-11-25 16:55:41,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:55:41,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 873 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-25 16:55:41,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:55:42,138 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 16:55:42,139 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 16:55:42,139 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 16:55:42,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [863392486] [2022-11-25 16:55:42,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [863392486] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:55:42,139 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:55:42,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-25 16:55:42,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678430124] [2022-11-25 16:55:42,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:55:42,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 16:55:42,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 16:55:42,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 16:55:42,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-25 16:55:42,142 INFO L87 Difference]: Start difference. First operand 6655 states and 9124 transitions. Second operand has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 9 states have internal predecessors, (80), 3 states have call successors, (11), 2 states have call predecessors, (11), 6 states have return successors, (11), 6 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-25 16:55:44,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:55:44,767 INFO L93 Difference]: Finished difference Result 13884 states and 19611 transitions. [2022-11-25 16:55:44,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 16:55:44,768 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 9 states have internal predecessors, (80), 3 states have call successors, (11), 2 states have call predecessors, (11), 6 states have return successors, (11), 6 states have call predecessors, (11), 3 states have call successors, (11) Word has length 104 [2022-11-25 16:55:44,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:55:44,791 INFO L225 Difference]: With dead ends: 13884 [2022-11-25 16:55:44,791 INFO L226 Difference]: Without dead ends: 9088 [2022-11-25 16:55:44,799 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-11-25 16:55:44,800 INFO L413 NwaCegarLoop]: 827 mSDtfsCounter, 209 mSDsluCounter, 7917 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 8744 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-25 16:55:44,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 8744 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-25 16:55:44,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9088 states. [2022-11-25 16:55:45,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9088 to 6599. [2022-11-25 16:55:45,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6599 states, 4811 states have (on average 1.2548326751195178) internal successors, (6037), 4823 states have internal predecessors, (6037), 1369 states have call successors, (1369), 371 states have call predecessors, (1369), 418 states have return successors, (1620), 1432 states have call predecessors, (1620), 1365 states have call successors, (1620) [2022-11-25 16:55:45,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6599 states to 6599 states and 9026 transitions. [2022-11-25 16:55:45,722 INFO L78 Accepts]: Start accepts. Automaton has 6599 states and 9026 transitions. Word has length 104 [2022-11-25 16:55:45,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:55:45,723 INFO L495 AbstractCegarLoop]: Abstraction has 6599 states and 9026 transitions. [2022-11-25 16:55:45,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 9 states have internal predecessors, (80), 3 states have call successors, (11), 2 states have call predecessors, (11), 6 states have return successors, (11), 6 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-25 16:55:45,723 INFO L276 IsEmpty]: Start isEmpty. Operand 6599 states and 9026 transitions. [2022-11-25 16:55:45,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-25 16:55:45,725 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:55:45,726 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:55:45,748 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2022-11-25 16:55:45,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:55:45,948 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:55:45,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:55:45,948 INFO L85 PathProgramCache]: Analyzing trace with hash -1396982830, now seen corresponding path program 1 times [2022-11-25 16:55:45,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 16:55:45,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1748877083] [2022-11-25 16:55:45,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:55:45,950 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:55:45,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 16:55:45,951 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 16:55:45,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2022-11-25 16:55:46,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:55:46,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 1011 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 16:55:46,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:55:46,999 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-25 16:55:47,000 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 16:55:47,175 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-25 16:55:47,175 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 16:55:47,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1748877083] [2022-11-25 16:55:47,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1748877083] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 16:55:47,176 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 16:55:47,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-11-25 16:55:47,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309385079] [2022-11-25 16:55:47,176 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 16:55:47,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 16:55:47,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 16:55:47,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 16:55:47,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-25 16:55:47,178 INFO L87 Difference]: Start difference. First operand 6599 states and 9026 transitions. Second operand has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-25 16:55:48,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:55:48,146 INFO L93 Difference]: Finished difference Result 13303 states and 18196 transitions. [2022-11-25 16:55:48,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 16:55:48,146 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 111 [2022-11-25 16:55:48,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:55:48,161 INFO L225 Difference]: With dead ends: 13303 [2022-11-25 16:55:48,161 INFO L226 Difference]: Without dead ends: 6716 [2022-11-25 16:55:48,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2022-11-25 16:55:48,171 INFO L413 NwaCegarLoop]: 545 mSDtfsCounter, 3 mSDsluCounter, 1624 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2169 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 16:55:48,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2169 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 16:55:48,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6716 states. [2022-11-25 16:55:48,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6716 to 6716. [2022-11-25 16:55:48,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6716 states, 4928 states have (on average 1.2487824675324675) internal successors, (6154), 4940 states have internal predecessors, (6154), 1369 states have call successors, (1369), 371 states have call predecessors, (1369), 418 states have return successors, (1620), 1432 states have call predecessors, (1620), 1365 states have call successors, (1620) [2022-11-25 16:55:48,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6716 states to 6716 states and 9143 transitions. [2022-11-25 16:55:48,906 INFO L78 Accepts]: Start accepts. Automaton has 6716 states and 9143 transitions. Word has length 111 [2022-11-25 16:55:48,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:55:48,906 INFO L495 AbstractCegarLoop]: Abstraction has 6716 states and 9143 transitions. [2022-11-25 16:55:48,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-25 16:55:48,906 INFO L276 IsEmpty]: Start isEmpty. Operand 6716 states and 9143 transitions. [2022-11-25 16:55:48,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-11-25 16:55:48,909 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:55:48,909 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:55:48,931 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2022-11-25 16:55:49,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:55:49,122 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:55:49,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:55:49,123 INFO L85 PathProgramCache]: Analyzing trace with hash -645931029, now seen corresponding path program 1 times [2022-11-25 16:55:49,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 16:55:49,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2073708032] [2022-11-25 16:55:49,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:55:49,124 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:55:49,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 16:55:49,125 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 16:55:49,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2022-11-25 16:55:50,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:55:50,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 1098 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-25 16:55:50,205 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:55:50,407 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-25 16:55:50,407 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 16:55:50,408 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 16:55:50,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2073708032] [2022-11-25 16:55:50,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2073708032] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:55:50,408 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:55:50,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 16:55:50,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636179599] [2022-11-25 16:55:50,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:55:50,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 16:55:50,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 16:55:50,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 16:55:50,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 16:55:50,411 INFO L87 Difference]: Start difference. First operand 6716 states and 9143 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-25 16:55:52,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:55:52,641 INFO L93 Difference]: Finished difference Result 16048 states and 22366 transitions. [2022-11-25 16:55:52,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 16:55:52,643 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) Word has length 124 [2022-11-25 16:55:52,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:55:52,662 INFO L225 Difference]: With dead ends: 16048 [2022-11-25 16:55:52,662 INFO L226 Difference]: Without dead ends: 9779 [2022-11-25 16:55:52,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 16:55:52,672 INFO L413 NwaCegarLoop]: 813 mSDtfsCounter, 177 mSDsluCounter, 2203 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 3016 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:55:52,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 3016 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-25 16:55:52,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9779 states. [2022-11-25 16:55:53,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9779 to 6541. [2022-11-25 16:55:53,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6541 states, 4831 states have (on average 1.2479817843096668) internal successors, (6029), 4835 states have internal predecessors, (6029), 1305 states have call successors, (1305), 357 states have call predecessors, (1305), 404 states have return successors, (1544), 1376 states have call predecessors, (1544), 1301 states have call successors, (1544) [2022-11-25 16:55:53,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6541 states to 6541 states and 8878 transitions. [2022-11-25 16:55:53,680 INFO L78 Accepts]: Start accepts. Automaton has 6541 states and 8878 transitions. Word has length 124 [2022-11-25 16:55:53,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:55:53,681 INFO L495 AbstractCegarLoop]: Abstraction has 6541 states and 8878 transitions. [2022-11-25 16:55:53,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-25 16:55:53,681 INFO L276 IsEmpty]: Start isEmpty. Operand 6541 states and 8878 transitions. [2022-11-25 16:55:53,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-11-25 16:55:53,683 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:55:53,683 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:55:53,702 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2022-11-25 16:55:53,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:55:53,884 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:55:53,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:55:53,885 INFO L85 PathProgramCache]: Analyzing trace with hash -756764579, now seen corresponding path program 1 times [2022-11-25 16:55:53,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 16:55:53,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1190379103] [2022-11-25 16:55:53,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:55:53,886 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:55:53,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 16:55:53,887 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 16:55:53,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2022-11-25 16:55:54,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:55:54,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-25 16:55:54,799 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:55:55,254 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-25 16:55:55,254 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 16:55:55,254 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 16:55:55,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1190379103] [2022-11-25 16:55:55,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1190379103] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:55:55,255 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:55:55,255 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-25 16:55:55,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748766716] [2022-11-25 16:55:55,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:55:55,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 16:55:55,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 16:55:55,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 16:55:55,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-25 16:55:55,258 INFO L87 Difference]: Start difference. First operand 6541 states and 8878 transitions. Second operand has 10 states, 10 states have (on average 8.7) internal successors, (87), 7 states have internal predecessors, (87), 2 states have call successors, (15), 2 states have call predecessors, (15), 5 states have return successors, (15), 5 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-25 16:55:58,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:55:58,035 INFO L93 Difference]: Finished difference Result 14187 states and 19791 transitions. [2022-11-25 16:55:58,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 16:55:58,036 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 7 states have internal predecessors, (87), 2 states have call successors, (15), 2 states have call predecessors, (15), 5 states have return successors, (15), 5 states have call predecessors, (15), 2 states have call successors, (15) Word has length 122 [2022-11-25 16:55:58,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:55:58,058 INFO L225 Difference]: With dead ends: 14187 [2022-11-25 16:55:58,058 INFO L226 Difference]: Without dead ends: 9443 [2022-11-25 16:55:58,068 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-25 16:55:58,068 INFO L413 NwaCegarLoop]: 861 mSDtfsCounter, 224 mSDsluCounter, 6567 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 7428 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-25 16:55:58,069 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 7428 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-25 16:55:58,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9443 states. [2022-11-25 16:55:59,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9443 to 6541. [2022-11-25 16:55:59,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6541 states, 4831 states have (on average 1.2463258124611882) internal successors, (6021), 4835 states have internal predecessors, (6021), 1305 states have call successors, (1305), 357 states have call predecessors, (1305), 404 states have return successors, (1544), 1376 states have call predecessors, (1544), 1301 states have call successors, (1544) [2022-11-25 16:55:59,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6541 states to 6541 states and 8870 transitions. [2022-11-25 16:55:59,134 INFO L78 Accepts]: Start accepts. Automaton has 6541 states and 8870 transitions. Word has length 122 [2022-11-25 16:55:59,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:55:59,134 INFO L495 AbstractCegarLoop]: Abstraction has 6541 states and 8870 transitions. [2022-11-25 16:55:59,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 7 states have internal predecessors, (87), 2 states have call successors, (15), 2 states have call predecessors, (15), 5 states have return successors, (15), 5 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-25 16:55:59,134 INFO L276 IsEmpty]: Start isEmpty. Operand 6541 states and 8870 transitions. [2022-11-25 16:55:59,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-11-25 16:55:59,136 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:55:59,136 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:55:59,163 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2022-11-25 16:55:59,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:55:59,358 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:55:59,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:55:59,359 INFO L85 PathProgramCache]: Analyzing trace with hash -61836419, now seen corresponding path program 1 times [2022-11-25 16:55:59,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 16:55:59,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [992360388] [2022-11-25 16:55:59,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:55:59,360 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:55:59,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 16:55:59,363 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 16:55:59,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2022-11-25 16:56:00,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:00,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 968 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-25 16:56:00,455 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:56:01,235 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-25 16:56:01,235 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 16:56:02,357 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-25 16:56:02,358 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 16:56:02,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [992360388] [2022-11-25 16:56:02,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [992360388] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 16:56:02,358 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 16:56:02,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 13 [2022-11-25 16:56:02,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054349640] [2022-11-25 16:56:02,358 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 16:56:02,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 16:56:02,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 16:56:02,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 16:56:02,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2022-11-25 16:56:02,360 INFO L87 Difference]: Start difference. First operand 6541 states and 8870 transitions. Second operand has 13 states, 13 states have (on average 7.538461538461538) internal successors, (98), 10 states have internal predecessors, (98), 3 states have call successors, (18), 2 states have call predecessors, (18), 6 states have return successors, (18), 6 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-25 16:56:06,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:56:06,373 INFO L93 Difference]: Finished difference Result 16164 states and 22559 transitions. [2022-11-25 16:56:06,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 16:56:06,374 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.538461538461538) internal successors, (98), 10 states have internal predecessors, (98), 3 states have call successors, (18), 2 states have call predecessors, (18), 6 states have return successors, (18), 6 states have call predecessors, (18), 3 states have call successors, (18) Word has length 122 [2022-11-25 16:56:06,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:56:06,399 INFO L225 Difference]: With dead ends: 16164 [2022-11-25 16:56:06,399 INFO L226 Difference]: Without dead ends: 10070 [2022-11-25 16:56:06,410 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2022-11-25 16:56:06,411 INFO L413 NwaCegarLoop]: 782 mSDtfsCounter, 237 mSDsluCounter, 7476 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 8258 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-25 16:56:06,411 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 8258 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-11-25 16:56:06,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10070 states. [2022-11-25 16:56:07,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10070 to 6529. [2022-11-25 16:56:07,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6529 states, 4819 states have (on average 1.2469391990039427) internal successors, (6009), 4835 states have internal predecessors, (6009), 1305 states have call successors, (1305), 357 states have call predecessors, (1305), 404 states have return successors, (1520), 1364 states have call predecessors, (1520), 1301 states have call successors, (1520) [2022-11-25 16:56:07,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6529 states to 6529 states and 8834 transitions. [2022-11-25 16:56:07,278 INFO L78 Accepts]: Start accepts. Automaton has 6529 states and 8834 transitions. Word has length 122 [2022-11-25 16:56:07,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:56:07,279 INFO L495 AbstractCegarLoop]: Abstraction has 6529 states and 8834 transitions. [2022-11-25 16:56:07,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.538461538461538) internal successors, (98), 10 states have internal predecessors, (98), 3 states have call successors, (18), 2 states have call predecessors, (18), 6 states have return successors, (18), 6 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-25 16:56:07,279 INFO L276 IsEmpty]: Start isEmpty. Operand 6529 states and 8834 transitions. [2022-11-25 16:56:07,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-11-25 16:56:07,281 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:56:07,281 INFO L195 NwaCegarLoop]: trace histogram [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 16:56:07,302 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2022-11-25 16:56:07,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:56:07,482 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:56:07,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:56:07,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1117139730, now seen corresponding path program 1 times [2022-11-25 16:56:07,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 16:56:07,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1089212087] [2022-11-25 16:56:07,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:56:07,483 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:56:07,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 16:56:07,484 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 16:56:07,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2022-11-25 16:56:16,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 16:56:16,811 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 16:56:24,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 16:56:24,974 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-25 16:56:24,974 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 16:56:24,975 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-25 16:56:25,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2022-11-25 16:56:25,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:56:25,202 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:56:25,205 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 16:56:25,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 04:56:25 BoogieIcfgContainer [2022-11-25 16:56:25,419 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 16:56:25,420 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 16:56:25,420 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 16:56:25,420 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 16:56:25,421 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:53:40" (3/4) ... [2022-11-25 16:56:25,423 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-25 16:56:25,578 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 16:56:25,578 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 16:56:25,578 INFO L158 Benchmark]: Toolchain (without parser) took 182449.64ms. Allocated memory was 67.1MB in the beginning and 2.1GB in the end (delta: 2.0GB). Free memory was 36.2MB in the beginning and 1.3GB in the end (delta: -1.3GB). Peak memory consumption was 710.4MB. Max. memory is 16.1GB. [2022-11-25 16:56:25,581 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 67.1MB. Free memory is still 44.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 16:56:25,583 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2618.34ms. Allocated memory was 67.1MB in the beginning and 130.0MB in the end (delta: 62.9MB). Free memory was 35.9MB in the beginning and 69.8MB in the end (delta: -33.9MB). Peak memory consumption was 69.6MB. Max. memory is 16.1GB. [2022-11-25 16:56:25,584 INFO L158 Benchmark]: Boogie Procedure Inliner took 154.29ms. Allocated memory is still 130.0MB. Free memory was 69.8MB in the beginning and 60.9MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-25 16:56:25,584 INFO L158 Benchmark]: Boogie Preprocessor took 116.86ms. Allocated memory is still 130.0MB. Free memory was 60.9MB in the beginning and 49.6MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-25 16:56:25,589 INFO L158 Benchmark]: RCFGBuilder took 14470.19ms. Allocated memory was 130.0MB in the beginning and 213.9MB in the end (delta: 83.9MB). Free memory was 49.6MB in the beginning and 95.3MB in the end (delta: -45.7MB). Peak memory consumption was 55.7MB. Max. memory is 16.1GB. [2022-11-25 16:56:25,589 INFO L158 Benchmark]: TraceAbstraction took 164926.01ms. Allocated memory was 213.9MB in the beginning and 2.1GB in the end (delta: 1.9GB). Free memory was 95.3MB in the beginning and 1.4GB in the end (delta: -1.3GB). Peak memory consumption was 597.8MB. Max. memory is 16.1GB. [2022-11-25 16:56:25,590 INFO L158 Benchmark]: Witness Printer took 157.89ms. Allocated memory is still 2.1GB. Free memory was 1.4GB in the beginning and 1.3GB in the end (delta: 23.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-25 16:56:25,594 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 67.1MB. Free memory is still 44.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2618.34ms. Allocated memory was 67.1MB in the beginning and 130.0MB in the end (delta: 62.9MB). Free memory was 35.9MB in the beginning and 69.8MB in the end (delta: -33.9MB). Peak memory consumption was 69.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 154.29ms. Allocated memory is still 130.0MB. Free memory was 69.8MB in the beginning and 60.9MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 116.86ms. Allocated memory is still 130.0MB. Free memory was 60.9MB in the beginning and 49.6MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * RCFGBuilder took 14470.19ms. Allocated memory was 130.0MB in the beginning and 213.9MB in the end (delta: 83.9MB). Free memory was 49.6MB in the beginning and 95.3MB in the end (delta: -45.7MB). Peak memory consumption was 55.7MB. Max. memory is 16.1GB. * TraceAbstraction took 164926.01ms. Allocated memory was 213.9MB in the beginning and 2.1GB in the end (delta: 1.9GB). Free memory was 95.3MB in the beginning and 1.4GB in the end (delta: -1.3GB). Peak memory consumption was 597.8MB. Max. memory is 16.1GB. * Witness Printer took 157.89ms. Allocated memory is still 2.1GB. Free memory was 1.4GB in the beginning and 1.3GB in the end (delta: 23.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 6754]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L5149] static struct lock_class_key __key___7 ; [L5150] static struct lock_class_key __key___8 ; [L5290-L5303] static char const __mod_author31[46] __attribute__((__used__, __unused__, __section__(".modinfo"), __aligned__(1))) = { (char const )'a', (char const )'u', (char const )'t', (char const )'h', (char const )'o', (char const )'r', (char const )'=', (char const )'S', (char const )'e', (char const )'b', (char const )'a', (char const )'s', (char const )'t', (char const )'i', (char const )'a', (char const )'n', (char const )' ', (char const )'H', (char const )'a', (char const )'a', (char const )'s', (char const )' ', (char const )'<', (char const )'h', (char const )'a', (char const )'a', (char const )'s', (char const )'@', (char const )'e', (char const )'m', (char const )'s', (char const )'-', (char const )'w', (char const )'u', (char const )'e', (char const )'n', (char const )'s', (char const )'c', (char const )'h', (char const )'e', (char const )'.', (char const )'c', (char const )'o', (char const )'m', (char const )'>', (char const )'\000'}; [L5304-L5323] static char const __mod_description32[70] __attribute__((__used__, __unused__, __section__(".modinfo"), __aligned__(1))) = { (char const )'d', (char const )'e', (char const )'s', (char const )'c', (char const )'r', (char const )'i', (char const )'p', (char const )'t', (char const )'i', (char const )'o', (char const )'n', (char const )'=', (char const )'C', (char const )'A', (char const )'N', (char const )' ', (char const )'d', (char const )'r', (char const )'i', (char const )'v', (char const )'e', (char const )'r', (char const )' ', (char const )'f', (char const )'o', (char const )'r', (char const )' ', (char const )'E', (char const )'M', (char const )'S', (char const )' ', (char const )'D', (char const )'r', (char const )'.', (char const )' ', (char const )'T', (char const )'h', (char const )'o', (char const )'m', (char const )'a', (char const )'s', (char const )' ', (char const )'W', (char const )'u', (char const )'e', (char const )'n', (char const )'s', (char const )'c', (char const )'h', (char const )'e', (char const )' ', (char const )'C', (char const )'A', (char const )'N', (char const )'/', (char const )'U', (char const )'S', (char const )'B', (char const )' ', (char const )'i', (char const )'n', (char const )'t', (char const )'e', (char const )'r', (char const )'f', (char const )'a', (char const )'c', (char const )'e', (char const )'s', (char const )'\000'}; [L5324-L5329] static char const __mod_license33[15] __attribute__((__used__, __unused__, __section__(".modinfo"), __aligned__(1))) = { (char const )'l', (char const )'i', (char const )'c', (char const )'e', (char const )'n', (char const )'s', (char const )'e', (char const )'=', (char const )'G', (char const )'P', (char const )'L', (char const )' ', (char const )'v', (char const )'2', (char const )'\000'}; [L5330-L5332] static struct usb_device_id ems_usb_table[1] = { {(__u16 )3, (__u16 )4822, (__u16 )1092, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}}; [L6247-L6287] static struct net_device_ops const ems_usb_netdev_ops = {(int (*)(struct net_device *dev ))0, (void (*)(struct net_device *dev ))0, & ems_usb_open, & ems_usb_close, & ems_usb_start_xmit, (u16 (*)(struct net_device *dev , struct sk_buff *skb ))0, (void (*)(struct net_device *dev , int flags ))0, (void (*)(struct net_device *dev ))0, (void (*)(struct net_device *dev ))0, (int (*)(struct net_device *dev , void *addr ))0, (int (*)(struct net_device *dev ))0, (int (*)(struct net_device *dev , struct ifreq *ifr , int cmd ))0, (int (*)(struct net_device *dev , struct ifmap *map ))0, (int (*)(struct net_device *dev , int new_mtu ))0, (int (*)(struct net_device *dev , struct neigh_parms * ))0, (void (*)(struct net_device *dev ))0, (struct rtnl_link_stats64 *(*)(struct net_device *dev , struct rtnl_link_stats64 *storage ))0, (struct net_device_stats *(*)(struct net_device *dev ))0, (void (*)(struct net_device *dev , struct vlan_group *grp ))0, (void (*)(struct net_device *dev , unsigned short vid ))0, (void (*)(struct net_device *dev , unsigned short vid ))0, (void (*)(struct net_device *dev ))0, (int (*)(struct net_device *dev , struct netpoll_info *info ))0, (void (*)(struct net_device *dev ))0, (int (*)(struct net_device *dev , int queue , u8 *mac ))0, (int (*)(struct net_device *dev , int queue , u16 vlan , u8 qos ))0, (int (*)(struct net_device *dev , int vf , int rate ))0, (int (*)(struct net_device *dev , int vf , struct ifla_vf_info *ivf ))0, (int (*)(struct net_device *dev , int vf , struct nlattr **port ))0, (int (*)(struct net_device *dev , int vf , struct sk_buff *skb ))0, (int (*)(struct net_device *dev , u8 tc ))0, (int (*)(struct net_device *dev ))0, (int (*)(struct net_device *dev ))0, (int (*)(struct net_device *dev , u16 xid , struct scatterlist *sgl , unsigned int sgc ))0, (int (*)(struct net_device *dev , u16 xid ))0, (int (*)(struct net_device *dev , u16 xid , struct scatterlist *sgl , unsigned int sgc ))0, (int (*)(struct net_device *dev , u64 *wwn , int type ))0, (int (*)(struct net_device *dev , struct sk_buff const *skb , u16 rxq_index , u32 flow_id ))0, (int (*)(struct net_device *dev , struct net_device *slave_dev ))0, (int (*)(struct net_device *dev , struct net_device *slave_dev ))0, (u32 (*)(struct net_device *dev , u32 features ))0, (int (*)(struct net_device *dev , u32 features ))0}; [L6288-L6292] static struct can_bittiming_const ems_usb_bittiming_const = {{(char )'e', (char )'m', (char )'s', (char )'_', (char )'u', (char )'s', (char )'b', (char )'\000', (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0}, (__u32 )1, (__u32 )16, (__u32 )1, (__u32 )8, (__u32 )4, (__u32 )1, (__u32 )64, (__u32 )1}; [L6543-L6561] static struct usb_driver ems_usb_driver = {"ems_usb", & ems_usb_probe, & ems_usb_disconnect, (int (*)(struct usb_interface *intf , unsigned int code , void *buf ))0, (int (*)(struct usb_interface *intf , pm_message_t message ))0, (int (*)(struct usb_interface *intf ))0, (int (*)(struct usb_interface *intf ))0, (int (*)(struct usb_interface *intf ))0, (int (*)(struct usb_interface *intf ))0, (struct usb_device_id const *)(ems_usb_table), {{{{{0U}, 0U, 0U, (void *)0, {(struct lock_class_key *)0, {(struct lock_class *)0, (struct lock_class *)0}, (char const *)0, 0, 0UL}}}}, {(struct list_head *)0, (struct list_head *)0}}, {{(char const *)0, (struct bus_type *)0, (struct module *)0, (char const *)0, (_Bool)0, (struct of_device_id const *)0, (int (*)(struct device *dev ))0, (int (*)(struct device *dev ))0, (void (*)(struct device *dev ))0, (int (*)(struct device *dev , pm_message_t state ))0, (int (*)(struct device *dev ))0, (struct attribute_group const **)0, (struct dev_pm_ops const *)0, (struct driver_private *)0}, 0}, 0U, 0U, 0U}; [L6614] int LDV_IN_INTERRUPT ; [L6615] static int res_ems_usb_open_10 ; [L6616] static int res_ems_usb_close_12 ; [L6617] static int res_ems_usb_probe_16 ; [L6767] int ldv_urb_state = 0; [L6768] int ldv_coherent_state = 0; VAL [__key___7={36:0}, __key___8={37:0}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=0, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6619] struct net_device *var_group1 ; [L6620] struct sk_buff *var_group2 ; [L6621] struct usb_interface *var_group3 ; [L6622] struct usb_device_id const *var_ems_usb_probe_16_p1 ; [L6623] int tmp___7 ; [L6624] int ldv_s_ems_usb_netdev_ops_net_device_ops ; [L6625] int ldv_s_ems_usb_driver_usb_driver ; [L6626] int tmp___8 ; [L6627] int tmp___9 ; [L6630] LDV_IN_INTERRUPT = 1 [L6631] FCALL ldv_initialize() [L6632] CALL, EXPR ems_usb_init() VAL [__key___7={36:0}, __key___8={37:0}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6565] int err ; [L6569] CALL, EXPR usb_register(& ems_usb_driver) [L5140] int tmp___7 ; [L5143] CALL, EXPR usb_register_driver(driver, & __this_module, "ems_usb") [L7025] return __VERIFIER_nondet_int(); [L5143] RET, EXPR usb_register_driver(driver, & __this_module, "ems_usb") [L5143] tmp___7 = usb_register_driver(driver, & __this_module, "ems_usb") [L5145] return (tmp___7); VAL [\result=0, __key___7={36:0}, __key___8={37:0}, __this_module={70:71}, driver={41:0}, driver={41:0}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, tmp___7=0] [L6569] RET, EXPR usb_register(& ems_usb_driver) [L6569] err = usb_register(& ems_usb_driver) [L6571] COND FALSE !(\read(err)) [L6578] return (0); VAL [\result=0, __key___7={36:0}, __key___8={37:0}, __this_module={70:71}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, err=0, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6632] RET, EXPR ems_usb_init() VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_init()=0, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6632] tmp___7 = ems_usb_init() [L6634] COND FALSE !(\read(tmp___7)) [L6638] ldv_s_ems_usb_netdev_ops_net_device_ops = 0 [L6639] ldv_s_ems_usb_driver_usb_driver = 0 VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_s_ems_usb_driver_usb_driver=0, ldv_s_ems_usb_netdev_ops_net_device_ops=0, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, tmp___7=0] [L6641] COND TRUE 1 VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_s_ems_usb_driver_usb_driver=0, ldv_s_ems_usb_netdev_ops_net_device_ops=0, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, tmp___7=0] [L6644] tmp___9 = __VERIFIER_nondet_int() [L6646] COND TRUE \read(tmp___9) VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_s_ems_usb_driver_usb_driver=0, ldv_s_ems_usb_netdev_ops_net_device_ops=0, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, tmp___7=0, tmp___9=-2147483648] [L6655] tmp___8 = __VERIFIER_nondet_int() [L6657] COND FALSE !(tmp___8 == 0) VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_s_ems_usb_driver_usb_driver=0, ldv_s_ems_usb_netdev_ops_net_device_ops=0, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, tmp___7=0, tmp___8=2, tmp___9=-2147483648] [L6660] COND FALSE !(tmp___8 == 1) VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_s_ems_usb_driver_usb_driver=0, ldv_s_ems_usb_netdev_ops_net_device_ops=0, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, tmp___7=0, tmp___8=2, tmp___9=-2147483648] [L6663] COND TRUE tmp___8 == 2 VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_s_ems_usb_driver_usb_driver=0, ldv_s_ems_usb_netdev_ops_net_device_ops=0, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, tmp___7=0, tmp___8=2, tmp___9=-2147483648] [L6704] CALL ems_usb_start_xmit(var_group2, var_group1) [L6048] struct ems_usb *dev ; [L6049] void *tmp___7 ; [L6050] struct ems_tx_urb_context *context ; [L6051] struct net_device_stats *stats ; [L6052] struct can_frame *cf ; [L6053] struct ems_cpc_msg *msg ; [L6054] struct urb *urb ; [L6055] u8 *buf ; [L6056] int i ; [L6057] int err ; [L6058] size_t size ; [L6059] int tmp___8 ; [L6060] void *tmp___9 ; [L6061] unsigned int tmp___10 ; [L6062] int tmp___11 ; [L6063] long tmp___12 ; VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, netdev={0:-2952}, netdev={0:-2952}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, skb={0:0}, skb={0:0}] [L6066] CALL, EXPR netdev_priv((struct net_device const *)netdev) VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, dev={0:-2952}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L4976] return ((void *)((char *)dev + ((sizeof(struct net_device ) + 31UL) & 0x0fffffffffffffe0UL))); VAL [\result={0:-520}, __key___7={36:0}, __key___8={37:0}, __this_module={70:71}, dev={0:-2952}, dev={0:-2952}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6066] RET, EXPR netdev_priv((struct net_device const *)netdev) VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, netdev={0:-2952}, netdev={0:-2952}, netdev_priv((struct net_device const *)netdev)={0:-520}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, skb={0:0}, skb={0:0}] [L6066] tmp___7 = netdev_priv((struct net_device const *)netdev) [L6067] dev = (struct ems_usb *)tmp___7 [L6068] context = (struct ems_tx_urb_context *)((void *)0) [L6069] stats = & netdev->stats [L6070] EXPR skb->data [L6070] cf = (struct can_frame *)skb->data [L6071] size = 15UL + sizeof(struct cpc_can_msg ) [L6072] CALL, EXPR can_dropped_invalid_skb(netdev, skb) [L5252] struct can_frame const *cf ; [L5253] int tmp___7 ; [L5254] long tmp___8 ; [L5256] EXPR skb->data [L5256] cf = (struct can_frame const *)((struct can_frame *)skb->data) [L5257] EXPR skb->len VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, cf={0:0}, dev={0:-2952}, dev={0:-2952}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, skb={0:0}, skb={0:0}, skb->len=13] [L5257] COND FALSE !((unsigned long )skb->len != sizeof(*cf)) [L5260] EXPR cf->can_dlc VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, cf={0:0}, cf->can_dlc=0, dev={0:-2952}, dev={0:-2952}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, skb={0:0}, skb={0:0}] [L5260] COND FALSE !((int const )cf->can_dlc > 8) [L5263] tmp___7 = 0 VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, cf={0:0}, dev={0:-2952}, dev={0:-2952}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, skb={0:0}, skb={0:0}, tmp___7=0] [L5266] tmp___8 = __builtin_expect((long )tmp___7, 0L) VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, cf={0:0}, dev={0:-2952}, dev={0:-2952}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, skb={0:0}, skb={0:0}, tmp___7=0, tmp___8=0] [L5268] COND FALSE !(\read(tmp___8)) [L5276] return (0); VAL [\result=0, __key___7={36:0}, __key___8={37:0}, __this_module={70:71}, cf={0:0}, dev={0:-2952}, dev={0:-2952}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, skb={0:0}, skb={0:0}, tmp___7=0, tmp___8=0] [L6072] RET, EXPR can_dropped_invalid_skb(netdev, skb) [L6072] tmp___8 = can_dropped_invalid_skb(netdev, skb) [L6074] COND FALSE !(\read(tmp___8)) VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, cf={0:0}, context={0:0}, dev={0:-520}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, netdev={0:-2952}, netdev={0:-2952}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, skb={0:0}, skb={0:0}, stats={0:-2764}, tmp___7={0:-520}, tmp___8=0] [L6079] CALL, EXPR usb_alloc_urb(0, 32U) VAL [\old(iso_packets)=0, \old(ldv_urb_state)=0, \old(mem_flags)=32, __key___7={36:0}, __key___8={37:0}, __this_module={70:71}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6830] void *arbitrary_memory ; [L6831] void *tmp___7 ; VAL [\old(iso_packets)=0, \old(ldv_urb_state)=0, \old(mem_flags)=32, __key___7={36:0}, __key___8={37:0}, __this_module={70:71}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, iso_packets=0, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, mem_flags=32, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6834] COND TRUE 1 VAL [\old(iso_packets)=0, \old(ldv_urb_state)=0, \old(mem_flags)=32, __key___7={36:0}, __key___8={37:0}, __this_module={70:71}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, iso_packets=0, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, mem_flags=32, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6837] CALL, EXPR ldv_undefined_pointer() VAL [\old(ldv_urb_state)=0, __key___7={36:0}, __key___8={37:0}, __this_module={70:71}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6982] CALL, EXPR ldv_malloc(0UL) VAL [\old(ldv_urb_state)=0, \old(size)=0, __key___7={36:0}, __key___8={37:0}, __this_module={70:71}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6911] COND FALSE !(__VERIFIER_nondet_bool()) [L6912] return malloc(size); [L6982] RET, EXPR ldv_malloc(0UL) VAL [\old(ldv_urb_state)=0, __key___7={36:0}, __key___8={37:0}, __this_module={70:71}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_malloc(0UL)={93:0}, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6982] return ldv_malloc(0UL); [L6837] RET, EXPR ldv_undefined_pointer() VAL [\old(iso_packets)=0, \old(ldv_urb_state)=0, \old(mem_flags)=32, __key___7={36:0}, __key___8={37:0}, __this_module={70:71}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, iso_packets=0, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_undefined_pointer()={93:0}, ldv_urb_state=0, mem_flags=32, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6837] tmp___7 = ldv_undefined_pointer() [L6838] arbitrary_memory = tmp___7 VAL [\old(iso_packets)=0, \old(ldv_urb_state)=0, \old(mem_flags)=32, __key___7={36:0}, __key___8={37:0}, __this_module={70:71}, arbitrary_memory={93:0}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, iso_packets=0, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, mem_flags=32, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, tmp___7={93:0}] [L6840] COND FALSE !(! arbitrary_memory) [L6844] ldv_urb_state = ldv_urb_state + 1 [L6845] return ((struct urb *)arbitrary_memory); VAL [\old(iso_packets)=0, \old(ldv_urb_state)=0, \old(mem_flags)=32, \result={93:0}, __key___7={36:0}, __key___8={37:0}, __this_module={70:71}, arbitrary_memory={93:0}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, iso_packets=0, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=1, mem_flags=32, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, tmp___7={93:0}] [L6079] RET, EXPR usb_alloc_urb(0, 32U) VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, cf={0:0}, context={0:0}, dev={0:-520}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=1, netdev={0:-2952}, netdev={0:-2952}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, skb={0:0}, skb={0:0}, stats={0:-2764}, tmp___7={0:-520}, tmp___8=0, usb_alloc_urb(0, 32U)={93:0}] [L6079] urb = usb_alloc_urb(0, 32U) [L6081] COND FALSE !(! urb) [L6089] EXPR dev->udev VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, cf={0:0}, context={0:0}, dev={0:-520}, dev->udev={0:0}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=1, netdev={0:-2952}, netdev={0:-2952}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, skb={0:0}, skb={0:0}, stats={0:-2764}, tmp___7={0:-520}, tmp___8=0, urb={93:0}] [L6089] CALL, EXPR usb_alloc_coherent(dev->udev, size, 32U, & urb->transfer_dma) VAL [\old(ldv_coherent_state)=0, \old(mem_flags)=32, \old(size)=28, __key___7={36:0}, __key___8={37:0}, __this_module={70:71}, dev={0:0}, dma={93:104}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=1, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6773] void *arbitrary_memory ; [L6774] void *tmp___7 ; VAL [\old(ldv_coherent_state)=0, \old(mem_flags)=32, \old(size)=28, __key___7={36:0}, __key___8={37:0}, __this_module={70:71}, dev={0:0}, dev={0:0}, dma={93:104}, dma={93:104}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=1, mem_flags=32, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28] [L6777] COND TRUE 1 VAL [\old(ldv_coherent_state)=0, \old(mem_flags)=32, \old(size)=28, __key___7={36:0}, __key___8={37:0}, __this_module={70:71}, dev={0:0}, dev={0:0}, dma={93:104}, dma={93:104}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=1, mem_flags=32, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28] [L6780] CALL, EXPR ldv_undefined_pointer() VAL [\old(ldv_coherent_state)=0, __key___7={36:0}, __key___8={37:0}, __this_module={70:71}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=1, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6982] CALL, EXPR ldv_malloc(0UL) VAL [\old(ldv_coherent_state)=0, \old(size)=0, __key___7={36:0}, __key___8={37:0}, __this_module={70:71}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=1, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6911] COND FALSE !(__VERIFIER_nondet_bool()) [L6912] return malloc(size); [L6982] RET, EXPR ldv_malloc(0UL) VAL [\old(ldv_coherent_state)=0, __key___7={36:0}, __key___8={37:0}, __this_module={70:71}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_malloc(0UL)={51:0}, ldv_urb_state=1, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6982] return ldv_malloc(0UL); [L6780] RET, EXPR ldv_undefined_pointer() VAL [\old(ldv_coherent_state)=0, \old(mem_flags)=32, \old(size)=28, __key___7={36:0}, __key___8={37:0}, __this_module={70:71}, dev={0:0}, dev={0:0}, dma={93:104}, dma={93:104}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_undefined_pointer()={51:0}, ldv_urb_state=1, mem_flags=32, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28] [L6780] tmp___7 = ldv_undefined_pointer() [L6781] arbitrary_memory = tmp___7 VAL [\old(ldv_coherent_state)=0, \old(mem_flags)=32, \old(size)=28, __key___7={36:0}, __key___8={37:0}, __this_module={70:71}, arbitrary_memory={51:0}, dev={0:0}, dev={0:0}, dma={93:104}, dma={93:104}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=1, mem_flags=32, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, tmp___7={51:0}] [L6783] COND FALSE !(! arbitrary_memory) [L6787] ldv_coherent_state = ldv_coherent_state + 1 [L6788] return (arbitrary_memory); VAL [\old(ldv_coherent_state)=0, \old(mem_flags)=32, \old(size)=28, \result={51:0}, __key___7={36:0}, __key___8={37:0}, __this_module={70:71}, arbitrary_memory={51:0}, dev={0:0}, dev={0:0}, dma={93:104}, dma={93:104}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, mem_flags=32, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, tmp___7={51:0}] [L6089] RET, EXPR usb_alloc_coherent(dev->udev, size, 32U, & urb->transfer_dma) VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, cf={0:0}, context={0:0}, dev={0:-520}, dev->udev={0:0}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, netdev={0:-2952}, netdev={0:-2952}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, skb={0:0}, skb={0:0}, stats={0:-2764}, tmp___7={0:-520}, tmp___8=0, urb={93:0}, usb_alloc_coherent(dev->udev, size, 32U, & urb->transfer_dma)={51:0}] [L6089] tmp___9 = usb_alloc_coherent(dev->udev, size, 32U, & urb->transfer_dma) [L6090] buf = (u8 *)tmp___9 VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, buf={51:0}, cf={0:0}, context={0:0}, dev={0:-520}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, netdev={0:-2952}, netdev={0:-2952}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, skb={0:0}, skb={0:0}, stats={0:-2764}, tmp___7={0:-520}, tmp___8=0, tmp___9={51:0}, urb={93:0}] [L6092] COND FALSE !(! buf) [L6100] msg = (struct ems_cpc_msg *)(buf + 4) [L6101] EXPR cf->can_id [L6101] msg->msg.can_msg.id = cf->can_id & 536870911U [L6102] EXPR cf->can_dlc [L6102] msg->msg.can_msg.length = cf->can_dlc [L6103] EXPR cf->can_id VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, buf={51:0}, cf={0:0}, cf->can_id=-1073741824, context={0:0}, dev={0:-520}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, msg={51:4}, netdev={0:-2952}, netdev={0:-2952}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, skb={0:0}, skb={0:0}, stats={0:-2764}, tmp___7={0:-520}, tmp___8=0, tmp___9={51:0}, urb={93:0}] [L6103] COND TRUE cf->can_id & 1073741824U [L6104] EXPR cf->can_id VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, buf={51:0}, cf={0:0}, cf->can_id=-1073741824, context={0:0}, dev={0:-520}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, msg={51:4}, netdev={0:-2952}, netdev={0:-2952}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, skb={0:0}, skb={0:0}, stats={0:-2764}, tmp___7={0:-520}, tmp___8=0, tmp___9={51:0}, urb={93:0}] [L6104] COND TRUE cf->can_id & 2147483648U [L6105] msg->type = (u8 )16 VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, buf={51:0}, cf={0:0}, context={0:0}, dev={0:-520}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, msg={51:4}, netdev={0:-2952}, netdev={0:-2952}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, skb={0:0}, skb={0:0}, stats={0:-2764}, tmp___7={0:-520}, tmp___8=0, tmp___9={51:0}, urb={93:0}] [L6109] msg->length = (u8 )5 VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, buf={51:0}, cf={0:0}, context={0:0}, dev={0:-520}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, msg={51:4}, netdev={0:-2952}, netdev={0:-2952}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, skb={0:0}, skb={0:0}, stats={0:-2764}, tmp___7={0:-520}, tmp___8=0, tmp___9={51:0}, urb={93:0}] [L6132] EXPR msg->msg.can_msg.id [L6132] msg->msg.can_msg.id = msg->msg.can_msg.id [L6133] i = 0 VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, buf={51:0}, cf={0:0}, context={0:0}, dev={0:-520}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, i=0, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, msg={51:4}, netdev={0:-2952}, netdev={0:-2952}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, skb={0:0}, skb={0:0}, stats={0:-2764}, tmp___7={0:-520}, tmp___8=0, tmp___9={51:0}, urb={93:0}] [L6135] COND TRUE 1 VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, buf={51:0}, cf={0:0}, context={0:0}, dev={0:-520}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, i=0, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, msg={51:4}, netdev={0:-2952}, netdev={0:-2952}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, skb={0:0}, skb={0:0}, stats={0:-2764}, tmp___7={0:-520}, tmp___8=0, tmp___9={51:0}, urb={93:0}] [L6137] COND TRUE i < 10 VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, buf={51:0}, cf={0:0}, context={0:0}, dev={0:-520}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, i=0, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, msg={51:4}, netdev={0:-2952}, netdev={0:-2952}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, skb={0:0}, skb={0:0}, stats={0:-2764}, tmp___7={0:-520}, tmp___8=0, tmp___9={51:0}, urb={93:0}] [L6141] EXPR dev->tx_contexts[i].echo_index VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, buf={51:0}, cf={0:0}, context={0:0}, dev={0:-520}, dev->tx_contexts[i].echo_index=10, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, i=0, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, msg={51:4}, netdev={0:-2952}, netdev={0:-2952}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, skb={0:0}, skb={0:0}, stats={0:-2764}, tmp___7={0:-520}, tmp___8=0, tmp___9={51:0}, urb={93:0}] [L6141] COND TRUE dev->tx_contexts[i].echo_index == 10U [L6142] context = & dev->tx_contexts[i] VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, buf={51:0}, cf={0:0}, context={0:0}, dev={0:-520}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, i=0, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, msg={51:4}, netdev={0:-2952}, netdev={0:-2952}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, skb={0:0}, skb={0:0}, stats={0:-2764}, tmp___7={0:-520}, tmp___8=0, tmp___9={51:0}, urb={93:0}] [L6151] COND TRUE ! context VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, buf={51:0}, cf={0:0}, context={0:0}, dev={0:-520}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, i=0, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, msg={51:4}, netdev={0:-2952}, netdev={0:-2952}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, skb={0:0}, skb={0:0}, stats={0:-2764}, tmp___7={0:-520}, tmp___8=0, tmp___9={51:0}, urb={93:0}] [L6153] FCALL usb_unanchor_urb(urb) VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, buf={51:0}, cf={0:0}, context={0:0}, dev={0:-520}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, i=0, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, msg={51:4}, netdev={0:-2952}, netdev={0:-2952}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, skb={0:0}, skb={0:0}, stats={0:-2764}, tmp___7={0:-520}, tmp___8=0, tmp___9={51:0}, urb={93:0}] [L6154] EXPR dev->udev [L6154] EXPR urb->transfer_dma VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, buf={51:0}, cf={0:0}, context={0:0}, dev={0:-520}, dev->udev={0:0}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, i=0, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, msg={51:4}, netdev={0:-2952}, netdev={0:-2952}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, skb={0:0}, skb={0:0}, stats={0:-2764}, tmp___7={0:-520}, tmp___8=0, tmp___9={51:0}, urb={93:0}, urb->transfer_dma=8388608] [L6154] CALL usb_free_coherent(dev->udev, size, (void *)buf, urb->transfer_dma) VAL [\old(dma)=8388608, \old(ldv_coherent_state)=1, \old(size)=28, __key___7={36:0}, __key___8={37:0}, __this_module={70:71}, addr={51:0}, dev={0:0}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6802] COND TRUE 1 VAL [\old(dma)=8388608, \old(ldv_coherent_state)=1, \old(size)=28, __key___7={36:0}, __key___8={37:0}, __this_module={70:71}, addr={51:0}, addr={51:0}, dev={0:0}, dev={0:0}, dma=8388608, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28] [L6804] COND FALSE !(! ((unsigned long )addr != (unsigned long )((void *)0))) VAL [\old(dma)=8388608, \old(ldv_coherent_state)=1, \old(size)=28, __key___7={36:0}, __key___8={37:0}, __this_module={70:71}, addr={51:0}, addr={51:0}, dev={0:0}, dev={0:0}, dma=8388608, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28] [L6810] COND TRUE \read(*addr) VAL [\old(dma)=8388608, \old(ldv_coherent_state)=1, \old(size)=28, __key___7={36:0}, __key___8={37:0}, __this_module={70:71}, addr={51:0}, addr={51:0}, dev={0:0}, dev={0:0}, dma=8388608, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28] [L6811] COND TRUE ldv_coherent_state >= 1 VAL [\old(dma)=8388608, \old(ldv_coherent_state)=1, \old(size)=28, __key___7={36:0}, __key___8={37:0}, __this_module={70:71}, addr={51:0}, addr={51:0}, dev={0:0}, dev={0:0}, dma=8388608, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28] [L6817] ldv_coherent_state = ldv_coherent_state - 1 VAL [\old(dma)=8388608, \old(ldv_coherent_state)=1, \old(size)=28, __key___7={36:0}, __key___8={37:0}, __this_module={70:71}, addr={51:0}, addr={51:0}, dev={0:0}, dev={0:0}, dma=8388608, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=1, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28] [L6154] RET usb_free_coherent(dev->udev, size, (void *)buf, urb->transfer_dma) VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, buf={51:0}, cf={0:0}, context={0:0}, dev={0:-520}, dev->udev={0:0}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, i=0, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=1, msg={51:4}, netdev={0:-2952}, netdev={0:-2952}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, skb={0:0}, skb={0:0}, stats={0:-2764}, tmp___7={0:-520}, tmp___8=0, tmp___9={51:0}, urb={93:0}, urb->transfer_dma=8388608] [L6155] netdev->dev.parent [L6157] return ((netdev_tx_t )16); VAL [\result=16, __key___7={36:0}, __key___8={37:0}, __this_module={70:71}, buf={51:0}, cf={0:0}, context={0:0}, dev={0:-520}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, i=0, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=1, msg={51:4}, netdev={0:-2952}, netdev={0:-2952}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, skb={0:0}, skb={0:0}, stats={0:-2764}, tmp___7={0:-520}, tmp___8=0, tmp___9={51:0}, urb={93:0}] [L6704] RET ems_usb_start_xmit(var_group2, var_group1) [L6641] COND TRUE 1 VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_s_ems_usb_driver_usb_driver=0, ldv_s_ems_usb_netdev_ops_net_device_ops=0, ldv_urb_state=1, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, tmp___7=0, tmp___8=2, tmp___9=-2147483648, var_group1={0:-2952}, var_group2={0:0}] [L6644] tmp___9 = __VERIFIER_nondet_int() [L6646] COND FALSE !(\read(tmp___9)) VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_s_ems_usb_driver_usb_driver=0, ldv_s_ems_usb_netdev_ops_net_device_ops=0, ldv_urb_state=1, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, tmp___7=0, tmp___8=2, tmp___9=0, var_group1={0:-2952}, var_group2={0:0}] [L6648] COND FALSE !(! (ldv_s_ems_usb_netdev_ops_net_device_ops == 0)) VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_s_ems_usb_driver_usb_driver=0, ldv_s_ems_usb_netdev_ops_net_device_ops=0, ldv_urb_state=1, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, tmp___7=0, tmp___8=2, tmp___9=0, var_group1={0:-2952}, var_group2={0:0}] [L6650] COND FALSE !(! (ldv_s_ems_usb_driver_usb_driver == 0)) VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_s_ems_usb_driver_usb_driver=0, ldv_s_ems_usb_netdev_ops_net_device_ops=0, ldv_urb_state=1, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, tmp___7=0, tmp___8=2, tmp___9=0, var_group1={0:-2952}, var_group2={0:0}] [L6742] CALL ems_usb_exit() VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=1, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6587] FCALL usb_deregister(& ems_usb_driver) [L6742] RET ems_usb_exit() VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_s_ems_usb_driver_usb_driver=0, ldv_s_ems_usb_netdev_ops_net_device_ops=0, ldv_urb_state=1, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, tmp___7=0, tmp___8=2, tmp___9=0, var_group1={0:-2952}, var_group2={0:0}] [L6746] CALL ldv_check_final_state() [L6889] COND FALSE !(ldv_urb_state == 0) VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=1, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6892] CALL ldv_blast_assert() VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=1, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6754] reach_error() VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=1, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 36 procedures, 432 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 164.6s, OverallIterations: 30, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 87.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 13 mSolverCounterUnknown, 8206 SdHoareTripleChecker+Valid, 68.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7139 mSDsluCounter, 103851 SdHoareTripleChecker+Invalid, 65.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 83157 mSDsCounter, 999 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4866 IncrementalHoareTripleChecker+Invalid, 5878 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 999 mSolverCounterUnsat, 20694 mSDtfsCounter, 4866 mSolverCounterSat, 0.4s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3020 GetRequests, 2867 SyntacticMatches, 0 SemanticMatches, 153 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 7.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6716occurred in iteration=26, InterpolantAutomatonStates: 189, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 16.3s AutomataMinimizationTime, 29 MinimizatonAttempts, 29368 StatesRemovedByMinimization, 23 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.4s SsaConstructionTime, 21.1s SatisfiabilityAnalysisTime, 13.7s InterpolantComputationTime, 2621 NumberOfCodeBlocks, 2599 NumberOfCodeBlocksAsserted, 30 NumberOfCheckSat, 2992 ConstructedInterpolants, 0 QuantifiedInterpolants, 4364 SizeOfPredicates, 47 NumberOfNonLiveVariables, 24170 ConjunctsInSsa, 201 ConjunctsInUnsatCore, 34 InterpolantComputations, 25 PerfectInterpolantSequences, 318/352 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-25 16:56:25,683 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c5e89ac-bcc4-40cb-b64e-a1817666d0a2/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE