./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-wan-farsync.ko.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4984bdc-936d-439f-8fc2-df06cb6e81ca/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4984bdc-936d-439f-8fc2-df06cb6e81ca/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4984bdc-936d-439f-8fc2-df06cb6e81ca/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4984bdc-936d-439f-8fc2-df06cb6e81ca/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-wan-farsync.ko.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4984bdc-936d-439f-8fc2-df06cb6e81ca/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4984bdc-936d-439f-8fc2-df06cb6e81ca/bin/utaipan-ByfvJB40ur --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f51fd7a7e803b337407ebecb084bc416ae9c8b7a3d33ff72a0e0702d21471e83 --- 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 23:22:15,535 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:22:15,537 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:22:15,558 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:22:15,558 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:22:15,559 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:22:15,560 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:22:15,562 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:22:15,564 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:22:15,565 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:22:15,566 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:22:15,567 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:22:15,567 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:22:15,568 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:22:15,569 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:22:15,570 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:22:15,571 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:22:15,572 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:22:15,574 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:22:15,575 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:22:15,577 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:22:15,583 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:22:15,586 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:22:15,590 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:22:15,593 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:22:15,600 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:22:15,600 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:22:15,601 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:22:15,602 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:22:15,603 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:22:15,603 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:22:15,604 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:22:15,604 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:22:15,607 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:22:15,608 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:22:15,609 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:22:15,610 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:22:15,611 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:22:15,612 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:22:15,612 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:22:15,614 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:22:15,615 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4984bdc-936d-439f-8fc2-df06cb6e81ca/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-25 23:22:15,648 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:22:15,648 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:22:15,649 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:22:15,649 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:22:15,649 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:22:15,649 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:22:15,650 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:22:15,650 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:22:15,650 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:22:15,650 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 23:22:15,650 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:22:15,651 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:22:15,651 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 23:22:15,651 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 23:22:15,651 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:22:15,651 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 23:22:15,651 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 23:22:15,652 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 23:22:15,652 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:22:15,652 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 23:22:15,653 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:22:15,653 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:22:15,653 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:22:15,653 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:22:15,653 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:22:15,653 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:22:15,654 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:22:15,659 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:22:15,659 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:22:15,660 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:22:15,660 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:22:15,660 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 23:22:15,660 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:22:15,660 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:22:15,661 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 23:22:15,661 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 23:22:15,662 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:22:15,662 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:22:15,662 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_c4984bdc-936d-439f-8fc2-df06cb6e81ca/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4984bdc-936d-439f-8fc2-df06cb6e81ca/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f51fd7a7e803b337407ebecb084bc416ae9c8b7a3d33ff72a0e0702d21471e83 [2022-11-25 23:22:15,936 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:22:15,966 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:22:15,969 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:22:15,970 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:22:15,971 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:22:15,972 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4984bdc-936d-439f-8fc2-df06cb6e81ca/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-wan-farsync.ko.cil.out.i [2022-11-25 23:22:19,027 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:22:19,544 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:22:19,545 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4984bdc-936d-439f-8fc2-df06cb6e81ca/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-wan-farsync.ko.cil.out.i [2022-11-25 23:22:19,593 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4984bdc-936d-439f-8fc2-df06cb6e81ca/bin/utaipan-ByfvJB40ur/data/99d536e98/6d052a1125b34a63a777a74afd21420f/FLAG4f8941421 [2022-11-25 23:22:19,612 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4984bdc-936d-439f-8fc2-df06cb6e81ca/bin/utaipan-ByfvJB40ur/data/99d536e98/6d052a1125b34a63a777a74afd21420f [2022-11-25 23:22:19,617 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:22:19,619 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:22:19,624 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:22:19,624 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:22:19,629 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:22:19,630 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:22:19" (1/1) ... [2022-11-25 23:22:19,631 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f0fc9b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:22:19, skipping insertion in model container [2022-11-25 23:22:19,631 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:22:19" (1/1) ... [2022-11-25 23:22:19,638 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:22:19,790 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:22:20,433 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-11-25 23:22:20,466 WARN L623 FunctionHandler]: Unknown extern function ioremap_nocache [2022-11-25 23:22:20,603 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_byte [2022-11-25 23:22:20,609 WARN L623 FunctionHandler]: Unknown extern function pci_bus_write_config_byte [2022-11-25 23:22:20,649 WARN L623 FunctionHandler]: Unknown extern function __kmalloc [2022-11-25 23:22:20,714 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-11-25 23:22:20,724 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 23:22:20,725 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-11-25 23:22:20,747 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-11-25 23:22:20,752 WARN L623 FunctionHandler]: Unknown extern function dev_set_drvdata [2022-11-25 23:22:20,771 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 23:22:20,772 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-11-25 23:22:20,775 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-11-25 23:22:20,777 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_fmt [2022-11-25 23:22:20,785 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 23:22:20,786 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-11-25 23:22:20,825 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-11-25 23:22:20,841 WARN L623 FunctionHandler]: Unknown extern function __tasklet_schedule [2022-11-25 23:22:20,859 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-11-25 23:22:20,864 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-11-25 23:22:20,875 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 23:22:20,875 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:22:20,971 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:22:20,974 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:22:20,984 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:22:21,031 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-11-25 23:22:21,051 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-25 23:22:21,056 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-11-25 23:22:21,078 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:22:21,079 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout_uninterruptible [2022-11-25 23:22:21,079 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:22:21,086 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:22:21,112 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:22:21,120 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:22:21,135 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-25 23:22:21,136 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-11-25 23:22:21,142 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-11-25 23:22:21,145 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-25 23:22:21,174 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:22:21,177 WARN L623 FunctionHandler]: Unknown extern function dev_alloc_skb [2022-11-25 23:22:21,182 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-25 23:22:21,187 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-11-25 23:22:21,202 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:22:21,203 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:22:21,210 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 23:22:21,217 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:22:21,234 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:22:21,239 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:22:21,243 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:22:21,245 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:22:21,247 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:22:21,248 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:22:21,323 WARN L623 FunctionHandler]: Unknown extern function capable [2022-11-25 23:22:21,326 WARN L623 FunctionHandler]: Unknown extern function memdup_user [2022-11-25 23:22:21,327 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:22:21,328 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:22:21,330 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:22:21,336 WARN L623 FunctionHandler]: Unknown extern function hdlc_ioctl [2022-11-25 23:22:21,337 WARN L623 FunctionHandler]: Unknown extern function hdlc_ioctl [2022-11-25 23:22:21,338 WARN L623 FunctionHandler]: Unknown extern function hdlc_ioctl [2022-11-25 23:22:21,343 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-11-25 23:22:21,344 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-25 23:22:21,352 WARN L623 FunctionHandler]: Unknown extern function hdlc_open [2022-11-25 23:22:21,357 WARN L623 FunctionHandler]: Unknown extern function hdlc_close [2022-11-25 23:22:21,373 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 23:22:21,377 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 23:22:21,378 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:22:21,379 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 23:22:21,380 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:22:21,385 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-11-25 23:22:21,385 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:22:21,386 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-25 23:22:21,387 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:22:21,394 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:22:21,395 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:22:21,396 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:22:21,396 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-11-25 23:22:21,396 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:22:21,397 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:22:21,397 WARN L623 FunctionHandler]: Unknown extern function pci_request_regions [2022-11-25 23:22:21,398 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:22:21,398 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-25 23:22:21,399 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:22:21,400 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:22:21,400 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-11-25 23:22:21,401 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-25 23:22:21,401 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:22:21,401 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:22:21,402 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-11-25 23:22:21,402 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-25 23:22:21,402 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:22:21,403 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:22:21,404 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-11-25 23:22:21,404 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-25 23:22:21,404 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-11-25 23:22:21,405 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-11-25 23:22:21,405 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:22:21,407 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 23:22:21,407 WARN L623 FunctionHandler]: Unknown extern function alloc_hdlcdev [2022-11-25 23:22:21,408 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-25 23:22:21,409 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:22:21,409 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-11-25 23:22:21,409 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-11-25 23:22:21,410 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-25 23:22:21,410 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-11-25 23:22:21,410 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-11-25 23:22:21,411 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:22:21,414 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:22:21,414 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-11-25 23:22:21,415 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-25 23:22:21,415 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-11-25 23:22:21,415 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-11-25 23:22:21,416 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:22:21,416 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:22:21,417 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-11-25 23:22:21,417 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-25 23:22:21,417 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-11-25 23:22:21,418 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-11-25 23:22:21,418 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:22:21,423 WARN L623 FunctionHandler]: Unknown extern function unregister_hdlc_device [2022-11-25 23:22:21,423 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-11-25 23:22:21,424 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-11-25 23:22:21,424 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-11-25 23:22:21,424 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-11-25 23:22:21,430 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 23:22:21,431 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-11-25 23:22:21,435 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:22:21,436 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-11-25 23:22:21,452 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-11-25 23:22:21,453 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-11-25 23:22:21,454 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-11-25 23:22:21,455 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-11-25 23:22:21,459 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4984bdc-936d-439f-8fc2-df06cb6e81ca/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-wan-farsync.ko.cil.out.i[221005,221018] [2022-11-25 23:22:21,467 WARN L623 FunctionHandler]: Unknown extern function ldv_undefined_int [2022-11-25 23:22:21,498 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:22:21,536 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:22:21,639 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-11-25 23:22:21,640 WARN L623 FunctionHandler]: Unknown extern function ioremap_nocache [2022-11-25 23:22:21,642 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_byte [2022-11-25 23:22:21,646 WARN L623 FunctionHandler]: Unknown extern function pci_bus_write_config_byte [2022-11-25 23:22:21,649 WARN L623 FunctionHandler]: Unknown extern function __kmalloc [2022-11-25 23:22:21,711 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-11-25 23:22:21,712 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 23:22:21,712 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-11-25 23:22:21,714 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-11-25 23:22:21,716 WARN L623 FunctionHandler]: Unknown extern function dev_set_drvdata [2022-11-25 23:22:21,719 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 23:22:21,720 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-11-25 23:22:21,720 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-11-25 23:22:21,721 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_fmt [2022-11-25 23:22:21,722 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 23:22:21,722 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-11-25 23:22:21,725 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-11-25 23:22:21,726 WARN L623 FunctionHandler]: Unknown extern function __tasklet_schedule [2022-11-25 23:22:21,726 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-11-25 23:22:21,731 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-11-25 23:22:21,732 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 23:22:21,734 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:22:21,745 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:22:21,747 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:22:21,749 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:22:21,758 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-11-25 23:22:21,767 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-25 23:22:21,769 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-11-25 23:22:21,775 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:22:21,775 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout_uninterruptible [2022-11-25 23:22:21,776 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:22:21,777 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:22:21,786 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:22:21,792 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:22:21,796 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-25 23:22:21,796 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-11-25 23:22:21,798 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-11-25 23:22:21,798 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-25 23:22:21,804 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:22:21,805 WARN L623 FunctionHandler]: Unknown extern function dev_alloc_skb [2022-11-25 23:22:21,806 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-25 23:22:21,808 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-11-25 23:22:21,813 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:22:21,814 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:22:21,819 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 23:22:21,822 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:22:21,832 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:22:21,834 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:22:21,835 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:22:21,835 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:22:21,836 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:22:21,836 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:22:21,871 WARN L623 FunctionHandler]: Unknown extern function capable [2022-11-25 23:22:21,873 WARN L623 FunctionHandler]: Unknown extern function memdup_user [2022-11-25 23:22:21,874 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:22:21,875 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:22:21,877 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:22:21,882 WARN L623 FunctionHandler]: Unknown extern function hdlc_ioctl [2022-11-25 23:22:21,883 WARN L623 FunctionHandler]: Unknown extern function hdlc_ioctl [2022-11-25 23:22:21,884 WARN L623 FunctionHandler]: Unknown extern function hdlc_ioctl [2022-11-25 23:22:21,886 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-11-25 23:22:21,887 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-25 23:22:21,896 WARN L623 FunctionHandler]: Unknown extern function hdlc_open [2022-11-25 23:22:21,902 WARN L623 FunctionHandler]: Unknown extern function hdlc_close [2022-11-25 23:22:21,913 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 23:22:21,914 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 23:22:21,914 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:22:21,915 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 23:22:21,915 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:22:21,917 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-11-25 23:22:21,918 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:22:21,918 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-25 23:22:21,919 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:22:21,922 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:22:21,923 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:22:21,924 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:22:21,924 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-11-25 23:22:21,924 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:22:21,925 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:22:21,925 WARN L623 FunctionHandler]: Unknown extern function pci_request_regions [2022-11-25 23:22:21,927 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:22:21,927 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-25 23:22:21,928 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:22:21,928 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:22:21,929 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-11-25 23:22:21,929 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-25 23:22:21,929 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:22:21,930 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:22:21,930 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-11-25 23:22:21,931 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-25 23:22:21,931 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:22:21,932 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:22:21,932 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-11-25 23:22:21,932 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-25 23:22:21,933 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-11-25 23:22:21,933 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-11-25 23:22:21,933 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:22:21,934 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 23:22:21,935 WARN L623 FunctionHandler]: Unknown extern function alloc_hdlcdev [2022-11-25 23:22:21,937 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-25 23:22:21,938 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:22:21,938 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-11-25 23:22:21,939 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-11-25 23:22:21,939 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-25 23:22:21,941 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-11-25 23:22:21,941 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-11-25 23:22:21,941 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:22:21,947 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:22:21,947 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-11-25 23:22:21,948 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-25 23:22:21,948 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-11-25 23:22:21,948 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-11-25 23:22:21,948 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:22:21,949 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:22:21,949 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-11-25 23:22:21,950 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-25 23:22:21,950 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-11-25 23:22:21,950 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-11-25 23:22:21,950 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:22:21,956 WARN L623 FunctionHandler]: Unknown extern function unregister_hdlc_device [2022-11-25 23:22:21,957 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-11-25 23:22:21,957 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-11-25 23:22:21,957 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-11-25 23:22:21,958 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-11-25 23:22:21,960 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 23:22:21,960 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-11-25 23:22:21,965 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:22:21,965 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-11-25 23:22:21,966 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-11-25 23:22:21,967 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-11-25 23:22:21,967 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-11-25 23:22:21,968 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-11-25 23:22:21,968 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_c4984bdc-936d-439f-8fc2-df06cb6e81ca/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-wan-farsync.ko.cil.out.i[221005,221018] [2022-11-25 23:22:21,969 WARN L623 FunctionHandler]: Unknown extern function ldv_undefined_int [2022-11-25 23:22:21,976 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:22:22,205 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:22:22,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:22:22 WrapperNode [2022-11-25 23:22:22,206 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:22:22,207 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:22:22,207 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:22:22,207 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:22:22,214 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:22:22" (1/1) ... [2022-11-25 23:22:22,263 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:22:22" (1/1) ... [2022-11-25 23:22:22,389 INFO L138 Inliner]: procedures = 200, calls = 1513, calls flagged for inlining = 98, calls inlined = 84, statements flattened = 3353 [2022-11-25 23:22:22,389 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:22:22,390 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:22:22,390 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:22:22,390 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:22:22,400 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:22:22" (1/1) ... [2022-11-25 23:22:22,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:22:22" (1/1) ... [2022-11-25 23:22:22,420 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:22:22" (1/1) ... [2022-11-25 23:22:22,421 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:22:22" (1/1) ... [2022-11-25 23:22:22,509 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:22:22" (1/1) ... [2022-11-25 23:22:22,539 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:22:22" (1/1) ... [2022-11-25 23:22:22,566 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:22:22" (1/1) ... [2022-11-25 23:22:22,577 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:22:22" (1/1) ... [2022-11-25 23:22:22,610 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:22:22,611 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:22:22,612 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:22:22,612 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:22:22,612 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:22:22" (1/1) ... [2022-11-25 23:22:22,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:22:22,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4984bdc-936d-439f-8fc2-df06cb6e81ca/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:22:22,643 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4984bdc-936d-439f-8fc2-df06cb6e81ca/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:22:22,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4984bdc-936d-439f-8fc2-df06cb6e81ca/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:22:22,689 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-25 23:22:22,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-25 23:22:22,689 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-25 23:22:22,689 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-25 23:22:22,689 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-25 23:22:22,689 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-25 23:22:22,690 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-25 23:22:22,690 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-25 23:22:22,690 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-25 23:22:22,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-25 23:22:22,690 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2022-11-25 23:22:22,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2022-11-25 23:22:22,690 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-25 23:22:22,691 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-25 23:22:22,691 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-25 23:22:22,691 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-25 23:22:22,692 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2022-11-25 23:22:22,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2022-11-25 23:22:22,692 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-11-25 23:22:22,692 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-11-25 23:22:22,692 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2022-11-25 23:22:22,692 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2022-11-25 23:22:22,692 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-25 23:22:22,692 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-25 23:22:22,693 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-25 23:22:22,693 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-25 23:22:22,693 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-25 23:22:22,693 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-25 23:22:22,693 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 23:22:22,694 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 23:22:22,694 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2022-11-25 23:22:22,694 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2022-11-25 23:22:22,694 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2022-11-25 23:22:22,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2022-11-25 23:22:22,694 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-25 23:22:22,698 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-25 23:22:22,698 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2022-11-25 23:22:22,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2022-11-25 23:22:22,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 23:22:22,699 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-25 23:22:22,699 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-25 23:22:22,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-25 23:22:22,699 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-25 23:22:22,699 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-25 23:22:22,699 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-25 23:22:22,699 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-25 23:22:22,700 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2022-11-25 23:22:22,700 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2022-11-25 23:22:22,700 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-11-25 23:22:22,700 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-11-25 23:22:22,700 INFO L130 BoogieDeclarations]: Found specification of procedure hdlc_type_trans [2022-11-25 23:22:22,700 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlc_type_trans [2022-11-25 23:22:22,700 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-25 23:22:22,701 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-25 23:22:22,701 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2022-11-25 23:22:22,701 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2022-11-25 23:22:22,701 INFO L130 BoogieDeclarations]: Found specification of procedure farsync_type_trans [2022-11-25 23:22:22,701 INFO L138 BoogieDeclarations]: Found implementation of procedure farsync_type_trans [2022-11-25 23:22:22,701 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-25 23:22:22,702 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-25 23:22:22,702 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-25 23:22:22,702 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-25 23:22:22,702 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-25 23:22:22,702 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-25 23:22:22,702 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-25 23:22:22,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-25 23:22:22,703 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 23:22:22,703 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-25 23:22:22,703 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-25 23:22:22,703 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_hdlc [2022-11-25 23:22:22,703 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_hdlc [2022-11-25 23:22:22,703 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-25 23:22:22,703 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-25 23:22:22,704 INFO L130 BoogieDeclarations]: Found specification of procedure fst_issue_cmd [2022-11-25 23:22:22,704 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_issue_cmd [2022-11-25 23:22:22,704 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-25 23:22:22,704 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-25 23:22:22,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 23:22:22,704 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-25 23:22:22,704 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-25 23:22:22,705 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-25 23:22:22,705 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-25 23:22:22,705 INFO L130 BoogieDeclarations]: Found specification of procedure fst_disable_intr [2022-11-25 23:22:22,705 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_disable_intr [2022-11-25 23:22:22,705 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 23:22:22,705 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-25 23:22:22,705 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-25 23:22:22,705 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:22:22,706 INFO L130 BoogieDeclarations]: Found specification of procedure fst_cpureset [2022-11-25 23:22:22,706 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_cpureset [2022-11-25 23:22:22,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 23:22:22,706 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2022-11-25 23:22:22,706 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2022-11-25 23:22:22,706 INFO L130 BoogieDeclarations]: Found specification of procedure fst_process_rx_status [2022-11-25 23:22:22,706 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_process_rx_status [2022-11-25 23:22:22,706 INFO L130 BoogieDeclarations]: Found specification of procedure fst_q_work_item [2022-11-25 23:22:22,707 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_q_work_item [2022-11-25 23:22:22,707 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-25 23:22:22,707 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-25 23:22:22,707 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-25 23:22:22,708 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-25 23:22:22,708 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2022-11-25 23:22:22,708 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2022-11-25 23:22:22,708 INFO L130 BoogieDeclarations]: Found specification of procedure hdlc_ioctl [2022-11-25 23:22:22,709 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlc_ioctl [2022-11-25 23:22:22,709 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-11-25 23:22:22,709 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-11-25 23:22:22,709 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-25 23:22:22,709 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-25 23:22:22,710 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-25 23:22:22,711 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-25 23:22:22,711 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2022-11-25 23:22:22,712 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2022-11-25 23:22:22,712 INFO L130 BoogieDeclarations]: Found specification of procedure fst_clear_intr [2022-11-25 23:22:22,712 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_clear_intr [2022-11-25 23:22:22,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 23:22:22,712 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2022-11-25 23:22:22,713 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2022-11-25 23:22:22,713 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2022-11-25 23:22:22,713 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2022-11-25 23:22:22,713 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2022-11-25 23:22:22,713 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2022-11-25 23:22:22,713 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2022-11-25 23:22:22,713 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2022-11-25 23:22:22,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:22:22,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:22:22,714 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-25 23:22:22,714 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-25 23:22:23,293 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:22:23,297 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:22:24,224 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-25 23:22:24,237 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-25 23:22:24,248 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-25 23:22:24,249 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-25 23:22:24,252 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-25 23:22:24,252 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-25 23:22:24,263 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-25 23:22:26,140 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##415: assume !false; [2022-11-25 23:22:26,140 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##414: assume false; [2022-11-25 23:22:26,140 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##271: assume !false; [2022-11-25 23:22:26,140 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##270: assume false; [2022-11-25 23:22:26,141 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##276: assume false; [2022-11-25 23:22:26,141 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##277: assume !false; [2022-11-25 23:22:26,141 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##225: assume false; [2022-11-25 23:22:26,141 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##226: assume !false; [2022-11-25 23:22:26,141 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##239: assume false; [2022-11-25 23:22:26,141 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##240: assume !false; [2022-11-25 23:22:26,142 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume !false; [2022-11-25 23:22:26,142 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume false; [2022-11-25 23:22:26,142 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##104: assume !false;call ULTIMATE.dealloc(fst_ioctl_~#wrthdr~0#1.base, fst_ioctl_~#wrthdr~0#1.offset);havoc fst_ioctl_~#wrthdr~0#1.base, fst_ioctl_~#wrthdr~0#1.offset;call ULTIMATE.dealloc(fst_ioctl_~#info~0#1.base, fst_ioctl_~#info~0#1.offset);havoc fst_ioctl_~#info~0#1.base, fst_ioctl_~#info~0#1.offset; [2022-11-25 23:22:26,142 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##103: assume false; [2022-11-25 23:22:26,228 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:22:27,099 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:22:27,099 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 23:22:27,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:22:27 BoogieIcfgContainer [2022-11-25 23:22:27,105 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:22:27,108 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:22:27,108 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:22:27,111 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:22:27,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:22:19" (1/3) ... [2022-11-25 23:22:27,113 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1090f05f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:22:27, skipping insertion in model container [2022-11-25 23:22:27,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:22:22" (2/3) ... [2022-11-25 23:22:27,114 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1090f05f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:22:27, skipping insertion in model container [2022-11-25 23:22:27,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:22:27" (3/3) ... [2022-11-25 23:22:27,115 INFO L112 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-net-wan-farsync.ko.cil.out.i [2022-11-25 23:22:27,134 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:22:27,135 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 23:22:27,226 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:22:27,235 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=FINITE_AUTOMATA, 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;@1d85e5e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:22:27,235 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 23:22:27,245 INFO L276 IsEmpty]: Start isEmpty. Operand has 821 states, 503 states have (on average 1.3041749502982107) internal successors, (656), 511 states have internal predecessors, (656), 260 states have call successors, (260), 56 states have call predecessors, (260), 56 states have return successors, (260), 260 states have call predecessors, (260), 260 states have call successors, (260) [2022-11-25 23:22:27,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-25 23:22:27,253 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:22:27,254 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:22:27,254 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:22:27,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:22:27,259 INFO L85 PathProgramCache]: Analyzing trace with hash 279927461, now seen corresponding path program 1 times [2022-11-25 23:22:27,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:22:27,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411191343] [2022-11-25 23:22:27,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:22:27,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:22:27,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:22:27,869 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 23:22:27,870 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:22:27,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411191343] [2022-11-25 23:22:27,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411191343] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:22:27,871 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:22:27,871 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:22:27,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167028536] [2022-11-25 23:22:27,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:22:27,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:22:27,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:22:27,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:22:27,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:22:27,930 INFO L87 Difference]: Start difference. First operand has 821 states, 503 states have (on average 1.3041749502982107) internal successors, (656), 511 states have internal predecessors, (656), 260 states have call successors, (260), 56 states have call predecessors, (260), 56 states have return successors, (260), 260 states have call predecessors, (260), 260 states have call successors, (260) Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 23:22:29,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:22:29,208 INFO L93 Difference]: Finished difference Result 1640 states and 2353 transitions. [2022-11-25 23:22:29,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:22:29,211 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2022-11-25 23:22:29,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:22:29,228 INFO L225 Difference]: With dead ends: 1640 [2022-11-25 23:22:29,228 INFO L226 Difference]: Without dead ends: 819 [2022-11-25 23:22:29,237 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 23:22:29,241 INFO L413 NwaCegarLoop]: 1037 mSDtfsCounter, 0 mSDsluCounter, 1036 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2073 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:22:29,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2073 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-25 23:22:29,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 819 states. [2022-11-25 23:22:29,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 819 to 819. [2022-11-25 23:22:29,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 819 states, 503 states have (on average 1.3001988071570576) internal successors, (654), 509 states have internal predecessors, (654), 260 states have call successors, (260), 56 states have call predecessors, (260), 55 states have return successors, (258), 258 states have call predecessors, (258), 258 states have call successors, (258) [2022-11-25 23:22:29,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 819 states to 819 states and 1172 transitions. [2022-11-25 23:22:29,377 INFO L78 Accepts]: Start accepts. Automaton has 819 states and 1172 transitions. Word has length 15 [2022-11-25 23:22:29,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:22:29,378 INFO L495 AbstractCegarLoop]: Abstraction has 819 states and 1172 transitions. [2022-11-25 23:22:29,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 23:22:29,392 INFO L276 IsEmpty]: Start isEmpty. Operand 819 states and 1172 transitions. [2022-11-25 23:22:29,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-25 23:22:29,393 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:22:29,394 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:22:29,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 23:22:29,394 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:22:29,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:22:29,395 INFO L85 PathProgramCache]: Analyzing trace with hash 122933480, now seen corresponding path program 1 times [2022-11-25 23:22:29,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:22:29,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008260758] [2022-11-25 23:22:29,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:22:29,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:22:29,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:22:29,669 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:22:29,669 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:22:29,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008260758] [2022-11-25 23:22:29,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008260758] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:22:29,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [623213871] [2022-11-25 23:22:29,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:22:29,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:22:29,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4984bdc-936d-439f-8fc2-df06cb6e81ca/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:22:29,678 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4984bdc-936d-439f-8fc2-df06cb6e81ca/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:22:29,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4984bdc-936d-439f-8fc2-df06cb6e81ca/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 23:22:30,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:22:30,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 1001 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 23:22:30,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:22:30,334 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 23:22:30,338 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:22:30,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [623213871] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:22:30,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 23:22:30,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-11-25 23:22:30,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598864140] [2022-11-25 23:22:30,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:22:30,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:22:30,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:22:30,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:22:30,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:22:30,342 INFO L87 Difference]: Start difference. First operand 819 states and 1172 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 23:22:31,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:22:31,592 INFO L93 Difference]: Finished difference Result 2373 states and 3389 transitions. [2022-11-25 23:22:31,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:22:31,593 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2022-11-25 23:22:31,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:22:31,603 INFO L225 Difference]: With dead ends: 2373 [2022-11-25 23:22:31,603 INFO L226 Difference]: Without dead ends: 1559 [2022-11-25 23:22:31,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:22:31,608 INFO L413 NwaCegarLoop]: 1373 mSDtfsCounter, 1051 mSDsluCounter, 1024 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1051 SdHoareTripleChecker+Valid, 2397 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:22:31,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1051 Valid, 2397 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-25 23:22:31,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1559 states. [2022-11-25 23:22:31,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1559 to 1555. [2022-11-25 23:22:31,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1555 states, 954 states have (on average 1.29874213836478) internal successors, (1239), 965 states have internal predecessors, (1239), 490 states have call successors, (490), 111 states have call predecessors, (490), 110 states have return successors, (488), 487 states have call predecessors, (488), 488 states have call successors, (488) [2022-11-25 23:22:31,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1555 states to 1555 states and 2217 transitions. [2022-11-25 23:22:31,707 INFO L78 Accepts]: Start accepts. Automaton has 1555 states and 2217 transitions. Word has length 16 [2022-11-25 23:22:31,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:22:31,707 INFO L495 AbstractCegarLoop]: Abstraction has 1555 states and 2217 transitions. [2022-11-25 23:22:31,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 23:22:31,708 INFO L276 IsEmpty]: Start isEmpty. Operand 1555 states and 2217 transitions. [2022-11-25 23:22:31,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-25 23:22:31,710 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:22:31,710 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] [2022-11-25 23:22:31,722 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4984bdc-936d-439f-8fc2-df06cb6e81ca/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-25 23:22:31,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4984bdc-936d-439f-8fc2-df06cb6e81ca/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:22:31,917 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:22:31,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:22:31,918 INFO L85 PathProgramCache]: Analyzing trace with hash -2067942414, now seen corresponding path program 1 times [2022-11-25 23:22:31,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:22:31,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347249751] [2022-11-25 23:22:31,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:22:31,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:22:31,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:22:32,076 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:22:32,076 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:22:32,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347249751] [2022-11-25 23:22:32,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347249751] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:22:32,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [913696743] [2022-11-25 23:22:32,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:22:32,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:22:32,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4984bdc-936d-439f-8fc2-df06cb6e81ca/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:22:32,079 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4984bdc-936d-439f-8fc2-df06cb6e81ca/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:22:32,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4984bdc-936d-439f-8fc2-df06cb6e81ca/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 23:22:32,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:22:32,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 1131 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 23:22:32,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:22:32,659 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:22:32,659 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:22:32,693 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:22:32,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [913696743] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:22:32,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2138834199] [2022-11-25 23:22:32,714 INFO L159 IcfgInterpreter]: Started Sifa with 30 locations of interest [2022-11-25 23:22:32,714 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:22:32,718 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:22:32,724 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:22:32,725 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:22:34,445 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:22:34,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:34,766 INFO L217 Elim1Store]: Index analysis took 103 ms [2022-11-25 23:22:37,740 INFO L321 Elim1Store]: treesize reduction 972, result has 33.4 percent of original size [2022-11-25 23:22:37,741 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 57 select indices, 57 select index equivalence classes, 1542 disjoint index pairs (out of 1596 index pairs), introduced 57 new quantified variables, introduced 108 case distinctions, treesize of input 292 treesize of output 673 [2022-11-25 23:22:38,263 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 218 treesize of output 182 [2022-11-25 23:22:38,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:38,596 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 55 select indices, 55 select index equivalence classes, 1541 disjoint index pairs (out of 1485 index pairs), introduced 55 new quantified variables, introduced 0 case distinctions, treesize of input 282 treesize of output 446 [2022-11-25 23:22:38,967 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:22:40,383 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 818 treesize of output 663 [2022-11-25 23:22:40,633 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 818 treesize of output 663 [2022-11-25 23:22:40,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:40,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:40,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:40,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:40,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:40,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:40,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:40,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:40,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:40,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:40,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:40,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:40,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:40,960 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 91 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 0 case distinctions, treesize of input 899 treesize of output 749 [2022-11-25 23:22:41,325 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2022-11-25 23:22:49,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,064 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 6844 treesize of output 6507 [2022-11-25 23:22:49,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:49,900 INFO L217 Elim1Store]: Index analysis took 115 ms [2022-11-25 23:22:49,909 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 91 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 0 case distinctions, treesize of input 6849 treesize of output 6487 [2022-11-25 23:22:51,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:51,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:51,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:51,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:51,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:51,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:51,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:51,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:51,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:51,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:51,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:51,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:51,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:51,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:51,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:51,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:51,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:51,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:51,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:51,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:51,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:51,073 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 6840 treesize of output 6503 [2022-11-25 23:22:57,896 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 1 [2022-11-25 23:22:59,503 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-25 23:22:59,517 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-11-25 23:22:59,532 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-25 23:22:59,856 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 23:23:01,269 INFO L197 IcfgInterpreter]: Interpreting procedure dev_to_hdlc with input of size 100 for LOIs [2022-11-25 23:23:01,303 INFO L197 IcfgInterpreter]: Interpreting procedure spinlock_check with input of size 97 for LOIs [2022-11-25 23:23:01,313 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_module_put with input of size 133 for LOIs [2022-11-25 23:23:01,412 INFO L197 IcfgInterpreter]: Interpreting procedure __raw_spin_lock_init with input of size 106 for LOIs [2022-11-25 23:23:01,424 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:23:13,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [2138834199] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:23:13,629 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-25 23:23:13,629 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [4, 3, 4] total 30 [2022-11-25 23:23:13,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79374777] [2022-11-25 23:23:13,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:23:13,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-25 23:23:13,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:23:13,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-25 23:23:13,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=756, Unknown=0, NotChecked=0, Total=870 [2022-11-25 23:23:13,632 INFO L87 Difference]: Start difference. First operand 1555 states and 2217 transitions. Second operand has 25 states, 20 states have (on average 1.1) internal successors, (22), 18 states have internal predecessors, (22), 4 states have call successors, (5), 5 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-25 23:23:41,687 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 23:23:49,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:23:49,557 INFO L93 Difference]: Finished difference Result 3366 states and 4774 transitions. [2022-11-25 23:23:49,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-25 23:23:49,558 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 20 states have (on average 1.1) internal successors, (22), 18 states have internal predecessors, (22), 4 states have call successors, (5), 5 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 30 [2022-11-25 23:23:49,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:23:49,568 INFO L225 Difference]: With dead ends: 3366 [2022-11-25 23:23:49,568 INFO L226 Difference]: Without dead ends: 1808 [2022-11-25 23:23:49,572 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 63 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 459 ImplicationChecksByTransitivity, 14.5s TimeCoverageRelationStatistics Valid=163, Invalid=1243, Unknown=0, NotChecked=0, Total=1406 [2022-11-25 23:23:49,573 INFO L413 NwaCegarLoop]: 1113 mSDtfsCounter, 272 mSDsluCounter, 13634 mSDsCounter, 0 mSdLazyCounter, 6448 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 14747 SdHoareTripleChecker+Invalid, 6492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 6448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:23:49,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 14747 Invalid, 6492 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [44 Valid, 6448 Invalid, 0 Unknown, 0 Unchecked, 33.0s Time] [2022-11-25 23:23:49,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1808 states. [2022-11-25 23:23:49,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1808 to 1739. [2022-11-25 23:23:49,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1739 states, 1068 states have (on average 1.294007490636704) internal successors, (1382), 1082 states have internal predecessors, (1382), 533 states have call successors, (533), 139 states have call predecessors, (533), 137 states have return successors, (531), 529 states have call predecessors, (531), 531 states have call successors, (531) [2022-11-25 23:23:49,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1739 states to 1739 states and 2446 transitions. [2022-11-25 23:23:49,735 INFO L78 Accepts]: Start accepts. Automaton has 1739 states and 2446 transitions. Word has length 30 [2022-11-25 23:23:49,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:23:49,735 INFO L495 AbstractCegarLoop]: Abstraction has 1739 states and 2446 transitions. [2022-11-25 23:23:49,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 20 states have (on average 1.1) internal successors, (22), 18 states have internal predecessors, (22), 4 states have call successors, (5), 5 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-25 23:23:49,736 INFO L276 IsEmpty]: Start isEmpty. Operand 1739 states and 2446 transitions. [2022-11-25 23:23:49,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-25 23:23:49,749 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:23:49,749 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-25 23:23:49,756 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4984bdc-936d-439f-8fc2-df06cb6e81ca/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 23:23:49,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4984bdc-936d-439f-8fc2-df06cb6e81ca/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:23:49,955 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:23:49,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:23:49,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1329279176, now seen corresponding path program 1 times [2022-11-25 23:23:49,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:23:49,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880731171] [2022-11-25 23:23:49,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:23:49,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:23:50,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:23:50,199 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-25 23:23:50,199 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:23:50,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880731171] [2022-11-25 23:23:50,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880731171] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:23:50,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1451669093] [2022-11-25 23:23:50,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:23:50,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:23:50,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4984bdc-936d-439f-8fc2-df06cb6e81ca/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:23:50,202 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4984bdc-936d-439f-8fc2-df06cb6e81ca/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:23:50,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4984bdc-936d-439f-8fc2-df06cb6e81ca/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 23:23:50,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:23:50,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 1251 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 23:23:50,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:23:50,818 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-25 23:23:50,818 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:23:50,864 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-25 23:23:50,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1451669093] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:23:50,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [618068845] [2022-11-25 23:23:50,867 INFO L159 IcfgInterpreter]: Started Sifa with 36 locations of interest [2022-11-25 23:23:50,868 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:23:50,868 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:23:50,868 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:23:50,869 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:23:51,816 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 218 treesize of output 182 [2022-11-25 23:23:52,001 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:23:52,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:23:54,185 INFO L321 Elim1Store]: treesize reduction 560, result has 45.5 percent of original size [2022-11-25 23:23:54,192 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 55 select indices, 55 select index equivalence classes, 1487 disjoint index pairs (out of 1485 index pairs), introduced 55 new quantified variables, introduced 54 case distinctions, treesize of input 282 treesize of output 642 [2022-11-25 23:23:54,731 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:23:55,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:23:55,163 INFO L217 Elim1Store]: Index analysis took 118 ms [2022-11-25 23:23:57,877 INFO L321 Elim1Store]: treesize reduction 972, result has 33.4 percent of original size [2022-11-25 23:23:57,879 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 57 select indices, 57 select index equivalence classes, 1542 disjoint index pairs (out of 1596 index pairs), introduced 57 new quantified variables, introduced 108 case distinctions, treesize of input 292 treesize of output 673 [2022-11-25 23:23:59,726 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 818 treesize of output 663 [2022-11-25 23:23:59,965 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 818 treesize of output 663 [2022-11-25 23:24:00,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:00,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:00,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:00,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:00,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:00,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:00,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:00,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:00,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:00,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:00,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:00,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:00,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:00,502 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 91 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 0 case distinctions, treesize of input 899 treesize of output 749 [2022-11-25 23:24:00,761 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2022-11-25 23:24:09,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:09,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:09,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:09,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:09,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:09,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:09,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:09,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:09,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:09,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:09,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:09,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:09,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:09,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:09,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:09,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:09,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:09,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:09,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:09,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:09,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:09,772 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 6844 treesize of output 6507 [2022-11-25 23:24:10,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:10,643 INFO L217 Elim1Store]: Index analysis took 116 ms [2022-11-25 23:24:10,649 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 91 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 0 case distinctions, treesize of input 6849 treesize of output 6487 [2022-11-25 23:24:11,015 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 1 [2022-11-25 23:24:11,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:11,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:11,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:11,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:11,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:11,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:11,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:11,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:11,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:11,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:11,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:11,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:11,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:11,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:11,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:11,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:11,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:11,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:11,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:11,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:11,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:24:11,786 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 6840 treesize of output 6503 [2022-11-25 23:24:21,417 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-11-25 23:24:21,429 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-25 23:24:21,443 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-25 23:24:21,658 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 23:24:22,048 INFO L321 Elim1Store]: treesize reduction 61, result has 22.8 percent of original size [2022-11-25 23:24:22,048 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 29 treesize of output 36 [2022-11-25 23:24:22,088 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2022-11-25 23:24:22,623 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-25 23:24:22,623 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 11 [2022-11-25 23:24:23,722 INFO L321 Elim1Store]: treesize reduction 115, result has 43.9 percent of original size [2022-11-25 23:24:23,723 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 411 treesize of output 486 [2022-11-25 23:24:25,786 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2022-11-25 23:24:42,343 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-25 23:24:42,343 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 11 [2022-11-25 23:24:43,231 INFO L321 Elim1Store]: treesize reduction 115, result has 43.9 percent of original size [2022-11-25 23:24:43,232 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 411 treesize of output 486 [2022-11-25 23:24:47,356 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2022-11-25 23:24:48,880 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-25 23:24:48,882 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 11 [2022-11-25 23:24:51,369 INFO L197 IcfgInterpreter]: Interpreting procedure dev_to_hdlc with input of size 130 for LOIs [2022-11-25 23:24:51,387 INFO L197 IcfgInterpreter]: Interpreting procedure spinlock_check with input of size 97 for LOIs [2022-11-25 23:24:51,393 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_module_put with input of size 163 for LOIs [2022-11-25 23:24:51,541 INFO L197 IcfgInterpreter]: Interpreting procedure __raw_spin_lock_init with input of size 106 for LOIs [2022-11-25 23:24:51,548 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:25:32,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [618068845] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:25:32,418 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-25 23:25:32,418 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [4, 3, 4] total 36 [2022-11-25 23:25:32,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162322143] [2022-11-25 23:25:32,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:25:32,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-11-25 23:25:32,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:25:32,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-11-25 23:25:32,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=1138, Unknown=0, NotChecked=0, Total=1260 [2022-11-25 23:25:32,421 INFO L87 Difference]: Start difference. First operand 1739 states and 2446 transitions. Second operand has 31 states, 25 states have (on average 1.12) internal successors, (28), 23 states have internal predecessors, (28), 5 states have call successors, (6), 5 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-25 23:26:14,234 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 23:27:09,180 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:27:12,191 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 23:27:13,738 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 23:27:17,443 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 23:27:44,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:27:44,119 INFO L93 Difference]: Finished difference Result 4862 states and 6950 transitions. [2022-11-25 23:27:44,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-11-25 23:27:44,120 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 25 states have (on average 1.12) internal successors, (28), 23 states have internal predecessors, (28), 5 states have call successors, (6), 5 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 42 [2022-11-25 23:27:44,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:27:44,136 INFO L225 Difference]: With dead ends: 4862 [2022-11-25 23:27:44,136 INFO L226 Difference]: Without dead ends: 3304 [2022-11-25 23:27:44,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 93 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 761 ImplicationChecksByTransitivity, 70.8s TimeCoverageRelationStatistics Valid=287, Invalid=2365, Unknown=0, NotChecked=0, Total=2652 [2022-11-25 23:27:44,142 INFO L413 NwaCegarLoop]: 1251 mSDtfsCounter, 1560 mSDsluCounter, 9419 mSDsCounter, 0 mSdLazyCounter, 15870 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 96.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1689 SdHoareTripleChecker+Valid, 10670 SdHoareTripleChecker+Invalid, 16008 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 15870 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 100.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:27:44,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1689 Valid, 10670 Invalid, 16008 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [138 Valid, 15870 Invalid, 0 Unknown, 0 Unchecked, 100.1s Time] [2022-11-25 23:27:44,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3304 states. [2022-11-25 23:27:44,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3304 to 2929. [2022-11-25 23:27:44,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2929 states, 1796 states have (on average 1.292316258351893) internal successors, (2321), 1819 states have internal predecessors, (2321), 911 states have call successors, (911), 224 states have call predecessors, (911), 221 states have return successors, (909), 905 states have call predecessors, (909), 909 states have call successors, (909) [2022-11-25 23:27:44,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2929 states to 2929 states and 4141 transitions. [2022-11-25 23:27:44,984 INFO L78 Accepts]: Start accepts. Automaton has 2929 states and 4141 transitions. Word has length 42 [2022-11-25 23:27:44,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:27:44,985 INFO L495 AbstractCegarLoop]: Abstraction has 2929 states and 4141 transitions. [2022-11-25 23:27:44,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 25 states have (on average 1.12) internal successors, (28), 23 states have internal predecessors, (28), 5 states have call successors, (6), 5 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-25 23:27:44,985 INFO L276 IsEmpty]: Start isEmpty. Operand 2929 states and 4141 transitions. [2022-11-25 23:27:44,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-25 23:27:44,991 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:27:44,991 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] [2022-11-25 23:27:45,002 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4984bdc-936d-439f-8fc2-df06cb6e81ca/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 23:27:45,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4984bdc-936d-439f-8fc2-df06cb6e81ca/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:27:45,199 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:27:45,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:27:45,199 INFO L85 PathProgramCache]: Analyzing trace with hash 798506643, now seen corresponding path program 1 times [2022-11-25 23:27:45,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:27:45,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548473352] [2022-11-25 23:27:45,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:27:45,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:27:45,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:27:45,433 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:27:45,434 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:27:45,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548473352] [2022-11-25 23:27:45,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548473352] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:27:45,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [678337763] [2022-11-25 23:27:45,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:27:45,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:27:45,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4984bdc-936d-439f-8fc2-df06cb6e81ca/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:27:45,436 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4984bdc-936d-439f-8fc2-df06cb6e81ca/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:27:45,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4984bdc-936d-439f-8fc2-df06cb6e81ca/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 23:27:46,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:27:46,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 1185 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 23:27:46,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:27:46,049 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:27:46,049 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:27:46,095 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:27:46,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [678337763] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:27:46,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [419389163] [2022-11-25 23:27:46,101 INFO L159 IcfgInterpreter]: Started Sifa with 44 locations of interest [2022-11-25 23:27:46,101 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:27:46,102 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:27:46,102 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:27:46,102 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:27:46,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:27:48,721 INFO L321 Elim1Store]: treesize reduction 560, result has 45.5 percent of original size [2022-11-25 23:27:48,722 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 55 select indices, 55 select index equivalence classes, 1487 disjoint index pairs (out of 1485 index pairs), introduced 55 new quantified variables, introduced 54 case distinctions, treesize of input 282 treesize of output 642 [2022-11-25 23:27:49,158 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:27:49,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:27:49,502 INFO L217 Elim1Store]: Index analysis took 137 ms [2022-11-25 23:27:52,300 INFO L321 Elim1Store]: treesize reduction 972, result has 33.4 percent of original size [2022-11-25 23:27:52,301 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 57 select indices, 57 select index equivalence classes, 1542 disjoint index pairs (out of 1596 index pairs), introduced 57 new quantified variables, introduced 108 case distinctions, treesize of input 292 treesize of output 673 [2022-11-25 23:27:52,818 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 218 treesize of output 182 [2022-11-25 23:27:53,051 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:27:54,445 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 91 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 0 case distinctions, treesize of input 899 treesize of output 749 [2022-11-25 23:27:54,505 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2022-11-25 23:27:54,775 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 818 treesize of output 663 [2022-11-25 23:27:55,145 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 818 treesize of output 663 [2022-11-25 23:28:02,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:02,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:02,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:02,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:02,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:02,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:02,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:02,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:02,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:02,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:02,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:02,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:02,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:02,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:02,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:02,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:02,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:02,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:02,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:02,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:02,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:02,618 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 6844 treesize of output 6507 [2022-11-25 23:28:03,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:03,731 INFO L217 Elim1Store]: Index analysis took 111 ms [2022-11-25 23:28:03,737 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 91 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 0 case distinctions, treesize of input 6849 treesize of output 6487 [2022-11-25 23:28:04,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:04,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:04,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:04,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:04,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:04,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:04,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:04,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:04,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:04,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:04,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:04,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:04,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:04,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:04,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:04,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:04,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:04,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:04,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:04,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:04,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:28:04,895 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 6840 treesize of output 6503 [2022-11-25 23:28:11,849 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 1 [2022-11-25 23:28:13,422 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-25 23:28:13,434 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-25 23:28:13,453 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-11-25 23:28:13,665 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 23:28:15,962 INFO L197 IcfgInterpreter]: Interpreting procedure dev_to_hdlc with input of size 100 for LOIs [2022-11-25 23:28:16,001 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_check_return_value with input of size 97 for LOIs [2022-11-25 23:28:16,009 INFO L197 IcfgInterpreter]: Interpreting procedure spinlock_check with input of size 97 for LOIs [2022-11-25 23:28:16,016 INFO L197 IcfgInterpreter]: Interpreting procedure netif_wake_queue with input of size 138 for LOIs [2022-11-25 23:28:16,302 INFO L197 IcfgInterpreter]: Interpreting procedure __raw_spin_lock_init with input of size 106 for LOIs [2022-11-25 23:28:16,315 INFO L197 IcfgInterpreter]: Interpreting procedure netdev_get_tx_queue with input of size 140 for LOIs [2022-11-25 23:28:16,347 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:28:34,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [419389163] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:28:34,992 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-25 23:28:34,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [4, 3, 4] total 40 [2022-11-25 23:28:34,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042026011] [2022-11-25 23:28:34,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:28:34,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-11-25 23:28:34,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:28:34,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-11-25 23:28:34,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=1411, Unknown=0, NotChecked=0, Total=1560 [2022-11-25 23:28:34,996 INFO L87 Difference]: Start difference. First operand 2929 states and 4141 transitions. Second operand has 35 states, 27 states have (on average 1.1481481481481481) internal successors, (31), 24 states have internal predecessors, (31), 6 states have call successors, (7), 7 states have call predecessors, (7), 6 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) [2022-11-25 23:29:17,518 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 23:29:19,704 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 23:29:21,217 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:29:22,709 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 23:29:30,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:29:30,030 INFO L93 Difference]: Finished difference Result 3169 states and 4464 transitions. [2022-11-25 23:29:30,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-11-25 23:29:30,031 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 27 states have (on average 1.1481481481481481) internal successors, (31), 24 states have internal predecessors, (31), 6 states have call successors, (7), 7 states have call predecessors, (7), 6 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) Word has length 44 [2022-11-25 23:29:30,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:29:30,048 INFO L225 Difference]: With dead ends: 3169 [2022-11-25 23:29:30,048 INFO L226 Difference]: Without dead ends: 3163 [2022-11-25 23:29:30,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 95 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 932 ImplicationChecksByTransitivity, 27.8s TimeCoverageRelationStatistics Valid=241, Invalid=2515, Unknown=0, NotChecked=0, Total=2756 [2022-11-25 23:29:30,051 INFO L413 NwaCegarLoop]: 1113 mSDtfsCounter, 275 mSDsluCounter, 13716 mSDsCounter, 0 mSdLazyCounter, 7768 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 14829 SdHoareTripleChecker+Invalid, 7816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 7768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.7s IncrementalHoareTripleChecker+Time [2022-11-25 23:29:30,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [313 Valid, 14829 Invalid, 7816 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [48 Valid, 7768 Invalid, 0 Unknown, 0 Unchecked, 44.7s Time] [2022-11-25 23:29:30,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3163 states. [2022-11-25 23:29:31,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3163 to 3112. [2022-11-25 23:29:31,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3112 states, 1905 states have (on average 1.288713910761155) internal successors, (2455), 1934 states have internal predecessors, (2455), 966 states have call successors, (966), 243 states have call predecessors, (966), 240 states have return successors, (964), 958 states have call predecessors, (964), 964 states have call successors, (964) [2022-11-25 23:29:31,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3112 states to 3112 states and 4385 transitions. [2022-11-25 23:29:31,094 INFO L78 Accepts]: Start accepts. Automaton has 3112 states and 4385 transitions. Word has length 44 [2022-11-25 23:29:31,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:29:31,095 INFO L495 AbstractCegarLoop]: Abstraction has 3112 states and 4385 transitions. [2022-11-25 23:29:31,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 27 states have (on average 1.1481481481481481) internal successors, (31), 24 states have internal predecessors, (31), 6 states have call successors, (7), 7 states have call predecessors, (7), 6 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) [2022-11-25 23:29:31,095 INFO L276 IsEmpty]: Start isEmpty. Operand 3112 states and 4385 transitions. [2022-11-25 23:29:31,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-25 23:29:31,099 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:29:31,099 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] [2022-11-25 23:29:31,116 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4984bdc-936d-439f-8fc2-df06cb6e81ca/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 23:29:31,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4984bdc-936d-439f-8fc2-df06cb6e81ca/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:29:31,309 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:29:31,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:29:31,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1051514549, now seen corresponding path program 1 times [2022-11-25 23:29:31,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:29:31,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809868570] [2022-11-25 23:29:31,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:29:31,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:29:31,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:29:31,551 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-25 23:29:31,551 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:29:31,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809868570] [2022-11-25 23:29:31,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809868570] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:29:31,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1716823604] [2022-11-25 23:29:31,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:29:31,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:29:31,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4984bdc-936d-439f-8fc2-df06cb6e81ca/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:29:31,555 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4984bdc-936d-439f-8fc2-df06cb6e81ca/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:29:31,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4984bdc-936d-439f-8fc2-df06cb6e81ca/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 23:29:32,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:29:32,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 1239 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 23:29:32,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:29:32,160 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-25 23:29:32,160 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:29:32,192 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-25 23:29:32,192 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1716823604] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:29:32,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1180659562] [2022-11-25 23:29:32,196 INFO L159 IcfgInterpreter]: Started Sifa with 35 locations of interest [2022-11-25 23:29:32,196 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:29:32,196 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:29:32,197 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:29:32,197 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:29:33,049 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:29:33,141 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 218 treesize of output 182 [2022-11-25 23:29:33,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:36,325 INFO L321 Elim1Store]: treesize reduction 972, result has 33.4 percent of original size [2022-11-25 23:29:36,325 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 57 select indices, 57 select index equivalence classes, 1542 disjoint index pairs (out of 1596 index pairs), introduced 57 new quantified variables, introduced 108 case distinctions, treesize of input 292 treesize of output 673 [2022-11-25 23:29:36,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:36,788 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 55 select indices, 55 select index equivalence classes, 1541 disjoint index pairs (out of 1485 index pairs), introduced 55 new quantified variables, introduced 0 case distinctions, treesize of input 282 treesize of output 446 [2022-11-25 23:29:37,087 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:29:38,257 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 818 treesize of output 663 [2022-11-25 23:29:38,500 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 91 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 0 case distinctions, treesize of input 899 treesize of output 749 [2022-11-25 23:29:38,761 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2022-11-25 23:29:38,973 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 818 treesize of output 663 [2022-11-25 23:29:46,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,197 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 6844 treesize of output 6507 [2022-11-25 23:29:46,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:46,987 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 91 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 0 case distinctions, treesize of input 6849 treesize of output 6487 [2022-11-25 23:29:47,350 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 1 [2022-11-25 23:29:48,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:48,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:48,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:48,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:48,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:48,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:48,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:48,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:48,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:48,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:48,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:48,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:48,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:48,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:48,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:48,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:48,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:48,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:48,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:48,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:48,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:48,156 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 6840 treesize of output 6503 [2022-11-25 23:29:56,095 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-11-25 23:29:56,106 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-25 23:29:56,124 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-25 23:29:56,334 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 23:29:59,283 INFO L197 IcfgInterpreter]: Interpreting procedure dev_to_hdlc with input of size 100 for LOIs [2022-11-25 23:29:59,312 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_check_return_value with input of size 114 for LOIs [2022-11-25 23:29:59,337 INFO L197 IcfgInterpreter]: Interpreting procedure spinlock_check with input of size 97 for LOIs [2022-11-25 23:29:59,343 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_module_put with input of size 190 for LOIs [2022-11-25 23:29:59,794 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_blast_assert with input of size 188 for LOIs [2022-11-25 23:29:59,895 INFO L197 IcfgInterpreter]: Interpreting procedure __raw_spin_lock_init with input of size 106 for LOIs [2022-11-25 23:29:59,902 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:30:22,308 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '40777#(and (= |~#fst_tx_task~0.base| 47) (<= 1 ~ldv_module_refcounter~0) (= |~#fst_pci_dev_id~0.base| 46) (= ~LDV_IN_INTERRUPT~0 1) (= |~#fst_work_q_lock~0.base| 50) (= |~#type_strings~0.offset| 0) (= ~__mod_pci_device_table~0.class_mask 0) (= |~#fst_int_task~0.offset| 0) (<= ~ldv_module_refcounter~0 1) (= ~__mod_pci_device_table~0.subvendor 0) (= |~#fst_ops~0.base| 54) (= ~__mod_pci_device_table~0.class 0) (= |~#fst_work_intq~0.offset| 0) (= 55 |~#fst_driver~0.base|) (= 53 |~#type_strings~0.base|) (= |~#fst_int_task~0.base| 48) (= |~#fst_pci_dev_id~0.offset| 0) (= 12 ~fst_txq_high~0) (= 0 |~#fst_tx_task~0.offset|) (= |~#fst_excluded_list~0.offset| 0) (= ~fst_txq_low~0 8) (= 49 |~#fst_card_array~0.base|) (= 52 |~#fst_work_intq~0.base|) (= |~#fst_excluded_list~0.base| 45) (= ~__mod_pci_device_table~0.device 0) (= |~#fst_ops~0.offset| 0) (exists ((|v_ULTIMATE.start_fst_open_~port~4#1.base_BEFORE_CALL_8| Int) (|v_ULTIMATE.start_fst_open_~port~4#1.offset_BEFORE_CALL_8| Int)) (not (= (select (select |#memory_int| |v_ULTIMATE.start_fst_open_~port~4#1.base_BEFORE_CALL_8|) (+ |v_ULTIMATE.start_fst_open_~port~4#1.offset_BEFORE_CALL_8| 28)) 4))) (= 51 |~#fst_work_txq~0.base|) (= ~__mod_pci_device_table~0.driver_data 0) (= ~__mod_pci_device_table~0.vendor 0) (= ~__mod_pci_device_table~0.subdevice 0) (not (= (mod (+ |~#__this_module~0.offset| |~#__this_module~0.base|) 18446744073709551616) 0)) (= |~#fst_driver~0.offset| 0) (= |#NULL.offset| 0) (= 7 ~fst_max_reads~0) (<= ~fst_excluded_cards~0 0) (= |~#fst_work_q_lock~0.offset| 0) (<= 0 |#StackHeapBarrier|) (= |~#fst_work_txq~0.offset| 0) (= |#NULL.base| 0) (<= 0 ~fst_excluded_cards~0) (= |~#fst_card_array~0.offset| 0))' at error location [2022-11-25 23:30:22,308 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-25 23:30:22,308 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 23:30:22,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 4] total 7 [2022-11-25 23:30:22,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772526232] [2022-11-25 23:30:22,309 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 23:30:22,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 23:30:22,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:30:22,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 23:30:22,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=1250, Unknown=0, NotChecked=0, Total=1406 [2022-11-25 23:30:22,311 INFO L87 Difference]: Start difference. First operand 3112 states and 4385 transitions. Second operand has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 1 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-11-25 23:30:25,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:30:25,087 INFO L93 Difference]: Finished difference Result 6224 states and 8772 transitions. [2022-11-25 23:30:25,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 23:30:25,088 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 1 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 45 [2022-11-25 23:30:25,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:30:25,108 INFO L225 Difference]: With dead ends: 6224 [2022-11-25 23:30:25,109 INFO L226 Difference]: Without dead ends: 3115 [2022-11-25 23:30:25,121 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 460 ImplicationChecksByTransitivity, 22.4s TimeCoverageRelationStatistics Valid=156, Invalid=1250, Unknown=0, NotChecked=0, Total=1406 [2022-11-25 23:30:25,122 INFO L413 NwaCegarLoop]: 1035 mSDtfsCounter, 0 mSDsluCounter, 2068 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3103 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-25 23:30:25,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3103 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-25 23:30:25,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3115 states. [2022-11-25 23:30:26,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3115 to 3115. [2022-11-25 23:30:26,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3115 states, 1908 states have (on average 1.2882599580712788) internal successors, (2458), 1937 states have internal predecessors, (2458), 966 states have call successors, (966), 243 states have call predecessors, (966), 240 states have return successors, (964), 958 states have call predecessors, (964), 964 states have call successors, (964) [2022-11-25 23:30:26,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3115 states to 3115 states and 4388 transitions. [2022-11-25 23:30:26,188 INFO L78 Accepts]: Start accepts. Automaton has 3115 states and 4388 transitions. Word has length 45 [2022-11-25 23:30:26,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:30:26,188 INFO L495 AbstractCegarLoop]: Abstraction has 3115 states and 4388 transitions. [2022-11-25 23:30:26,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 1 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-11-25 23:30:26,188 INFO L276 IsEmpty]: Start isEmpty. Operand 3115 states and 4388 transitions. [2022-11-25 23:30:26,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-11-25 23:30:26,191 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:30:26,192 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-11-25 23:30:26,207 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4984bdc-936d-439f-8fc2-df06cb6e81ca/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-25 23:30:26,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4984bdc-936d-439f-8fc2-df06cb6e81ca/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:30:26,401 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:30:26,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:30:26,402 INFO L85 PathProgramCache]: Analyzing trace with hash 601994222, now seen corresponding path program 2 times [2022-11-25 23:30:26,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:30:26,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798459152] [2022-11-25 23:30:26,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:30:26,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:30:26,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:30:26,704 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-25 23:30:26,705 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:30:26,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798459152] [2022-11-25 23:30:26,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798459152] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:30:26,706 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:30:26,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:30:26,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281223008] [2022-11-25 23:30:26,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:30:26,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:30:26,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:30:26,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:30:26,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:30:26,708 INFO L87 Difference]: Start difference. First operand 3115 states and 4388 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-11-25 23:30:29,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:30:29,760 INFO L93 Difference]: Finished difference Result 4520 states and 6390 transitions. [2022-11-25 23:30:29,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 23:30:29,760 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 48 [2022-11-25 23:30:29,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:30:29,774 INFO L225 Difference]: With dead ends: 4520 [2022-11-25 23:30:29,775 INFO L226 Difference]: Without dead ends: 3012 [2022-11-25 23:30:29,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:30:29,781 INFO L413 NwaCegarLoop]: 1037 mSDtfsCounter, 9 mSDsluCounter, 2062 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 3099 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:30:29,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 3099 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-25 23:30:29,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3012 states. [2022-11-25 23:30:30,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3012 to 3008. [2022-11-25 23:30:30,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3008 states, 1844 states have (on average 1.2874186550976139) internal successors, (2374), 1869 states have internal predecessors, (2374), 939 states have call successors, (939), 227 states have call predecessors, (939), 224 states have return successors, (937), 932 states have call predecessors, (937), 937 states have call successors, (937) [2022-11-25 23:30:30,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3008 states to 3008 states and 4250 transitions. [2022-11-25 23:30:30,466 INFO L78 Accepts]: Start accepts. Automaton has 3008 states and 4250 transitions. Word has length 48 [2022-11-25 23:30:30,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:30:30,467 INFO L495 AbstractCegarLoop]: Abstraction has 3008 states and 4250 transitions. [2022-11-25 23:30:30,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-11-25 23:30:30,468 INFO L276 IsEmpty]: Start isEmpty. Operand 3008 states and 4250 transitions. [2022-11-25 23:30:30,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-11-25 23:30:30,471 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:30:30,471 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-11-25 23:30:30,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 23:30:30,471 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:30:30,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:30:30,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1116712567, now seen corresponding path program 1 times [2022-11-25 23:30:30,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:30:30,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202063684] [2022-11-25 23:30:30,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:30:30,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:30:30,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:30:30,832 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-25 23:30:30,833 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:30:30,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202063684] [2022-11-25 23:30:30,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202063684] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:30:30,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [15727247] [2022-11-25 23:30:30,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:30:30,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:30:30,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4984bdc-936d-439f-8fc2-df06cb6e81ca/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:30:30,835 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4984bdc-936d-439f-8fc2-df06cb6e81ca/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:30:30,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4984bdc-936d-439f-8fc2-df06cb6e81ca/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-25 23:30:31,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:30:31,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 1307 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 23:30:31,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:30:31,466 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-25 23:30:31,466 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:30:31,530 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-25 23:30:31,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [15727247] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:30:31,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2037972180] [2022-11-25 23:30:31,533 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2022-11-25 23:30:31,533 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:30:31,533 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:30:31,534 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:30:31,534 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:30:32,286 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:30:32,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:35,134 INFO L321 Elim1Store]: treesize reduction 972, result has 33.4 percent of original size [2022-11-25 23:30:35,135 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 57 select indices, 57 select index equivalence classes, 1542 disjoint index pairs (out of 1596 index pairs), introduced 57 new quantified variables, introduced 108 case distinctions, treesize of input 292 treesize of output 673 [2022-11-25 23:30:35,509 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:30:35,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:35,787 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 55 select indices, 55 select index equivalence classes, 1541 disjoint index pairs (out of 1485 index pairs), introduced 55 new quantified variables, introduced 0 case distinctions, treesize of input 282 treesize of output 446 [2022-11-25 23:30:36,108 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 218 treesize of output 182 [2022-11-25 23:30:37,299 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 818 treesize of output 663 [2022-11-25 23:30:37,528 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 818 treesize of output 663 [2022-11-25 23:30:37,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:37,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:37,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:37,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:37,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:37,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:37,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:37,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:37,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:37,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:37,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:37,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:37,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:37,949 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 91 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 0 case distinctions, treesize of input 899 treesize of output 749 [2022-11-25 23:30:38,057 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2022-11-25 23:30:44,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:44,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:44,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:44,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:44,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:44,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:44,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:44,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:44,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:44,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:44,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:44,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:44,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:44,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:44,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:44,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:44,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:44,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:44,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:44,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:44,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,000 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 6844 treesize of output 6507 [2022-11-25 23:30:45,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:45,800 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 91 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 0 case distinctions, treesize of input 6849 treesize of output 6487 [2022-11-25 23:30:46,186 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 1 [2022-11-25 23:30:46,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:46,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:46,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:46,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:46,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:46,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:46,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:46,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:46,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:46,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:46,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:46,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:46,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:46,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:46,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:46,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:46,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:46,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:46,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:46,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:46,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:30:46,960 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 6840 treesize of output 6503 [2022-11-25 23:30:54,644 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-25 23:30:54,656 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-11-25 23:30:54,667 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-25 23:30:54,861 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 23:30:55,186 INFO L321 Elim1Store]: treesize reduction 61, result has 22.8 percent of original size [2022-11-25 23:30:55,186 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 29 treesize of output 36 [2022-11-25 23:30:55,225 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2022-11-25 23:30:55,707 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-25 23:30:55,707 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 11 [2022-11-25 23:30:56,472 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-25 23:30:56,473 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2022-11-25 23:30:56,733 INFO L321 Elim1Store]: treesize reduction 115, result has 43.9 percent of original size [2022-11-25 23:30:56,734 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 434 treesize of output 509 [2022-11-25 23:31:05,640 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-25 23:31:05,641 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 11 [2022-11-25 23:31:06,927 INFO L321 Elim1Store]: treesize reduction 115, result has 43.9 percent of original size [2022-11-25 23:31:06,928 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 434 treesize of output 509 [2022-11-25 23:31:08,358 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2022-11-25 23:31:23,725 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-25 23:31:23,725 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 11 [2022-11-25 23:31:31,828 INFO L197 IcfgInterpreter]: Interpreting procedure dev_to_hdlc with input of size 93 for LOIs [2022-11-25 23:31:31,836 INFO L197 IcfgInterpreter]: Interpreting procedure spinlock_check with input of size 97 for LOIs [2022-11-25 23:31:31,846 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_module_put with input of size 126 for LOIs [2022-11-25 23:31:31,920 INFO L197 IcfgInterpreter]: Interpreting procedure __raw_spin_lock_init with input of size 106 for LOIs [2022-11-25 23:31:31,931 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:32:04,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [2037972180] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:32:04,782 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-25 23:32:04,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [7, 6, 7] total 46 [2022-11-25 23:32:04,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916696596] [2022-11-25 23:32:04,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:32:04,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-11-25 23:32:04,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:32:04,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-11-25 23:32:04,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=207, Invalid=1863, Unknown=0, NotChecked=0, Total=2070 [2022-11-25 23:32:04,784 INFO L87 Difference]: Start difference. First operand 3008 states and 4250 transitions. Second operand has 35 states, 29 states have (on average 1.103448275862069) internal successors, (32), 27 states have internal predecessors, (32), 5 states have call successors, (6), 5 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-25 23:33:25,569 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 23:33:47,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:33:47,581 INFO L93 Difference]: Finished difference Result 7341 states and 10477 transitions. [2022-11-25 23:33:47,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-11-25 23:33:47,583 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 29 states have (on average 1.103448275862069) internal successors, (32), 27 states have internal predecessors, (32), 5 states have call successors, (6), 5 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 49 [2022-11-25 23:33:47,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:33:47,606 INFO L225 Difference]: With dead ends: 7341 [2022-11-25 23:33:47,606 INFO L226 Difference]: Without dead ends: 5196 [2022-11-25 23:33:47,614 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 107 SyntacticMatches, 1 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1235 ImplicationChecksByTransitivity, 53.3s TimeCoverageRelationStatistics Valid=355, Invalid=3185, Unknown=0, NotChecked=0, Total=3540 [2022-11-25 23:33:47,615 INFO L413 NwaCegarLoop]: 1319 mSDtfsCounter, 1624 mSDsluCounter, 12048 mSDsCounter, 0 mSdLazyCounter, 19343 mSolverCounterSat, 158 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 77.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1755 SdHoareTripleChecker+Valid, 13367 SdHoareTripleChecker+Invalid, 19502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 158 IncrementalHoareTripleChecker+Valid, 19343 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 79.9s IncrementalHoareTripleChecker+Time [2022-11-25 23:33:47,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1755 Valid, 13367 Invalid, 19502 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [158 Valid, 19343 Invalid, 1 Unknown, 0 Unchecked, 79.9s Time] [2022-11-25 23:33:47,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5196 states. [2022-11-25 23:33:48,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5196 to 4780. [2022-11-25 23:33:48,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4780 states, 2924 states have (on average 1.2886456908344732) internal successors, (3768), 2966 states have internal predecessors, (3768), 1505 states have call successors, (1505), 354 states have call predecessors, (1505), 350 states have return successors, (1503), 1492 states have call predecessors, (1503), 1503 states have call successors, (1503) [2022-11-25 23:33:48,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4780 states to 4780 states and 6776 transitions. [2022-11-25 23:33:48,966 INFO L78 Accepts]: Start accepts. Automaton has 4780 states and 6776 transitions. Word has length 49 [2022-11-25 23:33:48,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:33:48,967 INFO L495 AbstractCegarLoop]: Abstraction has 4780 states and 6776 transitions. [2022-11-25 23:33:48,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 29 states have (on average 1.103448275862069) internal successors, (32), 27 states have internal predecessors, (32), 5 states have call successors, (6), 5 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-25 23:33:48,967 INFO L276 IsEmpty]: Start isEmpty. Operand 4780 states and 6776 transitions. [2022-11-25 23:33:48,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-25 23:33:48,970 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:33:48,971 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-11-25 23:33:48,984 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4984bdc-936d-439f-8fc2-df06cb6e81ca/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-25 23:33:49,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4984bdc-936d-439f-8fc2-df06cb6e81ca/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:33:49,179 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:33:49,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:33:49,179 INFO L85 PathProgramCache]: Analyzing trace with hash 567209476, now seen corresponding path program 1 times [2022-11-25 23:33:49,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:33:49,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952327760] [2022-11-25 23:33:49,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:33:49,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:33:49,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:33:49,381 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-25 23:33:49,381 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:33:49,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952327760] [2022-11-25 23:33:49,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952327760] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:33:49,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1117018723] [2022-11-25 23:33:49,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:33:49,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:33:49,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4984bdc-936d-439f-8fc2-df06cb6e81ca/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:33:49,383 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4984bdc-936d-439f-8fc2-df06cb6e81ca/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:33:49,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4984bdc-936d-439f-8fc2-df06cb6e81ca/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-25 23:33:49,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:33:49,958 INFO L263 TraceCheckSpWp]: Trace formula consists of 1242 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 23:33:49,961 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:33:50,008 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 23:33:50,009 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:33:50,093 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 23:33:50,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1117018723] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:33:50,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1665729902] [2022-11-25 23:33:50,098 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2022-11-25 23:33:50,099 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:33:50,099 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:33:50,099 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:33:50,100 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:33:50,768 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:33:50,897 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:33:51,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:33:52,773 INFO L321 Elim1Store]: treesize reduction 560, result has 45.5 percent of original size [2022-11-25 23:33:52,774 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 55 select indices, 55 select index equivalence classes, 1487 disjoint index pairs (out of 1485 index pairs), introduced 55 new quantified variables, introduced 54 case distinctions, treesize of input 282 treesize of output 642 [2022-11-25 23:33:53,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:33:55,844 INFO L321 Elim1Store]: treesize reduction 972, result has 33.4 percent of original size [2022-11-25 23:33:55,845 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 57 select indices, 57 select index equivalence classes, 1542 disjoint index pairs (out of 1596 index pairs), introduced 57 new quantified variables, introduced 108 case distinctions, treesize of input 292 treesize of output 673 [2022-11-25 23:33:56,272 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 218 treesize of output 182 [2022-11-25 23:33:57,589 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 823 treesize of output 668 [2022-11-25 23:33:57,795 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 91 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 0 case distinctions, treesize of input 909 treesize of output 759 [2022-11-25 23:33:58,011 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 1 [2022-11-25 23:33:58,191 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 823 treesize of output 668 [2022-11-25 23:34:05,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:05,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:05,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:05,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:05,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:05,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:05,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:05,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:05,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:05,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:05,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:05,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:05,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:05,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:05,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:05,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:05,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:05,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:05,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:05,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:05,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:05,860 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 6854 treesize of output 6517 [2022-11-25 23:34:06,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:06,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:06,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:06,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:06,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:06,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:06,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:06,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:06,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:06,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:06,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:06,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:06,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:06,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:06,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:06,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:06,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:06,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:06,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:06,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:06,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:06,583 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 6850 treesize of output 6513 [2022-11-25 23:34:07,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:34:07,568 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 91 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 0 case distinctions, treesize of input 6855 treesize of output 6493 [2022-11-25 23:34:08,027 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 1 [2022-11-25 23:34:16,218 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-25 23:34:16,238 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-25 23:34:16,258 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-11-25 23:34:16,488 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 23:34:22,155 INFO L197 IcfgInterpreter]: Interpreting procedure dev_to_hdlc with input of size 100 for LOIs [2022-11-25 23:34:22,182 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_check_return_value with input of size 97 for LOIs [2022-11-25 23:34:22,189 INFO L197 IcfgInterpreter]: Interpreting procedure spinlock_check with input of size 97 for LOIs [2022-11-25 23:34:22,196 INFO L197 IcfgInterpreter]: Interpreting procedure netif_wake_queue with input of size 95 for LOIs [2022-11-25 23:34:22,300 INFO L197 IcfgInterpreter]: Interpreting procedure __raw_spin_lock_init with input of size 106 for LOIs [2022-11-25 23:34:22,310 INFO L197 IcfgInterpreter]: Interpreting procedure netdev_get_tx_queue with input of size 97 for LOIs [2022-11-25 23:34:22,319 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:34:54,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1665729902] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:34:54,837 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-25 23:34:54,837 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [4, 6, 7] total 48 [2022-11-25 23:34:54,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287637753] [2022-11-25 23:34:54,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:34:54,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-11-25 23:34:54,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:34:54,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-11-25 23:34:54,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=217, Invalid=2039, Unknown=0, NotChecked=0, Total=2256 [2022-11-25 23:34:54,840 INFO L87 Difference]: Start difference. First operand 4780 states and 6776 transitions. Second operand has 36 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 26 states have internal predecessors, (34), 6 states have call successors, (7), 7 states have call predecessors, (7), 6 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6)